传感技术学报2018，Vol.31Issue(2)：195-201,7.DOI:10.3969/j.issn.1004-1699.2018.02.007
基于小型爆燃发生装置的温度传感器动态特性标定
Dynamic Characteristics Calibration of Temperature Sensor Based on Miniaturized Deflagrating Generation Equipment
摘要
Abstract
The existing temperature sensor dynamic characteristics calibration methods based on the shock tube and the hot wind tunnel have the shortcomings of large size,high cost,small temperature step amplitude or low edge slope.Aiming at these shortcomings,a novel calibration method was proposed based on the phenomenon that chemicals autocatalytic de-composition produce lots of gas transiently and diaphragm rupture generates deflagrating pulsed airflow. The corresponding miniaturized calibration equipment was designed with the advantages of high temperature step amplitude and steep step edge.Through modelling the unsteady-state heat transfer during the calibration process,the influence fac-tors of this calibration method were analyzed mathematically.The simulation results show that the time constants are neg-atively correlated with the flow velocities and positively correlated with the temperature step magnitudes. The experimental results show that this method and equipment can be used to calibrate the dynamic characteristics of the tem-perature sensors with tens of millisecond time constants.It is valuable for temperature sensor dynamic characteristics cali-bration and selection used in high pressure and strong convection field temperature measurement applications.关键词
温度传感器/动态特性标定/时间常数/自加速分解/冲击气流场Key words
temperature sensor/dynamic characteristics calibration/time constants/autocatalytic decomposition/pulsed airflow分类
信息技术与安全科学引用本文复制引用
丁炯,唐宵,杨遂军,叶树亮..基于小型爆燃发生装置的温度传感器动态特性标定[J].传感技术学报,2018,31(2):195-201,7.基金项目
浙江省自然科学基金项目(LQ15F030003,LY17F010011) （LQ15F030003,LY17F010011）
浙江省仪器科学与技术重中之重学科人才培育计划项目(JL150501) （JL150501）
