-
公开(公告)号：US6050144A
公开(公告)日：2000-04-18
申请号：US89660
申请日：1998-06-03
申请人： Tetsuro Otsuchi , Katsu Takeda , Katsunori Moritoki , Osamu Kawasaki , Junichi Kato , Kouji Kawakita , Hiroshi Kagata
发明人： Tetsuro Otsuchi , Katsu Takeda , Katsunori Moritoki , Osamu Kawasaki , Junichi Kato , Kouji Kawakita , Hiroshi Kagata
CPC分类号： G01P15/0922 , G01P21/00
摘要： An acceleration sensor has a piezoelectric element which includes a piezoelectric member layer in which a plurality of piezoelectric members are stacked and electrodes which are disposed in major opposed surfaces of the piezoelectric member layer; and a support member for supporting the piezoelectric element, wherein some piezoelectric members of the piezoelectric member layer are polarized, the electrodes are disposed in the both surfaces of the polarized piezoelectric members, capacitors which are formed by the polarized piezoelectric members and the electrodes in the both surfaces of the polarized piezoelectric members are connected parallel to each other.
摘要翻译： 加速度传感器具有压电元件，该压电元件包括堆叠有多个压电元件的压电元件层和设置在该压电元件层的主要相对表面的电极; 以及用于支撑所述压电元件的支撑构件，其中所述压电构件层的一些压电构件被极化，所述电极设置在所述极化压电构件的两个表面中，所述极化压电构件形成的电容器和所述极化压电构件中的电极 极化压电元件的两个表面彼此平行地连接。
-
公开(公告)号：US5448129A
公开(公告)日：1995-09-05
申请号：US261245
申请日：1994-06-14
CPC分类号： H02N2/163 , H02N2/0065 , H02N2/007
摘要： An ultrasonic motor which achieves uniform contact between the vibrating body and the moving body and features high output transfer efficiency and high reliability, and by which the manufacturing process for the moving body thereof can be simplified and the moving body made lighter.By comprising the moving body of a carbon fiber reinforced resin composite material reinforced by at least carbon fiber, and constructing the moving body with a both-side supported or single-side supported beam construction, elasticity according to the pressure of the ultrasonic motor can be imparted in the direction of pressure of the moving body. Thus, the undulations in the contact surface of the vibrating body and the moving body can be absorbed and stable, uniform contact can be assured, and long-term maintenance of a stable friction condition can be achieved.
摘要翻译： 一种实现振动体与移动体均匀接触的超声波马达，具有输出转印效率高，可靠性高，可以简化移动体的制造工序，使移动体变轻。 通过将由至少碳纤维增强的碳纤维增强树脂复合材料的移动体构成，并且通过双侧支撑或单侧支撑梁结构构造移动体，根据超声波马达的压力可以具有弹性 在移动体的压力方向上施加。 因此，振动体和移动体的接触面的波动可以被吸收稳定，可以保证均匀的接触，并且可以实现稳定的摩擦条件的长期维持。
-
公开(公告)号：US09253578B2
公开(公告)日：2016-02-02
申请号：US14237481
申请日：2012-08-28
申请人： Fumiyasu Konno , Katsu Takeda
发明人： Fumiyasu Konno , Katsu Takeda
CPC分类号： H04R17/00 , H04R1/323 , H04R1/403 , H04R7/20 , H04R2307/027 , H04R2307/204 , H04R2307/207
摘要： In a directional loudspeaker, an audible sound signal that is modulated with a carrier wave in the ultrasonic wave band is input to a piezoelectric element, and thereby a diaphragm having the piezoelectric element is vibrated and a sound wave is generated. In such a directional loudspeaker, the diaphragm is fixed to a fixed part via a plurality of beams disposed along the outer circumference of the diaphragm.
摘要翻译： 在定向扬声器中，在超声波波段中用载波调制的声音信号被输入到压电元件，由此使具有压电元件的隔膜振动并产生声波。 在这种定向扬声器中，隔膜通过沿隔膜的外圆周设置的多个光束固定到固定部分。
-
公开(公告)号：US07170215B2
公开(公告)日：2007-01-30
申请号：US10865125
申请日：2004-06-10
申请人： Akihiko Namba , Keiji Onishi , Katsu Takeda
发明人： Akihiko Namba , Keiji Onishi , Katsu Takeda
IPC分类号： H01L41/08
CPC分类号： H03H9/564 , B41J2002/14266 , H03H3/04 , H03H9/173 , H03H9/174 , H03H9/175 , H03H2003/0435 , H03H2003/0478 , Y10T29/42 , Y10T29/49005 , Y10T29/49128 , Y10T29/4913 , Y10T29/49135
摘要： An electronic component includes a substrate; a piezoelectric material layer supported directly or indirectly by the substrate; a first electrode arranged on a surface of the piezoelectric material layer on an opposite side of the substrate; and a second electrode arranged on a surface of the piezoelectric material layer on the substrate side. The piezoelectric material layer is sandwiched between the first electrode and the second electrode. The first electrode has a smaller surface area than the piezoelectric material layer. A portion where the piezoelectric material layer is exposed from the first electrode includes a portion that is thinner than a thickness of the piezoelectric material layer between the first electrode and the second electrode. Thus, it is possible to configure a resonator with a higher frequency than its ordinary resonance, and it is easy to achieve an adjustment of the resonance frequency of the resonator, as well as improving the yield of the component and enabling the configuration of an electronic component that includes a plurality of resonators of different frequencies.
