What Is A Pressure Transmitter ?

A pressure transmitter is a mechanical device that measures the expansive force of a liquid or gaseous sample. The transmitter converts physical pressure into an electrical signal. Also known as a pressure transducer, this type of sensor is typically composed of a pressure sensitive surface area made of steel, silicon, or other materials depending upon the analyte’s composition. Behind these surfaces are electronic components capable of converting the applied force of the sample upon the pressure sensor into an electrical signal.

Pressure is generally measured as a quantity of force per unit of surface area and is expressed as the value required to stop a liquid, gas, or vapor from expanding. Various derived units are used to quantify pressure.  Various derived units are used to quantify pressure, including:

  • As a proportion of / relation to a pascal (Pa), or a single newton per square meter (1 N/m2);
  • A value of pounds per square inch (psi).

Pressure sensitive environments, such as the gas, petrochemical, laboratory, and pharmaceutical industries, often require pressure transmitters to monitor the applied force of liquids and gases as a value of either Pa or psi. This necessitates the precise integration of pressure transmitters into rapid electrical conversion equipment, to ensure results are accurate and delivered in real-time.


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