English

应用科学学报 ›› 1999, Vol. 17 ›› Issue (4): 457-462.

• 论文 • 上一篇    下一篇

传感器非线性传递函数的频域估计

徐科军, 李成   

  1. 合肥工业大学
  • 收稿日期:1998-05-28 修回日期:1998-09-17 出版日期:1999-12-31 发布日期:1999-12-31
  • 基金资助:
    国家自然科学基金、机械部高校跨世纪优秀人才专项基金、安徽省自然科学基金资助项目

An Estimation of Nonlinear Transfer Function for Wrist Force Sensor in Frequency Domain

XU KEJUN, LI CHENG   

  1. Hefei University of Technology, Hefei 230009
  • Received:1998-05-28 Revised:1998-09-17 Online:1999-12-31 Published:1999-12-31

PDF

88

被引次数

13

摘要： 在频域研究腕力传感器的动态非线性特性,分析动态非线性产生的原因,研究时域和频域的判定方法.估计传感器线性和二次非线性传递函数,研究非高斯信号输入时二次传递函数的求解方法,探讨动态非线性主要作用频带的判定方法.分别对构造系统仿真和对实验数据分析,结果表明,非线性分析方法更为准确地描述了传感器的动态特性.

关键词: 腕力传感器, 动态非线性, 频域估计, 二次传递函数

Abstract: This paper investigates the dynamic nonlinear characteristic of wrist force sensor in the frequency domain.The reasons for dynamic nonlinearity are analyzed,and the determining methods of time and frequency domain are studied.The sensor's transfer functions of linear and nonlinear are estimated.When input is non-Gaussian signal, the solution of quadratic nonlinear transfer function is presented.The determining method of main nonlinear frequency range is discussed.The constructed system is simulated,and the experimental data are analyzed.The results indicate that the nonlinear analyzing method can describe the sensor's dynamic characteristic more accurately.

Key words: wrist force sensor, quadratic transfer function, estimation of frequency domain, dynamic nonlinearity