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    • 15. 发明授权
    • Device for generating a signal representative of the position of an
angularly or linearly moveable member
    • 用于产生代表角度或线性可移动构件的位置的信号的装置
    • US5444613A
    • 1995-08-22
    • US224395
    • 1994-04-07
    • Makoto TaniTakashi Nishijima
    • Makoto TaniTakashi Nishijima
    • G01D5/249G05B19/10H03M1/28G05B19/18G05B1/06H03M1/22
    • G01D5/2495G05B19/106H03M1/282G05B2219/23062G05B2219/23199G05B2219/25338
    • A digital position signal generator suitable for gain control and other purposes. A typical embodiment includes a rotary disk notionally divided into a plurality of sectors of the same angle about the disk axis. Some of the disk sectors have radial extensions which are detectable by photocouplers. The photocouplers are fixedly disposed about the disk axis with angular spacings each greater than the angle of each disk sector. Thus, with the rotation of the disk, the photocouplers produce binary zero and one outputs in various predetermined combinations nonsequentially representing successive predetermined angular positions of the disk. A position data generator circuit such as a microcomputer is provided which has stored thereon meaningful position data sequentially representing the successive predetermined angular positions of the disk. Inputting each output combination of the detectors, the position data generator circuit puts out a corresponding one of the meaningful position data. Several other embodiments are disclosed.
    • 适用于增益控制和其他目的的数字位置信号发生器。 一个典型的实施例包括一个旋转盘,它被轮廓地划分成围绕盘轴的相同角度的多个扇区。 一些磁盘扇区具有可由光电耦合器检测的径向延伸。 光电耦合器围绕盘轴固定设置,角度间隔大于每个磁盘扇区的角度。 因此,随着盘的旋转,光电耦合器以不同的预定组合产生二进制零和一个输出,这些组合不随后地表示盘的连续的预定角位置。 提供诸如微计算机的位置数据发生器电路,其中存储有依次表示盘的连续预定角位置的有意义的位置数据。 输入检测器的每个输出组合,位置数据发生器电路输出相应的一个有意义的位置数据。 公开了几个其它实施例。
    • 16. 发明授权
    • Piezoelectric actuator and piezoelectric actuator array
    • 压电致动器和压电致动器阵列
    • US08575821B2
    • 2013-11-05
    • US13408253
    • 2012-02-29
    • Makoto Tani
    • Makoto Tani
    • H01L41/08
    • H02N2/14G02B26/0858H02N2/004H02N2/103
    • A piezoelectric actuator 10 according to each embodiment of the present invention comprises: a column-like piezoelectric body 31, whose bottom face is fixed to a base portion 20, and which stands from the base portion; and a driving power supply section for applying a driving voltage to the piezoelectric body. The piezoelectric body includes two sets (32, 33) of a pair of electrodes for providing electrical fields to the piezoelectric body. The two sets are formed so that each of the two sets is provided to each of two regions into which the piezoelectric body is divided by a virtual plane VPL1 parallel to the center axis CL of the piezoelectric body. The driving power supply section applies the driving voltage Vin having a “frequency between the second-order bending resonant frequency and the first-order expansion-contraction resonant frequency” to either one of the two sets, selectively.
    • 根据本发明的每个实施例的压电致动器10包括:柱状压电体31,其底面固定到基部20,并且从基部支撑; 以及用于向压电体施加驱动电压的驱动电源部。 压电体包括用于向压电体提供电场的一对电极的两组(32,33)。 两组被形成为使得两组中的每一个被设置到两个区域中,压电体被平行于压电体的中心轴线CL的虚拟平面VPL1划分成两个区域。 驱动电源部分选择性地将具有“二阶弯曲共振频率与一阶扩展 - 收缩共振频率之间的频率”的驱动电压Vin施加到两组之一。
    • 17. 发明申请
    • ELECTRONIC DEVICE
    • 电子设备
    • US20110266922A1
    • 2011-11-03
    • US13069579
    • 2011-03-23
    • Masayuki UetaniMakoto Tani
    • Masayuki UetaniMakoto Tani
    • H01L41/083
    • H01L41/083H01L41/0533H01L41/313
    • An electronic device 10 includes a layered piezoelectric element 20 and a driven member 30. The driven member 30 is bonded to the top surface 20a of the layered piezoelectric element 20 by means of an epoxy resin adhesive S. The piezoelectric element 20 includes a side electrode 24 on one side surface of the element, which is one of the outer surfaces of the element 20. The piezoelectric element 20 includes, in the vicinity of the upper end portion of the side surface, a dam portion 28 formed of a material for preventing epoxy bleed out of the adhesive S. Therefore, even when the epoxy bleed out of the adhesive S occurs, a bled-out portion of the components of the adhesive S does not reach the side electrode 24. Thus, when the side electrode is connected to an external circuit by, for example, soldering, reduction in the connection strength or similar problems can be avoided.
    • 电子装置10包括分层压电元件20和从动构件30.从动构件30通过环氧树脂粘合剂S结合到层状压电元件20的顶表面20a。压电元件20包括侧电极 24是在元件20的外表面之一的元件的一个侧表面上。压电元件20在侧表面的上端部附近包括由防止材料形成的阻挡部28 环氧树脂从粘合剂S中渗出。因此,即使发生粘合剂S中的环氧树脂渗出,粘合剂S的组分的排出部分也不会到达侧面电极24.因此,当侧面电极连接 通过例如焊接到外部电路,可以避免连接强度的降低或类似的问题。
    • 20. 发明授权
    • Vibratory gyroscopes and method for manufacturing the same
    • 振动陀螺仪及其制造方法
    • US06389897B1
    • 2002-05-21
    • US09504181
    • 2000-02-15
    • Makoto TaniTakayuki Kikuchi
    • Makoto TaniTakayuki Kikuchi
    • G01P904
    • G01C19/5607
    • The invention reduces the noise from a vibrating gyroscope used for detecting a turning angular rate, when the vibrator is subjected to external vibration. The vibrator is made out of a piezoelectric material. The vibrator vibrates in a driving vibration mode electrically excited in the vibrator and in a detection vibration mode occurring in the vibrator due to Coriolis force when the vibrator is turned. The surface of the vibrator includes a region where the stress induced in the vibrator due to the detection vibration mode is in a range of a local maximum. The gyroscope further has a damper, for reducing vibration sensitivity to external vibrations applied externally on the vibrator. The damper is made of a polymer and is provided on at least the region where the stress induced in the vibrator due to the detection vibration mode is in a range of a local maximum.
    • 当振动器经受外部振动时,本发明减少了用于检测转动角速度的振动陀螺仪的噪声。 振动器由压电材料制成。 振动器以振动器电激励的驱动振动模式振动,并且当振动器转动时由于科里奥利力而在振动器中发生的检测振动模式中振动。 振动器的表面包括由于检测振动模式而在振动器中感应的应力在局部最大值的范围内的区域。 陀螺仪还具有阻尼器,用于减小振动器外部施加的外部振动的振动灵敏度。 阻尼器由聚合物制成,并且至少设置在由于检测振动模式而在振动器中感应的应力在局部最大值的范围内的区域。