Magic sensor

Magic sensor

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Caption: Magic sensor. Dr Gerd Scholl behind a tyre fitted with an autonomous sensor (yellow). This long- lived sensor is powered solely by the changes in pressure it measures, requiring no battery. It is only active when there is a change to measure. Voltage is generated in its piezoelectric materials by changes in pressure. The voltage is converted into a radio signal transmitted by an antenna. This data can be picked up by a receiver up to 20 metres away. Scholl is one of the team from Siemens, Germany, that developed the sensor. This sensor is being co-developed with Continental to check tyre pressure while driving.

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Keywords: autonomous, battery-free, change, continental, electrical engineering, electronic, electronics, gerd, germany, male, man, munchen-perlach, munich-perlach, physicist, physics, piezoelectric, radio, researcher, scholl, scientist, sensor, siemens, technician, technology, tyre pressure

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