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1.发明授权公开(公告)号：US11933719B2
公开(公告)日：2024-03-19
申请号：US17443731
申请日：2021-07-27
Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.
Inventor： Tianzhu Chen
CPC classification number: G01N21/278 , H02N2/12 , H02N2/142 , B60K35/00
Abstract: A posture adjustment device for an optical sensor includes: a controller, a posture detector, and a posture adjustment structure. An optical sensor to be detected is fixed on the posture adjustment structure. The posture detector receives an emitted beam of the optical sensor to be detected, detects a posture of the optical sensor to be detected according to the emitted beam, and sends posture information to the controller. The controller controls, according to the posture information, the posture adjustment structure to adjust the posture of the optical sensor to be detected.
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2.发明公开
公开(公告)号：US20230144997A1
公开(公告)日：2023-05-11
申请号：US17980557
申请日：2022-11-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Ryuichi SATO
Abstract: A method of controlling a piezoelectric driving apparatus including a vibration section that has a piezoelectric element and a transmission section that transmits vibration of the vibration section to a driven body, and, by energization of the piezoelectric element, vibrates the vibration section in a combination of longitudinal vibration and bending vibration to cause the transmission section to perform an elliptical motion and to move the driven body by the elliptical motion, the method of controlling the piezoelectric driving apparatus including switching, according to an external force received by the driven body, a drive algorithm of the piezoelectric driving apparatus between a first drive mode in which a separation amplitude, which is an amplitude of the longitudinal vibration, is changed while a feed amplitude, which is an amplitude of the bending vibration, is constant and a second drive mode in which both the feed amplitude and the separation amplitude are changed.
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公开(公告)号：US20170310248A1
公开(公告)日：2017-10-26
申请号：US15490457
申请日：2017-04-18
Applicant: TOPCON CORPORATION
Inventor： Kaoru KUMAGAI , Satoshi YANOBE
CPC classification number: H02N2/142 , G01C15/002 , H02N2/163
Abstract: Provided is a method for controlling an ultrasonic motor provided at a rotary shaft of a surveying instrument to meet requirements for a rotation speed and a plurality of operation modes, and a surveying instrument for the same. In the present invention, the ultrasonic motor is controlled by a first signal having a square wave in a range of rotation speed of the rotary shaft from zero to a first speed, controlled by a second signal in which rises or falls of the square wave are sloped in a range from the first speed to a second speed, controlled by a third signal in which rises and falls of the square wave are sloped in a range from the second speed to a third speed, and controlled by a fourth signal in which the drive signal is continuously applied in a range higher than the third speed.
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公开(公告)号：US20170309806A1
公开(公告)日：2017-10-26
申请号：US15463920
申请日：2017-03-20
Applicant: TOPCON CORPORATION
Inventor： Kaoru KUMAGAI , Satoshi YANOBE , Tetsutaro KOUJI
CPC classification number: H01L41/042 , B06B1/0644 , G01C3/08 , G01C15/002 , G01D5/3473 , G01S3/786 , H01L41/09 , H02N2/142 , H02N2/163
Abstract: Provided is a method for controlling an ultrasonic motor to reduce noise sounding during low-speed rotation in a surveying instrument adopting the ultrasonic motor for a rotary shaft, and a surveying instrument for the same. In a method for controlling an ultrasonic motor according to an aspect of the present invention, in a low-speed rotation range of an ultrasonic motor, a ratio of an acceleration period as a time of application of the drive signal in a control cycle is controlled, and a time to start the acceleration period is randomly shifted for each control cycle. In a method for controlling an ultrasonic motor according to another aspect, a time to start the acceleration period is regularly shifted for each control cycle. In a method for controlling an ultrasonic motor according to still another aspect, second-half acceleration control and first-half acceleration control are alternately repeated.
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5.发明申请CONTROL APPARATUS OF VIBRATION-TYPE ACTUATOR AND CONTROL METHOD OF VIBRATION-TYPE ACTUATOR 审中-公开振动式执行机构的控制装置及振动式执行机构的控制方法
公开(公告)号：US20160336879A1
公开(公告)日：2016-11-17
申请号：US15222387
申请日：2016-07-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shinya Kudo
CPC classification number: H02N2/06 , H02N2/0015 , H02N2/008 , H02N2/026 , H02N2/062 , H02N2/103 , H02N2/142
Abstract: Provided is a control apparatus of a vibration-type actuator for generating an elliptical motion of contact portions by a common alternating current including a frequency determining unit for setting a frequency of the alternating current. The frequency determining unit sets the frequency of the alternating current for changing an ellipticity of the elliptical motion, within a frequency range such that ellipticity changing frequency ranges set for the vibrators are overlapped, and the ellipticity changing frequency ranges are set for the vibrators as frequency ranges between an upper limit and a lower limit, such that the lower limit is a maximum resonant frequency at a time of changing the ellipticity, and the upper limit is larger than the lower limit and is a maximum frequency for the relative movement of the driving member.
