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A PROCEDURE FOR THE EFFECTIVE RECALIBRATION OF LIQUID-IN-GLASS THERMOMETERS.

Author(s) : WISE J. A.

Type of article: Periodical article

Summary

HIGH QUALITY LIQUID-IN-GLASS THERMOMETERS REQUIRE ONLY ONE COMPLETE CALIBRATION IN THEIR LIFETIME AND IT IS POSSIBLE TO AVOID THE USUAL REQUIREMENT FOR COMPLETE RECALIBRATION OF THE INSTRUMENT BY THE RECALIBRATION OF A SINGLE PREVIOUSLY CALIBRATED TEMPERATURE. THE NEED FOR RECALIBRATION IS DUE TO THE GRADUAL RELAXATION OF RESIDUAL MECHANICAL STRAINS IN THE GLASS (VOLUME OF THE BULB). THE RECALIBRATION OF A SINGLE POINT PROVIDES A RELIABLE INDICATION, AND A MEANS FORTHE ACCURATE ADJUSTMENT OF THE REMAINDER OF THE SCALE. THE PAPER DESCRIBES A PROCEDURE FOR THIS RECALIBRATION WHICH CAN BE PERFORMED IN THE USER'S LABORATORY.

Details

  • Original title: A PROCEDURE FOR THE EFFECTIVE RECALIBRATION OF LIQUID-IN-GLASS THERMOMETERS.
  • Record ID : 1992-1047
  • Languages: English
  • Source: NIST spec. Publ. - NIST SP 819; 13 p.; 4 fig.; 7 tabl.; 5 ref.
  • Publication date: 1991/08
  • Document available for consultation in the library of the IIR headquarters only.

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