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压力传感器激波管校准条件下的动态参数估计

李强 王中宇 王卓然 燕虎

李强, 王中宇, 王卓然, 等 . 压力传感器激波管校准条件下的动态参数估计[J]. 北京航空航天大学学报, 2015, 41(7): 1223-1230. doi: 10.13700/j.bh.1001-5965.2014.0549
引用本文: 李强, 王中宇, 王卓然, 等 . 压力传感器激波管校准条件下的动态参数估计[J]. 北京航空航天大学学报, 2015, 41(7): 1223-1230. doi: 10.13700/j.bh.1001-5965.2014.0549
LI Qiang, WANG Zhongyu, WANG Zhuoran, et al. Dynamic parameter estimation of pressure transducer in shock tube calibration test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(7): 1223-1230. doi: 10.13700/j.bh.1001-5965.2014.0549(in Chinese)
Citation: LI Qiang, WANG Zhongyu, WANG Zhuoran, et al. Dynamic parameter estimation of pressure transducer in shock tube calibration test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(7): 1223-1230. doi: 10.13700/j.bh.1001-5965.2014.0549(in Chinese)

压力传感器激波管校准条件下的动态参数估计

doi: 10.13700/j.bh.1001-5965.2014.0549
基金项目: 国防技术基础项目
详细信息
    作者简介:

    李强(1982—),男,河南新县人,博士研究生,liqiang398@163.com

    通讯作者:

    王中宇(1963—),男,河南洛阳人,教授,mewan@buaa.edu.cn,主要研究方向为光电技术及其应用、动态测量基础理论与技术.

  • 中图分类号: TB939;V19

Dynamic parameter estimation of pressure transducer in shock tube calibration test

  • 摘要: 激波管是一种关键的压力传感器动态校准装置,但是由于其输出的不稳定性,使得被校准压力传感器的输出数据常常难以直接用于动态建模,且所建模型的准确性也难以表征.提出一种用于激波管校准压力传感器的动态参数估计方法.首先使用基于信息方法处理被校准压力传感器在阶跃激励下的输出数据,得到最优估计值序列、上界序列和下界序列;然后,对所得最优估计值序列、上界序列和下界序列分别进行白化滤波和差分建模,得到最优估计模型、上界模型和下界模型;之后对各个模型进行求解,最优估计模型得出被校准压力传感器的最优特征指标,上界模型和下界模型所得结果构成最优性能指标的估计区间.选用恩德福克200系列压阻传感器进行激波管校准实验,得出时域动态指标的相对误差小于8.17%,频域动态指标相对误差小于9.15%;所有指标均100%位于求得的估计区间内.

     

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出版历程
  • 收稿日期:  2014-09-09
  • 修回日期:  2014-10-24
  • 网络出版日期:  2015-07-20

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