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Answer Posted / eswar
the differential presser acting on a sensing diaphragm
produces a force therefore we get diaphragm
deformation(small 10^-5m).This displacements we can measure
through variable capacitance or variable reluctance
,resistive strain gauge sensors.This sensor output is
connected to a bridge which gives the output voltage.Then
instrumentation amplifier converts the voltage to current
which we can transmit to the control room.
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