4. Three topologies for capacitive sensors: proximity sensor using a finger as the ground plate (a), liquid-level sensing with parallel sensor and ground (b), and material detection and analysis (c).

Recently I came across some non-contact liquid level sensors and gathered them out of curiosity. They have been available in the market for the past few years, but this time I was lucky enough to get ...

The sensor shown here is essentially two plates mounted side-by-side, attached to an Arduino Nano using the Capacitor library which uses just two pins, one digital and one analog.

Fuel management and environmental systems technology provider Veeder-Root adds Liquid Level Measuring Sensors to its portfolio. They offer simple detection and remote monitoring in aboveground ...