| 单词 | piezoelectric |
| 例句 | Enough to light up the stage, as was proved in “Green is the New Black,” a dance-theater piece that merged the art of stepping with piezoelectric technology. Step Afrika’s ‘Green is the New Black’ lights up the stage The dance steps produce an electrical charge, which is harvested by the piezoelectric surface, and presto-bingo, it’s converted into power that fires the lights above the stage. Step Afrika’s ‘Green is the New Black’ lights up the stage "Our design reduces the vibration of sound each time it reflects from the piezoelectric material and reduces the overall sound intensity of the enclosed space." Putting sound waves to work to create safer public spaces 2023-11-14T05:00:00Z The zinc oxide material was chosen for its piezoelectric properties, which means that when it waves, bends, or deforms under motion, it generates electric potential. Harnessing molecular power: Electricity generation on the nanoscale 2023-10-17T04:00:00Z So they created one out of silicon carbide, which supports the robots’ structure; electrodes made of copper and gold, which carry current; and piezoelectric ceramics, which change shape in response to an electric field. New 3-D printing technique can make autonomous robots in a single step 2022-07-08T04:00:00Z This penlike device used a BBQ lighter’s piezoelectric crystal, which generates a pulse of electricity when pressure is applied to it. This Cheap Device Could Expand the World’s Access to Vaccines 2021-11-16T05:00:00Z At the heart of its tech is something called the piezoelectric effect. The headphones that even a DJ can't break? 2020-08-10T04:00:00Z "The piezoelectric material we used is a form of quartz, which is nothing more than a mineral composed of silica," Prasad said. Putting sound waves to work to create safer public spaces 2023-11-14T05:00:00Z The electronics include piezoelectric devices, which change shape in response to electricity and produce an electrical output in response to mechanical pressure. Softsonics: a device to take way to blood-pressure readings continuously 2020-06-29T04:00:00Z They’re also essential for photoacoustic imaging, which uses a piezoelectric device called a transducer to detect the ultrasound waves soft tissues emit as they absorb light from a laser. Transparent, power-producing crystals could lead to invisible robots, self-powered touch screens 2020-01-15T05:00:00Z Poled ferroelectrics show a large electromechanical response to an external electric field or to mechanical force, and this response is typically characterized by a quantity dubbed the piezoelectric co--efficient. Transparent crystals with ultrahigh piezoelectricity 2020-01-14T05:00:00Z Some piezoelectric materials also exhibit spontaneous polarization that changes in magnitude with increasing temperature. Temperature-dependent polarization in a non-polar crystal 2019-11-17T05:00:00Z First, the nanostructure is fabricated from lithium niobate, which is strongly piezoelectric — it produces a large voltage in response to mechanical deformation. Counting grains of sound 2019-07-23T04:00:00Z It is battery-powered and contains microchips rather than piezoelectric crystals, so it usually won’t break if dropped. In African Villages, These Phones Become Ultrasound Scanners 2019-04-15T04:00:00Z The company also got rid of the earpiece, instead utilizing a piezoelectric speaker behind the screen to create sound with vibrations from the phone’s frame. LG G8 ThinQ review: many gimmicks, not enough progress 2019-04-09T04:00:00Z The headlining product is the Sonic One TV, a “self-contained” TV with a piezoelectric speaker that allows sound to be delivered from the panel to viewers sitting nearby. Hisense announces Sonic One TV alongside its new 2019 4K TV lineup 2019-01-07T05:00:00Z This is interesting, because it implies that the pyroelectricity does not simply arise from thermal expansion of the piezoelectric surface5, but from a true phase transition confined to the surface. Temperature-dependent polarization in a non-polar crystal 2019-11-17T05:00:00Z They partly overcame the second hurdle by doing away with conventional motors and driving the wings using a piezoelectric ceramic that flexes in response to electrical currents. The world’s lightest wireless flying machine lifts off 2018-05-15T04:00:00Z Quartz, a piezoelectric material, can turn changes in frequency into electronic signals in a similar way to Gießibl’s modified cantilever. How atomic imaging is being pushed to its limit 2018-03-19T04:00:00Z Instead of the usual electric motors, its motion is powered by piezoelectric actuators. This tiny robot moves so fast on camera it’s just a blur 2018-01-19T05:00:00Z Hall’s design used a tiny piezoelectric accelerometer to measure movement in the speaker cone and adjust the frequency of the signal to eliminate distortion. The billion dollar widget steering the driverless car industry 2017-10-18T04:00:00Z That piezomagnetic material is then attached to a piezoelectric material, which converts the vibrations to an oscillating electrical voltage. Mini-antennas could power brain-computer interfaces, medical devices 2017-08-22T04:00:00Z One is piezoelectric energy, which is generated when you apply pressure to certain materials. Your body is a big battery and scientists want to power gadgets with it 2017-07-05T04:00:00Z Piezoelectricity is not new technology - one of the most common applications is electric cigarette lighters which use piezoelectric crystals to create a flame. Future Energy: