Electrical Resistance Ratio of Chromel-P Wire between 4.2° and 600°K

  • B. L. Rhodes
  • L. S. Cram
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 9)


The measurement and control of the temperature of experimental apparatus in cryogenic environments has been widely explored [1]. Problems in such measurement and control by thermoelectric and thermal resistance effects are receiving constant attention. However, the application of Chromel-P vs. constantan thermocouples to cryogenic temperature measurement and control has not become widespread. The reason for this limited usage is not clear, especially since the sensitivity and potential [1, 2, 3] for this thermocouple system are higher than for the more popular copper vs. constantan thermocouple system. Furthermore, the use of low-thermal-conductivity Chromel-P [3] wire, instead of copper wire, would reduce heat leaks into cryogenic systems.


Resistance Ratio Electrical Resistance Ratio Thermal Expansion Data Constantan Thermocouple Residual Resistance Ratio 
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Copyright information

© Springer Science+Business Media New York 1964

Authors and Affiliations

  • B. L. Rhodes
    • 1
  • L. S. Cram
    • 1
  1. 1.Midwest Research InstituteKansas CityUSA

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