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目前国内外温度检测仪表中,最广泛采用的还是热电偶和热电阻。它作为温度传感器,通常与显示记录和控制调节仪表以及计算机等配套,可直接准确地测量和控制各种生产过程中从-269～1800℃宽广范围内的液体、蒸汽、气体和固体等的温度,它们约占整个温度检测仪表70～80％。这两类产品过去多以仿制为主,没有统一的技术条件,因此给计划、生产、设计和使用等带来了很多麻烦。为了提高经济效益和“三化”,(标准化、通用化、系列化)水平,改进
At present, the temperature detection instruments at home and abroad, the most widely used or thermocouple and thermal resistance. As a temperature sensor, it is usually used in conjunction with display and control instruments, computers, etc. to directly and accurately measure and control the temperature of liquids, vapors, gases and solids in a wide range of production processes from -269 to 1800 ° C , They account for about 70 ~ 80% of the entire temperature detection instrumentation. These two types of products in the past mostly imitation, there is no uniform technical conditions, so planning, production, design and use of a lot of trouble caused. In order to improve the economic efficiency and the “three”, (standardization, universalization, serialization) level, improve