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    Control apparatus for capacitive electromechanical transducer, and method of controlling the capacitive electromechanical transducer
    3.
    发明授权
    Control apparatus for capacitive electromechanical transducer, and method of controlling the capacitive electromechanical transducer 有权
    用于电容式机电换能器的控制装置，以及控制电容式机电换能器的方法

    公开(公告)号：US09238250B2

    公开(公告)日：2016-01-19

    申请号：US13500284

    申请日：2010-11-16

    Applicant: Atsushi Kandori ,  Makoto Takagi ,  Masao Majima ,  Kenichi Nagae

    Inventor： Atsushi Kandori ,  Makoto Takagi ,  Masao Majima ,  Kenichi Nagae

    IPC: G01S3/80 ,  B06B1/00 ,  B06B1/02 ,  G01S3/808

    CPC classification number: H02N1/006 ,  B06B1/0246 ,  B06B1/0292 ,  G01S3/8083

    Abstract: Provided is a control apparatus and control method for a capacitive electromechanical transducer with small decrease in transmission/reception efficiency, and with sets of transmission/reception characteristics with different frequency ranges. The apparatus has cells each including first and second electrodes facing each other via a gap; includes a driving/detecting unit and an external stress applying unit. The driving/detecting unit performs at least one of causing the second electrode to vibrate and transmit elastic waves by generating an AC electrostatic attractive force between the electrodes, and detecting a change of capacity between the electrodes, the change being caused by the second electrode vibrating upon receipt of elastic waves. The external stress applying unit changes the external stress applied to the second electrode. The driving/detecting unit adjusts frequency characteristics by changing a parameter defining the frequency domain used in a transmitting/receiving operation, corresponding to the change of the external stress.

    Abstract translation: 提供了一种用于容量式机电换能器的控制装置和控制方法，其具有小的发送/接收效率的降低以及具有不同频率范围的发送/接收特性的集合。 该装置具有各自包括经由间隙彼此面对的第一和第二电极的单元; 包括驱动/检测单元和外部应力施加单元。 驱动/检测单元执行以下至少一种：使第二电极通过在电极之间产生AC静电吸引力而振动并传播弹性波，并且检测电极之间的容量变化，由第二电极振动引起的变化 收到弹性波。 外部应力施加单元改变施加到第二电极的外部应力。 驱动/检测单元通过改变与发生/接收操作中使用的频域相对应的外部应力变化的参数来调整频率特性。

    CONTROL APPARATUS FOR CAPACITIVE ELECTROMECHANICAL TRANSDUCER, AND METHOD OF CONTROLLING THE CAPACITIVE ELECTROMECHANICAL TRANSDUCER
    4.
    发明申请
    CONTROL APPARATUS FOR CAPACITIVE ELECTROMECHANICAL TRANSDUCER, AND METHOD OF CONTROLLING THE CAPACITIVE ELECTROMECHANICAL TRANSDUCER 有权
    电容式电磁传感器的控制装置及其控制电容式电磁传感器的方法

    公开(公告)号：US20120194107A1

    公开(公告)日：2012-08-02

    申请号：US13500284

    申请日：2011-11-16

    Applicant: Atsushi Kandori ,  Makoto Takagi ,  Masao Majima ,  Kenichi Nagae

    Inventor： Atsushi Kandori ,  Makoto Takagi ,  Masao Majima ,  Kenichi Nagae

    IPC: H02N1/00

    CPC classification number: H02N1/006 ,  B06B1/0246 ,  B06B1/0292 ,  G01S3/8083

    Abstract: Provided is a control apparatus and control method for a capacitive electromechanical transducer with small decrease in transmission/reception efficiency, and with sets of transmission/reception characteristics with different frequency ranges. The apparatus has cells each including first and second electrodes facing each other via a gap; includes a driving/detecting unit and an external stress applying unit. The driving/detecting unit performs at least one of causing the second electrode to vibrate and transmit elastic waves by generating an AC electrostatic attractive force between the electrodes, and detecting a change of capacity between the electrodes, the change being caused by the second electrode vibrating upon receipt of elastic waves. The external stress applying unit changes the external stress applied to the second electrode. The driving/detecting unit adjusts frequency characteristics by changing a parameter defining the frequency domain used in a transmitting/receiving operation, corresponding to the change of the external stress.

    Abstract translation: 提供了一种用于容量式机电换能器的控制装置和控制方法，其具有小的发送/接收效率的降低以及具有不同频率范围的发送/接收特性的集合。 该装置具有各自包括经由间隙彼此面对的第一和第二电极的单元; 包括驱动/检测单元和外部应力施加单元。 驱动/检测单元执行以下至少一种：使第二电极通过在电极之间产生AC静电吸引力而振动并传播弹性波，并且检测电极之间的容量变化，由第二电极振动引起的变化 收到弹性波。 外部应力施加单元改变施加到第二电极的外部应力。 驱动/检测单元通过改变与发生/接收操作中使用的频域相对应的外部应力变化的参数来调整频率特性。

    Vibrator controlling circuit
    5.
    发明授权
    Vibrator controlling circuit 失效

    公开(公告)号：US06897766B2

    公开(公告)日：2005-05-24

    申请号：US10032936

    申请日：2001-12-27

    Applicant: Tadao Mandai ,  Kenji Ikeda

    Inventor： Tadao Mandai ,  Kenji Ikeda

    IPC: B06B1/02 ,  H04B3/36

    CPC classification number: B06B1/023 ,  B06B1/0246 ,  B06B2201/53 ,  B06B2201/70

    Abstract: This invention includes a square wave signal generating circuit 20 for generating a square wave signal whose frequency changes; a MOS transistor 12 which is turned on/off on the basis of the square wave signal to supply a driving current to a vibrator 14; and a frequency shift detecting circuit 24 for detecting a frequency shift between the square wave signal from the square wave generating circuit and a resonance frequency of the vibrator. The shift in the frequency generated by the square wave generating circuit is trimmed by a signal detected by the frequency shift detecting circuit.

