Pressure sensors are devices which are manufactured to gauge the pressure imposed on different liquids and gases. In technical terms, pressure is known as an expression of the force which is required to stop fluid expanding. Pressure which is measured by these sensors is stated in force per unit area.
An electric signal is generated by pressure sensors which is related to the pressure imposed on the applications. If you run a utility plant where high pressure is imposed for production purposes then you must install pressure sensors in the units. They will provide you with pressure-related information.
Due to different requirements, different types of pressure sensors are introduced in the market. This includes absolute pressure sensors, gauge pressure sensors, vacuum pressure sensors, sealed and differential pressure sensors.
What are differential pressure sensors?
Out of the different options, differential pressure sensors are most commonly seen in a lot of the industrial applications. This is because they are designed to gauge pressure changes between two or more applications. With the help of differential pressure sensors, you can measure pressure which is introduced in different units. In some cases, these pressure sensors are used to monitor pressure level or flow in pressurised vessels.
Differential pressure sensors can gauge pressure from 0-0.25mbar up to 0-200bar. They are available at output signals such as 4-20mA and 0-1-Vdc.
If you have decided to buy differential pressure sensors for your industrial applications then you have to consider the pressure range, operating temperature range, cost, etc.

