rõhuanduril

Rõhuanduril, also known as a pressure sensor, is a device that converts a physical quantity, namely pressure, into an electrical signal. This electrical signal can then be measured, processed, and used to monitor or control various systems. Pressure sensors are ubiquitous in modern technology, playing a crucial role in a vast array of applications.

The fundamental principle behind most pressure sensors involves a mechanical element that deforms or changes its physical properties when subjected to pressure. This deformation is then translated into an electrical output. Common sensing elements include diaphragms, bellows, and Bourdon tubes. The way this mechanical change is converted into an electrical signal varies depending on the type of sensor. Piezoresistive sensors, for example, utilize materials whose electrical resistance changes with applied strain. Capacitive sensors measure changes in capacitance due to variations in the distance between two conductive plates caused by pressure.

Pressure sensors are categorized based on what they measure. Absolute pressure sensors measure pressure relative to a perfect vacuum. Gauge pressure sensors measure pressure relative to atmospheric pressure. Differential pressure sensors measure the difference between two pressures. The choice of sensor depends heavily on the specific application requirements, including the pressure range, accuracy needed, operating environment, and cost considerations. Their widespread use in automotive, industrial automation, medical devices, and aerospace highlights their importance in enabling precise control and monitoring of numerous processes.