Pressure sensors are used in most industrial applications to measure, monitor and transmit pressure of gases and liquids. These devices are designed in such way that they can easily notify a control system when pressure changes take place.
One use of these sensors is to check whether a pressure level is under the safety level or not. If the pressure level goes too high then the associated machine should be shut off.
In addition to this, the readings or measurements are then passed to other devices such as chart recorders, computers or panel meters. There are five main types of pressure sensors – absolute, vacuum, gauge, sealed and differential sensors. All of these are designed in a different manner for different purposes.
Details regarding differential pressure sensors
These instruments detect fluid pressure and then create an electrical, pneumatic or mechanical signal. Generally, these devices are cylindrical in shape and have a pipe fitting on one side. On the other side, there is an electrical cable which sends a signal to the control system.
In addition to this, differential sensors can also measure the difference between two or more pressure inputs which are present at the device. At present, most differential sensors are made from stainless steel, as is very strong, durable and also offers great resistance to corrosion.