[1]杨 凡,孔德仁,姜 波,等.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(03):330.[doi:10.14177/j.cnki.32-1397n.2017.41.03.009]
 Yang Fan,Kong Deren,Jiang Bo,et al.Dynamic characteristic of shock wave pressure sensorbased on shock tube calibration[J].Journal of Nanjing University of Science and Technology,2017,41(03):330.[doi:10.14177/j.cnki.32-1397n.2017.41.03.009]
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基于激波管校准的冲击波压力传感器动态特性研究()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
41卷
期数:
2017年03期
页码:
330
栏目:
出版日期:
2017-06-30

文章信息/Info

Title:
Dynamic characteristic of shock wave pressure sensorbased on shock tube calibration
文章编号:
1005-9830(2017)03-0330-07
作者:
杨 凡1孔德仁1姜 波2孔 霖3王 芳1
1.南京理工大学 机械工程学院,江苏 南京 210094; 2.北方华安工业集团公司,黑龙江 齐齐哈尔 161000; 3.西安近代化学研究所,陕西 西安 710065
Author(s):
Yang Fan1Kong Deren1Jiang Bo2Kong Lin3Wang Fang1
1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.Northern HuaAn Industrial Group Co.,Ltd.,Qiqihaer 161000,China; 3.Xi’an Modern Chemistry Research Institute,Xi’an 710065,China
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
Keywords:
shock tubes calibration shock wave pressure sensors dynamic characteristics ideal step decomposition method low-order model decomposition method differential method
分类号:
TP212
DOI:
10.14177/j.cnki.32-1397n.2017.41.03.009
摘要:
为对冲击波压力传感器进行校准,研究传感器动态特性非参数模型。基于双膜激波管对传感器实施动态校准试验,获得了阶跃响应输出。仿真模拟四阶串联系统,并构造阶跃响应信号。分别使用理想阶跃分解法、低阶模型分解法和微分法得到传感器动态特性非参数模型。微分法计算精度更高且简单易行。为抑制寄生效应,采用机械结构对冲击波压力传感器进行改造。采用微分法对改造前后的典型冲击波压力传感器动态特性进行了研究。仿真结果表明,改造措施虽然可以减小机械振动与冲击和热效应,但使得冲击波压力传感器工作频带变窄,无法满足工程测试无失真条件。
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.

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备注/Memo

备注/Memo:
收稿日期:2016-04-14 修回日期:2016-12-03
基金项目:国家自然科学基金(11372143); 国家计量课题基础技术项目(J092013B003)
作者简介:杨凡(1992-),女,博士生,主要研究方向:测试计量技术,E-mail:yangfan_njust@163.com; 通讯作者:孔德仁(1964-),男,博士,教授,主要研究方向:测试计量技术及仪器,E-mail:derenkongnj@sina.com。
引文格式:杨凡,孔德仁,姜波,等.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,2017,41(3):330-336.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2017-06-30