发明公开
- 专利标题: FREQUENCY READOUT GYROSCOPE
- 专利标题(中): FREQUENZAUSLESEGYROSKOP
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申请号: EP13863507申请日: 2013-12-12
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公开(公告)号: EP2932192A4公开(公告)日: 2016-08-10
- 发明人: IZYUMIN IGOR , BOSER BERNHARD E , KLINE MITCHELL H
- 申请人: UNIV CALIFORNIA
- 专利权人: UNIV CALIFORNIA
- 当前专利权人: UNIV CALIFORNIA
- 优先权: US201261736040 2012-12-12; US201361767643 2013-02-21
- 主分类号: G01C19/56
- IPC分类号: G01C19/56 ; G01C19/5755 ; G01C19/5776
摘要:
A frequency readout gyroscope is provided, having 2 or 3 axes, in which the frequency of the carrier associated with the oscillation of the proof mass changes while the amplitude stays constant. The invention departs from conventional gyroscopes which rely on measuring transducer sense axis displacement (amplitude modulation) to determine angular input rate. The invention utilizes what could be termed a form of frequency modulation, such as evaluating frequency phase difference between the axes of modulation. Examples include gyroscopes having either a quadrature or Lissajous FM mode of operation, in which angle random walk contribution from the electronics is reduced by approximately two orders of magnitude.
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