PiezoElectric Fractal Booster
using fractal math to boost targeted energies Jun 28
▶ A 2,000 YEAR OLD ELECTRIC BATTERY
Wireless sensor networks consist of numerous small devices all interacting to observe an environment and assemble useful data about that environment. Often when we speak of sensor networks and their potential applications, we expect to employ them in situations where little to no human interaction with the physical network will be possible. Hundreds, even thousands of tiny devices will be placed in some location, be it in an office building, the ocean floor, or even within a living organism, to monitor certain variables. Depending on the situations in which these networks are placed, supplying energy for these devices may be an incredibly difficult task. Energy Harvesting
A unique international research collaboration is working to develop technologies to help deliver 10 fold increases in chip processor speed, faster internet connections and huge energy savings worldwide. The project, called Nanostrain, brings together public institutions from across Europe supported by global industry leaders, to provide highly accurate measurements of strain in materials at the nano-scale and drive innovation in next generation electronic devices. A particular focus for the consortium is a class of materials (piezoelectrics) that change their shape in response to electric voltages. The project aims to advance commercial opportunities arising from controlled strain in nano-scale piezoelectrics including the development of the first Piezoelectric-Effect-Transistor (PET), a new digital switch with the potential to offer increased speed, reduced micro-chip size and lower power consumption. Characterising Piezoelectric materials for 10x faster computing - Materials Today
Specialized Circuit Drives 150-V Piezoelectric Motor Using Low-Voltage Op Amp | Analog content from Electronic Design A piezoelectric motor is a linear motor with bidirectional motion. It uses friction to grip the armature while a voltage is ramped to warp the piezoelectric material and move the armature. The voltage then is quickly removed. As the material springs back, it breaks away from the armature and returns to its zero position, leaving the armature a few micrometers further along its track. Repeat this at a kilohertz rate and for thousands of times.
Optimal observability-based modelling, design and characterization of piezoelectric microactuators - Abstract - Smart Materials and Structures
Cree`s LED upgrade kit could finish off linear fluorescents June 05, 2013 The firm's new breakthrough technology delivers contractors quick Retrofit to LED lighting Linear fluorescent lighting may have seen its last days thanks to the inventive, new Cree UR Series LED Upgrade Kit. Cree says it can deliver payback in less than two years and makes upgrading to LED lighting simple and easy. Payback has been calculated against a fluorescent three-lamp fixture (with lamp and ballast equal to 88 system watts) and based on typical commercial usage of 12 hours per day and $0.11 per kWh electric costs.
Piezoelectric Keyboard Screen
By Neil Hughes In an effort to make touchscreens less static, Apple has proposed that future iPhones and iPads could feature actuators that would provide haptic feedback to users, and also include sensors that would measure the force at which a user touches the screen. The concept was unveiled this week in a patent application discovered by AppleInsider entitled "Touch-Based User Interface with Haptic Feedback." The use of actuators underneath a touchscreen could allow users to actually feel elements on the screen, such as buttons or controls. The timing of the application being made public by the U.S. Patent and Trademark Office is interesting because one rumor from earlier this month incorrectly suggested Apple would introduce new haptic feedback technology in its third-generation iPad. Apple's haptic touch feedback concept uses actuators, senses force on iPhone, iPad
Boosting LED Efficiency: Zinc Oxide Microwires Improve Performance of Light-Emitting Diodes (LEDs) Through the Piezo-phototronic Effect Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are believed to be the first LEDs whose performance has been enhanced by the creation of an electrical charge in a piezoelectric material using the piezo-phototronic effect. Georgia Tech Regents professor Zhong Lin Wang (right) and graduate research assistant Ying Liu study light-emitting diodes whose performance has been enhanced through the piezo-phototronic effect. (Click image for high-resolution version. Credit: Gary Meek) By applying mechanical strain to the microwires, researchers at the Georgia Institute of Technology created a piezoelectric potential in the wires, and that potential was used to tune the charge transport and enhance carrier injection in the LEDs.
Researchers aim to close 'green gap' in LED technology A team of researchers from Rensselaer Polytechnic Institute has received $1.8 million in federal funding to improve the energy efficiency of green light-emitting diodes (LEDs). As part of the U.S. Department of Energy's (DOE) Solid-State Lighting Program, the team aims to close the "green gap" in LED technology by doubling or tripling the power output of green LEDs in three years, an advance that ultimately could lead to the replacement of incandescent and fluorescent lamps in general illumination applications. "Making lighting more efficient is one of the biggest challenges we face," says Christian Wetzel, the Wellfleet Career Development Constellation Professor, Future Chips, and associate professor of physics at Rensselaer. "Substantial reductions in the nation's dependence on primary energy imports will be possible once highly efficient solid-state light sources replace wasteful incandescent and fluorescent lighting."
