The Cryobridge, an Automatic AC Potentiometer for Resistance Thermometry at Low Power Dissipation

  • P. C. F. Wolfendale
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 18)


The need for an automatic ac potentiometer arose from the necessity of using automatic double bridges for platinum resistance thermometry (PRT). With such an instrument, accuracies of resistance ratio measurement of four parts in 107 are possible provided the potential leads are of low resistance [1].


Thermal Noise Output Impedance Supply Frequency United Kingdom Introduction Leighton Buzzard 
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Copyright information

© Springer Science+Business Media New York 1973

Authors and Affiliations

  • P. C. F. Wolfendale
    • 1
  1. 1.Automatic Systems Laboratories Ltd.Leighton Buzzard, BedsUK

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