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Electronics & Test

Factors to Consider When Selecting a Pressure Sensor

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lynnbr2
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Hydraulic Pulses
lynnbr2   1/29/2014 8:54:01 AM
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The author mentions evaluating  Pressure Spikes, but I would like to expand on that topic. For monitoring Hydraulic Power Units, we measure pressure for closed loop control. Axial Piston Pumps create a sort of pressure pulsation, a little different - but similar to pressure spikes. This can accelerate wear & tear on the pressure sensor (and on Bourdon-type pressure gauges as well). Some vendors include a "snubber" inside the sensor to reduce the effects of these natural pulsations in the pressure. Alternatively, you can add a mechanical snubber in front of the sensor to extend the life of the sensor.

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