A kind of multi-target multi-spectral thermometer has been developed to be used in large explosive environment. At the moment of explosion, the thermometer simultaneously collects explosion flame radiation energy under different spectra after the lights go through the prism spectrometer. The second measurment method was used to calculate true temperature and emissivity of the explosion flame. The fiber-optic long-distance transmission technique and fiber coupling technique were used for the first time in optical system design, which largely solves the problems of anti-vibration, anti-explosion and anti-electromagnetic interference for the core of the instrument. The high-speed acquisition system and multi-stage amplification system were used to realize instaneous collection of the rapidly changing explosion flame temperature. The wireless long-distance transmission was used to ensure the staff safety.%研制了一种可用于大型爆炸现场的、测量爆炸火焰真温的多目标多光谱温度计.此温度计在爆炸的瞬间,同时对棱镜分光后的多个光谱带下的爆炸火焰辐射能量进行采集,利用二次测量法得出爆炸火焰的真温及发射率.在光路中采用了光纤远传技术和光纤耦合技术,极大程度上解决了仪器核心部分的防震、防爆、防电磁干扰的问题.采用高速采集和多级放大解决了爆炸时间短、温度变化剧烈、信号难于采集的问题,同时采用无线远传的结构保证了工作人员的安全.
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