Pressure sensors are industrial products which are designed to monitor the pressure imposed on different fluids. These devices work as transducers which convert the energy into another readable form. Different variables such as gas flow, fluid, water level and altitude are measured with pressure sensors. In some industries, pressure sensors are also known as pressure transmitters or indicators.
Various types of pressure sensors
Due to the different measurement requirements, various pressure sensors are manufactured these days. Absolute pressure sensors are most commonly used, as they sense pressure according to the vacuum. Even gauge pressure sensors are installed in various applications because they can easily check pressure in different locations.
Vacuum pressure sensors can monitor the pressure which is less than the atmospheric pressure. Differential pressure sensors are designed to monitor the pressure of two or more pressure switches. These sensors are preferred by many operators because they monitor more than one system. Lastly, sealed sensors are used to calculate sea level pressure.
What technologies are used in pressure sensors?
To manufacture different pressure sensors, various new technologies have been introduced by manufacturers. Fiber optic technology uses small sized fiber optic interferometers to monitor pressure changes. Mechanical deflection is a technology which uses the mechanical properties of the liquid to measure the pressure.
Various other technologies such as semiconductor piezoresistive, vibrating elements, microelectromechanical systems and vibrating capacitance are also used. The pressure sensors manufactured by using these technologies are used in different applications.
