RESEARCH PAPERS

moisture sensor research paper




Wheat moisture measurement with a fringing field capacitive sensor
free download

ABSTRACT Grain storage managers could improve the quality of stored grain if they could directly monitor stored grain moisture content, which is a key indicator of stored grain quality and an early indicator of deterioration. However, shortcomings of currently available 

Application of wireless sensor networks with GIS on the soil moisture distribution mapping
free download

ABSTRACT The development of microelectronics began in 1948 and continued with the miniaturisation of sensors during the last ten years. Today, microsystems which are used in silicon microtechnology are called microelectromechanical systems (MEMS). 

Monitoring Moisture Content In Surface Barriers Using A Passive Sensor Platform
free download

ABSTRACT Work is being performed to develop a versatile micro-power sensor platform for the purpose of periodic, remote sensing of environmental variables such as subsurface moisture or radiation. The key characteristics of the platform architecture are that the components 

New airborne sensor for soil moisture mapping
free download

ABSTRACT MIRAMAP has developed a fully operational digital airborne sensor to produce detailed soil moisture maps. The airborne soil moisture sensor is based on Passive Microwave Radiometry (PMR), a space technology for monitoring changes in soil moisture 

Response of ECH2O soil moisture sensor to temperature variation
free download

Temperature may affect dielectric moisture sensors through direct effects on sensor circuitry, through effects on the dielectric constant of water, and through effects on water-soil interaction. It is well known that the dielectric permittivity of water (efw) decreases 

Moisture sensor technology-A summary of techniques for measuring moisture levels in building envelopes
free download



Soil moisture sensor-based irrigation reduces water use and nutrient leaching in a commercial nursery
free download

Significance to Industry: High quality irrigation water is becoming increasingly scarce and it is becoming more important to use the available water efficiently. One approach to more efficient irrigation is the use of soil moisture sensors to control irrigation. Soil moisture 

Soil moisture sensor landscape irrigation controllers: A review of multi-study results and future implications
free download

ABSTRACT This is a review article with the objective of summarizing and relating the main findings of different research projects carried out in Florida that evaluated commercially available soil moisture sensor systems (SMSs) for residential irrigation control. The initial 

Ag thick film microstripline as nondestructive dielectric and moisture sensor for soybean
free download

ABSTRACT A cost effective miniaturized Ag thick film microstripline 1in x 1in was used as a nondestructive dielectric and moisture sensor for soybean. The in-touch overlay method provides ease of loading and unloading. The perturbation obtained in the transmittance 

Evaluation of a low cost capacitance ECH2O soil moisture sensor for citrus in a sandy soil
free download

Most citrus in central Florida is grown on sandy soils that have very low water holding capacities. A small change in soil volumetric water content can greatly affect available water. The purpose of this study was to determine if a moderately low cost sensor (ECH2O probe 

In-Situ sensor to detect moisture intrusion and degradation of coatings, composites, and adhesive bonds
free download

ABSTRACT An in-situ sensor, based on electrochemical impedance spectroscopy (EIS), has been developed that can detect the absorption of moisture in polymeric systems. In the case of a coated metal, moisture intrusion into the coating foretells corrosion of the substrate so 

A sensor for monitoring moisture of wheat residues: application in ascospore maturation of Pyrenophora tritici-repentis
free download

An electrical impedance sensor was constructed for monitoring water content and water potential (?) of wheat straw residues. The sensor consisted of two stainless-steel sewing needles mounted parallel on a pair of insulated terminals and inserted into the straw. 

Estimating near-surface soil moisture using active microwave satellite imagery and opticalsensor inputs
free download

ABSTRACT Recent advances in radar remote sensing techniques illustrate the potential for monitoring soil moisture conditions at spatial and temporal scales required for regional and local modeling efforts. This research examined the feasibility of producing accurate and 

Using moisture sensor to monitor fresh concrete uniformity
free download

ABSTRACT In this paper, moisture sensor was used to monitor moisture of concrete inside mixer at a relative high frequency for four different mixing procedures. Experiment were performance to study the moisture change inside the concrete throughout the mixing 

The influence of conductivity on the microstrip soil moisture sensor
free download

ABSTRACT In this work, the possibility to perform soil-independent measurement of soil moisture is investigated. By using test samples moisturized with water of different salinities, we analyse the influence of the soil conductivity on the output of the microstrip soil 

Proposal of a novel heat dissipation soil moisture sensor
free download

ABSTRACT A novel heat dissipation soil moisture sensor with only one bipolar transistor performing as both heating and temperature sensing element is presented. Due to the fact that the power dissipated in the transistor is a function of both the voltage and the current 

Implementation of linear trace moisture sensor by nano porous thin film moisture sensorand NLAmp
free download

ABSTRACT Almost all type of moisture sensors has a non-linear response. With out linearization it is difficult to apply such a non-linear sensor in electronics circuits, specially in analog electronics. Non linear sensor and transducers characteristic can be linearized 