LA crystals turn cars into energy source - BBC News 2017-06-28T04:00:00Z The sensors rely on the piezoelectric qualities of quartz — it generates an electrical charge when squeezed. The fight to save thousands of lives with sea-floor sensors 2017-06-20T04:00:00Z The piezoelectric actuator on the output coupler is used to lock the cavity to the laser frequency. Observation of the 1S–2S transition in trapped antihydrogen : Nature : Nature Research 2016-12-18T05:00:00Z The sensors consist of components called piezoelectric crystals that convert ultrasound waves into electricity that powers tiny transistors in contact with nerve cells in the body. Tiny 'fitbits' to keep tabs on the body from within 2016-09-06T04:00:00Z But they usually employ the piezoelectric effect, whereby an alternating electric current causes them to vibrate if transmitters or, if receivers, to generate an electric current in response to vibration. Acoustic chatter 2015-07-09T04:00:00Z Four entrepreneurs in Gaza have an idea born of out desperation: A piezoelectric device that charges your mobile phone while you walk. Aided by Google and Skoll, West Bank and Gaza Turn Out Some of World's Toughest Entrepreneurs 2015-04-30T04:00:00Z Lithium niobate is piezoelectric—meaning that when a voltage is applied to it, it contracts or expands, becoming more or less dense as it does so. Light at the end of a tunnel 2015-02-12T05:00:00Z The piezoelectric actuator on the output coupler is used to lock the cavity to the laser frequency. Observation of the 1S–2S transition in trapped antihydrogen : Nature : Nature Research 2016-12-18T05:00:00Z Harnessing vibrations from the air using piezoelectric transducers, which would convert that mechanical energy into electricity, seemed like a better idea. Wireless Gadget Recharging with Sound Waves 2014-11-25T05:00:00Z Meredith had the idea after discovering a device called a piezoelectric transducer, which converts physical vibration or physical impact into electricity. Power is Coming 2014-10-27T04:00:00Z By making a strap from commercially available piezoelectric material, then attaching it to earmuffs and fitting it snugly around Dr Delnavaz's chin, the researchers built a prototype. Chin strap turns chewing into power 2014-09-16T04:00:00Z “As compared with the conventional piezoelectric hydrophone, this fiber-optic hydrophone boasts of a sensitivity two to three orders of magnitude higher, and is able to detect extremely weak signals,” the report said. Inside the Ring: Terrorist tanker training? 2014-09-03T04:00:00Z This time around, there's no solar component, just what's known as piezoelectric energy generation. You can charge a phone battery by playing music at it 2014-08-19T04:00:00Z If getting an NFC implant can somehow put me closer to piezoelectric energy harvesting or instant medical diagnosis, so much the better. Cyborg conversion incomplete: my life with finger implants 2014-07-31T04:00:00Z To mimic the fly’s hearing in the same way, the researchers created a miniature pressure-sensitive teeter-totter in silicon using piezoelectric materials. Biomimicry Continues to Evolve: Fly Inspires Tiny Microphone 2014-07-30T04:00:00Z I am an engineer with experience in these types of technologies; Apple is not using a piezoelectric but some kind of dielectric EAP. Electroactive Lens May Bring SLR Type Camera Features To iPhone 2014-06-24T04:00:00Z The machines exploit the piezoelectric effect of some crystals, whereby they expand when a voltage is applied, moving a lever that then pushes plastic pins through a series of holes. The missing budget Braille e-reader 2014-05-08T23:08:39Z A nifty bit of physics called the piezoelectric effect, by which certain materials generate an electric current when stressed, offers a way around that. High-tech shipping containers: Boxing clever 2014-02-27T16:07:00Z If dragon teeth had piezoelectric properties—where mechanical stress produces small jolts of electricity—a combination of methane exhalation and teeth grinding could light the fire. Smaug Breathes Fire Like A Bloated Bombardier Beetle With Flinted Teeth 2014-01-02T16:45:13.144Z The ambient energy stored in such resources undergoes a "transduction" process using photovoltaic, thermoelectric, piezoelectric or electrodynamic processes, allowing the energy to be turned into moving electrons and consumed. Ambient Energy Could Replace Batteries 2013-10-10T19:46:04.603Z By contrast, piezoelectric devices don't require maintenance, or other human intervention, because they typically get their power from vibrations in the natural environment. Lighting the office - just by walking 2013-07-15T23:16:57Z Its two wings are powered separately by tiny pieces of ceramic piezoelectric material, which expand and contract rapidly when wired to an alternating voltage. Robotic fly takes off at Harvard 2013-05-03T14:46:26Z These are made from layers of a piezoelectric material—one that deforms when an electric current is applied to it. Miniature flying robots: Robodiptera 2013-05-01T16:48:40Z The researchers solve the problem by relying on so-called artificial muscles… …piezoelectric materials that contract when a voltage is applied. Robot Bees Learn to Fly [video] 2013-05-02T21:15:07.887Z The devices developed by the Georgia Tech researchers rely on a different physical phenomenon - tiny polarization charges when so-called "piezoelectric" materials such as zinc oxide are moved or placed under strain. 