TU/e announced world’s tiniest temperature sensor

Researchers at TU/e have developed a very tiny wireless temperature sensor. It is powered in a very special way: from the radio waves that are part of the sensor’s wireless network.

This means that the sensor does not need even a single wire or a battery that would have to be replaced. The arrival of such sensors is an important development on route towards smart buildings, for instance.

The sensor contains an antenna that captures the energy from the wireless router. The sensor stores that energy and, once there is enough, the sensor switches on, measures the temperature and sends a signal to the router. This signal has a slightly distinctive frequency, depending on the temperature measured. The router can deduce the temperature from this distinctive frequency.

Source and Photo: www.tue.nl
Editing for Eindhoven News: Chuan Nie

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