    Vibration monitoring system and method
    6.
    发明授权
    Vibration monitoring system and method 有权
    振动监测系统及方法

    公开(公告)号：US06469418B1

    公开(公告)日：2002-10-22

    申请号：US09893111

    申请日：2001-06-27

    Applicant: James A. Katerberg ,  Joseph P. Cleary

    Inventor： James A. Katerberg ,  Joseph P. Cleary

    IPC: H01L4108

    CPC classification number: B06B1/0246 ,  B41J2/025

    Abstract: A differential circuit is used to compare the current to the drive transducers to a matched reference circuit. With the capacitive current from the piezoelectric transducer canceled out in this manner, the resulting output current provides a direct measure of the vibration amplitude of the drop generator. By adding an appropriate inductor in parallel to the capacitive piezoelectric drive transducers, the loading of the drive electronics, or oscillator, is significantly reduced.

    Abstract translation: 差分电路用于将驱动传感器的电流与匹配的参考电路进行比较。 通过以这种方式抵消来自压电换能器的电容电流，所得到的输出电流提供了液滴发生器的振动幅度的直接测量。 通过向电容式压电驱动传感器并联添加适当的电感器，驱动电子装置或振荡器的负载显着降低。

    Rapid pulse phaco power for burn free surgery
    7.
    发明申请
    Rapid pulse phaco power for burn free surgery 有权
    快速脉冲超声波功率用于无烧伤手术

    公开(公告)号：US20010003155A1

    公开(公告)日：2001-06-07

    申请号：US09764814

    申请日：2001-01-16

    Inventor： Paul W. Rockley ,  Kenneth E. Kadziauskas ,  James W. Staggs

    IPC: A61B017/22 ,  A61B017/32

    CPC classification number: A61F9/00745 ,  A61B17/320068 ,  A61B2017/0003 ,  A61B2017/00106 ,  A61B2017/00194 ,  A61B2018/00636 ,  A61B2018/00666 ,  A61F9/007 ,  B06B1/0246 ,  B06B1/0253 ,  B06B2201/55 ,  B06B2201/76

    Abstract: Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical system for ultrasonically vibrating said needle along with a power source for providing pulsed electrical power to the handpiece electrical system. Irrigation fluid is provided to the handpiece needle and aspirating fluid is removed from the handpiece needle. A determination of a voltage current phase relationship of the provided electrical power is made and in response thereto a control system varies a power level duty cycle provided to the handpiece electrical system from the power source and/or modify the aspiration flow rate. In addition, a separate input enables manual control of pulse amplitude and the control system in response to a selected amplitude determines a duty cycle of the provided pulsed electrical power.

    Abstract translation: 晶状体乳化装置包括具有针的晶状体乳化手术器具和电气系统，用于与用于向手持件电气系统提供脉冲电力的电源超声振动所述针头。 向手持针提供灌流液，并从手持针上取出吸液。 进行所提供的电力的电压电流相位关系的确定，并且响应于此，控制系统改变从电源提供给手持式电气系统的功率电平占空比和/或改变吸入流量。 此外，单独的输入允许手动控制脉冲幅度，并且响应于所选择的幅度的控制系统确定所提供的脉冲电功率的占空比。

    Cavitation controlled acoustic probe for fabric spot cleaning and moisture monitoring
    8.
    发明授权
    Cavitation controlled acoustic probe for fabric spot cleaning and moisture monitoring 失效
    气蚀控制声探头，用于织物点清洗和水分监测

    公开(公告)号：US5676015A

    公开(公告)日：1997-10-14

    申请号：US301194

    申请日：1994-09-06

    Applicant: Shuh-Haw Sheen ,  Hual-Te Chien ,  Apostolos C. Raptis

    Inventor： Shuh-Haw Sheen ,  Hual-Te Chien ,  Apostolos C. Raptis

    IPC: B06B1/02 ,  G01N29/11 ,  G01N5/02

    CPC classification number: G01N29/11 ,  B06B1/0246 ,  B06B2201/71 ,  G01N2291/015 ,  G01N2291/0237 ,  G01N2291/02491 ,  G01N2291/02845 ,  G01N2291/0421

    Abstract: A method and apparatus are provided for monitoring a fabric. An acoustic probe generates acoustic waves relative to the fabric. An acoustic sensor, such as an accelerometer is coupled to the acoustic probe for generating a signal representative of cavitation activity in the fabric. The generated cavitation activity representative signal is processed to indicate moisture content of the fabric. A feature of the invention is a feedback control signal is generated responsive to the generated cavitation activity representative signal. The feedback control signal can be used to control the energy level of the generated acoustic waves and to control the application of a cleaning solution to the fabric.

    Abstract translation: 提供了一种用于监测织物的方法和装置。 声学探针产生相对于织物的声波。 诸如加速度计的声学传感器耦合到声学探针，用于产生表示织物中气蚀活性的信号。 产生的气蚀活性代表信号被处理以指示织物的水分含量。 本发明的一个特征是响应于产生的气穴活动代表信号产生反馈控制信号。 反馈控制信号可用于控制产生的声波的能量水平并且控制清洁溶液在织物上的应用。

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