Vibrating Micro Plates Bring Order to Overcrowded Radio Spectrum. The two square rectangles in the center of this SEM picture are the two resonatorsGSM, WiFi, Bluetooth, 4G, GPS: a smartphone already has to handle many wireless standards.
And this number will only increase further. There are still no good filters to keep all those future standards separate. Researchers at the MESA+ Institute for Nanotechnology have taken an important step with a new type of filter, based on micromechanics. They have published their finding in Applied Physics Letters. Filters that can be accurately tuned to the frequency band you want to receive as a user are becoming increasingly important.
One of the reasons for choosing a mechanical solution is that the conventional filter consists of an inductor and a capacitor, an ‘LC circuit’. Vibration The solution presented by the researchers consists of two mechanical resonators. For more information visit www.utwente.nl/en. Piezoelectric Actuators for Functionally Graded Plates- Nonlinear Vibration Analysis. 1.
Introduction Functionally graded materials (FGMs) are a new generation of composite materials wherein the material properties vary continuously to yield a predetermined composition profile. These materials have been introduced to benefit from the ideal performance of its constituents, e.g., high heat/corrosion resistance of ceramics on one side, and large mechanical strength and toughness of metals on the other side. FGMs have no interfaces and are hence advantageous over conventional laminated composites.
FGMs also permit tailoring of material composition to optimize a desired characteristic such as minimizing the maximum deflection for a given load and boundary conditions, or maximizing the first frequency of free vibration, or minimizing the maximum principal tensile stress. The concept of developing smart structures has been extensively used for active control of flexible structures during the past decade [1-3]. Figure 1. Mr. Basic PCB with motor controller. Rotary Ultrasonic Piezo Motors.
SMF Swordfish Piezoelectric Gun Lighter Disassembly, Repair, and Internals « Gengar's DevBlog. By Gengar003 The "SMF Swordfish" is a piezoelectric, butane-powered, antique-styled gun lighter. Mine broke recently, so I had to take it apart to diagnose the problem and fix it. For an item so cheap and "made in China," it's remarkably modular, serviceable, and well-engineered. Here's how to disassemble it, and how all the internal parts work. First, remove the screw on the muzzle. If you want, you can also remove the side wheels. Next, remove the two screws from the side of the lighter. Next, the ivory-colored grip plates come off. Once the grip plates have been removed, gently pry the two metal halves of the lighter apart. Finally, an exploded view of the internals, and some details about what they do and how they go together:
High performance PZT ribbon-based piezoelectric nanogenerator using graphene transparent electrodes - Energy & Environmental Science. Piezoelectric Viruses Electricity. Figures index : Piezoelectric devices: Squeezed virus produces electricity : Nature Nanotechnology. Nano to Macro – Piezoelectrics Have Power. Two far-flung enterprises are using piezoelectric devices to generate answers to widely disparate questions.
The first set of questions is intensely personal. “Can a heart implanted micro robot operate permanently? “Can cell phones and tiny robots implanted in the heart operate permanently without having their batteries charged? These provocative questions highlight a web page from KAIST, the Korea Advanced Institute of Science and Technology, which focuses on the Institute’s work with piezoelectric devices.
Such devices can tranform vibrations, pressure, and other mechanical forces into an electric current. Dr. Maria Hepel Named First Distinguished Professor at SUNY Potsdam. Related Media Dr.
Maria Hepel has been named the first SUNY Distinguished Professor at SUNY Potsdam. Dr. Maria Hepel works in her lab at SUNY Potsdam. Dr. IDTechEx Recognizes Innovation at Energy Harvesting + Storage and Wireless Sensor Networks + RTLS awards. By Kalwinder Kaur The awards were judged by Peter Fuhr from the Oak Ridge National Laboratory and Henrik Zessin from the Fraunhofer IIS.
