Pressure sensors, also known as pressure transducers, are widely used in different technological spheres. The common transducers may resist nearly 200-450° F temperature, while high temperature pressure transducers can withstand heat up to 600° F.
A high temperature pressure transducer comprises an extended tubular part which has an opening from the front to the back surface. This tubular piece that is generally fabricated from metal has a ceramic sensor surface or tip at the front end.
This ceramic sensor is actually a small ceramic disc with a curved front that has an extending stem inserted into the front part of tubular piece. The column of the transducer terminates in the back end. This back end, with flat surfaces which are semiconductor piezoresistors, is thinner in comparison to the column.
The force received by the ceramic sensor is transferred through the tube or column to the sensors on the flat surfaces. The output produced by the sensors is indicative to the applied force.
While choosing high temperature pressure transducer make sure you take into account the operating temperature range. High temperature may result in a possible error in pressure measurement.
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