Падение электрического сопротивления изоляции термопар типа N в металлической оболочке при температурах выше 800 °C
Abstract
The result of study of drop of insulation electrical resistance of two type N thermocouples with diameters 1,5 and 3,0 mm placed in metal case with inorganic insulation at temperatures 850-1500 °C are presented.
About the Authors
М. Хастингс
Национальная физическая лаборатория, Теддингтон, Великобритания
Russian Federation
Russian Federation
Д.Ж. Пиарс
Национальная физическая лаборатория, Теддингтон, Великобритания
Russian Federation
Russian Federation
Г. Мачин
Национальная физическая лаборатория, Теддингтон, Великобритания
Russian Federation
Russian Federation
References
1. Bentley R.E.Handbook of Temperature Measurement. V. 3: The Theory and Practice of Thermoelectric Thermometry.N.Y.: Springer, 1988.
2. Rusby R. e. a.An evaluation of sheathed Nicrosil/Nisil thermocouples up to 1300 °C // Materials at High Temperatures. 1992. V.10.P. 193–200.
3. Burley N.Advanced integrally-sheathed type N thermocouple of ultra-high thermoelectric stability // Proc. Austral. Instrum.& Meas. Conf. Adelaide: Institution Engineers Aust., Nov. 1989.P. 90–95.
4. Tavener J.Private communication, 2010.
5. Berry R. J.Analysis and control of electrical insulation leakage in platinum resistance thermometers up to 1064 °C //Metrologia. 1995. V.32. P. 11–25.
6. Berry R.J. Ac and Dc insulation leakage in platinum resistance thermometers up to 750 °C //Metrologia. 1985. V.21. P. 207–223.
7. Morice R., Ridoux P., Filtz J.R.Improved measurements in contact thermometry at high temperature through practical fixed points //Measure. 2008. V.3.P. 44–49.
8. BS EN (IEC) 60584 –1:1996: Thermocouples – Reference tables. See also ASTM E 230 and NIST Monograph 175, 1993.
9. Bentley R. E., Morgan T.L.Ni-based thermocouples in the mineral-insulated metal-sheathed format: thermoelectric instabilities to 1100 °C// J. Phys. E: Sci. Instrum. 1986. V.19. P. 262–268.
10. ASTM 608.Standard Specification for Mineral-Insulated Metal-Sheathed Base Metal Thermocouples, 2000.
Review
For citations:
, , . Izmeritel`naya Tekhnika. 2012;(8):60- 63. (In Russ.)
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