Nowadays, pressure sensors are commonly used in most commercial and industrial devices and applications. These include hydraulic systems, automotive vehicles, engines and process control applications. For different devices and pressure measurements, several kinds of pressure sensors are manufactured. Here are four main types of pressure sensors:
• Gauge pressure sensors
• Differential pressure sensors
• Vacuum pressure sensors
• Absolute and barometric pressure sensors
All the above mentioned pressure sensors are used in measuring the pressure which is imposed or generated at the time of operation. Pressure sensors give readings on the basis of the pressure applied on the fluid or gas. In some instance this information will help the operator to know whether the pressure is under a safe level or not.
Nowadays, gauge and vacuum pressure sensors are commonly used in many manufacturing plants.
Gauge pressure sensors – This kind of pressure sensor is used to read pressure which is referenced against atmospheric pressure.
Vacuum pressure sensors – The output of these sensors is zero at atmospheric pressure and they can read a value less than atmospheric pressure when in use.
All pressure sensors have a pressure measuring cell along with a base plate and measuring membrane or diaphragm.
