发明授权
US08321176B2 Method for determining a twist angle 失效
确定扭转角的方法

  • 专利标题: Method for determining a twist angle
  • 专利标题(中): 确定扭转角的方法
  • 申请号: US12865211
    申请日: 2009-01-28
  • 公开(公告)号: US08321176B2
    公开(公告)日: 2012-11-27
  • 发明人: Martin Hempl
  • 申请人: Martin Hempl
  • 申请人地址: DE München
  • 专利权人: Siemens Aktiengesellschaft
  • 当前专利权人: Siemens Aktiengesellschaft
  • 当前专利权人地址: DE München
  • 优先权: DE102008007372 20080201
  • 国际申请: PCT/EP2009/050930 WO 20090128
  • 国际公布: WO2009/095398 WO 20090806
  • 主分类号: G06F15/00
  • IPC分类号: G06F15/00 G01B7/30
Method for determining a twist angle
摘要:
A method for determining an angle between a first shaft section and a second shaft section is provided. The 0° position of the first shaft section is determined by a first shaft signal, and the 0° position of the second shaft section is determined by a second shaft signal. The first shaft signal and the second shaft signal are subsequently each decomposed using Fourier analysis into frequency components of harmonic oscillations, wherein frequencies are calculated for the first shaft signal, and frequencies are calculated for the second shaft signal. The frequencies are each calculated as complex pointers from absolute value and phase of the order thereof wherein each pointer describes the angular velocity of the particular frequency. For each frequency, the particular angle of the complex number is then divided by the order, wherein standardized complex pointers are calculated. The standardized complex pointers are added complexly.
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