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公开(公告)号:US5523643A
公开(公告)日:1996-06-04
申请号:US480885
申请日:1995-06-07
申请人: Takanao Fujimura , Tomoki Funakubo , Yougo Imai , Toshiharu Tsubata , Yoshihisa Taniguchi , Takashi Ouchi , Hiroyuki Imabayashi , Yukihiko Sawada , Katsuhiro Wakabayashi
发明人: Takanao Fujimura , Tomoki Funakubo , Yougo Imai , Toshiharu Tsubata , Yoshihisa Taniguchi , Takashi Ouchi , Hiroyuki Imabayashi , Yukihiko Sawada , Katsuhiro Wakabayashi
CPC分类号: H01L41/0906
摘要: An ultrasonic piezoelectric transducer and an ultrasonic actuator for performing enhanced elliptical vibration comprise a first laminated piezoelectric element having a first fixed end, a resonator mounted to the opposite end of the first laminated piezoelectric element, a second laminated piezoelectric element having one end thereof fixedly mounted to the resonator in a direction other than a vibrating direction of the first laminated piezoelectric element, and a load mass fixedly mounted to the opposite end of the second laminated piezoelectric element. This structure permits the enhanced elliptical vibration of the transducer to have a large, controllable amplitude.
摘要翻译: 用于进行增强的椭圆振动的超声波压电换能器和超声波致动器包括具有第一固定端的第一层压压电元件,安装在第一层叠压电元件的相对端的谐振器,其一端固定地安装在第二层叠压电元件 在与第一层压型压电元件的振动方向以外的方向上的谐振器,以及固定地安装在第二层压型压电元件的另一端的负载质量。 这种结构允许增强的换能器的椭圆振动具有大的可控振幅。
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公开(公告)号:US08330328B2
公开(公告)日:2012-12-11
申请号:US12850686
申请日:2010-08-05
申请人: Toshiharu Tsubata , Yoshihiro Ue
发明人: Toshiharu Tsubata , Yoshihiro Ue
IPC分类号: H02N2/00
CPC分类号: H02N2/0055 , H02N2/004 , H02N2/026
摘要: An ultrasonic motor includes a vibrator, a mobile unit, a holding mechanism, and a pressing mechanism. The vibrator generates elliptical vibration by degenerating different vibration modes and having a phase difference between the different vibration modes. The mobile unit is configured to be movable relative to the vibrator. The holding mechanism holds and fixes the vibrator in a direction substantially parallel to the direction of the relative movement of the mobile unit. The pressing mechanism presses the vibrator against the mobile unit. The holding mechanism includes an adjustment unit for adjusting the resonant frequencies of the different vibration modes of the vibrator to substantially match each other when the ultrasonic motor is driven.
摘要翻译: 超声波马达包括振动器,移动单元,保持机构和按压机构。 振动器通过退化不同的振动模式并在不同振动模式之间具有相位差而产生椭圆振动。 移动单元被构造成相对于振动器可移动。 保持机构将振动器保持并固定在与移动单元的相对移动方向大致平行的方向上。 按压机构将振动器压靠移动单元。 保持机构包括:调节单元,用于调节振动器的不同振动模式的谐振频率,以便在超声波马达被驱动时彼此基本匹配。
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公开(公告)号:US20110043076A1
公开(公告)日:2011-02-24
申请号:US12850686
申请日:2010-08-05
申请人: Toshiharu TSUBATA , Yushihiro Ue
发明人: Toshiharu TSUBATA , Yushihiro Ue
IPC分类号: H02N2/04
CPC分类号: H02N2/0055 , H02N2/004 , H02N2/026
摘要: An ultrasonic motor includes a vibrator, a mobile unit, a holding mechanism, and a pressing mechanism. The vibrator generates elliptical vibration by degenerating different vibration modes and having a phase difference between the different vibration modes. The mobile unit is configured to be movable relative to the vibrator. The holding mechanism holds and fixes the vibrator in a direction substantially parallel to the direction of the relative movement of the mobile unit. The pressing mechanism presses the vibrator against the mobile unit. The holding mechanism includes an adjustment unit for adjusting the resonant frequencies of the different vibration modes of the vibrator to substantially match each other when the ultrasonic motor is driven.
摘要翻译: 超声波马达包括振动器,移动单元,保持机构和按压机构。 振动器通过退化不同的振动模式并在不同振动模式之间具有相位差而产生椭圆振动。 移动单元被构造成相对于振动器可移动。 保持机构将振动器保持并固定在与移动单元的相对移动方向大致平行的方向上。 按压机构将振动器压靠移动单元。 保持机构包括:调节单元,用于调节振动器的不同振动模式的谐振频率,以便在超声波马达被驱动时彼此基本匹配。
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公开(公告)号:US5416375A
公开(公告)日:1995-05-16
申请号:US304083
申请日:1994-09-09
申请人: Tomoki Funakubo , Takanao Fujimura , Hiroyuki Imabayashi , Takashi Ouchi , Yoshihisa Taniguchi , Toshiharu Tsubata
发明人: Tomoki Funakubo , Takanao Fujimura , Hiroyuki Imabayashi , Takashi Ouchi , Yoshihisa Taniguchi , Toshiharu Tsubata
摘要: An ultrasonic motor comprising an elastic body, at least two laminated piezoelectric bodies clamped by a portion of the elastic body, an ultrasonic oscillator for exciting simultaneously a plurality of shrunk and retreated oscillation modes on the elastic body, to generate ultrasonic elliptic oscillation, and an element to be driven urged against a portion of the ultrasonic oscillator and movable with respect to the ultrasonic oscillator.
摘要翻译: 一种超声波电动机,其特征在于,包括弹性体,由所述弹性体的一部分夹持的至少2层叠压电体,在所述弹性体上同时激励多个收缩退避振荡模式的超声波振荡器,生成超声波椭圆振荡, 被驱动的元件被推压到超声波振荡器的一部分上并相对于超声波振荡器可移动。
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