Triboelectric Energy: The Future Of Renewable Power? By EarthTechling's Pete Danko: Where there’s power being produced, there are researchers looking into how it might be harvested and put to use, no matter how small the amount. Take triboelectric charging – it’s what’s behind the shock you get when you shuffle across a carpeted room and then, say, grab the refrigerator door handle. Friction got you charged up, and your subsequent contact with the metal led to a quick discharge. Seizing on this phenomenon, Georgia Tech University researchers report success in enhancing and capturing the electric charge produced when two transparent plastic materials rub against one another. “The fact that an electric charge can be produced through this principle is well known,” said Zhong Lin Wang, a Regents professor in the School of Materials Science & Engineering at the Georgia Institute of Technology.
MIT Develops an Energy-Harvesting Chip That You Can Shake and Bake ( - Consumer Electronics ) Over the years, we've seen researchers develop some rather unorthodox energy harvesting systems, including photovoltaics (solar panels), piezoelectric materials that react to motion, and thermoelectrics that turn heat into electricity. Now, MIT Professor of Electrical Engineering Anantha Chandrakasan and MIT doctoral student Saurav Bandyopadhyay are working on a chip that can harvest energy from all three of the same sources at the same time. According to the researchers, the chip can generate up to 0.15 volts from thermal differences, 0.7 volts from natural light, and five volts from vibrations. While each power source only produces a small amount of electricity, the researchers have found a way to effectively combine the energy from all three methods by rapidly switching between them.
Entry for 'Land art generator' competition. Second Prize Winner. 2010. Wind | Atelier DNA
Low Operating Voltage Superior Lifetime Even Under Extreme Conditions Very Large Operating-Temperature Range High Humidity Resistance Excellent Temperature Stability High Stiffness UHV Compatible to 10-9 hPa Sub-Millisecond Response & Sub-Nanometer Resolution Application Examples Precision Mechanics and Mechanical Engineering NanoPositioning / High-Speed Switching Active and Adaptive Optics Vibration cancellation Pneumatic & Hydraulic Valves Metrology / Interferometry Life Sciences, Medicine and Biology Download PICMA Piezo Actuator Datasheet Increased Lifetime and Higher Performance PICMA® (PI Ceramic Monolithic Actuator) piezoelectric actuators are characterized by their high performance and reliability, even in extremely harsh environments. They are superior to conventional multilayer actuators in industrial applications and high-endurance situations, where they show substantially longer lifetimes both in static and dynamic operation. PI Ceramic | Leader in Piezoelectric Actuator Technology, PZT Material | Products /Overview | Piezo Stack, Piezo Technology
The Road - The Trip For Life The world we live in is one where many people have poor eyesight, but surprisingly few can afford corrective lenses so that they can see clearly. This is because of the basic design of corrective optics; they have to be custom made for every frame and eyesight combination, and this greatly increases the cost. Some places, such as Zenni Optical, cut costs by pre-building lenses for every combination with a computer controlled system, and stockpiling them. This works to cut the cost down to less than 50 dollars or so, but that's still far outside the means of many of the poor, particularly in disadvantaged countries. Other efforts have focused upon making cheap, adjustable optics to serve these populations; for instance, Adaptive Eyecare of Oxford has developed lenses that use adaptable lenses filled with optically clear fluid; pumping more fluid between the optical membranes increases the deflection of the resulting lens, and thus increases the effective diopter of the lens.
New MIT chip harvests energy from three sources The problem with depending on one source of power in the drive toward the battery-free operation of small biomedical devices, remote sensors and out-of-the-way gauges is that if the source is intermittent, not strong enough or runs out altogether, the device can stop working. A small MIT research team has developed a low-power chip design capable of simultaneously drawing power from photovoltaic, thermoelectric, and piezoelectric energy sources. The design also features novel dual-path architecture that allows it to run from either onboard energy storage or direct from its multiple power sources.
