SEARCH ENGINEERING RESEARCH PAPERS

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

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

The commercial introduction of an automated, on-the-go soil pH sensor signalled 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

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,

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 ion selective electrodes were used to evaluate 8 different membranes (

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

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

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

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 North western 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

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

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

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

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

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,

Prediction of Soil Organic Matter Content Using VIS/NIR Soil Sensor
free download

Abstract: In present work, the potential of visible/near-infrared (VIS/NIR) soil sensor to predict organic matter (OM) contents in soils was studied using VIS/NIR soil sensor. Different preprocessed methods were studied to improve the correlations of spectra with organic

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 multi-sensor approach for high resolution airborne soil moisture mapping
free download

Abstract: Airborne remote sensing provides a viable option for high resolution mapping of nearsurface soil moisture that allows larger areas to be covered in greater spatial and temporal detail than has hereto been possible from traditional ground based techniques.

Estimation of Soil Water Content Using a 50 MHz Impedance Sensor: Soil Texture, Structure, and Salinity Interactions
free download

ABSTRACT. The Hydra Probe (HP) measures soil volumetric water content (qv) with an electrical impedance sensor that operates at a frequency of 50 MHz. The main objective of this research was to investigate the mixed effects of texture, disturbance, and salinity on

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

A BJT Based Soil Moisture Sensor for Irrigation Monitoring
free download

A soil moisture sensor is an integral aspect of the various precise irrigation techniques. This paper focuses on a BJT based soil moisture sensor which can be implemented in a large array spreading throughout an irrigated field. Soil conductivity depends on the moisture

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

Measurement of Soil Suction Using the MCS 6000 Sensor
free download

SUMMARY The MCS 6000 sensor was tested to evaluate its performance and reliability in measuring soil suction. The experimental results show good agreement with results obtained from other suction measurement techniques. It was concluded that the MCS

Design and testing of access-tube TDR soil water sensor
free download

Abstract. We developed the design of a waveguide on the exterior of an access tube for use in time-domain reflectometry (TDR) for in-situ soil water content sensing. In order to optimize the design with respect to sampling volume and losses, we derived the electromagnetic (

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

Fiber optic sensor system for detection of organic contaminants in soil
free download

A diffuse reectance, ber optic infrared (IR) spectroscopic system has been developed for use with the cone penetrometer system. This system will allow real time, in-situ site characterization by identifying and quantifying organic contaminants in soil. A

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

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

Combining on-the-go soil sensing and a wireless sensor network to increase irrigation water use efficiency
free download

Abstract An efficient irrigation system should meet the demands of crops and minimize the amount of water applied. To investigate water use efficiency, on-the-go sensing technology (in this case, field elevation and apparent electrical conductivity) was used to reveal soil

Guided Soil Sampling for Enhanced Analysis of Georeferenced Sensor-Based Data
free download

In recent years, increasingly popular precision agriculture technology has become one of primary beneficiaries of geocomputation methods. Modern farmers and their advisors have to deal with multiple field-scale data layers representing spatially variable growing

Dual soil moisture sensor for simultaneous water content and water potential measurements: Functional principle and first results
free download

Abstract Against the background of climate change and decreasing water availability in many parts of the world, there is the need for soil moisture information to improve water efficiency in agricultural irrigation. This study presents a newly developed sensor, which

Wireless Sensor Network Based Soil Moisture Monitoring System Design
free download

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

A Sensor for Monitoring Wetness at the Soil-Air Interface
free download

MATERIALS AND METHODS Sensor Development. Sensors were constructed to assess soil surface wetness by measuring resistance across a plane between two electrodes. Electronically, the sensor consisted of an AC half-bridge circuit, encased in epoxy resin,

Vibration effects of bumper suspension system on pipeline sensor-based platform for soilwater monitoring
free download

Abstract: This work examines the dynamic vibrational behavior of a bumper suspension system which is part of a sensor-based platform. The sensor-based platform travels through an underground pipeline system and monitors the soil water content in real time. The

