AC hum noise-based detection using HumTouch. (IMAGE)

Tokyo Metropolitan University

AC hum noise-based detection using HumTouch.

Caption

Electromagnetic waves from everyday power sources induce small currents inside the human body. This can leak out when we touch surfaces. A set of electrodes and an oscilloscope can detect these currents and locate where on the surface was touched. The process requires calibration to correctly convert currents into locations.

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Tokyo Metropolitan University

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