ENERGY SCAVENGING research papers
RESEARCH PAPERS

ENERGY SCAVENGING research papers




Energy scavenging for mobile and wireless electronics
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ABSTRACT Energy harvesting has grown from long-established concepts into devices for powering ubiquitously deployed sensor networks and mobile electronics. Systems can scavenge power from human activity or derive limited energy from ambient heat, light, 

Microfibre–nanowire hybrid structure for energy scavenging
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ABSTRACT A self-powering nanosystem that harvests its operating energy from the environment is an attractive proposition for sensing, personal electronics and defence technologies 1. This is in principle feasible for nanodevices owing to their extremely low 

Energy scavenging with shoe-mounted piezoelectrics
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ABSTRACT Decreasing size and power requirements of wearable microelectronics make it possible to replace batteries with systems that capture energy from the user's environment. Unobtrusive devices developed at the MIT Media Lab scavenge electricity from the forces 

Energy scavenging for wireless sensor networks: with special focus on vibrations
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The vast reduction in size and power consumption of CMOS circuitry has led to a large research effort based around the vision of ubiquitous networks of wireless communication nodes. The wireless devices are usually designed to run on batteries. However, as the 

Resonance tuning of piezoelectric vibration energy scavenging generators using compressive axial preload
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ABSTRACT Vibration energy scavenging, harvesting ambient vibrations in structures for conversion into usable electricity, provides a potential power source for emerging technologies including wireless sensor networks. Most vibration energy scavenging 

Energy scavenging for wireless sensor nodes with a focus on vibration to electricity conversion
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Page 1. Energy Scavenging for Wireless Sensor Nodes with a Focus on Vibration to Electricity Conversion by Shadrach Joseph Roundy  2003 Page 3. Energy Scavenging for Wireless Sensor Nodes with a Focus on Vibration to Electricity Conversion

Energy scavenging for inductively coupled passive RFID systems
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ABSTRACT Deployment of passive RFID systems or RFID-enhanced sensor networks requires good understanding of the energy scavenging principles. This paper focuses on the energy scavenging design considerations of inductively coupled passive RFID systems. The 

Alternative geometries for increasing power density in vibration energy scavenging for wireless sensor networks
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BIQUITOUS networks of wireless sensors have the potential to significantly impact industry and society. Example application areas include: smart buildings, manufacturing efficiency, vehicle control, the safety of food supplies, and health care. Ultra-low-power wireless 

Fabrication and characterization of high damping electrostatic micro devices for vibration energy scavenging
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ABSTRACT Advances in low power electronics and microsystems design open up the possibility to power small wireless sensor nodes thanks to energy scavenging techniques. Among the potential energy sources, we have focused on mechanical surrounding 

Vibrational energy scavenging with Si technology electromagnetic inertial microgenerators
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ABSTRACT In this work, the design, fabrication and characterization of an electromagnetic inertial microgenerator compatible with Si micro-systems technology is presented. The device includes a fixed micromachined coil and a movable magnet mounted on a 

Modeling and experimental verification of a dielectric polymer energy scavenging cycle
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ABSTRACT A feasibility study into the appropriateness of using a laminated dielectric electro active polymer (DEAP) film, called PolyPower TM, for energy scavenging purposes is reviewed in this work. The maximum strain in the film is limited to 35% and the maximum 

Ambient RF energy scavenging: GSM and WLAN power density measurements
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ABSTRACT To assess the feasibility of ambient RF energy scavenging, a survey of expected power density levels distant from GSM-900 and GSM-1800 base stations has been conducted and power density measurements have been performed in a WLAN 

Thin film piezoelectric energy scavenging systems for long term medical monitoring
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ABSTRACT For small, inexpensive, ubiquitous wireless sensors to be realized, all constituents of the device, including the power source, must be directly integratable. For long term application the device must be capable of scavenging power from its surrounding 

High damping electrostatic system for vibration energy scavenging
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ABSTRACT Advances in low power electronics and microsystems design open up the possibility to power small wireless sensor nodes thanks to energy scavenging techniques. Among the potential energy sources, we have focused on mechanical surrounding 

Transparent, near-infrared organic photovoltaic solar cells for window and energy-scavengingapplications
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ABSTRACT We fabricate near-infrared absorbing organic photovoltaics that are highly transparent to visible light. By optimizing near-infrared optical-interference, we demonstrate power efficiencies of 1.3±0.1% with simultaneous average visible transmission of 65%. 

