Linear Capacitive Proximity Sensor

https://www.electronics-lab.com/project/linear-capacitive-proximity-sensor/

The project presented here is an analog capacitive proximity sensor. The circuit is from Texas Instruments application note. Most conventional capacitive proximity sensors produce a “1” or “0” output, this circuit produces a DC output that is a function of the size and relative permittivity of an object passing between the sense capacitor plates. Different […]