Invention Grant
US08413508B2 Method for measuring an acceleration using a piezoelectric vibrating accelerometer 有权
使用压电振动加速度计测量加速度的方法

  • Patent Title: Method for measuring an acceleration using a piezoelectric vibrating accelerometer
  • Patent Title (中): 使用压电振动加速度计测量加速度的方法
  • Application No.: US12669319
    Application Date: 2008-07-16
  • Publication No.: US08413508B2
    Publication Date: 2013-04-09
  • Inventor: Pierre Loisel
  • Applicant: Pierre Loisel
  • Applicant Address: FR Paris
  • Assignee: Sagem Defense Securite
  • Current Assignee: Sagem Defense Securite
  • Current Assignee Address: FR Paris
  • Agency: Muncy, Geissler, Olds & Lowe, PLLC
  • Priority: FR0705220 20070719
  • International Application: PCT/FR2008/001039 WO 20080716
  • International Announcement: WO2009/030829 WO 20090312
  • Main IPC: G01P15/097
  • IPC: G01P15/097
Method for measuring an acceleration using a piezoelectric vibrating accelerometer
Abstract:
The invention provides a method of measuring an acceleration by means of a vibrating accelerometer including a piezoelectric vibrating cell, the method having the steps: of exciting the vibration cell by means of an excitation signal at a resonant frequency of the vibrating cell; of calculating an acceleration value from a detection signal that results from the excitation signal; of exciting the vibrating cell with a correction excitation signal at a correction frequency that is different from the resonant frequency; of extracting a correction signal from the detection signal, the correction being representative of an electrical characteristic that is to be corrected; and of combining the correction signal with the detection signal so as to reduce the electrical characteristic that is to be corrected.
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