Energy scavenging for sensor applications using structural strains
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ABSTRACT Resident sensors are envisioned for civil infrastructure applications, but providing long-term power for such devices remains a design challenge. An ideal solution would be to scavenge energy from structural strains and make the scavenging component a part of the 

Vibration energy scavenging via piezoelectric bimorphs of optimized shapes
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ABSTRACT This paper deals with optimization studies based on artificial intelligence methods. These modern optimization methods can be very useful for design improving of an electromagnetic vibration energy harvester. The vibration energy harvester is a complex 

Thermoelectric micro converters for cooling and energy-scavenging systems
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ABSTRACT This paper describes the fabrication process of thermoelectric microconverters, based on n-type bismuth telluride (Bi2Te3) and p-type antimony telluride (Sb2Te3) thin films. The films are fabricated by thermal co-evaporation with thermoelectric properties 

RF energy scavenging system utilising switched capacitor DC-DC converter
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An RF energy scavenging circuit implementing a power matched Villard voltage doubler followed by a switched capacitor DC-DC converter for scavenging ultra-low RF power levels - 20 dBm is presented. Measurement results for the circuit, fabricated in a 130 nm 

Energy scavenging power sources for household electrical monitoring
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ABSTRACT Household electricity monitoring comprises an important first step in devising effective residential energy usage strategies. Inexpensive, compact electric current sensors connected to wireless sensor networks are envisioned as a solution. This paper discusses 

Design of mechanical band-pass filters for energy scavenging: multi-degree-of-freedom models
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ABSTRACT In this article, a model of a mechanical band-pass filter to be used in energy scavengers is studied. The filter is an ensemble of cantilever beams where at the tip of each beam a mass, known as the proof mass, is mounted. A beam with a proof mass at its tip is 

Energy scavenging for wireless sensor nodes
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ABSTRACT Most wireless sensor nodes are powered by primary or secondary (rechargeable) batteries. These take up a large proportion of the size and weight, and often the cost, of the nodes, and furthermore the need to replace or recharge them creates a significant 

Vibration energy scavenging and management for ultra low power applications
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ABSTRACT In this work, the design of a mechanical vibration energy scavenging and management system is presented for ultra low power applications. A new maximum power point tracking (MPPT) scheme is proposed for piezoelectric conversion. This scheme 

A complete study of electroactive polymers for energy scavenging: modelling and experiments
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ABSTRACT Recent progresses in ultra low power microelectronics propelled the development of several microsensors and particularly the self powered microsystems (SPMS). One of their limitations is their size and their autonomy due to short lifetime of the batteries available 

Simulations of a non-planar lithography and of performance characteristics of arcade microthermopiles for energy scavenging
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HE uncountable number of wireless smart sensors to be deployed at the dawn of intelligent ambient age makes us believing that these will be undoubtedly autonomous. The competitive solutions are batteries, fuel-based micropower generators, solar cells and 

Design of a 2.45 GHz rectenna for electromagnetic (EM) energy scavenging
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ABSTRACT A compact dual polarized rectenna operating at 2.45 GHz is presented. It consists of a square aperture coupled patch antenna with a cross shaped slot etched on its surface that permits a patch side reduction of 32.5%. The patch size is 3.4 cm by 3.4 cm. The antenna 

Rotating and gyroscopic MEMS energy scavenging
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ABSTRACT Extracting energy from motion and vibration is an attractive route to powering wireless sensors, and MEMS (microelectromechanical systems) technology is well suited to miniaturizing such generators. Most reported MEMS motion-driven scavengers use linear 