The ceremony was held for the fourth time in Europe. The award for Best Application of Energy Harvesting was given to Precision Motors Deutsche Minebea in Germany for developing an application prototype that avoided changing of batteries. G24 Innovations in Wales, UK won the award for Best Technical Development of Energy Harvesting. The company has developed and commercialized its technology to integrate dye sensitized cells into various applications including rolling blinds powered autonomously and wireless keyboards. Libelium in Spain was honored with the award for Best Application of Wireless Sensor Networks. Piezo Screencast Audio Recording App Review. Posted 04/12/2012 at 9:55am | by Craig Grannell Using QuickTime Player, you can record audio from a connected device, such as a microphone, but not from an application.
Workarounds for app recording exist, but they are typically pricey and complex. PiezoTech : The piezoelectric polymer and film leader. UC Berkeley Events Calendar: Micro-scale Piezoelectric Vibration Energy Harvesting: from Fixed-frequency to Adaptable-frequency Devices. Apple shows continued interest in haptic touchscreen fingertip feedback. By Neil Hughes Future iPhones and iPads from Apple could feature advanced technology that would allow users to not only touch the screen, but also feel textures and other feedback on their fingertips.
Apple has shown interest over the years in making touchscreens more immersive and responsive to users with haptic feedback. In March, it was even suggested that Apple had been in contact with a company called Senseg, which sells technology that uses electric fields to simulate complex, context-sensitive textures on a touchscreen device. A newly published patent application from Apple, and discovered by AppleInsider, aims to offer the same ability to make a touchscreen feel smooth, rough or otherwise, but through different methods. The proposed invention, entitled "Methods and Systems for Providing Haptic Control," features a tiered haptic system that would be formed by stacking haptic elements.
The latest proposed haptic feedback invention from Apple, published this week by the U.S. Apple Mulls Over Haptic Touch Displays in Future Devices; Patent Filing Reveals. If Samsung’s favorite pastime is to file new trademark and brand name applications with the authorities, rival Apple is crazy about filing patent applications.
Looks like there is no dearth of new ideas with Apple’s intellectual pool, going by the rate at which the iGiant is filing patent applications. The latest one in the series of patent filings by Apple shows the possibility of the company using haptic technology on iOS touch devices. Haptic technology is special since it makes the present touch experience on touch screen devices different, with its ability to make users feel buttons on a touch screen. The technology makes it possible by providing local feedback to the user when he or she touches on a touch surface. Apple filed a patent application in late March which showed that the company plans to use piezoelectric actuators with the touch displays to provide the touch feel. Analyzing energy potential. Sensors, radio transmitters and GPS modules all feature low power consumption.
All it takes is a few milliwatts to run them. Energy from the environment - from sources such as light or vibrations - may be enough to meet these requirements. A new measurement device can determine whether or not the energy potential is high enough. The freight train races through the landscape at high speed, the train cars clattering along the tracks. The cars are rudely shaken, back and forth. Enhanced dielectric and piezoelectric properties of xBaZrO3-(1−x)BaTiO3 ceramics. Daylight Solutions Introduces a New Mode Hop-Free Laser Product Line with Enhanced Stability & Functionality for Spectroscopy in the Mid-IR.
Wireless Sensor Networks 2012-2022. Science: Brain-Scanning Bot Maps Minds at Warp Speed. Scientists at MIT and Georgia tech have come up with a method for quickly scanning living brains.
The technology could be further developed and combined with other techniques for gaining new insights on a patient's brain. "For example, such a study could be used to discover the cellular processes underlying diseases" like epilepsy, narcolepsy or Alzheimer's, said researcher Craig Forest. Webinar: The New PCI 3.0 Standard Learn the steps to take to get your company ready for PCI DSS 3.0 changes coming January 2015.
We cover all of the details you need to know as we head to the deadline to complete and pass your PCI DSS 3.0 audit. View the PCI Webinar Series Now. Researchers at the Massachusetts Institute of Technology (MIT) and Georgia Tech have automated the process of finding and recording information from cells in living brains, as reported in the May 6 issue of Nature Methods. Graphic courtesy of the Boyden Lab The Story Behind the Idea. VIDEO: Power generation from piezoelectric nanocomposite materials. World’s first piezoelectric MEMS oscillators operate up to 625MHz ±50 ppm. May 10, 2012 // Julien Happich Integrated Device Technology has announced what the company claims to be the world's first crystal free piezoelectric MEMS (pMEMS) LVDS / LVPECL oscillators for high-performance communications, consumer, cloud, and industrial applications.