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

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 Earth Science Technology Conference 25 June, 2008 Phase A Phase B Experiments Actuation Soil moisture sensor observation models (probes, radars/radiometers)

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

Coupling Wireless Sensor Networks and Autonomous Software for Integrated Soil Moisture Monitoring
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

A new fiber-optic sensor technology for rapid and inexpensive characterization of soilcontamination
free download

1. ABSTRACT The extent and complexity of worldwide environmental contamination are great enough that remediation will be extremely cosily and lengthy. There is an urgent need for characterization techniques that are rapid, inexpensive, and simple and that do not

The potentials of a novel acoustic sensor approach for determining soil texture and structure
free download

A proper assessment of soil properties is essential for achieving a sustainable agricultural production. The crop yield and the fertilizer application rate are found to be highly

Soil moisture based irrigation control system for rice cropping using wireless sensor network
free download

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

Multiprobe soil compaction sensor: An acoustical approach
free download

Abstract Compaction of agricultural soil, its measurement and management have been a matter of concern to farmers, equipment manufacturers and agricultural researchers for many years. In this research, an on-the-go multiprobe acoustic soil compaction estimation

Electrical impedance sensor to detect tunnels and infrastructure in soil
free download

Abstract: Tunnels and their detection have been a problem in warfare since the ancient world when they were employed to destroy fixed fortifications and provide secret means of ingress and egress. Recent events have highlighted the ongoing problems of tunnels and

Design and field tests of a directly coupled waveguide-on-access-tube soil water sensor
free download

ABSTRACT. Sensor systems capable of monitoring soil water content can provide a useful tool for irrigation control. Current systems are limited by installation depth and labor, accuracy, and cost. Time domain reflectometry (TDR) is an approach for monitoring soil

Analysis of vegetation heterogeneity as sensor for soil moisture patterns using remote sensing
free download

International Environmental Modelling and Software Society (iEMSs) 7th International Congress on Environmental Modelling and Software San Diego, California, USA, DP Daniel P. Ames, Nigel WT Quinn and Andrea E. Rizzoli (Eds.) http://www.iemss.org/society/index.php/iemss-

Effects of soil condition on landmine discrimination using GPR sensor
free download

It is well known that a huge number of buried landmines in the post-war countries are still active, and that many civilians are killed or injured by landmine related accidents every year. Therefore, detection and clearance of buried landmines is a very important issue. Metal

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

Use of DEM and ASTER sensor data for soil and agricultural characterizing
free download

A bstrac t. The objective of this study was to evaluate the role of ASTER and digital elevation model (DEM) data for classifying soils and agricultural lands. The obtained results from the image processing and spectral reflection revealed that the green plants have higher

Remote sensing of surface soil moisture from a spaceborne SAR sensor over the Sele plain
free download

ABSTRACT Backscattering data obtained from ERS-1 SAR imagery are used to verify the ability to detect field scale spatial and temporal variations of surface soil moisture from spaceborne microwave sensors, and to test sub-field scale detection capability. The

A channel model for underground sensor networks in the mixture of crude oil, water and soil
free download

Abstract: Future enhanced oil recovery technology can greatly benefit from the wireless sensor networks to effectively operate in underground oil reservoirs. In such a case, millimeter scale sensor nodes with antennas at the same scale have to be deployed in the

Determination of neodymium (III) in aqueous and soil samples with use of a high-sensitive and selective membrane sensor
free download

N-(furfuralidene)-N-isonicotinoylhydrazine (FIH) have been explored as a suitable neutral ionophore for preparation a highly selective Nd (III) PVC-based membrane sensor with sodium tetraphenyl borate (NaTPB) and oleic acid (OA) as anionic additives and benzyl

Research and Design of Soil Water Content Sensor Based on High-frequency Capacitive
free download

Abstract: Power supply and long distance cable are difficult in a field. Hence, a low power high-frequency capacitive soil water content sensor was developed. It consisted of an adjustable signal generating circuit, a signal attenuator, a true RMS detection circuit, a RC

