A microcomputer-controlled vacuum adiabatic calorimeter for the temperature range 4.2–300 K |
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| Authors: | S Raman N S N Murty K Shivkumar Roy V Vasudeva Rao G Rangarajan |
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| Affiliation: | (1) Department of Electrical Engineering, Indian Institute of Technology, 600 036 Madras, India;(2) Department of Physics, Indian Institute of Technology, 600 036 Madras, India |
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| Abstract: | In this paper, we describe the operation of a vacuum adiabatic calorimeter controlled by a Rockwell AIM 65 microcomputer, which is suitable for specific heat measurements in the temperature interval 4.2–300 K. The system measures and calculates the specific heat and the results are printed out on a thermal tape. The cryostat, the electronic circuitry and the software are described. Results obtained using a pulsed heat technique on a specimen of high purity copper are given and compared with values reported in the literature. |
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| Keywords: | Calorimetry specific heats at low temperatures microcomputer-controlled instrumentation |
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