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EFFECT OF TEMPORARY TEMPERATURE CHANGE ON STABILITY OF WIRE-WOUND RESISTANCE STANDARDS

J. C. Ryu, Y. T. Park, K. S. Han, K. M. Yu
  • Abstract:
    Irreversible resistance changes of Thomas type 1 ohm resistors according to temporary temperature change is about 0.03 ppm/y in average by reported results of PTB, IEN and NIST, but the behavior did not occur in NML 1 ohm resistors under the same condition. By qualitative analysis based on thermal stress and strain, it is considered that a major element of the behavior is thermal stress by different thermal expansions of coils and mandrels.
  • Keywords:
    irreversible resistance changes, Thomas type resistors, NML type resistors, thermal stress
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  • DOI:
    _unreg_wc-2000.317

Event details:

  • IMEKO TC:
  • Event name:
    XVI IMEKO World Congress
  • Title:

    Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future

  • Place:
    Vienna, AUSTRIA
  • Time:
    25 September 2000 - 28 September 2000