比色高温传感器参数分析及其在爆炸场中的应用  

Research on Parameters of Dynamic Colorimetric Temperature Sensor and It's Application to Fuel Air Explosion Temperature Field Detection

作　　者：李磊[1] 刘庆明[1] 汪建平[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《光谱学与光谱分析》2013年第9期2466-2471,共6页Spectroscopy and Spectral Analysis

基　　金：科技部"973"项目(2011CB706900)资助

摘　　要：基于比色测温原理,系统分析了中心波长、波长带宽、立体角等因素对仪器响应速度和测温精度的影响,确定了适用于瞬态高温测量的系统参数。提出了基于光电转换系数和工作波长上下极限的比色高温传感器响应计算方法。在优化的标定温度下,用高温黑体炉进行标定实验,通过对标定数据的分析确定了仪器实际工作参数,并对传感器温度响应进行了计算。结果表明用该方法计算得到的响应关系误差在1%以内。利用该比色高温计现场测试了燃料空气爆炸场的瞬态温度响应,得到了爆轰区温度随时间、距离的变化规律。According to the theory of colorimetric thermometry,the influences of center wavelength,wavelength bandwidth and solid angle on response speed and the precision of the sensor was analyzed systematically,and the operating parameters for transient high temperature measurement system were determined.A calculation method based on photoelectric conversion coefficient,and higher and lower operating wavelength of the colorimetric temperature sensor was given.At the optimal operating temperature,calibration experiment was conducted in a high temperature blackbody furnace.Based on the experimental results,the operating parameters of the sensor were determined and the colorimetric temperature response was calculated.The results show that the errors between the calculated response and the experiment one are less than 1%.By using the colorimetric temperature sensor,the temperature response of fuel air explosion field was detected and the variations of temperature with time and space in detonation field were obtained.

关 键 词：比色高温计 辐射测温 瞬态高温 标定实验 爆炸温度 

分 类 号：TH[机械工程] X944[环境科学与工程—安全科学]