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公开(公告)号：US06327908B1
公开(公告)日：2001-12-11
申请号：US09413243
申请日：1999-10-07
IPC分类号： G01P904
CPC分类号： G01C19/5607
摘要： The shape of drive electrodes and/or the shape of detection electrodes of a tuning fork type vibration gyro are made asymmetrical between the inside and outside of the arm, and between the surface and reverse face of the arm, to reduce the abnormal vibration and leaking output. The drive electrodes to be provided on the inside parts of the surface and reverse face of the first arm are formed smaller than the drive electrodes to be provided on the outside parts of the surface and reverse face thereof. The length of the detection electrode to be provided on the outside lateral face of the second arm is formed short. The drive electrodes to be provided on the surface and reverse face of the first arm are extended to the base side from the boundary position between the first arm and the base, and the detection electrodes to be provided on the surface and reverse face of the second arm are extended to the base side from the boundary position between the second arm and the base.
摘要翻译： 音叉型振动陀螺仪的驱动电极形状和/或检测电极的形状在臂的内部和外部以及臂的表面和反面之间形成不对称，以减少异常振动和泄漏 输出。 设置在第一臂的表面和反面的内侧部分上的驱动电极形成为比设置在其表面和反面的外侧部分上的驱动电极小。 设置在第二臂的外侧面上的检测电极的长度短。 设置在第一臂的表面和反面上的驱动电极从第一臂和基座之间的边界位置延伸到基底侧，并且将检测电极设置在第二臂的第二面的表面和反面上 臂从第二臂和基座之间的边界位置延伸到基部侧。
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公开(公告)号：US6105426A
公开(公告)日：2000-08-22
申请号：US66904
申请日：1998-04-28
IPC分类号： G01C19/56 , G01C19/5607 , G01C19/00
CPC分类号： G01C19/5607
摘要： In a tuning fork type vibration element provided in a tuning fork type vibration gyro, the sum of inertial moments of a base to an inertial moment of two arms is 1.0 or larger. The inertial moment of the two arms is obtained by multiplying the square of a rotation radius, which is a distance from a center axis of torsional vibration as a center position between the two arms to a center of gravity of the two arms with a mass of the two arms, and the inertial moment of the base is obtained by multiplying the square of the rotation radius from the center axis of the same torsional vibration.
摘要翻译： 在音叉式振动陀螺仪中设置的音叉型振动元件中，基座与两臂的惯性矩的惯性力矩之和为1.0以上。 通过将作为两臂之间的中心位置的扭转振动的中心轴的距离的旋转半径的平方乘以两臂的重心，将质量的 通过将相同扭转振动的中心轴的旋转半径的平方相乘来获得基座的惯性力矩。
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公开(公告)号：US06366005B2
公开(公告)日：2002-04-02
申请号：US09747798
申请日：2000-12-22
IPC分类号： G01C1956
CPC分类号： G01C19/5607
摘要： A tuning fork type vibrator including two arms and a base is supported by a supporting substrate mounted on a stem, and an oscillation limiting member formed from a ring-shaped rubber-like elastic body is mounted with its one face secured to the stem so as to surround the base. When an external vibration or impact is applied, the tuning fork type vibrator oscillates in response to the vibration or impact, but the oscillation range of the tuning fork type vibrator is limited by the presence of this oscillation limiting member, and thus bumping of the tuning fork type vibrator against the surrounding members such as the stem is prevented. Moreover, a gyro characteristic is not impaired, and a loss of the gyro function due to a stop of drive vibration does not occur.
摘要翻译： 包括两个臂和一个基座的音叉型振动器由安装在杆上的支撑基板支撑，并且由环形橡胶状弹性体形成的振动限制构件安装成其一个面固定到杆上，以便 围绕基地。 当施加外部振动或冲击时，音叉型振动器响应于振动或冲击而振荡，但是音叉式振动器的振荡范围受到该振动限制构件的存在的限制，因此调谐 防止叉形振动器抵靠诸如杆的周围构件。 此外，陀螺特性不受损害，并且不会发生由于驱动振动的停止引起的陀螺功能的损失。
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公开(公告)号：US5996410A
公开(公告)日：1999-12-07
申请号：US13942
申请日：1998-01-27
IPC分类号： G01C19/56 , G01C19/5607 , G01C19/00
CPC分类号： G01C19/5607
摘要： The shape of drive electrodes and/or the shape of detection electrodes of a tuning fork type vibration gyro are made asymmetrical between the inside and outside of the arm, and between the surface and reverse face of the arm, to reduce the abnormal vibration and leaking output. The drive electrodes to be provided on the inside parts of the surface and reverse face of the first arm are formed smaller than the drive electrodes to be provided on the outside parts of the surface and reverse face thereof. The length of the detection electrode to be provided on the outside lateral face of the second arm is formed short. The drive electrodes to be provided on the surface and reverse face of the first arm are extended to the base side from the boundary position between the first arm and the base, and the detection electrodes to be provided on the surface and reverse face of the second arm are extended to the base side from the boundary position between the second arm and the base.
