MIT develops a sensor that can work without a battery – TechCrunch



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MIT researchers have created a new underwater sensor and communication system that does not require batteries, and barely uses any power at all. This could help set up an underwater 'internet of things' according to MIT, which would allow for real-time sea temperature and marine life monitoring, and to make it work. Without that requirement, it would be possible to set up networks of remote sensors in the seas of distant planets.

MIT researchers use a sensor that sends them underwater, which then hits sensors with embedded receivers, transmitting a tiny amount of energy in the process. The sensor then is used to answer the question of whether or not it is necessary to communicate with one another. The only energy required for this is the power stored in the sound wave by the transmitter.

Fadel Adib, an assistant professor in the MIT Media Lab and one of the researchers who worked on the nature research project "Blue Planet" and thought about how much of the Earth's oceans are left unstudied, and also about how to solve the problem. result in a lot of excess pollution.

Essentially, the system works but permitting piezoelectric resonators, which have been used in the field of microscopy for well over 100 years, to be deformed in response to a sound wave, or retain their shape and reflect, based on the information contained in any kind of sensor you might want to pair with the piezoelectric material. That sends back the binary signal, which can then be collected and interpreted.

Next up for the research team is to show that it is working at a distance, and in concert with other sensors for simultaneous transmission. Eventually, it might be possible to transmit sound and even low-res images, which would be a huge development in terms of establishing remote monitoring stations – especially as we pursue more science and research on our own.

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