Measurement of moisture absorption ratio of FRP using micro polymer sensor
free download



Coupling Wireless Sensor Networks and Autonomous Software for Integrated Soil MoistureMonitoring
free download

Water shortage is a global problem that has severe implications on economic growth and societal well-being, even in the most developed countries. As more than two-thirds of freshwater consumed worldwide are used for irrigation, large quantities of freshwater can 

Development of an electronic sensor for Date sorting based on moisture content
free download

ABSTRACT An electronic date moisture sensor utilizing a Wheatstone bridge circuit and an operational amplifier as a signal conditioner was developed. The sensor was designed to produce a voltage output that was proportional to date moisture content. The voltage 

Wireless soil moisture sensor networks for precision irrigation scheduling
free download

ABSTRACT Advanced nutrient management aims to optimise plant nutrient use and minimise deleterious environmental effects. Precision irrigation tools tackle this issue by controlling soil moisture status related to irrigation events, minimising drainage and run-off events, 

Calibration and evaluation of an improved low-cost soil moisture sensor
free download

ABSTRACT Irrigation scheduling in agriculture and turf requires a soil moisture sensor (SMS) that is accurate, reliable, and low-cost. Although there are many SMS on the market, their use is limited because they fall short in one of these areas. A need exists for a sensor that 

Turfgrass irrigation controlled by soil moisture sensor systems
free download

ABSTRACT More than 15% of all new homes in the US were built in Florida between 2005 and 2006, most of them with an automatic irrigation system, resulting in an increase in the demand for limited potable water resources. Soil moisture sensor (SMS) irrigation control 

Non-contact measurement of soil moisture content using thermal infrared sensor and weather variables
free download

ABSTRACT The use of remote sensing technology has made it possible for the non-contact measurement of soil moisture content (SMC). Many remote sensing techniques can be used such as microwave sensors, electromagnetic waves sensors, capacitance, and thermal 

Wireless Sensor Network Communication Architecture for Wide-Area Large Scale SoilMoisture Estimation and Wetlands Monitoring
free download

MAE Villegas, SY Tang, Y Qian ,University of Puerto Rico at Mayagez ,users.cs.fiu.edu ABSTRACT In this report, we investigate the important requirements of communication architecture of wireless sensor networks for wide-area large scale soil moisture estimation and wetlands monitoring and explain the key issues that are faced in the design of the 

Soil Moisture Based Irrigation Control System for Rice Cropping Using Wireless SensorNetwork
free download

Recent advances in information and communication technology (ICT) and wireless sensor networks have made new trends to merge in irrigation practice. Irrigation practice has 

Initial analyses and demonstration of a soil moisture smart sensor web
free download

Initial Analyses and Demonstration of a Soil Moisture Smart Sensor Web NASA ESTO AIST NASA Soil moisture sensor observation models (probes, radars/radiometers) • 

Soil moisture sensing controller and optimal estimator (soilscape): First deployment of the wireless sensor network and latest progress on soil moisture satellite
free download

ABSTRACT –We develop wireless sensor network, control system, and data analysis technologies for dynamic and near-real-time validation of space-borne soil moisture measurements, in particular those from the Soil Moisture Active and Passive (SMAP) 

Analysis and Optimal Design of a Microstrip Sensor for Moisture Content in Rubber Latex Measurement
free download

ABSTRACT The analysis and optimal design of a microstrip sensor for measuring the water content of rubber latex is described. The microstrip structure consists of one layer: substrate, protective layer and semi-infinite layer of wet medium. A functional relationship has been 

Research of Grain Moisture Measurement Method Based on Pressure Sensor
free download

ABSTRACT This paper presents a grain moisture measurement method based on storage pressure. The system mainly includes the structure and circuit hardware design of a test sensor. The software system using visual programming language, combined with 

A PRELIMINARY EVALUATION OF THE AQUAFLEX SOIL MOISTURE SENSOR
free download

The Aquaflex soil moisture sensor model SI. 60C-03 (Streat Instruments, Christchurch, New Zealand) measures percent volumetric soil moisture content. The objective of this trial was to compare soil moisture data from the Aquaflex sensor and the neutron probe.

Wireless Sensor Network Based Soil Moisture Monitoring System Design
free download

WY Chung, JF Villaverde, J Tan ,annals-csis.org ABSTRACT Soil moisture is the amount of water in the soil. It plays a crucial role for efficient photosynthesis, respiration, transpiration and transportation of minerals and other nutrients through the plant. Proper irrigation schedule is very critical to plant growth. This paper 

Experimental evaluation of water content determination in transformer oil by moisture sensor
free download

EM Vidmar ,sat ,wwwmailer.eimv.si ABSTRACT Paper presents experimental research on temperature dependency of water solubility in mineral transformer oils. Moisture sensor measurements and absolute water content determination by Karl Fisher titration method were performed under controlled 

Soil Moisture Sensor Phase II Virtual Test for Irrigation Association
free download