摘要翻译： 音叉型振动陀螺仪的驱动电极形状和/或检测电极的形状在臂的内部和外部以及臂的表面和反面之间形成不对称，以减少异常振动和泄漏 输出。 设置在第一臂的表面和反面的内侧部分上的驱动电极形成为比设置在其表面和反面的外侧部分上的驱动电极小。 设置在第二臂的外侧面上的检测电极的长度短。 设置在第一臂的表面和反面上的驱动电极从第一臂和基座之间的边界位置延伸到基底侧，并且将检测电极设置在第二臂的第二面的表面和反面上 臂从第二臂和基座之间的边界位置延伸到基部侧。
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公开(公告)号：US06931927B2
公开(公告)日：2005-08-23
申请号：US10625568
申请日：2003-07-24
CPC分类号： G01C19/5607
摘要： A tuning-fork vibration gyro including a ferroelectric tuning-fork vibration body generating a plurality of sensor signals and a sensor circuit to which the sensor signals generated by the tuning-fork vibration body are input. The sensor circuit includes a differential amplifier having two input terminals between which the sensor signals are input, and a capacitor being connected between the two input terminals of the differential amplifier.
摘要翻译： 包括产生多个传感器信号的铁电音叉振动体和由音叉振动体产生的传感器信号的传感器电路的音叉振动陀螺仪。 传感器电路包括差分放大器，其中输入有传感器信号的两个输入端子和连接在差分放大器的两个输入端子之间的电容器。
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公开(公告)号：US06647786B2
公开(公告)日：2003-11-18
申请号：US09930147
申请日：2001-08-16
IPC分类号： G01C1900
CPC分类号： G01C19/5607
摘要： A tuning-fork type vibration gyro enables to suppress pyroelectric noise caused by temperature change and to obtain sensor output having high signal-to-noise ratio. The tuning-fork type vibration gyro includes a tuning-fork type vibration body having two arms mutually disposed in parallel and a base for commonly supporting one end of the each arm, wherein a longitudinal direction of the two arms is defined as a z-axis and a perpendicular direction thereto is defined as an x-axis; driving electrodes respectively formed on the two arms for generating vibration of the two arms in a direction parallel to the x-axis; detecting electrodes respectively formed on the two arms for detecting electromotive force generated when the tuning-fork type vibration body is rotated around the z-axis; and dummy electrodes formed on the two arms in respective areas different from the driving electrodes and the detecting electrodes.
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7.发明申请公开(公告)号：US20050217376A1
公开(公告)日：2005-10-06
申请号：US11139509
申请日：2005-05-31
CPC分类号： G01C19/5607
摘要： A tuning-fork type vibration gyro enables to suppress pyroelectric noise caused by temperature change and to obtain sensor output having high signal-to-noise ratio. The tuning-fork type vibration gyro includes a tuning-fork type vibration body having two arms mutually disposed in parallel and a base for commonly supporting one end of the each arm, wherein a longitudinal direction of the two arms is defined as a z-axis and a perpendicular direction thereto is defined as an x-axis; driving electrodes respectively formed on the two arms for generating vibration of the two arms in a direction parallel to the x-axis; detecting electrodes respectively formed on the two arms for detecting electromotive force generated when the tuning-fork type vibration body is rotated around the z-axis; and dummy electrodes formed on the two arms in respective areas different from the driving electrodes and the detecting electrodes.
摘要翻译： 音叉型振动陀螺仪能够抑制由温度变化引起的热电噪声，并获得具有高信噪比的传感器输出。 音叉式振动陀螺仪包括具有平行支撑的两个臂的音叉型振动体和用于共同支撑每个臂的一端的基座，其中两个臂的纵向方向被定义为z轴 并且其垂直方向被定义为x轴; 分别形成在两个臂上的驱动电极，用于在平行于x轴的方向上产生两个臂的振动; 分别形成在两个臂上的检测电极，用于检测音叉型振动体围绕z轴旋转时产生的电动势; 以及形成在与驱动电极和检测电极不同的各个区域中的两个臂上的虚拟电极。
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