一、引 言 使用化学燃料的各类发动机、高温化工反应及冶炼过程、磁流体发电、等离子体切割、喷镀、挖隧道、模拟卫星返回大气和某些物理现象的研究,如激波、爆轰波等,均提出了火焰及高温气体的温度测量.传统的热电偶直接测量法,使用时受一些条件的限制,不能超过材料的熔点温度 I. Introduction Various types of engines using chemical fuels, high-temperature chemical reactions and smelting processes, magnetic fluid power generation, plasma cutting, thermal spraying, tunnel digging, simulation of satellite return to the atmosphere and some physical phenomena such as shock waves, detonation Wave, etc., have put forward the flame and high temperature gas temperature measurement. The traditional direct measurement of thermocouple, when used by a number of conditions, can not exceed the material’s melting point temperature