Abstract translation: 提供了一种用于通过公共交流产生接触部分的椭圆运动的振动型致动器的控制装置，包括用于设定交流电频率的频率确定单元。 频率确定单元设置用于改变椭圆运动的椭圆率的交流电流的频率，使得对于振动器设置的椭圆变化频率范围重叠的频率范围内，并且将振动器的椭圆变化频率范围设置为频率 范围在上限和下限之间，使得下限是改变椭圆率时的最大谐振频率，并且上限大于下限，并且是驱动的相对运动的最大频率 会员。
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公开(公告)号：US09444385B2
公开(公告)日：2016-09-13
申请号：US13991454
申请日：2011-12-13
Applicant: Kenichi Kataoka
Inventor： Kenichi Kataoka
CPC classification number: H02P25/032 , H02N2/142
Abstract: A control apparatus for a vibration type actuator, which uses a vibration wave excited by a vibrating member to actuate a movable member in contact with or indirectly connected to the vibrating member, includes a command unit which gives a command indicating at least one parameter, an AC voltage generator which generates the AC voltage for applying the excitation force to the vibrating member, a variable adding unit which adds a predetermined variable to each of one or more parameters, a frequency response characteristic measuring unit which receives as an input a variable output and outputs a physical quantity and obtains a frequency response characteristic at one or more predetermined frequencies, a resonance frequency estimation unit which estimates a resonance frequency of the vibrating member, and a frequency range limiter which determines a frequency range for the AC voltage output by the AC voltage generator.
Abstract translation: 一种用于振动型致动器的控制装置，其使用由振动构件激励的振动波来驱动与振动构件接触或间接连接的可动构件，包括命令单元，其给出指示至少一个参数的命令， 产生用于向振动部件施加激励力的交流电压的交流电压发生器，对一个或多个参数中的每一个添加预定变量的可变加法单元，接收作为输入的可变输出的频率响应特性测量单元， 输出物理量并获得一个或多个预定频率的频率响应特性，估计振动构件的共振频率的谐振频率估计单元和确定由AC输出的AC电压的频率范围的频率范围限制器 电压发生器
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公开(公告)号：US09377348B2
公开(公告)日：2016-06-28
申请号：US13916128
申请日：2013-06-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kenichi Kataoka
CPC classification number: G01H9/00 , A61B5/0042 , A61B5/0046 , A61B5/0051 , A61B5/04008 , A61B5/055 , A61B5/7217 , A61B34/30 , A61B2090/374 , G01R33/285 , G01R33/565 , H02N2/142 , H02N2/147 , H02N2/163
Abstract: A measuring system for measuring a physical quantity related to one of an electromagnetic wave and a magnetic field includes a vibration-type actuator, a waveform generating unit configured to generate a driving waveform signal of the vibration-type actuator, an optical transmitter unit configured to receive the driving waveform signal and convert the driving waveform signal into an optical signal, an optical receiver unit configured to receive the optical signal and convert the optical signal into an alternating-current voltage signal, and a drive circuit configured to receive the alternating-current voltage signal and apply the alternating-current voltage signal to the vibration-type actuator. The waveform generating unit and the optical transmitter unit are disposed outside a magnetic shield room. The optical receiver unit, the drive circuit, and the vibration-type actuator are disposed inside the magnetic shield room, and the optical signal is transmitted between the optical transmitter unit and the optical receiver unit.
