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    Material for measuring static and dynamic physical parameters
    2.
    发明授权
    Material for measuring static and dynamic physical parameters 失效
    用于测量静态和动态物理参数的材料

    公开(公告)号：US06534430B2

    公开(公告)日：2003-03-18

    申请号：US09793444

    申请日：2001-02-27

    申请人： Hiroaki Makino ,  Mitsuru Asai ,  Nobuo Kamiya ,  Shin Tajima ,  Katsunori Yamada ,  Hiroshi Hohjo

    发明人： Hiroaki Makino ,  Mitsuru Asai ,  Nobuo Kamiya ,  Shin Tajima ,  Katsunori Yamada ,  Hiroshi Hohjo

    IPC分类号： G01B716

    CPC分类号： C04B35/488

    摘要： A sensor material for measuring physical parameters capable of configuring a sensor capable of directly measuring a high value of physical parameters such as high stress or high pressure without employing a pressure resistance container. The sensor material for measuring static and dynamic physical parameters includes a matrix made of an electrically insulating ceramic material, and piezoresistance materials which are dispersed in the matrix so as to be electrically continuous to each other.

    摘要翻译： 一种用于测量物理参数的传感器材料，其能够构造能够直接测量诸如高应力或高压的物理参数的高值的传感器，而不使用耐压容器。 用于测量静态和动态物理参数的传感器材料包括由电绝缘陶瓷材料制成的基体和分散在基体中以彼此电连续的压电材料。

    Composition of a high sensitivity sensor for detecting mechanical quantity
    5.
    发明授权
    Composition of a high sensitivity sensor for detecting mechanical quantity 有权
    用于检测机械数量的高灵敏度传感器的组成

    公开(公告)号：US06303055B1

    公开(公告)日：2001-10-16

    申请号：US09232906

    申请日：1999-01-19

    申请人： Katsunori Yamada ,  Mitsuru Asai ,  Nobuo Kamiya

    发明人： Katsunori Yamada ,  Mitsuru Asai ,  Nobuo Kamiya

    IPC分类号： H01B108

    CPC分类号： G01L1/20

    摘要： A composition of a high sensitivity sensor for detecting mechanical quantity including: an insulating matrix material; and a conductive path formed by discontinuously dispersing second phase particles of a conductor or a semiconductor into the insulating matrix material at an interparticle distance from 0.001 to 1 &mgr;m, thereby imparting the high sensitivity in the mechanical quantity to the composition.

    摘要翻译： 用于检测机械量的高灵敏度传感器的组成，包括绝缘基质材料; 以及通过将导体或半导体的第二相粒子不连续地分散到绝缘基体材料中而形成的导电路径，其间距离为0.001〜1μm，从而赋予组合物机械量高的灵敏度。

    Pressure detection device
    6.
    发明授权
    Pressure detection device 失效
    压力检测装置

    公开(公告)号：US6125707A

    公开(公告)日：2000-10-03

    申请号：US181081

    申请日：1998-10-27

    申请人： Kyosuke Haga ,  Jiro Nakano ,  Satoshi Suto ,  Tomonari Yamakawa ,  Katsunori Yamada ,  Mitsuru Asai ,  Nobuo Kamiya

    发明人： Kyosuke Haga ,  Jiro Nakano ,  Satoshi Suto ,  Tomonari Yamakawa ,  Katsunori Yamada ,  Mitsuru Asai ,  Nobuo Kamiya

    IPC分类号： G01L9/00 ,  G01L19/00 ,  H01H3/02 ,  H01H35/38

    CPC分类号： G01L19/0092 ,  G01L9/0089 ,  H01H35/38 ,  H01H3/0213

    摘要： A pressure detection device for detecting an increase of pressure acting thereon includes an electrically conductive device housing which has an accommodation bore extending inward from one end of the device housing and a slide bare extending between the accommodation bore and the other end of the device housing. A piston is slidably disposed within the slide bore and adopted to receive a pressure, and a terminal serving as one electric contact is fixed to the accommodation bore via an electrical insulator. A disk spring serving as the other electric contact deforms due to a pressing force of the piston and coming in contact with the terminal. The pressure detection device further comprises an electro-functional member attached to either the terminal or the disk spring in which the electro-functional member is changeable its electric resistance due to an impressed pressing force acting thereon. Further, at least one of a notch and a chamfer is provided on the electro-functional member for changing its electric resistance characteristic.

