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- Aug 29, 2019

A Battery-Free Sensor For Underwater Exploration

Pollyanna Sidell - Associated Environmental Systems

MIT-Battery-TestingA battery-free underwater “piezoelectric” sensor invented by MIT researchers transmits data by absorbing or reflecting sound waves back to a receiver, where a reflected wave decodes a 1 bit and an absorbed wave decodes a 0 bit — and simultaneously stores energy. Image courtesy of the researchers Full Screen A battery-free sensor for underwater exploration Submerged system uses the vibration of “piezoelectric” materials to generate power and send and receive data.

View the original article at MIT News

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