Pressure sensors are industrial devices that are used to gauge liquid and gas pressures. The mechanism is very simple. The pressure sensor converts energy in another structure.
Pressure sensors are capable to generate signals with the help of pressure applied on optical, electrical, and auditory along with visual signals. Pressure sensors can effectively monitor gas flow, liquid flow, speed, altitude and water level for different purposes.
Pressure sensors have different versions depending on the applications they will be used for, the cost of the product and the technology used to manufacture the sensor. Some of the different types of pressure sensors are-
Absolute pressure sensor
Absolute pressure sensor takes sensor recordings according to the perfect vacuum pressure.
Gauge pressure sensor
Gauge pressure sensor is used for different purposes because of its capability to adapt to atmospheric pressures of various locations.
Vacuum pressure sensor
Vacuum pressure sensor is more commonly used to measure pressure that may be less than a given location’s atmospheric pressure.
Differential pressure sensor
Differential pressure sensor is helpful to get a pressurised flow in vessels. It is also effective to track if there has been an increase or decrease in two or more pressure systems.
Sealed pressure sensor
Sealed pressure sensor simply calculates pressure at sea level.
Technologies used
Pressure sensors are manufactured using new, emerging technologies. Sensors that make use of fibre optics in their manufacture are termed as fibre optic sensors. Small pieces of fibre optic interferometers are used to make the fibre optic sensor. Some other technologies that are used to manufacture pressure sensors are strain gauge microelectromechanacial systems, semiconductor piezoresistive, vibrating elements and vibrating capacitance.