ABSTRACT The Irrigation Association (IA) through its Smart Water Applied Technology (SWAT) effort has been working for the last decade to develop an independent third party testing protocol designed to evaluate control systems that automatically adjust irrigation events 

Determination of Pre-Seal Vacuum Bake Conditions by Using Al2O3 In-Situ Moisture SensorChips
free download

It is well documented that excessive moisture trapped within sealed microelectronic packages can contribute significantly to device failure. 1 Design and process changes can complicate moisture control by causing a significant change in the ability of the product to 

ANALYSIS OF A CONDUTOR-BACKED COPLANAR WAVEGUIDE MOISTURE SENSOR
free download

K bin Khalid, TL Hua ,journal.masshp.net ABSTRACT The analysis of conductor-backed coplanar waveguide moisture sensor by using numerical method is presented. The structure of the sensor is based on the 4-layer system which consists of RT-duriod substrate, protective cover, moist layer and air. The 

soil moisture sensor controlled system over a conventional system. Turf grass quality was main-tained at acceptable levels in plots controlled by a soil moisture 
free download

In each case the farmers found it easy to take remedial action. Irrigation intervals were shortened for drip and irrigation time was made longer for sprinklers. Extra effort was made to limit water applications in the early stages so that nitrate was not moved below the 

Soil Moisture and Temperature sensor based intelligent irrigation water pump controlling system using PIC 16F72 Microcontroller
free download

ABSTRACT This paper aims in providing a user friendly, reliable and automated water pumping system. The paper aims in designing a system which is capable of detecting moisture level in the soil and capable of taking the decision of switching ON/OFF water 

Evaluation of a microwave sensor for inline measurement of roasted and green whole coffee bean moisture
free download

SUMMARY An opportunity exists to reduce the standard deviation of roast and ground coffee moisture by using in-line sensors to measure and control the amount of quench water added to roasted whole beans (RWB) at the exit of a roaster. An in-line microwave 

Laboratory Accuracy of Soil Moisture Sensor Irrigation Controllers
free download

Materials and Methods This study is being conducted in a controlled-temperature chamber at the University of Florida in Gainesville. Inside the chamber, platform scales with a resolution of 0.02 kg were set [Champ SQ base with CW-11 Indicator (Ohaus Corp., NJ)]. 

Wireless Soil Moisture Sensor
free download

D Wobschall, D Lakshmanan ,eesensors.com ? The output of a capacitance T network is (with proper component selection) nearly purely capacitive (little shunt conductance) even if the input is not? Such a network is ideal for coupling capacitance sensors which have the undesirable conductance effects? A 

An lmmersible Relative Saturation Moisture Sensor with Application to Transformer Oil
free download

PAGJR Melcher ,angelfire.com ABSTRACT Two polyimide-based capacitive humidity sensors, manufactured by Leeds Northrup, were calibrated in Shell Diala A transformer oil and 10 cSt silicone oil at 35, 50, and 70 C. The moisture content of the oils was found to be a linear function of the output 

Development of Commercial Trace Moisture Sensor: A Detailed Comparative Study on Microstructural and Impedance Measurements of Two Phases of
free download

M Pandey, P Mishra, D Saha, K Sengupta, SS Islam ,e-eml.org ABSTRACT Porous alumina thin film has been investigated in order to find its sensitivity in the trace moisture level. Alumina, with controlled porosity, were obtained through sol-gel process and sintered at 10°C steps between 400°C-1000°C. FESEM, BET, AFM and 

Soil Moisture Sensor Control for Conservation of Landscape Irrigation
free download

ABSTRACT Rain sensors are required on automatic irrigation systems installed after 1991 in Florida and recently, commercially available soil moisture sensors for irrigation control have been introduced into the market. Extensive testing facilities have been developed at the 

Managing Growth of Hibiscus acetosella by Controlling Substrate Moisture with SensorControlled Irrigation©
free download

A Bayer, M Chappell, J Ruter, M van Iersel ,ipps-srna.org Understanding how available water in the substrate affects plant growth and how much water plants use is important for effective irrigation management. A better understanding of plant water use will allow growers to irrigate more efficiently, increasing sustainability, 

Use of Soil Moisture Sensor-based Irrigation on Vegetable Crops
free download

Materials and Methods Field experiments were carried out at the University of Florida, Plant 2007. Tomato (Lycopersicon esculentum Mill. var.'Florida 47') and pepper (Capsicum 

The design of an integrated soil moisture sensor for agriculture.
free download

ABSTRACT This thesis details the design and testing of several soil moisture sensors for use in agricultural applications. The thesis concentrates on capacitive sensors measuring water content by the change in capacitance of two electrodes in direct contact with the soil 

Calibration of a Soil Moisture Sensor in Heterogeneous Terrain
free download

Department of Civil and Environmental Engineering, The University of Melbourne, Australia 2 School of Engineering, The University of Newcastle, Australia 3 NASA Goddard Space Flight Center, Greenbelt, USA Email: omerlin unimelb. edu. au Keywords: soil 