'Smart skin' hope for touch sensor 2013-04-26T07:35:12Z GE's "dual piezoelectric cooling jets" prototype Such a device exists and is tentatively called a “dual piezoelectric cooling jet.” GE's Jet Engine Technology May Cool Your Next iPad Or Ultrabook 2012-12-12T18:25:37Z Scientists are also using piezoelectric devices to potentially generate power from the bounce of a rucksack on a soldier's back as they run. Can human power replace batteries? 2012-09-05T04:45:56Z The researchers stacked sheets of viruses on top of one another to amplify the piezoelectric effect. Bacteria-Eating Viruses May Power Cell Phones 2012-08-11T14:45:07.500Z The sensors are made of a piezoelectric material that generates a tiny charge when it is stressed or distorted. Wired-up brolly plays drop music 2012-06-30T00:40:09Z Researchers in the United Kingdom also recently developed a piezoelectric generator, a knee brace that scrounges electrons from walking. Scientists Harness Human Power for Electricity 2012-06-26T17:45:00.187Z This piezoelectric method for producing power by converting mechanical force or motion to electricity is already widely used in cars and a number of manufacturing processes. Green Blog: A Virus That Helps Charge Your Cellphone 2012-06-06T12:11:05Z They found that a stack about 20 layers thick exhibited the strongest piezoelectric effect. Viruses used to power tiny device 2012-05-15T14:33:36Z Most cell-phone microphones are piezoelectric and convert the energy from sound waves into electrical output that is transmitted and translated back into sound waves in the recipient's phone. Bacteria-Eating Viruses May Power Cell Phones 2012-08-11T14:45:07.500Z He also knew that DNA and certain proteins—the building blocks of the phages—are piezoelectric. Electronics Go Viral 2012-05-14T21:32:44Z And because bone retains its piezoelectric properties even when it's no longer living, it should be fairly straightforward to transform any old bone into the world's most outre audio component. Bone-Rattling Sound: New Speakers Made from Cow Femur 2011-12-28T00:15:00.433Z The research team is also experimenting with interconnecting the piezoelectric micro generators to increase the electrical output and potentially power bigger things. Green Blog: A Virus That Helps Charge Your Cellphone 2012-06-06T12:11:05Z Using fluids to generate power, Heikenfeld says, offers more flexibility in design than piezoelectric crystals do, an advantage he says Krupenkin will need as he seeks to create a marketable product. Tom Krupenkin's Power Shoes 2011-12-01T22:15:36Z The researchers created two piezoelectric energy harvesters, one attached to each wing. Powering a Cyborg Beetle Without Batteries 2011-09-06T16:01:05Z The Berkeley team layered several of these viral films atop one another to enhance the piezoelectric effect and then capped the stack with a second electrode. Electronics Go Viral 2012-05-14T21:32:44Z What's more, some scientists hypothesize that the piezoelectric properties of bone are an essential part of the body's internal signaling mechanisms. Bone-Rattling Sound: New Speakers Made from Cow Femur 2011-12-28T00:15:00.433Z They genetically modified the M13 to enhance its piezoelectric properties, then created a thin film of the material about the size of a postage stamp. Green Blog: A Virus That Helps Charge Your Cellphone 2012-06-06T12:11:05Z Transducers are made from arrays of tiny piezoelectric structures that convert electrical signals into ultrasound waves by vibrating at an appropriate frequency. Three-dimensional printing: An image of the future 2011-05-19T11:03:06Z The new work by the ILL team has added what is known as a piezoelectric resonator to the bottom plate; its purpose is to jiggle the bottom plate at a very particular frequency. Gravity probed at quantum level 2011-04-18T03:42:14Z So he and his colleagues went looking for piezoelectric phages. Electronics Go Viral 2012-05-14T21:32:44Z Basically, when a piezoelectric material is bent, compressed, or otherwise physically stressed, it generates an electric charge. Bone-Rattling Sound: New Speakers Made from Cow Femur 2011-12-28T00:15:00.433Z One of the key technologies making gasoline direct injection possible is new piezoelectric fuel injectors. How gasoline direct-injection engines work 2010-10-26T18:07:00Z This occurs because these so-called piezoelectric materials -- which are as diverse as quartz crystals, leaded ceramics and bone -- contain pockets of positive and negative charge. A bounteous source of power may lie right beneath our feet 2010-04-27T04:00:00Z They used a tiny piece of what is known as a piezoelectric material, which expands and contracts when an electrical current is run through it. Limits of quantum world stretched 2010-03-17T19:16:00Z They added glutamates to the negatively charged end of the protein to increase its negative charge and thus its piezoelectric properties. Electronics Go Viral 2012-05-14T21:32:44Z The split-second stiffening occurs as piezoelectric fibers work with a computer chip embedded in the ski. The Olympics of Engineering 2010-02-27T02:20:00Z The new generator produces far less power than conventional piezoelectric devices. Electronics Go Viral 2012-05-14T21:32:44Z Engineers are also weaving piezoelectric fibers into clothing and other textiles. A bounteous source of power may lie right beneath our feet 2010-04-27T04:00:00Z Some are experimenting with microscopic piezoelectric wires of zinc oxide. A bounteous source of power may lie right beneath our feet 2010-04-27T04:00:00Z |
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