一、前言工业装置的火焰或高温气体的热传导过程,例如在锅炉燃烧室、工业窑炉、燃气轮机以及汽轮机、喷气机、过热器、换热室、蓄热室、热交换器等场合,为了计算热量平衡和热效率等,正确测量气体的温度是必要的。作为测定高温气体温度的方法,应用得最广泛的要数热电偶了。热电偶虽有很高的精确度,但与其它测量温度的仪器一样,在测量气体温度时因测定条件而存在很大的误差。即在测定气体温度时,存在着和测量固体或液体的温度所不同的条件。本文在叙述了关于测量高温气体温度的一般情况后,再说 I. INTRODUCTION The heat conduction of flame or high-temperature gas in industrial installations, for example, in boiler combustion chambers, industrial furnaces, gas turbines and steam turbines, jets, superheaters, heat exchangers, regenerators, heat exchangers, Heat balance and thermal efficiency, the correct measurement of gas temperature is necessary. As a method of measuring the temperature of a hot gas, the most widely used thermocouple is used. Although the thermocouple has a high degree of accuracy, like other instruments that measure temperature, there is a large error in the measurement of the gas temperature due to the measurement conditions. That is, when measuring the temperature of the gas, there is a different condition from that of measuring the temperature of the solid or the liquid. This article goes back to the general description of measuring the temperature of hot gases