P2. 6 EVALUATION OF THE WVSS-II MOISTURE SENSOR USING CO-LOCATED IN-SITU AND REMOTELY SENSED OBSERVATIONS
free download

R Petersen, W Feltz, E Olson, S Bedka ,ams.confex.com 1. BACKGROUND Various studies over the past decade have shown that additional detailed measurements of the vertical, horizontal and temporal atmospheric moisture structure are necessary to improve forecasts of precipitation location, intensity and timing, as well as the 

TWO NEW ROOF MOISTURE SENSOR TECHNOLOGIES
free download

Early detection of leaks in low-slope, compact roo?ng systems is recognized to be important Such a roof costs approximately 76 to 108$/m'(7 to 10$/fti) to replace. When one considers that low-slope roofs often cover tens of thousands of square feet, the cost of allowing water 

Bulk Soil Moisture Estimation Using CosmOz Cosmic Ray Sensor and ANFIS
free download

RDATA Hawdon, B Cotching ,ict.csiro.au Fuzzy C means (FCM) algorithm and Adaptive Neuro-Fuzzy Inference System (ANFIS) to estimate soil moisture using cosmic ray soil moisture probes deployed across Australia. These probes are a brand new sensing technology still being evaluated. Preliminary 

Analysis of spatiotemporal soil moisture patterns at the catchment scale using a wirelesssensor network
free download

Soil water content plays a key role in partitioning water and energy fluxes and controlling the pattern of groundwater recharge. Despite the importance of soil water content, it is not yet measured in an operational way at larger scales. The aim of this paper is to present the 

Radar-based surface soil moisture retrieval over agricultural used sites–A multi-sensorapproach
free download

M Snchez-Marr, J Bjar, J Comas, A Rizzoli ,iemss.org ABSTRACT Spatial distributed information of isochronal surface soil moisture is very important to compensate the inaccuracy of initial conditions and the uncertainty of parameters in hydrological models at the landscape scale. In this paper the conceptual procedure to 

Prediction of soil moisture retention properties using proximal sensor tools
free download

ABSTRACT Site specific crop management is largely dependent upon the provision of adequate data and information including climate, disease and soil to support decision making. Readily available and rapidly sensed soil properties including proximally sensed and terrain 

A sensor array system for monitoring moisture dynamics in unsaturated soil
free download

ABSTRACT To facilitate investigations of moisture dynamics in unsaturated soil, we have developed a technique to qualitatively monitor patterns of saturation changes. Field results suggest that this device, the sensor array system (SAS), is suitable for determining 

The Sensitivity of Capacitive Throughput Sensor on Measured Material Moisture Content Changes
free download

ABSTRACT Capacitive throughput sensor for plant materials instantaneous throughput measurement was developed (Kumhla et al. 2009). In this research, the influence of material moisture content changes on capacitive throughput sensor measurement 

Monitoring Soil Moisture under Wheat Growth through a Wireless Sensor Network in Dry Conditions
free download

ABSTRACT Drought research requires data on precipitation and actual soil moisture of fields because precipitation is variable among years and the soil textures differ with crop fields. Measurement of soil water content in the field is simple but labor-intensive. A prototype of 

Innovative dual frequency microwave resonance sensor for inline moisture measurement in fluidized bed systems
free download

B Kollar, C Kindermann, K Bartscher, C Doescher ,nextpharma.com Results The United State's Food and Drug Administration (FDA) as well as the European Authorities more and more require the use of Quality by Design (QbD) based development strategies within drug product and manufacturing process development. The 

SUPERVISED MACHINE LEARNING BASED DYNAMIC ESTIMATION OF BULK SOILMOISTURE USING COSMIC RAY SENSOR
free download

ABSTRACT In this paper artificial neural network based sensor informatics architecture has been investigated; including proposed continuous daily estimation of area wise surface soil moisture using cosmic ray sensor's neutron count time series. Study was conducted based 

IMPROVEMENTS OF SEISMIC SENSOR DESIGN FOR SOIL MOISTURE MEASUREMENT
free download

ABSTRACT The main aim of the work is finding a general mathematical model to estimate the moisture content in the soil using seismic waves propagation, when the composition of the media is unknown. Using the new mathematical model here presented, the authors are 

New Compact NIT Sensor for On-line Measurement of Protein and Moisture in Grains
free download

HO Nielsen, J Mller, P Sendrup, E Micklander ,qbd.dk Sensor technology in a fast growing business area. The reasons for this are several: Industry segments like food, chemical and pharmaceuticals need information on product quality to control the process and document it. The health industry and environmental fields industry 

A method to increase vertical resolution of soil moisture measurements by TDR Trime FM3 tube sensor probe
free download

ABSTRACT A special method of overlapping measurements was proposed to increase the vertical resolution of a TDR tube soil moisture sensor-probe Trime FM3. An inversion algorithm has been developed to derive soil moisture profiles along single TDR sensor- 

