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An automated high precision calorimeter for the temperature range 200K–400K. Part 1: Design and performance

  • Experimental Techniques and Instrumentation
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Abstract

A fully automated calorimeter has been designed and tested over the temperature range 200K–400K. The system may be used for measurements with an absolute accuracy of 0.2% of samples of approximate mass 50g and thermal capacity 15 JK−1. The temperature of the sample is determined by a quartz crystal thermometer of resolution 100 µK which is not in direct thermal contact with the sample. The performance of the system is illustrated by results obtained on high purity copper, distilled water and K2PbCu(NO2)6 which exhibits very sharp first order phase transitions at about 273.4K and 281.8K.

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Author notes

  1. R Street (Vice-Chancellor)

    Present address: University of Western, Australia

  2. E S R Gopal

    Present address: Physics Department, Indian Institute of Science, 560 012, Bangalore

Authors and Affiliations

  1. Research School of Physical Sciences, Australian National University, 2600, Canberra, A C T, Australia

    I S Williams, R Street (Vice-Chancellor) & E S R Gopal

Authors
  1. I S Williams
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  2. R Street
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  3. E S R Gopal
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Williams, I.S., Street, R. & Gopal, E.S.R. An automated high precision calorimeter for the temperature range 200K–400K. Part 1: Design and performance. Pramana - J Phys 11, 519–527 (1978). https://doi.org/10.1007/BF02848197

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  • DOI: https://doi.org/10.1007/BF02848197

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