南京理工大学学报（自然科学版）2017，Vol.41Issue(3)：330-336,7.DOI:10.14177/j.cnki.32-1397n.2017.41.03.009
基于激波管校准的冲击波压力传感器动态特性研究
Dynamic characteristic of shock wave pressure sensor based on shock tube calibration
摘要
Abstract
Dynamic characteristic non-parameter models are researched to calibrate shock wave pressure sensors.Outputs of step responses are obtained through dynamic calibration experiments using a double film shock tube.A four-step series system is simulated,and step response signals are constructed.Three dynamic characteristic non-parameter models are obtained using the ideal step decomposition method,the low-order model decomposition method and the differential method distinguishly.The differential method is more accurate and simpler.A shock wave pressure sensor is transformed using a machine to restrain parasitic effects.The dynamic characteristics of the shock wave pressure sensor before and after the transformation are calculated and compared using the differential method.The simulation results show that although the transformation can decrease thermal effects and mechanical vibration and shock,but the sensor bandwidth is narrowed,and the sensor cannot meet the without distortion conditions of engineering test.关键词
激波管/校准/冲击波压力传感器/动态特性/理想阶跃分解法/低阶模型分解法/微分法Key words
shock tubes/calibration/shock wave pressure sensors/dynamic characteristics/ideal step decomposition method/low-order model decomposition method/differential method分类
信息技术与安全科学引用本文复制引用
杨凡,孔德仁,姜波,孔霖,王芳..基于激波管校准的冲击波压力传感器动态特性研究[J].南京理工大学学报（自然科学版）,2017,41(3):330-336,7.基金项目
国家自然科学基金(11372143) （11372143）
国家计量课题基础技术项目(J092013B003) （J092013B003）
