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 ...

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

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

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 ...

The LVDT is a natural contender for high-temperature applications when compared to other displacement technologies such as potentiometers, magnetostrictive transducers, and capacitive sensors.