Capacitive pressure sensing

Capacitive pressure sensing measures pressure by detecting changes in electrical capacitance, which is the ability of a system to store electrical charge. The sensor consists of a flexible insulating layer (dielectric) and two conductive plates (electrodes). When pressure is applied, the distance between the plates changes or the dielectric's properties alter, causing a measurable change in capacitance. This change is then converted into an electrical signal that correlates to the applied pressure. Capacitive sensors are precise, respond quickly, and are commonly used in digital devices, automotive systems, and industrial applications for accurate pressure measurement.