A MULTI-SENSOR APPROACH FOR SURFACE SOIL MOISTURE ESTIMATION
free download

V Maggioni, V Paruscio, M Rinaldi ,people.eng.unimelb.edu.au Soil moisture is a key variable controlling the exchange of water and heat energy between the land and the atmosphere through evaporation and plant transpiration. As a result, soil moisture plays an important role in development of weather patterns and extreme-event 

AN EVANESCENTLY-COUPLED RESONANT SENSOR FOR NON DESTRUCTIVE MOISTURECONTENT ASSESSMENT
free download

ABSTRACT The knowledge of moisture content is essential for determining the state of preservation of various types of handwork: from building materials, such as bricks and concrete , to objects of artistic value, in particular frescos and painted wooden tables. In 

Moisture Fiber-optic Diode Laser Sensor
free download

R Jindal, S Tao, JP Singh ,Instrumentation Development ,icet.msstate.edu Moisture fiber optic sensors can be used for monitoring humidity in harsh environments, such as factories with electromagnetic noise unacceptable for regular capacitance-based moisture gages, radioactive waste storage facilities, etc. Several US DOE waste tank 

INVERSION TECHNIQUE TO DERIVE SOIL MOISTURE PROFILE FROM OVERLAPPING MEASUREMENTS WITH TDR TRIME FM3 TUBE SENSOR PROBE
free download

Monitoring of temporal changes of water content in soil profile during infiltration and following redistribution was a key task for field investigation at the experimental site in Saratov region of Russia. For this research a TDR tube sensor-probe TRIME FM3 was 

Determination of moisture content of the outer wall using hf-sensor technology
free download

ABSTRACT This paper describes the measurement of moisture using the hf-microwave method. The reconstruction of the Elbphilharmonie Hamburg, formally known as Kaiserspeicher A, serves as basis for this study of the method . A grid pattern is applied 

Microwave permittivity and moisture prediction of sunflower seeds using non resonant Ag thick film microstripline as a sensor
free download

ABSTRACT In this paper the studies in the Ku band (13-18 GHz) of non resonant Ag thick film microstripline overlaid with moisture laden sunflower (Helianthus Annuus) seed is reported. The perturbation obtained in the transmittance and reflectance of the thick film 

The Active Temperature, Ozone and Moisture Microwave Spectrometer, A New Global Climate Sensor
free download

In order to determine how our climate is changing and assess and improve climate models and their predictions, we are developing a new global remote sensing system to precisely and accurately measure key variables in the climate state, independent from models. The 

soil sensor research papers



Development of a wireless soil sensor network
free download

Abstract: There are currently few sensor systems capable of measuring soil parameters at multiple points in space over time consistently and economically, and without disrupting activities at the land surface. We have developed prototype nodes of a wireless sensor

Life under your feet: A wireless soil ecology sensor network
free download

Abstract Wireless sensor networks can revolutionize soil ecology by providing measurements at temporal and spatial granularities previously impossible. This paper presents an experimental soil monitoring network that we developed and deployed in a

FLOW-AID–a Deficit Irrigation Management System using Soil Sensor Activated Control: Case Studies
free download

ABSTRACT This paper presents a deficit irrigation management system that can be used at the farm level, when there is a limited water supply, poor water quality or when leaching is prohibited. It consists of a network of in-field irrigation controllers and soil sensors,

Field Experience Validates On-The-Go Soil pH Sensor
free download

The commercial introduction of an automated, on-the-go soil pH sensor signaled a new stage in site specific management. Veris Technologies held its first public field demonstration of the sensor at the Top Farmer Crop Workshop in July 2003, and sold the

Development, construction, and field evaluation of a soil compaction profile sensor
free download

ABSTRACT. Studies have shown that an increased level of soil compaction leads to a reduction in infiltration characteristics of soil, which in turn leads to low soil moisture. Conventional methods of measuring soil compaction are tedious, time consuming, and

Multi-sensor ISFET system for soil analysis
free download

ABSTRACT The use of ion-selective field-effect transistors (ISFETs) and flow injection analysis (FIA) was investigated for use as a system for real-time soil nitrate sensing. Conventional ionselective electrodes were used to evaluate 8 different membranes (

Controlling automated irrigation with a soil matric potential sensor
free download

EFFICIENT irrigation management requires both knowledge of soil water potential and the capability to control it to achieve optimum water conditions for plant growth. The effect of soil water potential on plant growth is well known and has prompted researchers to develop

Development of a" smart" wireless soil monitoring sensor prototype using RFID technology
free download

ABSTRACT. Radio Frequency Identification (RFID) technology is commonly used for object or animal identification and tracking. In this article, we explore the feasibility of its use in a rapid solution to wireless real- time monitoring of soil properties. A lab prototype system

Operational characteristics of the watermark model 200 soil water potential sensor for irrigation management
free download

SOIL WATER POTENTIAL SENSOR FOR IRRIGATION MANAGEMENT An ideal soil water sensor would respond instantaneously to changes in soil water content or potential, and would be inexpensive, reliable, maintenance free, accurate within the needed range, and

Development of a multi-sensor system for the low-sample recording of soil properties
free download

Abstract The fast and reliable measurement of soil characteristics is important for management decisions regarding crop farming. The University of Applied Sciences

Response of ECH2O soil moisture sensor to temperature variation
free download

Temperature may affect dielectric moisture sensors through direct effects on sensor circuitry, through effects on the dielectric constant of water, and through effects on water-soil interaction. It is well known that the dielectric permittivity of water (efw) decreases

Wireless sensor networks for soil science
free download

Wireless sensor networks can revolutionise soil ecology by providing measurements at temporal and spatial granularities previously impossible. This paper presents our first steps towards fulfilling that goal by developing and deploying two experimental soil monitoring

Design and validation of an on-the-go soil strength profile sensor
free download

ABSTRACT. Soil strength has traditionally been determined using the cone penetrometer, an instrument that provides highly variable discrete point measurements, making it difficult to detect statistically significant differences in the soil strength profile among treatments or

The development and application of the ThetaProbe soil water sensor
free download

The development and application of the ** Theta Probe soil water sensor JD Miller and GJ. Gaskin MLURI Technical Note Reference # 76 Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, AB 15 8QH Introduction The ThetaProbe is designed to

Soil moisture sensor-based irrigation reduces water use and nutrient leaching in a commercial nursery
free download

Significance to Industry: High quality irrigation water is becoming increasingly scarce and it is becoming more important to use the available water efficiently. One approach to more efficient irrigation is the use of soil moisture sensors to control irrigation. Soil moisture

A laboratory study of the hysteresis of a thermal conductivity soil suction sensor.
free download

ABSTRACT: An experimental program was set up to study the capillary hysteresis of the ceramic block for a newly developed thermal conductivity soil suction sensor. The testing program included two series of tests: one series of tests measured the capillary hysteresis

Some factors that influence soil suction measurements using a thermal conductivity sensor
free download

ABSTRACT: Thermal conductivity soil suction sensors have proven to hold great promise for the in situ measurement of soil suction. Thermal conductivity soil suction sensors can be subjected to the influences of environmental changes, such as temperature change, pH

Application of wireless sensor networks with GIS on the soil moisture distribution mapping
free download

Abstract The development of microelectronics began in 1948 and continued with the miniaturisation of sensors during the last ten years. Today, microsystems which are used in silicon microtechnology are called microelectromechanical systems (MEMS).

Monitoring deformation in rock and soil with TDR sensor cables
free download

Listed below are the top TDR sensor cable installation and communication lessons learned from installations by Northwestern University, KANE Geotech Inc., and GeoTDR Inc. Installations involved a wide range of situations that called for TDR monitoring of the

Spatial soil variability mapping using electrical conductivity sensor for precision farming of rice
free download

ABSTRACT Accurate and inexpensive methods for measuring soil properties are required to enhance interpretation of yield maps and improve planning for precision farming strategies. The conventional soil sampling is time consuming and requires intensive laboratory

Estimating near-surface soil moisture using active microwave satellite imagery and opticalsensor inputs
free download

ABSTRACT. Recent advances in radar remote sensing techniques illustrate the potential for monitoring soil moisture conditions at spatial and temporal scales required for regional and local modeling efforts. This research examined the feasibility of producing accurate and

Development of a wireless sensor network for field soil moisture monitoring
free download

Abstract A wireless sensor network system (WSNS) was developed and tested which was able to continuously monitor soil moisture content in a wheat field. The system consisted of 12 wireless nodes with star-type, tiered network architecture. Out of 12 wireless nodes, ten

Multi-sensor capacitance probes for monitoring soil water dynamics in tropical fruit orchards in south Florida
free download

Abstract. Determination of an effective method of monitoring water movement in the hard, porous limestone soil of south Florida should improve irrigation management for tropical fruit crops in the area. The effectiveness of multi-sensor ca pacitance probe systems for

In-field soil property monitoring using hybrid sensor network
free download

Abstract A hybrid soil sensor network (HSSN) for in-situ, real-time soil property monitoring was developed and deployed to an experimental field. The HSSN included a local wireless sensor network (LWSN), formed by multiple sensor nodes installed at selected locations in

Soil moisture sensor landscape irrigation controllers: A review of multi-study results and future implications
free download

ABSTRACT. This is a review article with the objective of summarizing and relating the main findings of different research projects carried out in Florida that evaluated commercially available soil moisture sensor systems (SMSs) for residential irrigation control. The initial

Determination of Lead (II), Cadmium (II) and Copper (II) in Waste-Water and Soil Extracts on Mercury Film Screen-Printed Carbon Electrodes Sensor
free download

ABSTRACT A sensor incorporating a three electrodes configuration have been fabricated using low cost screen-printing technology. These electrodes couples with Square Wave Stripping Voltammetry (SWSV) has provided a convenient screening tool for on-site

Design and field tests of an access-tube soil water sensor
free download

ABSTRACT. Accurate soil profile water content monitoring at multiple depths has heretofore been possible only using the neutron probe (NP) but with great effort and at infrequent time intervals. Despite the existence of several frequency domain electromagnetic (EM) sensor

Measurements of soil water content using time domain reflectometry sensor and water vapor in surface soil at the gobi site in the taklimakan desert
free download

Abstract Measurements of soil water content, relative humidity of soil air, and soil temperature in surface soil at 0.01 m and 0.05 m depths were carried out at a gobi site near Qira in the southern part of the Taklimakan Desert, China from the end of March 2001 to

Gamma and Electro Magnetics: a multi-sensor approach for the mapping of water related soilproperties
free download

Abstract For the mapping of subsoil water related soil properties a multi-sensor approach was chosen in order to obtain high resolution input for a decision support system. The gamma ray sensor the Mole was applied for top soil mapping, an EM38 for the mapping of

Soil Property Monitoring using 6LoWPAN-enabled Wireless Sensor Networks
free download

ABSTRACT The adaptation of the IPv6 protocol to the IEEE 802.15. 4 Low-power Wireless Personal Area Network (LoWPAN) standard has the potential to enable important new class Internet of Things (IoT) applications. The 6LoWPAN adaptation layer defined in IETF RFC

Wireless soil moisture sensor networks for precision irrigation scheduling
free download

Abstract Advanced nutrient management aims to optimise plant nutrient use and minimise deleterious environmental effects. Precision irrigation tools tackle this issue by controlling soil moisture status related to irrigation events, minimising drainage and run-off events,

Evaluating the profitability of a soil sensor-based variable rate applicator for on-the-go phosphorus fertilization
free download

ABSTRACT Variable rate (VR) phosphorus (P) fertilization aims at improving fertilizer use efficiency and environmental impacts by varying fertilizer rates according to the needs of each zone within a field. This study evaluates the profitability of an on-the-go VR

Using an electromagnetic sensor combined with geographic information systems to monitorsoil salinity in an area of southern Turkey irrigated with drainage
free download

ABSTRACT Soil salinity (ECe) monitoring is vital to the viability of large-scale irrigation schemes. In areas where soil or water salinity is a potential constraint to sustainable cropping, rapid, reliable and cost-effective mapping of the distribution and severity of in

Wireless Sensor Network Communication Architecture for Wide-Area Large Scale SoilMoisture Estimation and Wetlands Monitoring
free download

Abstract In this report, we investigate the important requirements of communication architecture of wireless sensor networks for wide-area large scale soil moisture estimation and wetlands monitoring and explain the key issues that are faced in the design of the

Sensor systems for precise location of depleted uranium in soil and for enhancing the recovery of both zero valence and uranium oxides
free download

ABSTRACT Depleted uranium (DU) has been the primary material used for the past two decades by the US military in armor piercing rounds. Domestic firing ranges that have been used for DU training purposes are located around the country and vary with regard to soil

Improving the performance of a sensor to monitor the dynamics of the hydraulic characteristics ofsoil
free download

Abstract Soil hydraulic characteristics are variable, being influenced by climate changes. Research conducted until now in this area has been based on field soil sampling; their laboratory analysis using experimental techniques; and the use of models and programs

Evaluation of a low cost capacitance ECH2O soil moisture sensor for citrus in a sandy soil
free download

Most citrus in central Florida is grown on sandy soils that have very low water holding capacities. A small change in soil volumetric water content can greatly affect available water. The purpose of this study was to determine if a moderately low cost sensor (ECH2O probe

A new soil water content sensor with temperature compensation design
free download

Abstract: The design and construction of a soil water content sensor with temperature compensation using the piecewise linear interpolation method was presented in this paper. The sensor out put often influenced by temperature, so temperature compensation must

A Mole collecting fingerprints: a gamma ray sensor for measuring physical properties of topsoil
free download

Summary: With the upcoming of precision agriculture the need for detailed soil information increases. General (grid) soil sampling simply becomes too costly for a farmer. Several techniques are therefore introduced to map soil with a high resolution and if possible for

Soil-surface wetness sensor: Report of further testing
free download

Free moisture (ie wetness) at the soil-air interface, or within the top few centimeters (cm) of soil is a very important factor in the development of certain plant pathogens and plant diseases. This variable has been difficult to estimate or measure with current technologies

Remote sensing and control of an irrigation system using a distributed wireless sensor network
free download

The wireless in-field sensing and control (WISC) software was coded by using Microsoft Visual C++.Net (ver. 7.1) as a console application type of Win32 project. (b) In-field wireless sensor network topology based on soil ECa map. Fig.