MIT develops energy-harvesting chip - Laser Focus World
Piezoelectric vs Electrostatic Ultrasonic transducers come in two basic types, piezoelectric and electrostatic. The main difference between the two is that piezoelectric transducers use a ceramic material whereas electrostatic transducers contain a thin metal membrane. Ultrasonic Transducers, Piezoelectric vs Electrostatic | APG Sensors
MIT Chip Harvests Energy from Heat, Light and Movement Researchers at MIT have developed a new chip that can continually and almost simultaneously draw energy from three different sources. The chip is designed to harness thermoelectric (heat), photovoltaic (light) and piezoelectric (movement) energy. The new chip either runs directly off of that energy or off of onboard energy storage. Earlier, MIT’s Department of Electrical Engineering and Computer Science had come out with chips that could power itself of heat, light or vibrations. However, such chips simply switched among the multiple energy sources, taking advantage of whichever one is generating the most energy at a given point. But a new revolutionary energy-combining circuit design enables the new chip to draw energy from three different sources simultaneously and continuously.
Highlights of Energy Harvesting & Storage Europe 2012 (Part One) - Energy Harvesting Journal
The construction and application of a molecular wire piezoelectric urease-producing bacteria sensor - Analytical Methods
Elektronik Energy Harvesting Congress - Avnet Abacus – Energy harvesting applications to show at inaugural congress | Electropages
Rutgers MAE Senior Design 2012 Piezoelectric Energy Harvesting Device
Nanogenerators Easier and Cheaper to Produce than Ever Before
Piezoelectric Transducers Unlock New Doors | APC International Ltd.
IDT 4M piezoelectric MEMS oscillators
Piezoelectric Energy Harvesting 2012-2022: Forecasts, Technologies, Players: IDTechEx
Take leisurely stroll‚ charge your cellphone
A virus that creates electricity
Viruses convert movement into electricity - 5/17/2012
Virus Makes Producing Power A Walk In The Park
Energy Harvesting Enabled Device Shipments Will Quadruple by 2015, Forecasts Pike Research
Surface/interface effect around a piezoelectric nano-particle in a polymer matrix under compressional waves | Browse - Applied Physics Letters
The Green Advantage - New Technology Harvests Lost Energy - US Business News
Characterization of a rotary piezoelectric energy harvester based on plucking excitation for knee-joint wearable applications - Abstract - Smart Materials and Structures
Piezoelectric transducer for an audio-prosthesis implantable in the middle ear
Advances in Piezoelectric Transducers
FUTUREWATCH: Will Piezoelectric Energy Replace Batteries? | Solar Feeds
Piezoelectric energy can potentially replace batteries in future
Piezo PowerTech wins Michigan Clean Energy Venture Challenge
Piezoelectric Shoes – The Design Technology Blog
How to Generate Electricity from Kinetic Energy
Oil price rises as EU bans Iranian oil imports | World | Deutsche Welle | 23.01
The Future of Piezoelectric Generators | Solar Feeds
Modeling and Simulation of Piezoelectric Energy Harvester Archive
Can piezoelectric generators power your home in the near future?
Can piezoelectric generators power your home in the near future? | Eco News Bits
IMEC reports record power for micromachined piezoelectric energy harvester"
A hybrid photovoltaic-piezoelectric device - Printed Electronics World
Breakthrough Medical Gadgets: The Future of Healthcare Hardware | Gadget Lab
Non-Polar Block Copolymer with Piezoelectric Properties | Decoded Science
One Per Cent: Apple files patent for a tie-clip iPhone loudspeaker
What’s next: Piezoelectric devices to harvest human and machine motion for clean energy
PIEZOELECTRIC CAR IEEE Mechanical Project Idea | 1000 Projects
Inertial Flow Phenomenon Analysis on Piezoelectric Pump
Piezoelectric Articles - Laser Focus World
University of Minnesota Digital Conservancy: Development of a piezoelectric weigh-in-motion system for battery-less wireless operation.
A four-state magnetoelectric coupling for embedded piezoelectric/magnetic composites | Browse Journal - Journal of Applied Physics
Theory of piezoelectric materials and their applications in civil engineering
WINDSTALK | Atelier DNA
Wind Power Without the Blades: Big Pics
Scientists Use Zinc Oxide Nanowires to Enhance Performance of LEDs
California studies how to convert road vibrations from cars to usable energy
MIT piezoelectric energy harvesting - Topic - Digital Journal
ORNL discovers amazing electrical properties in polymers
Thought of Piezoelectric Result Spelled out | velecaventure.com
[1109.4911] Neutron Production from the Fracture of Piezoelectric Rocks
Maserati Fractal By Liviu Tudoran
Maserati Fractal Concept 'shape shifting' futuristic automobile with an electric attribute