    摘要翻译： 用于检测作用在其上的压力增加的压力检测装置包括导电装置壳体，其具有从装置壳体的一端向内延伸的容纳孔和在容纳孔和装置壳体的另一端之间延伸的滑动件。 活塞可滑动地设置在滑动孔内并用于承受压力，并且用作一个电触点的端子经由电绝缘体固定到容纳孔。 作为另一个电接触件的盘簧由于活塞的压力而与端子接触而变形。 压力检测装置还包括附接到端子或盘簧的电功能构件，其中电功能构件由于作用在其上的施加的挤压力而改变其电阻。 此外，在电功能部件上设置切口和倒角中的至少一个以改变其电阻特性。

    Controller and controlling method for piezoelectric actuator
    7.
    发明授权
    Controller and controlling method for piezoelectric actuator 失效
    压电执行器的控制器和控制方法

    公开(公告)号：US5796206A

    公开(公告)日：1998-08-18

    申请号：US725679

    申请日：1996-10-02

    申请人： Mitsuru Asai ,  Nobuo Kamiya ,  Tomoji Ishikawa ,  Chihiro Nishikawa

    发明人： Mitsuru Asai ,  Nobuo Kamiya ,  Tomoji Ishikawa ,  Chihiro Nishikawa

    IPC分类号： B23Q5/28 ,  H01L41/04 ,  H01L41/09 ,  H02N2/00 ,  H02N2/06 ,  H01L41/08

    CPC分类号： H02N2/142

    摘要： A method for controlling a piezoelectric actuator includes: a safety range setting process in which a safety range V.sub.range1 or V.sub.range2 of an applied voltage is set so that an area of 180.degree. domain rotation is within one third or less of an area of full 180.degree. domain rotation S.sub.1 or S.sub.2 in a positive or negative region of the applied voltage; and a driving process in which the voltage is applied to the piezoelectric actuator with a limitation of the safety range V.sub.range1 or V.sub.range2. A controller which drives a piezoelectric actuator according to the controlling method is also provided. A temperature compensation is applied if necessary. The 180.degree. domain rotation is limited by the lower or upper limit of the safety range, so that local concentration of inner stress is suppressed and the actuator is driven at its maximum ability without cracks or splits.

    摘要翻译： 一种用于控制压电致动器的方法包括：设置施加电压的安全范围Vrange1或Vrange2的安全范围设定处理，使得180°域旋转的面积在180度的区域的三分之一以下 施加电压的正或负区域中的域旋转S1或S2; 以及在安全范围Vrange1或Vrange2的限制下将电压施加到压电致动器的驱动过程。 还提供了根据控制方法驱动压电致动器的控制器。 必要时应用温度补偿。 180°域旋转受安全范围的上限或下限限制，内部应力的局部浓度被抑制，致动器的最大能力无裂纹或分裂。

    Piezoelectric material and piezoelectric element
    9.
    发明授权
    Piezoelectric material and piezoelectric element 失效
    压电材料和压电元件

    公开(公告)号：US5935485A

    公开(公告)日：1999-08-10

    申请号：US961147

    申请日：1997-10-30

    申请人： Takao Tani ,  Hiroaki Makino ,  Nobuo Kamiya

    发明人： Takao Tani ,  Hiroaki Makino ,  Nobuo Kamiya

    IPC分类号： H01L41/187 ,  H01L41/00

    CPC分类号： H01L41/187 ,  Y10T428/2991

    摘要： A piezoelectric material includes a PZT ceramic, and a noble metal component. The noble metal component is added to the PZT ceramic in an amount of 0.35 parts by volume or more with respect to 100 parts by volume of the PZT ceramic, and is at least one element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt and Au, or is an alloy of silver (Ag) and the noble metal element. A piezoelectric element includes a pair of external electrodes, at least a pair of piezoelectric layers, and a conductive layer. The piezoelectric layers are formed of the PZT ceramic, and are disposed between the external electrodes. The conductive layer is formed of the noble metal component, and is insulated from the external electrodes. The piezoelectric layers and the conductive layer are formed lamellarly, and are laminated alternately in a direction connecting the external electrodes.

    摘要翻译： 压电材料包括PZT陶瓷和贵金属组分。 相对于100体积份的PZT陶瓷，贵金属成分以0.35体积份以上的量添加到PZT陶瓷中，并且为选自Ru，Rh，Pd， Os，Ir，Pt和Au，或者是银（Ag）和贵金属元素的合金。 压电元件包括​​一对外部电极，至少一对压电层和导电层。 压电层由PZT陶瓷形成，并且设置在外部电极之间。 导电层由贵金属成分形成，与外部电极绝缘。 压电层和导电层层叠形成，并且在连接外部电极的方向上交替层叠。