Microelectromechanical gyroscopes and related apparatus and methods
    9.
    发明授权
    Microelectromechanical gyroscopes and related apparatus and methods 有权
    微机电陀螺仪及相关设备及方法

    公开(公告)号:US08661899B2

    公开(公告)日:2014-03-04

    申请号:US13038000

    申请日:2011-03-01

    IPC分类号: G01C19/56

    CPC分类号: G01C19/56 G01C19/5712

    摘要: An apparatus is described that includes a substrate having a first plate and a second plate. The first plate and the second plate collectively have a first mode when excited by a drive signal and have a second mode when excited by a gyroscopic effect. The first and second plates each include a temperature-compensated stack having first and third layers that have a stiffness that increases with increasing temperature over a temperature range with a second layer between the first and third layers, where the second layer is formed from a different material than the first and third layers.

    摘要翻译: 描述了一种包括具有第一板和第二板的基板的装置。 当由驱动信号激励时,第一板和第二板共同具有第一模式,并且当由陀螺效应激励时具有第二模式。 第一和第二板各自包括温度补偿堆叠,其具有第一和第三层,其具有在温度范围内随着温度升高而增加的刚度,第一和第三层之间的第二层在第一和第三层之间,其中第二层由不同的 材料比第一和第三层。