A thin-film platinum resistance thermometer (SDT101A, Tame Electric Work Company, Japan), which is available commercially, has useful characteristics for thermometry in the range of 20 to 300 K and in high magnetic fields up to 5 T. The Z function-table of this platinum resistance thermometer (PRT)
Russian germanium resistance thermometers at low temperatures in magnetic fields
โ Scribed by L.M. Besley; C.Q. Zhang; E.C. Horrigan; A. Szmyrka-Grzebyk
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 321 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0011-2275
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โฆ Synopsis
A type of germanium resistance thermometer manufactured at the Semiconductor Institute, Kiev, USSR, displays much lower magnetoresistive effects than most other types of cryogenic semiconductor resistance thermometers. Measurements are reported on the temperature dependence of the electrical resistance of these thermometers (1.5-30 K at zero magnetic field) and their zero-field stability when exposed to thermal cycling between 20 and 288 K.
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An assessment of four ddferent types of small low-cost platinum res=stance thermometers is reported They have relatwely large but reproducible residual resistances, and can be used =n place of the so-called standard platinum resistance thermometers for most purposes They are also very useful for the
upon the properties of the particular resistors used. It should therefore be used with caution beyond regions where direct calibration is possible. It should also be noted that the Clement and Quinnell empirical resistance-temperature formula 7 approximates equation (1) only for special values of th
The effects of static magnetic field up to 16 kG on seven midget disc thermistors and three miniature platinum resistance thermometers were measured at 77 K. Corrections for the magnetoresistance of the electrical leads and solder junctions were made from data taken on a copper wire coil. A virtual