the capacitive sensors must be tuned during installation in order to achieve optimum effectiveness. For example, capacitance level sensors used to detect fluid levels through the wall of a glass ...

The basic idea is that it’s possible to measure a capacitor’s capacitance ... sensor. The sensor ignores wood and plastic, but an approaching hand is easily detected. The sensor also detects ...

The working principle of digital calipers is mysterious enough that we’d never think to dismantle, much less improve them, right? Well, think again, as [Limi DIY] retrofits the processing ...