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热电温度计在各种介质的长期使用过程中,分度特性的稳定性是它们的最重要的特性之一。本文研究了在二氧化碳气氛和空气中,当温度加热到400-700℃时,镍铬-镍铝温度计热电动势的稳定性。这种温度计是由用矿物绝缘,装在不锈钢外壳里的铠装热电偶制成的(KTMC)研究表明在两种气氛下,分度温度为600℃时,热电动势最大变化不超过4-5℃。(电动势等效温度值。) 下面对苏联制造的直径d=1.0mm和d=1.5mm的KTMC铠装热电温度计示值稳定性进行研讨。测定了镍铬-考铜(XK)
Thermoelectric thermometers In the long-term use of various media, the stability of the indexing characteristics is one of their most important features. In this paper, the stability of thermo-electromotive force of nickel-chromium-nickel-aluminum thermometer in carbon dioxide atmosphere and air is studied when the temperature is heated to 400-700 ℃. This thermometer is made of mineral-insulated, armored thermocouple housed in a stainless steel housing (KTMC) and shows that in both atmospheres the maximum change in thermoelectromotive force does not exceed 4-5 at an indexing temperature of 600 ° C ℃. (Equivalent temperature of electromotive force.) The stability of indications for the KTMC armored thermoelectric thermometer with diameter d = 1.0 mm and d = 1.5 mm manufactured by the Soviet Union is discussed below. Determination of nickel-chromium - test copper (XK)