Printable sensors to detect fingers without touching

from EngineerLive:

Researchers form the Fraunhofer Institute are working as part of the EU 3Plast research consortium to develop sensors that can be printed onto plastic film and attached to objects so that, for example, electronic devices can be controlled just by pointing a finger.

Rather than responding to a directly applied force or acceleration, the sensors react to tiny fluctuations in temperature and differences in pressure, thereby recognising a finger as it approaches.

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