Method and apparatus for checking sensors
AssigneeGambro AB
InventorsBjörn Ericson, Per-Ola Wictor
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Abstract
Methods and apparatus are disclosed for testing differential pressure sensors. The method includes applying a pressure of predetermined value to the reference side of the differential pressure sensors, measuring the output values from the measurement sides of the differential pressure sensors, and comparing the measured output values. The disclosed apparatus includes a pump for simultaneously applying a pressure of a predetermined value to the reference side of a number of differential pressure sensors.
Claims23
A method for testing a plurality of differential pressure sensors, each of said plurality of differential pressure sensors including a reference side and a measurement side, said method comprising applying a pressure having a predetermined value to said reference side of said plurality of differential pressure sensors while atmospheric pressure is present on the measurement side of said plurality of differential pressure sensors, measuring the output values from said measurement side for each of said plurality of differential pressure sensors, and comparing said plurality of measured output values.
Apparatus for testing a plurality of differential pressure sensors, each of said plurality of differential pressure sensors including a reference side and a measurement side, said apparatus comprising pressure means for simultaneously applying a pressure having a predetermined value to said reference side of said plurality of differential pressure sensors while atmospheric pressure is present on the measurement side of said plurality of differential pressure sensors.
Dependencies are inferred from the claim text.