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    • 1. 发明申请
    • SWITCHING APPARATUS AND TEST APPARATUS
    • 切换装置和测试装置
    • US20130038335A1
    • 2013-02-14
    • US13277234
    • 2011-10-20
    • Hisao HORIYoshikazu ABEYoshihiro SATO
    • Hisao HORIYoshikazu ABEYoshihiro SATO
    • H01H57/00G01R31/02
    • G01R1/06705G01R1/07392H01H57/00H01H2057/006H01L41/094
    • Provided is a switching apparatus comprising a contact point section that includes a first contact point; an actuator that includes a second contact point and moves the second contact point to contact or move away from the first contact point; and a control section that controls a first drive voltage. The actuator includes a first piezoelectric film that expands and contracts according to the first drive voltage and a support layer disposed on the first piezoelectric film. The control section causes the first piezoelectric film to contract by causing a change from a voltage that applies an electric field that is less than a first coercive electric field to a voltage that applies an electric field that exceeds the first coercive electric field, and causes the first piezoelectric film to expand by outputting a voltage that applies an electric field that is less than a second coercive electric field.
    • 提供一种开关装置,包括:接触点部分,其包括第一接触点; 致动器,其包括第二接触点并且使所述第二接触点移动以接触或远离所述第一接触点移动; 以及控制部,其控制第一驱动电压。 致动器包括根据第一驱动电压而膨胀和收缩的第一压电膜和设置在第一压电膜上的支撑层。 控制部通过将施加小于第一矫顽电场的电场的电压变为施加超过第一矫顽电场的电场的电压使第一压电膜收缩, 第一压电膜通过输出施加小于第二矫顽电场的电场的电压而膨胀。
    • 6. 发明授权
    • Switching apparatus and test apparatus
    • 开关设备和测试仪器
    • US08841918B2
    • 2014-09-23
    • US13277234
    • 2011-10-20
    • Hisao HoriYoshikazu AbeYoshihiro Sato
    • Hisao HoriYoshikazu AbeYoshihiro Sato
    • G01R31/02G01R31/26G01R1/067H01H57/00G01R1/073H01L41/09
    • G01R1/06705G01R1/07392H01H57/00H01H2057/006H01L41/094
    • Provided is a switching apparatus comprising a contact point section that includes a first contact point; an actuator that includes a second contact point and moves the second contact point to contact or move away from the first contact point; and a control section that controls a first drive voltage. The actuator includes a first piezoelectric film that expands and contracts according to the first drive voltage and a support layer disposed on the first piezoelectric film. The control section causes the first piezoelectric film to contract by causing a change from a voltage that applies an electric field that is less than a first coercive electric field to a voltage that applies an electric field that exceeds the first coercive electric field, and causes the first piezoelectric film to expand by outputting a voltage that applies an electric field that is less than a second coercive electric field.
    • 提供一种开关装置,包括:接触点部分,其包括第一接触点; 致动器,其包括第二接触点并且使所述第二接触点移动以接触或远离所述第一接触点移动; 以及控制部,其控制第一驱动电压。 致动器包括根据第一驱动电压而膨胀和收缩的第一压电膜和设置在第一压电膜上的支撑层。 控制部通过将施加小于第一矫顽电场的电场的电压变为施加超过第一矫顽电场的电场的电压使第一压电膜收缩, 第一压电膜通过输出施加小于第二矫顽电场的电场的电压而膨胀。
    • 7. 发明申请
    • SWITCHING APPARATUS AND TEST APPARATUS
    • 切换装置和测试装置
    • US20130037395A1
    • 2013-02-14
    • US13275342
    • 2011-10-18
    • Hisao HORIYoshikazu ABEYoshihiro SATO
    • Hisao HORIYoshikazu ABEYoshihiro SATO
    • H01H57/00
    • H01L41/094G01R31/2889G01R31/31926H01H2057/006H01L41/042H01L41/0913
    • A switching apparatus comprising a contact point section including a first contact point; an actuator including a first piezoelectric film that expands and contracts according to a first drive voltage and a second piezoelectric film provided in parallel with the first piezoelectric film and expands and contracts according to a second drive voltage, and a control section that controls the first drive voltage and the second drive voltage is provided. The actuator moves a second contact point to contact or move away from the first contact point according to the contraction and expansion of the first piezoelectric film and the second piezoelectric film. When switching from a contact state to a separated state, the control section stops supplying the first drive voltage and applies the second drive voltage causing the second piezoelectric film to contract to the second piezoelectric film, such that the actuator is biased to return.
    • 一种切换装置,包括:接触点部分,包括第一接触点; 包括根据第一驱动电压而膨胀和收缩的第一压电膜的致动器和与第一压电膜平行设置的第二压电膜,并根据第二驱动电压而膨胀和收缩;以及控制部,其控制第一驱动 电压并提供第二驱动电压。 执行器根据第一压电膜和第二压电膜的收缩和膨胀使第二接触点移动接触或离开第一接触点移动。 当从接触状态切换到分离状态时,控制部分停止提供第一驱动电压,并施加第二驱动电压,使第二压电薄膜收缩到第二压电薄膜,使得致动器被偏置返回。
    • 9. 发明申请
    • PIEZOELECTRIC-DRIVE APPARATUS, METHOD OF CONTROLLING PIEZOELECTRIC-DRIVE AND ELECTRONIC DEVICE
    • 压电驱动装置,控制压电驱动和电子装置的方法
    • US20100007242A1
    • 2010-01-14
    • US12345681
    • 2008-12-30
    • HISAO HORITAKASHI WATANABE
    • HISAO HORITAKASHI WATANABE
    • H01L41/04H02N2/06
    • H01L41/042H01L41/0825H01L41/094
    • A piezoelectric driving device including a laminated body having a base that is capable of being deformed by applying force, a first piezoelectric body that is formed on a first face of the base directly or via another layer, and a second piezoelectric body that is formed on a second face of the base substantially parallel to the first face directly or via another layer, a driving voltage generating section that generates a driving voltage according to a displacement amount of the laminated body, a compensating voltage generating section that generates a compensating voltage compensating for hysteresis caused by the displacement of the laminated body by the driving voltage, and a voltage applying section that applies each of the driving voltage and the compensating voltage to each of the first piezoelectric body and the second piezoelectric body.
    • 一种压电驱动装置,包括具有能够通过施加力而变形的基体的层叠体,形成在基底的第一面上或经由另一层的第一压电体,以及形成在基底上的第二压电体, 基本上基本上平行于第一面的第二面或经由另一层,驱动电压产生部,其根据层叠体的位移量产生驱动电压;补偿电压产生部,其生成补偿电压 由驱动电压引起的层叠体的位移引起的滞后;以及施加驱动电压和补偿电压各自的第一压电体和第二压电体的电压施加部。