Probabilistic Relational Model-based Scheduling Approach for Farmland Soil Sensor Network
free download

ABSTRACT Energy efficiency is one of the core issues of farmland soil sensor network (FSSN). For battery powered FSSN, the energy constraint restricts lifetime of WSN, which poses great challenged to its large scale application. Prior work has suggested

A Mole turning about soils: application of gamma ray soil sensor systems
free download

The use of proximal soil sensors for soil mapping is gradually increasing. Whereas tools as EM can be considered rather common used, gamma ray soil sensors are relatively new in soil science. Gamma ray sensors have a history in geology (Grasty et al., 1985) and the

Soil P2O5 Calibration and Mapping using Real-Time Soil Sensor (RTSS)
free download

Abstract There have been few researches using on-the-go measurement of P2O5. The objectives of this study were to measure soil P2O5 by using an on-the-go Real-Time Soil Sensor (RTSS) and to create soil P2O5 maps. The experiment was conducted on a 4-ha

NINETEEN-SOIL-PARAMETER CALIBRATION MODELS AND MAPPING FOR UPLAND FIELDS USING THE REAL-TIME SOIL SENSOR
free download

ABSTRACT In precision agriculture, rapid, non-destructive, cost-effective and convenient soil analysis techniques are needed for soil management, crop quality control using fertilizer, manure and compost, and variable-rate input for soil variability in a field. The

Potential of soil sensor EM38 measurements for soil fertility mapping in the Terrace soil of Bangladesh
free download

Conventional agriculture and mono-culture of rice has caused degradation of agricultural land in Bangladesh. Chemical fertilizer based soil fertility management is commonly practiced which is inefficient. Land degradation and soil fertility decline has evident in

MEASURING ERROR ON WORKING DEPTH OF REAL-TIME SOIL SENSOR
free download

ABSTRACT This paper described about the measuring error on working depth of the Real- time soil sensor (RTSS). It is necessary for accurately evaluating to observe the variation on the working depth, because the RTSS run in various real field conditions, such as soft or

The Hydra Probe Soil Sensor
free download

This manual is a comprehensive guide to the Stevens Hydra Probe Soil Sensor. Contained within this manual is a theoretical discussion of soil physics that explains the theory behind how electromagnetic soil sensors work as well as a discussion about vadose zone

Low cost soil sensor based on impedance spectroscopy for in-situ measurement
free download

Soil moisture is a significant element in the water cycle, on an agricultural and in land interaction. In crop production, soil plays a key role as a physical support and a reservoir of water and nutrients. Decisions for optimized input rates of water are largely based on

project A traffic light soil water sensor for resource poor farmers: proof of concept
free download

2 Executive summary The purpose of this project is to build literacy around soil water among researchers, extension workers and farmers, through a simple sensor coupled with visual colour display. Knowing how much water is in the soil is vital for irrigation management, so

Design, construction and characterization of an electro-chemical sensor of mercury in soil
free download

The San Joaquin mining district of Querétaro, Mexico is located in the north of the state, at the southern tip of the Sierra Gorda, Sierra Madre Oriental mountain range. Hydro-thermal processes, originating from Tertiary magmatism, have operated in the region for millions of

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

A modified arrangement of multi-prismatic tips on a horizontal sensor for on-the-go measurement of soil mechanical resistance
free download

Abstract A study was conducted to investigate a different arrangement of prismatic tips on a tine for on-the-go measuring soil mechanical resistance at various compacted soil layers in the soil bin. In order to do this, four prismatic tips with apex angle of 30º and base area of

A New Opto-electronic Sensor for Soil Humidity Measurement–Evaluation by Numerical Modelling with Hydrus 2D Software
free download

Objectives New opto-electrical sensor based on near infra-red reflectance principle uses homogeneous cladding material to get moisture measurement in surrounding soil. Therefore this study mainly focused on to, Model the water movement between cladding material (

A New Heat Pulse Sensor for Measuring Soil Profile Evaporation
free download

Materials and Methods The sensor. The new probe has seven thermocouple needles, and four heater needles each enclosing a heater wire and a thermocouple (Fig. 1). The top three needles are spaced 1-mm apart, and the remaining needles are spaced 6-mm apart.

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

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

DISTRIBUTED TEMPERATURE MONITORING OF SOIL USING FBG SENSORTECHNOLOGY
free download

Abstract: This paper presents the distributed temperature measurement of the agri-soil using fiber Bragg grating sensor. We have used two approaches to monitor the soil temperature and observe the shift in wavelength with change in temperature. The heating and cooling

ESTIMATING SOIL WATER DIFFUSIVITY ACROSS A RAINFED OLIVE ORCHARD USING MEASUREMENTS FROM A SENSOR NETWORK
free download

ABSTRACT. The assessment of soil hydraulic properties is essential for the description of water, energy and chemical transfer processes. However, their measurements are not straight-forward and require considerable effort. A simple methodology to estimate water

A Monopole-Coupled RFID Sensor For Pervasive Soil Moisture Monitoring
free download

Abstract:We present the design of an RFID-based passive sensor for pervasive soil moisture monitoring. Permittivity of soil changes with variations in moisture content causing a controlled change in the signal response of an RFID tag. We demonstrate that the

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 Comprehensive Review on Soil Parameter Sensing Technology and Sensor Calibration Techniques in Precision Agriculture
free download

Abstract Precision agriculture is better performed by collecting real-time data on weather, air quality, soil parameters, crop maturity, equipment and labor availability. The data predictive analysis is most commonly used to make smarter decisions for precision agriculture.

The Application of Wireless Sensor Networks for Measuring Plant and Soil Characteristics
free download

3. Discussion This study aims at measuring plant and soil behavior during the transpiration process by using a wireless sensor network Wireless sensor networks have

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

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

Reliable estimation of soil tension threshold values for sensor-based control of deficit irrigation systems
free download

Water for irrigation is often severely limited in arid and semi-arid regions, which poses a serious challenge for farmers to cope with. Therefore, sophisticated strategies are needed that allow the efficient use of the available water resources. One strategy is deficit

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

Multi-temporal Soil Erosion Modelling over the Mt Kenya Region with Multi-Sensor Earth Observation Data
free download

Accelerated soil erosion is the principal cause of soil degradation across the world. In Africa, it is seen as a serious problem creating negative impacts on agricultural production, infrastructure and water quality. Regarding the Mt Kenya region, specifically, soil erosion

A Wireless Passive Soil Water Content Sensor Tag
free download

ABSTRACT This paper describes the working principle of a low-cost, passive, contactless impedance-based sensor tag and a hand-held readout device for measuring soil water content. Laboratory tests with first prototypes in earthenware pots containing compost,

DEVELOPMENT OF A NEW SUBSURFACE STRAIN AND DISPLACEMENT SENSOR TO BE USED IN SOIL
free download

1. ABSTRACT Researchers at UC Davis are developing methods for using electrical resistivity concepts to measure strain and displacement in geotechnical centrifuge tests. One application is in printing very small electrodes on a flexible plastic sheet, in order to

COMPARISON OF REAL TIME SPRINKLER IRRIGATION SCHEDULING BASED ON SOILMOISTURE SENSOR, SPRINKLER IRRIGATION AND FLOOD
free download

ABSTRACT An investigation was undertaken to determine the effect of soil water and rooting depth monitoring of winter wheat on irrigation water saving. Two independent experiments were conducted in a split plot design for winter wheat for three irrigation methods with

An Advanced Wireless Sensor Networks for Soil Property Monitoring
free download

Abstract An advanced stand-alone wireless embedded network has been developed recently for monitoring of soil property at multiple depths and different soil water contents. Wireless Underground Sensor Networks (WUSN) consists of wireless devices that operate


FREE ENGINEERING RESEARCH PAPERS