A real-time wireless smart sensor array for scheduling irrigation
free download

671–673. Hamrita and Hoffacker, 2005; TK Hamrita, EC Hoffacker; Development of a smart wireless soil monitoring sensor prototype using RFID technology. Appl. Eng. Performance of the Watermark granular matrix sensor in sandy soils. Appl. Eng. Agric., 17 (2001), pp.

Microprocessor-based irrigation system with moisture sensors in multiple zones
free download

Oct 29, 1991, Sep 22, 1992, The Toro Company, Irrigation control apparatus responsive to soil moisture. Sep 30, 1997, Jul 27, 1999, JR Simplot Company, Closed loop control system, sensing apparatus and Nov 8, 1999, Jun 11, 2002, Dean L. Cramer, Moisture sensor and irrigation

Improving nitrogen use efficiency for cereal production
free download

YIELD Journal of Plant Nutrition 2014 37:2; 2009 101; Optical Sensor-Based Algorithm for Two 2011 20115074; Nitrogen Release from Coated Urea Fertilizers in Different Soils Communications in Trotter] and on soil properties Journal of Plant Nutrition and Soil Science 2007

Irrigation scheduling: advantages and pitfalls of plant-based methods
free download

is directly controlled by a feedback controller operated by the stress sensor itself, so irrigation need of individual plants, and may well involve greater use of plant-based sensing systems. Stomatal closure with soil water depletion not associated with changes in bulk leaf water

Effect of sensor-based high frequency irrigation on bell pepper yield and water use
free download

system for citrus production based on tensiometers and wireless communication that is able to account for spatial production variables (eg different levels of maturity or varying soils types Phene and Howell (1984) used a custom made soil matric potential sensor to control

Software design for wireless sensor-based site-specific irrigation
free download

and Smajstrla (1992) compared indirect estimates with direct measurement of soil moisture. An automated irrigation system was proposed for remote in-field sensing and variable friendly software design for decision support and monitoring of wireless sensor-based site-specific

A remote sensing surface energy balance algorithm for land (SEBAL).: Part 2: Validation
free download

larger (15%), which could be attributed to the rapid moisture depletion of the coarse textured soils between the Soil moisture profiles measured in the field; As H changes almost continuously with the solar elevation, the instantaneous remote sensing based H-flux could not be

Precision agriculture a worldwide overview
free download

has been a major problem in potato cropping systems, especially in coarse-textured soils. for fields implemented with PA technologies, the interaction between tillage and soil/water erosion An optical sensor measuring spectral radiance in the red and NIR wavebands was used

Development of farmland soil moisture and temperature monitoring system based on wirelesssensor network [J]
free download

Chen Xiaoyun,Hu Guangdao(Institute of Mathematical Geology and Remote Sensing,China University on Hydrologic Processes and Prediction Models[J];Research of Soil and Water 100084, China);Resident In-Network-Programming Mechanism in Wireless Sensor Network[A

Wireless sensors in agriculture and food industry Recent development and future perspective
free download

with the smart transducer concept to produce intelligent wireless sensors that combine sensing, computing and survey and to collect data of soil water availability, soil compaction, soil fertility, biomass Signal from the moisture sensor was sent to a Bluetooth receiver on a host

Operational estimates of reference evapotranspiration
free download

sensing-based surface temperature and local meteorological data Remote Sensing of Environment Equations Using Bowen Ratio in New Brunswick, Maritime, Canada Sensors 2008 8:1; coefficient and parameters of soil moisture stress function using soil moisture monitoring

Irrigation control system
free download

method and apparatus with measurement of electrical, temperature and humidity parameters of soil. US5859536 *, Jan 8, 1997, Jan 12, 1999, Oliver Haugen, Moisture sensor having low 1997, Jul 27, 1999, JR Simplot Company, Closed loop control system, sensing apparatus and

Irrigation automation based on soil electrical conductivity and leaf temperature
free download

2. The electrode for sensing the soil moisture was placed at a depth of 50 mm from the surface within the root zone of a plant at the centre of the plot. Variation of moisture in soil causes variation in electrical resistance across the electrode of the sensor.

Irrigation scheduling protocols using continuously recorded trunk diameter measurements
free download

cially in poorly drained soils. that cheaper, even more accurate sensors will eventually be produced and that remote data transmission from the sensor directly to DA, Fereres E, Mata M, Girona J, Cohen M (1999) Sensitivity of continuous and discrete plant and soil water stress

Sensor-based automation of irrigation on bermudagrass, during wet weather conditions
free download

of applications to automatically control irrigation events has been investigated in coarse textured soils. to maintain soil moisture within two preset limits (upper and lower soil moisture thresholds TDR probes on sweet corn, and a commercially available dielectric sensor on green

A wireless application of drip irrigation automation supported by soil moisture sensors
free download

Networked sensing and valve actuation for spatially-variable microsprinkler irrigation. A real-time wireless smart sensor array for scheduling irrigation. Winter cover crops in a vegetable cropping system: Impacts on nitrate leaching, soil water, crop yield, pests and management


FREE ENGINEERING RESEARCH PAPERS