Performance of mechanical bandpass filters used in energy scavenging in the presence of fabrication errors and coupling
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Rsum/ABSTRACT In this paper, several mathematical models that are more realistic representations of mechanical bandpass filters are studied. Such filters can be used in energy scavengers to convert energy from vibration sources into small amount of 

Piezoelectric power scavenging of mechanical vibration energy
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The process of acquiring the energy surrounding a system and converting it into usable electrical energy is termed power harvesting. With piezoceramic materials, it is possible to harvest power from vibrating structures. It has been proven that micro-to milliwatts of 

Energy scavenging based on transient thermal gradients: application to structural health monitoring of aircrafts
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ABSTRACT Results about energy capture from the environment associated with the self- powering of a wireless sensor network (WSN) for structural health monitoring of aircrafts (SHM) are presented. Thermal gradients taking place during specific flight phases are 

Energy-scavenging amplifiers for miniature solid-state lasers
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Longitudinally pumped miniature lasers are inefficient, partly because of their inefficient absorption of the pump light. Scavenging the unabsorbed pump light to pump an in-line amplifier can greatly enhance the efficiency of the system, with minimal added cost, size, 

Energy scavenging technique for powering wireless sensors
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ABSTRACT A capacitive scavenging device is proposed to extract energy from the electric field that surrounds the equipment in a substation. Related research has shown that switching techniques can be used to increase the useful power obtained. An experiment has been 

Custom IC for ultralow power RF energy scavenging
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ABSTRACT This letter presents a custom IC that provides an efficient interface between an ultralow power RF rectifying antenna (rectenna) power source and a microbattery for maximum power scavenging. The energy scavenger IC operates a boost converter in 

Dynamic simulation of an electromechanical energy scavenging device
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ABSTRACT This paper presents a multi-physic modeling of an electromechanical energy scavenging device. A permanent magnet, connected to the inner liner of a tyre, is accelerated along a guide by the tyre deformation during car motion; by interacting with 

A (6x3) cm2 self-contained energy-scavenging wireless sensor network node
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ABSTRACT The Quark node combines off-the-shelf components and two custom CMOS chips to implement a PicoRadio wireless sensor-network node that runs solely from energy scavenged from the environment. The node supports a 10m indoor transmission range 

Thin Film Piezoelectric Energy Scavenging Systems for an On-Chip Power Supply
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ABSTRACT For small, inexpensive, ubiquitous wireless sensors to be realized, all constituents of the device, including the power source, must be directly integratable. For long term application the device must be capable of scavenging power from its surrounding 

Energy dissipation and radical scavenging by the plant phenylpropanoid pathway
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ABSTRACT Environmental stresses such as high light, low temperatures, pathogen infection and nutrient deficiency can lead to increased production of free radicals and other oxidative species in plants. A growing body of evidence suggests that plants respond to these biotic 

Piezoelectric nanofibers for energy scavenging applications
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ABSTRACT Nanofiber-based piezoelectric energy generators could be scalable power sources applicable in various electrical devices and systems by scavenging mechanical energy from the environment. This review article highlights recent advances in nanofiber 

An energy scavenging autonomous surface vehicle for littoral surveillance
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ABSTRACT A prototype energy scavenging autonomous marine surface vehicle for littoral water surveillance has been developed and experimentally tested. The basic vehicle chassis is a heavily modified Stiletto Catamaran with the center structure removed and 

Scavenging by vertebrates: behavioral, ecological, and evolutionary perspectives on an importantenergy transfer pathway in terrestrial ecosystems
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Carrion use by terrestrial vertebrates is much more prevalent than conventional theory implies, and, rather than a curiosity of animal behavior, is a key ecological process that must be accounted for. Human aversion to rotted substances and difficulties associated with 

Simulation toolkit for energy scavenging inertial micro power generators
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ABSTRACT A critical issue to the optimization of a micro generator is the electromechanical link between the transducer and power processing circuitry because the performance of each subsystem depends on the behavior of the other. In order to accurately simulate and 

