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Method and system for transferring calibration data between calibrated measurement instruments

  • US RE34,070 E
  • Filed: 06/07/1990
  • Issued: 09/22/1992
  • Est. Priority Date: 07/29/1988
  • Status: Expired due to Term
First Claim
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1. A test method for use with measurement instruments of the type which obtain measurement data from a sample and which utilize experimentally determined calibration curves to convert the measurement data into measurement readings, said test method being characterized by facilitating the calibration and use of a number of field instruments, and comprising the steps ofproviding a master measurement instrument;

  • providing at least one field measurement instrument;

    establishing a cross relationship between the measurement data detected by the master instrument and the measurement data detected by the field instrument;

    .Iadd.obtaining a background measurement by the master instrument;

    .Iaddend.establishing master calibration data for a particular material by testing samples using the master instrument;

    creating adjusted calibration data, specific for a particular field instrument, by adjusting the master calibration data based upon the previously established cross relationship between the master instrument and that particular field instrument .Iadd.and the previously obtained master instrument background measurement.Iaddend.;

    .Iadd.obtaining a background measurement by the field instrument;

    .Iaddend.andusing the adjusted calibration data in the field instrument .Iadd.and the background measurement obtained by the field instrument .Iaddend.to convert measurement data obtained by the field instrument into measurement readings.

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