Engineers need to know the technology and limitations behind the available sensors if they want to make the right choice.

Touchstone Semiconductor's Martin Tomasz explains how to interfact to capacitive touch sensors using basic 555-timer circuits.

Non-contact displacement measurements can be made rapidly and with high precision using capacitive sensors over a modest range. The main features are: Capacitive sensing is a non-contact measurement ...

Two sensor plates – a target and a probe – form a parallel-plate capacitor, with the spacing of the plates measured using an electronic controller. Measurement ranges from 20 µm to 1250 µm are ...