The new oscillators operate with substantially less than one picosecond of phase jitter in compact industry-standard packaging, making them an ideal replacement for traditional six-pin crystal oscillators (XOs). The IDT 4M series high-performance LVDS / LVPECL oscillators leverage IDT’s patented CrystalFree pMEMS resonator technology, enabling IDT to rapidly factory-program the desired output frequency without the need to fine-tune expensive crystals. In addition, because the nominal resonator frequency of pMEMS is much higher than quartz crystal, 4M oscillators are able to achieve higher frequencies at lower cost without sacrificing critical performance.
Electric virus powers liquid crystal display in piezoelectric breakthrough. Piezoelectric Viruses Engineered viruses convert an applied force into electricity in a new piezoelectric device, the first to use a biological material. Courtesy of Seung-Wuk Lee/Lawrence Berkeley National Laboratory Piezoelectric devices promise to draw power from your footsteps or heartbeat, change the channel on your TV, and complete all sorts of helpful tasks - but they generally work in the nano-mechanical realm, requiring synthetic materials to function. Now for the first time, scientists have built a piezoelectric device using biological materials - in this case, viruses. Virus-based piezoelectric energy generation (Movie s1) Virotronics: Rise of the clones - Views. Updated: Thu, May 17 2012. 08 32 PM IST Watch a cigarette lighter spark into flame. You are witnessing the piezoelectric effect, the ability of certain materials to produce electricity when squeezed, rubbed, bashed together or, in scientific terms, under mechanical stress.
Harvesting energy from natural processes, such as heat and vibration, is not new (think windmills). But ever since 1880, when French physicist brothers Pierre and Jacques Curie discovered the piezoelectric effect, others found a variety of materials that could generate small amounts of electricity when stressed. It’s a strange mix, including silk, wood, certain crystals (even common sugar) bone and DNA, the building block of life. Samar Halarnkar. Giant piezoelectric resistance effect of nanoscale zinc oxide tunnel junctions: first principles simulations - Physical Chemistry Chemical Physics.
GreenWaves III debuts Piezo-Electric technology - Variety. Published: Friday, April 13, 2012 Updated: Friday, April 13, 2012 17:04 Wednesday night UCF’s Campus Activities Board and Environmental Coalition teamed up to bring the first interactive show to the arena, in the form of an electronic dance concert called GreenWaves III. As UCF’s first large-scale electronic festival, Greenwaves III brought forth some of the hottest musical acts including KillaGraham, Blau, DEV and Alesso, whose performances got the crowd pumped and excited. “GreenWaves III has the potential to give the University of Central Florida the national, and possibly international, news coverage that it deserves,” said Julian Belilty, sustainability specialist of the Environmental Coalition.
Efficient future gadgets could be driven by piezoelectric graphene. Apple Looking to deliver a little More Buzz to iOS Devices. Apple files for iPhone/iPad haptic feedback system patent. Already explores manufacturing options. Ever since Apple released their first iPhone, we’ve been waiting for them to figure out how to add haptic feedback to the multi-touch interface. Environment and Energy - Less is more in piezoelectric energy harvesting. A Hybrid Piezoelectric Structure for Wearable Nanogenerators - Lee - 2012 - Advanced Materials.
/CIS/Profile. An English SME has developed high temperature, high performance and lead free piezoelectric ceramic materials for integration into extreme environment applications where the demands cannot be met by conventional piezoelectric, magnetic, hydraulic and pneumatic systems. PIEZOELECTRIC SHOE GENERATOR. E Ink thinks its displays belong on pretty much everything. E Ink has been on a bit of a run lately, what with the whole e-book explosion. And it's easy to see why: E Ink offers inexpensive, ultra low power displays that are easy to read in direct sunlight. Advanced Piezoelectrics: Materials, Devices, and Their Applications.
Coaxing graphene to be piezoelectric. Energy harvesting powers up commercialization in 2012. January 16, 2012 — The analysts at IDTechEx look at the year past (2011) and the year ahead (2012) for energy harvesting devices. 2011 held multiple scientific advances, technology breakthroughs, and new product developments in the energy harvesting field. This will continue in 2012, IDTechEx predicts, along with a stronger push for commercialization. Piezoelectric Road Produces Electricity From Traffic. Six Sidewalks That Work While You Walk.
