Ingersoll-Rand Xe-145M, Карманный справочник

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P5 Analog Pressure Sensor Inputs
Pressure transducers are
used to convert air pressure
signals to voltage signals
between 0.5 and 4.5 Volts
DC.
How a pressure transducer work?
The transducer contains a
metal diaphragm
connected to a small piece
of steel called the beam.
The beam is attached to a
strain gauge. As pressure
pushes the diaphragm, the
beam flexes and bends the
strain gauge. A continuous voltage is applied to the
strain gauge assembly. As the strain gauge bends due
to the changing pressure on the diaphragm, the
resistance value through the strain gauge changes a
corresponding amount. The result is a variable output
signal that ranges from 0.5 VDC (0 PSIG (0 Bar)) to 4.5
VDC (225 PSIG (15.51 Bar)). This output signal is