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一、前言示温涂料是一种在特定温度下,以呈明显变色的化合物为颜料、可用于测定温度的特种涂料。测定温室的仪器有利用气体、液体或固体热膨胀的温度计(压力温度计、装入液体的玻璃温度计及双金属温度计等)、热电偶温度计、电阻温度计、光学高温计及比色温度计等多种,但是,当要测定固体的表面温度或温度分布、机器内部的温度及旋转体的温度时,光靠这些仪器是很难完成的,有时甚至完全不可能。
First, the preface that temperature coating is a particular temperature, with significant discoloration of the compound as a pigment, can be used to determine the temperature of the special coatings. Instruments for measuring greenhouse There are many kinds of thermometers (pressure thermometers, liquid glass thermometers and bimetallic thermometers), thermocouple thermometers, resistance thermometers, optical pyrometers and colorimetric thermometers that use thermal expansion of gases, liquids or solids, but It is difficult and sometimes impossible to rely solely on these instruments when determining the surface temperature or temperature distribution of solids, the temperature inside the machine, and the temperature of the rotating body.