Programmable compensation of bridge circuit thermal response

Details Programmable compensation of bridge circuit thermal response Programmable compensation of bridge circuit thermal response

1991-06-04

1993-03-30

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

With pressure and/or temperature compensation

73766, 73862623, 73862628, 323367, 324725, 36457103, G01L 904, G01L 1904

Patent

active

051973340

ABSTRACT:
The present invention provides compensation for temperature in a transducer by connecting the adjustment resistors to the transducer itself to provide a correct transducer output. A number of switches are used to couple the adjustment resistors to the transducer circuit. An individual resistor may be coupled in parallel or in series with a transducer resistance. The control input for the switches are each coupled to a separate bit output of a multiple bit memory. The memory is programmed to control the duty cycle of the switches when addressed.

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