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为了开展节能工作,需要进行工业炉、窑的热平衡或热效率的测试工作。炉、窑的烟气温度是个重要参数,对它测量准确与否,关系到测试工作的准确度。影响温度测量准确度的因素很多,除测量仪表外,还有测温元件、元件安装位置和元件所处的环境温度等。就测温元件而言,显然热电阻元件的精确度(0.1%)较热电偶(0.5%～1%)高,如前所述,测量结果的准确程度不完全取决于测温元件自身的精确度,更重要的是对元件正确地使用。
In order to carry out energy-saving work, the need for industrial furnaces, kilns, heat balance or thermal efficiency of the test. Furnace, kiln flue gas temperature is an important parameter, accurate measurement of it, relates to the accuracy of the test work. Many factors affect the accuracy of temperature measurement, in addition to measuring instruments, there are temperature measurement components, components and components installed in the location where the ambient temperature. As far as the temperature sensing element is concerned, it is clear that the accuracy of the thermal resistance element (0.1%) is higher than that of the thermocouple (0.5% -1%). As mentioned above, the accuracy of the measurement result does not depend entirely on the accuracy of the temperature sensing element itself Degrees, more importantly, the correct use of components.