公开(公告)号：EP1425554A1

公开(公告)日：2004-06-09

申请号：EP02758565.2

申请日：2002-09-06

Applicant: BAE Systems PLC

Inventor： FELL, Christopher Paul ,  ELEY, Rebecka ,  FOX, Colin, Henry John ,  McWILLIAM, Stewart

IPC: G01C19/56

CPC classification number: G01C19/5684

Abstract: A three axis sensor including a substantially planar vibrator resonator (2) having a substantially ring or hoop like structure, drive means (4) for causing the resonator (2) to vibrate in an in plane cos2θ vibration mode, carrier mode pick-off means (5) for sensing movement of the resonator in response to said drive means, pick-off means (6) for sensing in plane sin2υ resonator motion induced by rotation about the z-axis, drive means (7) for nulling said motion, pick-off means (8) for sensing out of plane sin3υ resonator motion induced by rotation about the x-axis, drive means (9) for nulling said motion, pick-off means (10) for sensing out of plane cos3υ resonator motion induced by rotation about the y-axis, drive means (11) for nulling said motion, and support means (9) for flexibly supporting the resonator, wherein the support means comprises only L support beams, where L≠2Jx3K and J=0,1 or 2 and K=0 or 1 with L>24.

Abstract translation: 一种三轴传感器，包括具有基本上环形或环状结构的基本上平面的振动器谐振器（2），用于使谐振器（2）在平面内cos2θ振动模式下振动的驱动装置（4），载体模式拾取装置 （5），用于响应于所述驱动装置而感测谐振器的运动;拾取装置（6），用于感测绕z轴旋转引起的谐振器运动中的平面;驱动装置（7），用于使所述运动无效;拾取装置 - 用于检测由围绕x轴旋转引起的共振器运动的平面外的平面外的偏离装置（8），用于使所述运动零化的驱动装置（9），用于检测由平面外的共振器运动的离开装置（10） 绕y轴旋转，用于使所述运动无效的驱动装置（11），以及用于柔性地支撑谐振器的支撑装置（9），其中支撑装置仅包括L个支撑梁，其中L≠2J×3K且J = 0,1或 2且K = 0或1且L> 24。