A furnace and electrical measurement system is described that is capable of a wide range of time‐temperature relationships while allowing for the simultaneous measurement of sample temperature and resistance over any 3–4 decades in the range 10−2–107 Ω. The furnace system consists of a servo‐controlled push rod moving a sample fixture in a gradient furnace. The servo system is controlled by a cam wheel driven by a stepping motor whose speed can easily be changed during rotation to provide for increased profile versatility. Two‐ or four‐terminal resistance measurements and temperature measurements are possible with four lead wires; each is monitored with a chart recorder. Possible applications and examples of performance are discussed.
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E. T. Davis and E. D. Moiles, “Electric Systems for Temperature measurement and Control,” in Temperature, Its Measurement and Control in Science and Industry, edited by C. M. Herzfeld (Reinhold, New York, 1962), Vol. 3, Pt. 2.
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M. Kutz, Temperature Control (Wiley, New York, 1968).
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© 1973 The American Institute of Physics.
1973
The American Institute of Physics
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