System design principles combining sub-threshold circuit and architectures with energy scavenging mechanisms
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ABSTRACT Ultra low power (ULP) circuits and energy scavenging mechanisms, though conceptually appealing, have been mainly studied in isolation to date. In this paper, we observe energy harvesting prototypes to derive system-level models and to reveal 

Energy scavenging from insect flight
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ABSTRACT This paper reports the design, fabrication and testing of an energy scavenger that generates power from the wing motion of a Green June Beetle (Cotinis nitida) during its tethered flight. The generator utilizes non-resonant piezoelectric bimorphs operated in the 

An ultra-low power silicon-on-sapphire adc for energy-scavenging sensors
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ABSTRACT We designed and fabricated an 8-bit analog-to-digital converter (ADC) in a 0.5 mum silicon-on-sapphire CMOS technology. The ultra-low power and low voltage design of the ADC was targeted for wireless sensor interfaces and energy-scavenging systems. The 

A multi-functional cantilever for energy scavenging from vibrations
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ABSTRACT To overcome the drawbacks of battery technology in embedded sensors, environmental energy is scavenged to power MEMS systems. Piezoelectric materials and electromagnetic set-ups are widely spread to transduce vibrations into electrical energy. 

Electromagnetic inertial generator for vibrational energy scavenging compatible with Si technology
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ABSTRACT This work reports the design and optimisation of an electromagnetic (em) vibrational generator for energy scavenging applications, compatible with Si technology. The device has a simplified structure formed by a fixed coil and a movable magnet onto a 

Vibration Energy Scavenging System With Maximum Power Tracking for Micropower Applications
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ABSTRACT In this work, we present a vibration-based energy scavenging system based on piezoelectric conversion for micropower applications. A novel maximum power point (MPP) tracking scheme is proposed to harvest the maximum power from the vibration system. A 

An efficient parallel SSHI rectifier for piezoelectric energy scavenging systems
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ABSTRACT Today green energy plays an important role in human life; thus, many methods have been used to harvest green energy from the surrounding environment for the service of humankind. One of the most popular methods involves the use of a piezoelectric (PE) 

Searcher bias and scavenging rates in bird/wind energy studies
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The commercial production of electricity using wind power has been increasing in the United States and Europe since the 1970s. The potential environmental impact of wind energy development in regard to birds dying because of collisions with wind turbine blades has 

Energy Scavenging/Harvesting
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? But laptops (30-50 watt hours) tend to be too big to directly power with microcells yet too small for standard fuel cells because the associated chemistry requires significant overhead in mass? Finally some devices are around such as radioactive decay to power batteries, 

Energy scavenging from low frequency vibrations
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The development of three energy conversion devices that are able to transform vibrations in their surroundings to electrical energy is discussed in this thesis. These energy harvesters are based upon a newly invented architecture called the Parametric Frequency Increased 

A hybrid energy scavenging sensor for long-term mechanical strain monitoring
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ABSTRACT We had previously reported a self-powered floating-gate level-crossing sensor/processor where the energy for sensing, computation and storage was extracted directly from the input strain variations. However, self-powering was found insufficient for 

Dielectric elastomer generators for foot plantar pressure based energy scavenging
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ABSTRACT Parasitic energy scavenging from human-generated vibrations with piezoelectric materials has long been studied in contrast to electromagnetic or conventional electrostatic transducers. Dielectric Elastomers (DEs) are now gaining notice as low-cost electrostatic 

Autonomous sensors on flexible foils powered by RFID and energy scavenging for environmental and goods monitoring
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ABSTRACT In this communication, we report on the development of a technology platform for the realization of the next generation of autonomous smart sensing systems. The technology platform is based on flexible foils envisioning low-cost and environmentally friendly 

Energy harvesting from vibration with alternate scavenging circuitry and tapered cantilever beam
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ABSTRACT Piezoelectric transducers are increasingly being used to harvest energy from environmental vibrations in order to either power remote sensors or charge batteries that power the sensors. In this paper, a new voltage compensation scheme for high-voltage- 


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