戈登式辐射热流传感器动态特性测试技术  

Dynamic Measurement Technology of Gardon Heat-Flux Gauges

作　　者：师钰璋 王高[1,2] 李志玲 张梅菊[3,4] 黄漫国 梁晓波[3,4] SHI Yuzhang;WANG Gao;LI Zhiling;ZHANG Meiju;HUANG Manguo;LIANG Xiaobo(School of information and communication engineering,North university of China,Taiyuan Shanxi 030051,China;Key Laboratory of Instrumentation Science&Dynamic Measurement of Ministry of Education,North University of China,Taiyuan Shanxi 030051,China;Beijing Changcheng Aeronautic Measurement and Control Technology Research Institute,Beijing 100022,China;Key Laboratory of Science and Technology on Special Condition Monitoring Sensor Technology,Beijing 100022,China)

机构地区：[1]中北大学信息与通信工程学院,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [3]北京长城航空测控技术研究所,北京100022 [4]状态监测特种传感技术航空科技重点实验室,北京100022

出　　处：《传感技术学报》2021年第5期575-580,共6页Chinese Journal of Sensors and Actuators

基　　金：山西省回国留学人员科研项目(2014054);总装基础研究项目(6132410201);国家自然基金项目(61573323);山西应用基础研究项目(201701D121061)。

摘　　要：高速热流传感器广泛用于航空、航天、爆炸场等领域的热流密度测试,时间常数为传感器重要动态特性参数之一。传统测试方法仅能测试时间常数几百毫秒的热流传感器,无法满足未来高速热流传感器的测试需求。系统采用光纤输出半导体激光器作为辐射热流源,输出阶跃辐射信号通过微透镜光斑均匀化光学系统作用于高速Gardon计敏感面,利用信号调理电路和采集系统实现热流计输出信号的高速采集。系统响应时间为μs级,能够产生MW/m2级热流信号。完成了GD-B4-50K、GD-B4-200K和GD-D0-5M三种型号的辐射热流传感器动态测试,测得时间常数分别为0.199 s、0.521 s、0.052 s。可以有效解决航空飞行、航天再入等领域的辐射热流传感器测试难题。The heat flux is measured widely using the high speed heat-flux gauges in aviation, aerospace and other fields. The traditional methods are suitable for the heat-flux gauges with a time constant of several hundred milliseconds, which cannot meet the requirements of the high speed heat-flux gauges in the future. The optical fiber output semiconductor lasers are used as the radiation heat flux source in the system. The step radiation signal acts on the sensitive surface of high speed Gardon gauges through the micro-lens array beam homogenization optical system. And the output signal is acquired rapidly using conditioning circuit and the acquisition system. A few megawatts heat flux can be produced by the system with the response time of several milliseconds. Three types of GD-B4-50 K,GD-B4-200 K and GD-D0-5 M heat-flux gauges are calibrated using the system. The time constants are 0.199 s, 0.521 s and 0.052 s respectively. The problems of the measurement of radiant heat-flux gauges can be solved effectively in aviation, aerospace reentry and other fields.

关 键 词：动态测试技术 动态测试 光纤输出半导体激光器 Gardon计 时间常数 

分 类 号：TH89[机械工程—仪器科学与技术] V19[机械工程—精密仪器及机械]