Measuring and testing – Fluid pressure gauge – Electrical
Reexamination Certificate
2011-05-31
2011-05-31
Allen, Andre J (Department: 2855)
Measuring and testing
Fluid pressure gauge
Electrical
Reexamination Certificate
active
07950286
ABSTRACT:
A multi-range pressure sensor apparatus and method that provide multiple signal paths for detecting a broad range of pressures with a high accuracy. A pressure transducer can be configured to include the use of a pressure sense die with piezoresistive elements integrated into the sensor die and in a Wheatstone bridge configuration. A sensed output signal from the sense die can be transferred to one or more amplifier circuits. A programmable compensation circuit can be utilized to multiplex different amplified output signals from each of the amplifier circuits and to provide a digital output. A memory associated with the programmable compensation circuit provides separate compensations, which are stored for each of the different signal paths and removes errors due to amplifier gain and offset.
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Allen Andre J
Honeywell International , Inc.
Seager Tufte & Wickhem LLC
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