Abstract translation: 用于测量与电磁波和磁场之一相关的物理量的测量系统包括：振动型致动器;波形产生单元，被配置为产生所述振动型致动器的驱动波形信号;光发射单元，被配置为 接收驱动波形信号并将驱动波形信号转换为光信号;光接收单元，被配置为接收光信号并将光信号转换为交流电压信号;以及驱动电路，被配置为接收交流电 电压信号并将交流电压信号施加到振动型致动器。 波形生成单元和光发送单元设置在磁屏蔽室的外侧。 光接收单元，驱动电路和振动型致动器设置在磁屏蔽室内，光信号在光发送单元和光接收单元之间传输。
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公开(公告)号：US09366940B2
公开(公告)日：2016-06-14
申请号：US14381063
申请日：2013-02-28
Applicant: NIKON CORPORATION
Inventor： Takatoshi Ashizawa , Kazuyasu Oone , Shinji Nishihara , Toshikazu Morioke
CPC classification number: G03B3/10 , G02B7/04 , G02B7/08 , G02B7/36 , G03B2205/0084 , H02N2/142 , H02N2/163
Abstract: Noise produced during phase-difference changes is minimized without decreasing the responsiveness of a vibration-wave motor. A lens-side MCU for a lens barrel (controls a drive apparatus that applies a drive voltage to the vibration-wave motor by outputting an A-phase drive signal and a B-phase drive signal thereto. The lens-side MCU uses, for example, a drive-voltage setting unit and a duty-cycle change unit to change the drive voltage. Also, the lens-side MCU is provided with a phase-difference change unit that changes the phase difference between the A-phase drive signal and the B-phase drive signal. When driving the vibration-wave motor, the lens-side MCU changes the drive voltage to Vreg, and when the phase-difference change unit is changing the aforementioned phase difference, the drive voltage is changed to V1, V1 being greater than zero and less than Vreg.
Abstract translation: 在相位差变化期间产生的噪声最小化，而不降低振动波马达的响应性。 用于镜筒的透镜侧MCU（控制通过向其输出A相驱动信号和B相驱动信号而向振动波马达施加驱动电压的驱动装置，透镜侧MCU用于 例如，驱动电压设定单元和占空比变更单元来变更驱动电压，另外，镜头侧MCU设置有相位差变更单元，其将A相驱动信号和 B相驱动信号，当驱动振动波马达时，透镜侧MCU将驱动电压变为Vreg，当相位差变更部改变上述相位差时，驱动电压变为V1， V1大于零且小于Vreg。
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公开(公告)号：US09350272B2
公开(公告)日：2016-05-24
申请号：US14307367
申请日：2014-06-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jun Sumioka , Kenichi Kataoka
Abstract: A driving circuit to drive a vibration member comprising an electro-mechanical energy conversion element includes a transformer connected in parallel to the electro-mechanical energy conversion element. The transformer includes a primary coil configured such that an alternating voltage is applied to the primary coil, and a secondary coil connected to the electro-mechanical energy conversion element in parallel, and an inductor connected to the primary coil in series, Parameters of the driving circuit are set such that, when a frequency of a peak voltage applied to the electro-mechanical energy conversion element is denoted by fe and a driving frequency of the vibration member is denoted by fd, a condition fe
Abstract translation: 用于驱动包括机电能转换元件的振动部件的驱动电路包括并联连接到机电能转换元件的变压器。 变压器包括初级线圈，其被配置为使得交流电压被施加到初级线圈，并且次级线圈并联连接到机电能量转换元件，并且电感器串联连接到初级线圈。驱动参数 电路被设定为使得当施加到机电能量转换元件的峰值电压的频率由fe表示并且振动部件的驱动频率由fd表示时，满足条件fe <1.5·fd。
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10.发明授权Drive control apparatus and drive control method for vibration wave driving apparatus 有权用于振动波驱动装置的驱动控制装置和驱动控制方法
公开(公告)号：US09252686B2
公开(公告)日：2016-02-02
申请号：US13575003
申请日：2011-01-25
Applicant: Kiyoshi Nitto
Inventor： Kiyoshi Nitto
CPC classification number: H02N2/142
Abstract: Provided are a drive control apparatus and a drive control method for a vibration wave driving apparatus enabling a wider dynamic range and increased quietness. The drive control apparatus for a vibration wave driving apparatus of the present invention is a drive control apparatus for a vibration wave driving apparatus in which, by providing a drive signal to a vibrator provided with an electro-mechanical energy conversion device, a driven part in contact with the vibrator is relatively moved, wherein, when the driven part is activated by changing a frequency of the drive signal, a time throughout which the drive signal is made to be in an off state is provided every time the frequency is changed.
Abstract translation: 提供了一种能够实现更宽的动态范围和增加静音的振动波驱动装置的驱动控制装置和驱动控制方法。 本发明的振动波驱动装置的驱动控制装置是用于振动波驱动装置的驱动控制装置，其中通过向设置有机电能量转换装置的振动器提供驱动信号， 与振动器的接触相对移动，其中当通过改变驱动信号的频率来驱动被驱动部分时，每当频率改变时，提供使驱动信号处于关闭状态的时间。
