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Method for compensating errors in a pressure transducer

  • US 5,269,311 A
  • Filed: 05/11/1992
  • Issued: 12/14/1993
  • Est. Priority Date: 08/29/1989
  • Status: Expired due to Term
First Claim
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1. A method for using a pressure transducer to monitor pressure and for compensating for variances in both a characteristic pressure sensitivity and a zero pressure offset of an output signal of the pressure transducer, comprising the steps of:

  • (a) providing a gain resistor that is unique to the pressure transducer, wherein the gain resistor has a resistance that compensates for the characteristic sensitivity of the pressure transducer such that when the pressure transducer is used to monitor pressure, the output signal varies with pressure in a predetermined manner;

    (b) determining a zero pressure offset compensation to compensate for the zero pressure offset of the pressure transducer; and

    (c) compensating the output signal from the pressure transducer for the zero pressure offset while monitoring the pressure with the pressure transducer.

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