一、绪言与热电偶相比用热敏电阻测温不需温度补偿,测试设备简单,操作容易,读数直观迅速。由于热敏电阻的灵敏度高,信号强,易进行模—数转换实现控温自动化。近年来,国内外高温热敏电阻的研究进展较快,但对其电性质的研究报导较少。近年来,我们系统地开展了混合稀土氧化物和各种类型的稀土复合氧化物高温热敏材料的研究工作。表1中列举了我们研究的几种典型热敏材料的适用温度范围及其对应的 I. INTRODUCTION Compared with thermocouple, thermistor temperature measurement without temperature compensation, test equipment is simple, easy to operate, intuitive and rapid readings. As the thermistor sensitivity, strong signal, easy to carry out analog-digital conversion temperature control automation. In recent years, the research progress of high temperature thermistors at home and abroad has progressed rapidly, but few reports on its electrical properties. In recent years, we systematically carried out research work on mixed rare earth oxides and various types of rare earth composite oxide high temperature thermal materials. Table 1 lists some of our study of the typical temperature-sensitive materials and the corresponding temperature range