PRESSURE DETECTION CIRCUITRYPressure DetectorsDetectionCircuitryFigure 10 shows a block diagram of a typical pressure detection circuit.Figure 10 Typical Pressure Detection Block DiagramThe sensing element senses the pressure of the monitored system and converts the pressure toa mechanical signal. The sensing element supplies the mechanical signal to a transducer, asdiscussed above. The transducer converts the mechanical signal to an electrical signal that isproportional to system pressure. If the mechanical signal from the sensing element is useddirectly, a transducer is not required and therefore not used. The detector circuitry will amplifyand/or transmit this signal to the pressure indicator. The electrical signal generated by thedetection circuitry is proportional to system pressure. The exact operation of detector circuitrydepends upon the type of transducer used. The pressure indicator provides remote indication ofthe system pressure being measured.IC-02 Page 12 Rev. 0
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