Abstract
A simple calibration procedure using about 30÷40cm3 of cryogenic liquid (as hydrogen, neon, nitrogen, argon and oxygen) is described. The liquefaction of about 80 litres of gas is carried out in a conventional helium or nitrogen crycstat, in which a variable thermal contact between the measuring chamber and the cryogenic bath is provided for. Conditions of a successful calibration as well as the achieved results are described.
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References
Henning F., Moser H.: Temperaturmessung, 2. Aufl., J. A. Barth Verlag, Leipzig, 1955, 3. Aufl., Springer-Verlag, Berlin-Heidelberg-New York, 1977.
Orlova M. P.: Nizkotemperaturnaya termometriya, Izdat. standartov, Moskva, 1975 (in Russian).
Vepřek J.: Elektrické měření nízkých teplot, SNTL, Praha, 1977 (in Czech).
Šindelář V.: International Practical Temperature Scale, EJPT-68, Czech. J. Phys. A22 (1972) 42 (in Czech).
Schooley J. F., Soulen R. J. Jr., Evans G. A. Jr.: Preparation and Use of Superconductive Fixed Point Devices, SRM 767. NBS Special Publication 260-44.
Hoare F. E., Jackson L. C., Kurti N.: Experimental Cryophysics, Butterworth, London, 1961.
Lobo L. Q., Staveley L. A. K.: Cryogenics19 (1979), No. 6, 335.
Brdička R., Dvořák J.: Elementary Physical Chemistry, Academia, Praha, 1977 (in Czech).
Malkov M. P., Danilov J. B., Zel'dovich A. G., Fradkov A. B.: Spravochnik po fiziko-technicheskim osnovam kriogeniky, Izdatel'stvo Energia, Moskva, 1973 (in Russian).
Novák R.: Calibration of Ge-thermometers for low-temperatures, Conference on metrological problems in temperature measurements, Pardubice, 1978. Novák R.: Calibration of Ge-thermometers, Conference on metrological problems in low temperature measurements, Hradec Králové, 1980.
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The authors are indebted to Mr. V. Zíta for assembling the device and assisting in experiments, to Miss I. Drahokoupilová for the treatment of data and to R. Novák, CSc., for valuable critical comments.