Compensated pressure transducer employing digital processing tec

Details Compensated pressure transducer employing digital processing tec Compensated pressure transducer employing digital processing tec

1977-11-21

1980-03-04

Smith, Jerry

Boots, shoes, and leggings

364558, 73765, 73766, G06F 1520

Patent

active

041920058

ABSTRACT:
A semiconductor sensor configuration employs piezoresistors arranged in a bridge configuration. A memory has stored therein at predetermined locations, values indicative of error voltages associated with the particular bridge circuit due to undesireable variations of temperature and pressure. The bridge circuit is coupled to digital processing circuitry which serves to access the memory at desired locations to retreive the values stored and to process these values in order to compensate the output signal supplied by the bridge during operation to provide a compensated output signal truly determinative of the applied pressure as being compensated for the particular error signals as stored in the memory.
It is also understood that the above described technique has applicability in compensating other sensor configurations which employ non-semiconductor strain gages.

REFERENCES:
patent: 3781869 (1973-12-01), Sudnick et al.
patent: 3790910 (1974-02-01), McCormack
patent: 3913392 (1975-10-01), Nagase et al.
patent: 3958108 (1976-05-01), Shimomura
patent: 4031630 (1977-06-01), Fowler

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