基于归一化标定的压电测力仪测试精度研究
作者:
作者单位:

作者简介:

通讯作者:

基金项目:

国家自然科学基金资助项目(51475078);国家重点基础研究发展计划基金资助项目(2014CB046604);航空科学基金资助项目(20131063008)

伦理声明:



Research on the Test Precision of Piezoelectric Dynamometer Based on Normalized Calibration
Author:
Ethical statement:

Affiliation:

Funding:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    分析归一化标定时,加载力偏差对压电测力仪矢量力测试精度的影响。通过对理论推导可得,归一化标定加载偏差使电荷放大器归一化灵敏度改变,并增大了横向干扰输出,导致测力仪对矢量力测量产生偏差,降低了测试精度。通过实验对小力值矢量力进行测试,调整加载杆连接方式减小加载力偏差,测力仪横向干扰降低38.8%以上,矢量力参数不确定度最多减小53.9%。

    Abstract:

    Based on the normalized calibration, the influence of the piezoelectric dynamometer load deviation on the test precision of the vector force is analyzed. The theoretical derivation results show that the normalized calibration load deviation changes the sensitivity of charge amplifier and increases the output of transverse interference, resulting in measuring deviations of vector force and lower test precision. Through experiments on a small force to test the value of the vector force by adjusting the loading lever to reduce the loading force deviation, the dynamometer horizontal interference is reduced by more than 38.8%; the vector force parameter uncertainty of the measured is decreased by 53.9%. A comprehensive theoretical analysis and experimental analysis show that the piezoelectric dynamometer calibration normalized load should minimize or eliminate deviation in order to improve test accuracy.

    参考文献
    相似文献
    引证文献
引用本文

张军,史乃青,钱敏,辛学亭.基于归一化标定的压电测力仪测试精度研究[J].压电与声光,2016,38(1):46-50. ZHANG Jun, SHI Naiqing, QIAN Min, XIN Xueting. Research on the Test Precision of Piezoelectric Dynamometer Based on Normalized Calibration[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2016-02-25
  • 出版日期: