Tech Xplore - piezoelectric

A new flexible piezoelectric composite for 3-D printing

Researchers at Peking University, Southern University of Science and Technology and the University of Jinan in China have recently designed a ceramic-polymer composite that can be used to print complex 3-D grid architectures. ...

Apr 28, 2020 feature

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A framework to estimate and control leg trajectories of a quadrupedal microrobot

A team of researchers at Harvard University and Wyss Institute for Biologically Inspired Engineering has recently developed a computationally efficient framework for the estimation and control of leg trajectories on a quadrupedal ...

Feb 5, 2019 feature

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Non-reciprocal acoustoelectric amplifiers for very high frequency sound waves

In recent years, teams of engineers worldwide have been trying to develop acoustic devices based on piezoelectrics (i.e., materials that can produce electricity when mechanical stress is applied to them) integrated with conventional ...

Feb 27, 2023 feature

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Researchers develop a paper-thin loudspeaker

MIT engineers have developed a paper-thin loudspeaker that can turn any surface into an active audio source.

Apr 26, 2022

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Researchers squeeze low-cost electricity from sustainable biomaterial

Mobile phone speakers and motion detectors in cars and video games may soon be powered by electricity generated from low cost and sustainable biomaterials, according to research carried out at University of Limerick (UL), ...

Dec 4, 2017

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Why you don't want 'phantom energy' on a spacecraft

You may not have heard of piezoelectric materials, but odds are, you have benefitted from them.

May 8, 2023

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A precision arm for miniature robots

Until now, microscopic robotic systems have had to make do without arms. Now, researchers at ETH Zurich have developed an ultrasonically actuated glass needle that can be attached to a robotic arm. This lets them pump and ...

Jan 13, 2023

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Engineers fabricate a chip-free, wireless, electronic 'skin'

Wearable sensors are ubiquitous thanks to wireless technology that enables a person's glucose concentrations, blood pressure, heart rate, and activity levels to be transmitted seamlessly from sensor to smartphone for further ...

Aug 18, 2022

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New wind sensor uses smart materials to improve drone performance

Engineers have designed and successfully tested a more efficient wind sensor for use on drones, balloons and other autonomous aircraft.

Aug 8, 2022

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Tiny devices pave way for self-charging smart tech

Self-charging smartwatches and health trackers could be a step closer following the development of tiny mechanical devices powered by movement, a study suggests.