Data processing: measuring – calibrating – or testing – Calibration or correction system – Circuit tuning
Reexamination Certificate
2006-02-07
2006-02-07
Hoff, Marc S. (Department: 2857)
Data processing: measuring, calibrating, or testing
Calibration or correction system
Circuit tuning
C341S120000
Reexamination Certificate
active
06996488
ABSTRACT:
A sensor signal conditioner for temperature compensating, linearizing, and amplifying sensor signal output in electronic instrumentation circuits includes a programmable gain instrument amplifier having an input connected to a sensor; and a comparator for comparing an output voltage of the amplifier to a desired output voltage value. A micro-controller controls the instrument amplifier gain and offset. A mode switch converts an I/O pin to input the desired output voltage value in programming mode and connects the I/O pin to the amplifier output in user mode. A memory stores a programming protocol in the sensor signal conditioner so that in programming mode, the protocol stores programmed values and linearly fits the programmed values to set trim values for temperature compensating, linearizing, and amplifying the instrument amplifier output. The I/O pins and mode switches of several sensor signal conditioners can be controlled simultaneously to mass produce transducers using the sensor signal conditioner.
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Chu Charles
Young Michael
Advanced Custom Sensors, Inc.
Raymond Edward
LandOfFree
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