公开(公告)号：EP2932192A4

公开(公告)日：2016-08-10

申请号：EP13863507

申请日：2013-12-12

申请人： UNIV CALIFORNIA

发明人： IZYUMIN IGOR ,  BOSER BERNHARD E ,  KLINE MITCHELL H

IPC分类号： G01C19/56 ,  G01C19/5755 ,  G01C19/5776

CPC分类号： G01C19/5776 ,  G01C19/5755 ,  G01D5/243

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.

摘要翻译： 提供了具有2或3轴的频率读出陀螺仪，其中与振动的振荡相关联的载体的频率在振幅保持恒定的同时变化。 本发明离开常规陀螺仪，其依赖于测量换能器感测轴位移（幅度调制）以确定角度输入速率。 本发明利用可以被称为频率调制的形式，例如评估调制轴之间的频率相位差。 示例包括具有正交或者李萨如FM操作模式的陀螺仪，其中来自电子装置的角度随机游走贡献减少了大约两个数量级。