近年来,国内在测量钢水、铁水和其他熔融金属的温度中,多使用如铂铑10—铂;铂铑30—铂铑6和钨铼6—钨铼20等快速微型热电偶。用快速微型热电偶测量温度时必须配用一台专用的电子电位差计,要求这台仪表的指针全行程时间不大于3秒,记录纸的走纸速度为100～300毫米/分(即每转不大于10分钟)。 In recent years, the domestic use in the measurement of molten steel, hot metal and other molten metal temperature, the use of more such as platinum and rhodium 10-platinum; platinum and rhodium 30-platinum and rhodium 6 and tungsten rhenium tungsten-tungsten rhenium 20 rapid micro-thermocouple. The temperature must be equipped with a dedicated electronic potentiometer with a microthermal miniature thermocouple, requiring that the total travel time of the gauge be less than 3 seconds and that the recording paper be fed at a speed of 100-300 mm / min Turn less than 10 minutes).