Pressure transmitter
Pressure transmitters are widely used in industrial process control systems to sense one or more physical variables of a process fluid (pressure, flow, flow-rate, et cetera) by virtue of one or more differential measurements. A pressure transmitter includes a pressure sensor which is coupled to a process fluid and provides an output in response to pressure applied by the process fluid. There are two general types of pressure transmitters. The pressure sensor couples to the pressure of the process fluid through an isolation system. The isolating system can comprise, for example, a isolation diaphragm which is in physical contact with the process fluid and an isolation fill fluid which extends between the isolation diaphragm and the pressure sensor. The isolation diaphragm isolates the pressure sensor from corrosive process fluids being sensed. Pressure is transferred from the isolation diaphragm to the sensor through a substantially incompressible isolation fluid carried in a passageway. Differential pressure transmitters measure the pressure differential between two process pressures and require two connections to the process fluid. The second type of pressure transmitter measures an absolute or gage pressure of the process fluid and requires a single coupling to the process fluid. A differential pressure transmitter is constituted by a main body that comprises an internal enclosure that includes a measurement chamber that accommodates a pressure transducer. A differential pressure sensor measures a relatively small pressure differential over a relatively wide absolute pressure range.
Pressure transmitter product listings
Our diffusive silicon pressure transmitters employ application-specific integrated module, through fine temperature shift ,zero point and non-linear compensation, to realise accuracy measurement and transmission of medium's pressure change of liquid, gas and vapor, etc.
Diffusive silicon pressure transmitter
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