光纤式20波长辐射高温计的研制  

Development of Optical Fiber Twenty-Spectral Radiation Pyrometer

作　　者：辛春锁[1] 戴景民[1] 王英力[1] 

机构地区：[1]哈尔滨工业大学自动检测与过程控制系统研究所,黑龙江哈尔滨150001

出　　处：《红外技术》2008年第1期47-50,共4页Infrared Technology

基　　金：航天材料及工艺研究所专项基金

摘　　要：基于多光谱辐射测温理论,研制了20波长光纤辐射高温计。利用多光谱辐射测温法获得材料在多个光谱下的辐射信息,从而计算出试样的真温和在多个光谱下的法向光谱发射率。利用光学光纤将光学探头接收到的光信号进行远距离传输,增加了测量的便利性和整套装置对测量环境的适应能力;精密的多量程自动切换电路扩大了温度测量范围,并降低了环境噪声对测量结果的影响;专用的微型工控机控制系统提高了这套装置独自工作及与其它设备进行协调合作的能力。整套装置可测量的温度范围是800～3500℃,测量精度小于1%。Based on the multi-spectral temperature measurement theory, a twenty-wavelength optical fiber radiation thermometer is developed. The true temperature and the multi-wavelength normal spectral emissivity of the specimen are measured by a multi-wavelength pyrometer. It transfers optical signal from optical detectors through optical fiber, and this design can enhance convenience for measurement and flexibility for rigorous environment. Rigid design of automatic conversion circuit extends temperature range, and improves precision at the same time. With a mini-controller, it realizes auto-operation and cooperation with other devices. The system＇s measured temperature range is from 800 to 3500℃, and corresponding accuracy is less then 1%.

关 键 词：多光谱测温 真温 发射率 

分 类 号：TH811.2[机械工程—仪器科学与技术]