Piezoelectric harvester generates clean electricity directly from wheat farming. Piezoelectric. PiezoElectric Auto Body Material. What's Next: Eco friendly textiles designed to generate renewable energy. Local piezoelectric response of ZnO nanoparticles embedded in a photosensitive polymer - Prashanthi - 2011 - physica status solidi (RRL) - Rapid Research Letters. Energy Scavenging with Piezoelectric Transducers. Stephen Evanczuk writes: Micro-harvesting, or energy scavenging, relies on extracting power from minute but pervasive sources of ambient energy such as light, heat, RF, or vibration. New Japanese Button Battery Generates Power From Vibrations.
Piezo Disk Vibration Sensor. Green Winners And Losers 2011 - Six Industries In The Spotlight. Futuristic KTM Quake concept gets power from piezoelectricity. Piezoelectric effect. Piezoelectric generator creates power from shoes. Rochelle Salt. Two Apple patent for solar cells and piezoelectric sensors. Switching to wireless level detection.
Dr Tony Mulholland. Your FeedBlitz Updates. Machines that let you observe and manipulate a single biological molecule. Murata Leaf Grip remote twists and bends to change channels – New Tech Gadgets & Electronic Devices. Energy Harvesting: Not just PZT and Solar. Hybrid film and fibers capture energy from the elements. Recent advances in power generation through piezoelectric nanogenerators - Journal of Materials Chemistry.
Everybody’s a winner. Vision-based tool gets a grip on pitching technique. Piezoelectric roads. The global technology revolution ... - Richard S. Silberglitt. Electricity from the nose? Embedded Technology - Multifunctional Vehicle Structural Health Monitoring with Piezoelectric Wafer Active Sensors. Kyocera's Demos Tactile Feedback Touchscreen Buttons at CEATEC [VIDEO] Electricity from the nose: Engineers make power from human respiration. Sensor Pinpoints Location of Impacts Using Piezoelectric Polymer Film. Engineering On The Edge. Researchers Harness Electricity From Human Respiration. 107, 187601 (2011): Real-Time Direct Observations of Polarization Reversal in a Piezoelectric Crystal: Pb(Mg_{1/3}Nb_{2/3})O_{3}-PbTiO_{3} Studied via In Situ Electrical Biasing Transmission Electron Microscopy.
PIEZOELECTRIC POWER APPARATUS - Lee, Hsien-hua. Analysis and modeling of a piezoelectric energy harvester stimulated by β-emitting radioisotopes. Smartbuy / Automobiles : Range Rover Evoque review. Video: This Bendable Remote Control Has No Buttons, Doesn’t Require Batteries. Piezoelectric Ceramics. 50W/60W/100W/120W Piezoelectric vibration transducer,50W/60W/100W/120W Piezoelectric vibration transducer_Company News_UCE ultrasonic co.,Ltd. Two Apple Patent For Solar Cells And Piezoelectric Sensors. TRAVELLING WAVE THERMOACOUSTIC PIEZOELECTRIC REFRIGERATOR - KING ABDUL AZIZ CITY FOR SCIENCE AND TECHNOLOGY. Piezoelectric Generator. Optics Letters - Mode-shape measurement of piezoelectric plate using temporal speckle pattern interferometry and temporal standard deviation. Paper: Acousto-Diffusive Waves in a Piezoelectric-Semiconductor-Piezoelectric Sandwich Structure.
Composition dependence of local piezoelectric nonlinearity in (0.3)Pb(Ni0.33Nb0. Researchers Use Piezoelectric Materials to Enhance Performance of LEDs. Students can now be E.Co friendly - News. Piezoelectric film used for new remote that twists and bends. Piezoelectric Public Works Possibilities « California's Capitol. April 2011. What's next in piezoelectric generators. Piezoelectric Public Works Possibilities. Scientists Achieve Movement of Quantum Dots through Sound Waves. Piezo Shower Heats Water Without Electricity.