摘要翻译： 电子部件包括基板; 由衬底直接或间接支撑的压电材料层; 布置在所述压电材料层的与所述基板相反的一侧的表面上的第一电极; 以及设置在基板侧的压电体层的表面上的第二电极。 压电材料层夹在第一电极和第二电极之间。 第一电极具有比压电材料层更小的表面积。 压电材料层从第一电极露出的部分包括比第一电极和第二电极之间的压电材料层的厚度薄的部分。 因此，可以构成具有比其普通谐振更高的频率的谐振器，并且容易实现谐振器的谐振频率的调节，以及提高元件的产量并且能够构造电子 该组件包括多个不同频率的谐振器。
-
25.发明授权公开(公告)号：US06911787B2
公开(公告)日：2005-06-28
申请号：US10719546
申请日：2003-11-21
申请人： Katsu Takeda , Hiroshi Nakatsuka
发明人： Katsu Takeda , Hiroshi Nakatsuka
IPC分类号： G02F1/133 , G09G3/34 , H01L41/04 , H05B41/282 , H05B37/02
CPC分类号： H05B41/2828 , H01L41/044
摘要： There is provided a method for driving a piezoelectric transformer in which a driving efficiency and the reliability in terms of withstand power and distortion can be enhanced by suppressing a higher order vibration mode exited by a harmonic component other than a driving frequency included in a driving signal of the piezoelectric transformer without using an inductive element. The driving signal applied to a primary side electrode of the piezoelectric transformer is a signal in a rectangular waveform having a time period δT in which a level is a maximum potential (2V) or a minimum potential (0), obtained by multiplying a period T of the driving signal by a predetermined time ratio δ. The time ratio δ is set to be smaller than 0.5 and so as to minimize a sum of ratios of amplitudes of respective higher order vibration modes with respect to an amplitude of a vibration mode exciting the piezoelectric transformer.
摘要翻译： 提供了一种用于驱动压电变压器的方法，其中通过抑制由包括在驱动信号中的驱动频率以外的谐波分量退出的高阶振动模式，可以提高驱动效率和耐受功率和失真方面的可靠性 的压电变压器，而不使用电感元件。 施加到压电变压器的初级侧电极的驱动信号是具有时间段ΔT的矩形波形的信号，其中电平是通过将周期T乘以的最大电位（2V）或最小电位（0） 的驱动信号。 将时间比Δ设定为小于0.5，并且使得相对于激励压电变压器的振动模式的振幅的各较高阶振动模式的振幅比之和最小化。
-
公开(公告)号：US5644199A
公开(公告)日：1997-07-01
申请号：US503512
申请日：1995-07-18
申请人： Takashi Nojima , Masanori Sumihara , Tetsuro Otsuchi , Takahiro Nishikura , Osamu Kawasaki , Katsu Takeda , Katsumi Imada
发明人： Takashi Nojima , Masanori Sumihara , Tetsuro Otsuchi , Takahiro Nishikura , Osamu Kawasaki , Katsu Takeda , Katsumi Imada
摘要： The present invention relates to a method for driving an ultrasonic motor of the type which includes a vibrator for causing a flexural vibration wave in response to a pair of AC driving voltage signals, and a rotor in contact with the vibrator and moved by the flexural vibration wave. The rotational speed of the ultrasonic motor is controlled by using a feedback signal and a data table, the feedback signal indicating the current rotational speed of the ultrasonic motor, and the data table storing values of the feedback signal as a standard function of the rotational 21 speed. The method includes the step of sampling the feedback signal and detecting the rotational speed in a plurality of rotation states of the ultrasonic motor. The method obtains an approximate function representing the relationship between the sampled feedback signal and the detected rotational speed of the ultrasonic motor, and calculates correction coefficients for adjusting the approximate function to the standard function. The method then controls the rotational speed of the ultrasonic motor by using the feedback signal. In the controlling step, the method corrects the feedback signal obtained from the ultrasonic motor by using the correction coefficient, whereby a value of the approximate function is transformed into a corresponding value of the standard function.
