原子发射双谱线测温系统设计  

System design of temperature measurement based on double spectral lines of atomic emission spectroscopy

作　　者：刘振华[1] 郝晓剑[1] 周汉昌[1] 

机构地区：[1]中北大学电子测试技术重点实验室,太原030051

出　　处：《中国科技论文》2016年第23期2727-2730,共4页China Sciencepaper

基　　金：国家自然科学基金资助项目(61473267)

摘　　要：为了解决爆炸场反应剧烈、产生的瞬时温度高、作用时间短、环境十分恶劣,导致传统的接触式测温方法不再适用的问题,设计了1套瞬态高温测试系统,该系统基于原子发射光谱双谱线测温法的原理,利用Y型光纤,将爆炸场的光谱辐射信号传入测量系统;选用2条波长间隔小的谱线Cu I 510.5.5nm和Cu I 521.8nm,2条谱线的波长间隔小,大大减小了光谱辐射率、光谱透射率等对光谱测量的影响,提高了测温精度。实验中对热电偶测温法、比色测温法、原子发射光谱双谱线测温法进行了对比,结果表明原子发射光谱双谱线测温法测温上限高,测温精度好,相对误差小于1%。The traditional contact-type temperature measurement method is no longer applicable to these new situations of the vio-lent reactions of explosion field, the effects of the instantaneous high temperature, the short time and the bad environment nowa-days. A set of transient high temperature measured system was designed to solve the problem by applying the double line of atom-ic emission spectroscopy, which could pass explosion field spectral radiation signals to the measurement system through using the Y type optical fiber. Two spectral lines are Cu I 510. 5 nm and Cu I 521. 8 nm respectively. The effect of the spectral radiance and spectral transmissivity on the spectral measurement was decreased extremely by using two spectral lines that the interval was very small, so it can improves the precision of temperature measurement The results show that atomic emission spectrum of double line temperature measurement method possesses a high temperature limit, a precision temperature measurement, and the relative error is less than 1 % by comparing with thermocouple temperature measurement method and colorimetric temperature measure-ment method.

关 键 词：双谱线 硅光电倍增量适配电路 CUI 光谱测温 

分 类 号：TH811[机械工程—仪器科学与技术]