摘要翻译： 本发明涉及一种用于驱动超声波电动机的方法，该超声波电动机包括响应于一对交流驱动电压信号而产生弯曲振动波的振动器，以及与振动器接触并通过弯曲振动移动的转子 波。 通过使用反馈信号和数据表，指示超声波马达的当前转速的反馈信号和将反馈信号的值作为旋转21的标准函数的数据表来控制超声波马达的转速 速度。 该方法包括对超声波马达的多个旋转状态中的反馈信号进行采样和检测转速的步骤。 该方法获得表示采样反馈信号与检测到的超声波马达的转速之间的关系的近似函数，并计算用于调整与标准函数近似函数的校正系数。 然后，该方法通过使用反馈信号来控制超声波马达的转速。 在控制步骤中，该方法通过使用校正系数校正从超声波马达获得的反馈信号，由此将近似函数的值转换为标准函数的对应值。
-
公开(公告)号：US5457351A
公开(公告)日：1995-10-10
申请号：US200002
申请日：1994-02-22
CPC分类号： H02N2/166
摘要： A position where the projection member is disposed is optimized by the product of a vibration displacement distribution of a vibration member composed of an elastic member for exciting the primary elastic progressive waves or more in the radial direction and the tertiary elastic progressive waves or more in the peripheral direction, and a generation force distribution of a vibration member to be caused in accordance with the pressure force so that the motor output is made larger. The construction is optional in accordance with the necessary characteristics, and the characteristics are superior by the shape of the supporting means of the vibrating member and the vibration member, thus providing an ultrasonic motor of higher stability.
摘要翻译： 通过由用于激发初级弹性渐进波的弹性部件或径向的弹性部件构成的振动部件的振动位移分布和三次弹性渐进波以上的三次弹性渐进波或更多的弹性部件的振动位移分布，使突出部件配置的位置最优化 圆周方向和根据压力引起的振动构件的产生力分布，使得电动机输出变大。 该结构根据必要的特性是可选的，其特征是通过振动部件和振动部件的支撑装置的形状优越，从而提供了具有更高稳定性的超声波马达。
-
公开(公告)号：US5300851A
公开(公告)日：1994-04-05
申请号：US969369
申请日：1992-10-30
CPC分类号： H02N2/026 , H02N2/0015
摘要： In a linear-type actuator where an elastic wave is excited upon the vibrator composed of a rod shaped elastic member and a piezo member so as to drive the moving member bought into pressure contact upon the vibrator, the present invention provides a linear-type actuator where the improvement of the driving efficiency and the simplification of the driving circuit can be achieved by the new driving principle.
摘要翻译： 在弹性波被由杆形弹性构件和压电构件组成的振动器激励以驱动在振动器上被压力接触的移动构件的线性致动器中，本发明提供一种线性致动器 其中驱动效率的提高和驱动电路的简化可以通过新的驱动原理来实现。
-
公开(公告)号：US08861774B2
公开(公告)日：2014-10-14
申请号：US13825246
申请日：2011-08-23
申请人： Katsu Takeda , Fumiyasu Konno , Rihito Shoji , Susumu Fukushima
发明人： Katsu Takeda , Fumiyasu Konno , Rihito Shoji , Susumu Fukushima
CPC分类号： H04R1/345 , H04R1/026 , H04R1/06 , H04R1/323 , H04R5/02 , H04R2201/025 , H04R2217/03 , H04R2499/13
摘要： A sound reproduction device includes a superdirective speaker having a first surface, and an attachment part having a second surface opposed to the first surface. The first surface has a convex face, and the second surface has a concave face which can come into contact with the convex face. A curvature of the convex face is set larger than that of the concave face. A direction of emitting a sound wave of the superdirective speaker can be adjusted by making the convex face move along the concave face.
摘要翻译： 声音再现装置包括具有第一表面的超直向扬声器和具有与第一表面相对的第二表面的附接部分。 第一表面具有凸面，第二面具有与凸面接触的凹面。 凸面的曲率设定为大于凹面的曲率。 可以通过使凸面沿着凹面移动来调节发出超声扬声器的声波的方向。
-
公开(公告)号：US08666106B2
公开(公告)日：2014-03-04
申请号：US13616224
申请日：2012-09-14
申请人： Fumiyasu Konno , Katsu Takeda
发明人： Fumiyasu Konno , Katsu Takeda
IPC分类号： H04R1/02
CPC分类号： H04R1/323 , H04R5/02 , H04R27/00 , H04R2201/025 , H04R2217/03 , H04R2499/15 , H04S7/303
摘要： A sound reproducing device includes parametric speakers disposed to a display, a loudspeaker, drivers, a human-body sensor, and a controller. The loudspeaker has a wider directivity than the parametric speakers. The drivers change directions of the parametric speakers, respectively. The parametric speakers and the drivers constitute at least two parametric speaker units each composed of respective one of the parametric speakers and respective one of the drivers. The controller reproduces sound information based the number of persons in front of the display detected from an output from the human-body senor. The sound reproducing device reduces the possibility for a number of persons to hear the sound noisily, and allows drawing more attention to the content, e.g. an advertisement.
摘要翻译： 声音再现装置包括设置在显示器上的参数扬声器，扬声器，驱动器，人体传感器和控制器。 扬声器具有比参数扬声器更宽的方向性。 驱动程序分别改变了参数扬声器的方向。 参数扬声器和驱动器构成至少两个参数扬声器单元，每个扬声器单元由相应的一个参数扬声器和相应的驱动器组成。 控制器根据来自人体传感器的输出检测到的显示器的人数再现声音信息。 声音再现装置降低了许多人听到声音的可能性，并且允许更多地关注内容，例如， 一个广告。
-
-
-
-
-
-
-
-
-
搜索结果
48 条记录 (耗时 0.016 秒)
