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    • 3. 发明授权
    • Control apparatus for capacitive electromechanical transducer, and method of controlling the capacitive electromechanical transducer
    • 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
    • US09238250B2
    • 2016-01-19
    • US13500284
    • 2010-11-16
    • Atsushi KandoriMakoto TakagiMasao MajimaKenichi Nagae
    • Atsushi KandoriMakoto TakagiMasao MajimaKenichi Nagae
    • G01S3/80B06B1/00B06B1/02G01S3/808
    • H02N1/006B06B1/0246B06B1/0292G01S3/8083
    • 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.
    • 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。
    • 4. 发明申请
    • CONTROL APPARATUS FOR CAPACITIVE ELECTROMECHANICAL TRANSDUCER, AND METHOD OF CONTROLLING THE CAPACITIVE ELECTROMECHANICAL TRANSDUCER
    • 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
    • US20120194107A1
    • 2012-08-02
    • US13500284
    • 2011-11-16
    • Atsushi KandoriMakoto TakagiMasao MajimaKenichi Nagae
    • Atsushi KandoriMakoto TakagiMasao MajimaKenichi Nagae
    • H02N1/00
    • H02N1/006B06B1/0246B06B1/0292G01S3/8083
    • 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.
    • 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。
    • 5. 发明授权
    • Sensor
    • 传感器
    • US08393211B2
    • 2013-03-12
    • US12104356
    • 2008-04-16
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • G01C19/56
    • G01P15/097G01C19/5719
    • A sensor includes a detecting oscillator supported in such a manner that the detecting oscillator is allowed to oscillate; first and second electrodes; a detecting electrode facing the first and second electrodes; and signal supplying units configured to supply first and second AC signals respectively to the first and second electrodes. Either the first and second electrodes or the detecting electrode is provided on the detecting oscillator. The first and second AC signals respectively supplied to the first and second electrodes by the signal supplying units cause the detecting oscillator to be maintained at a neutral position for detection without being displaced when no physical quantity is input. When the detecting oscillator is displaced, an input physical quantity is detected on the basis of a signal corresponding to charges induced at the detecting electrode by the first and second AC signals supplied respectively to the first and second electrodes.
    • 传感器包括以允许检测振荡器振荡的方式支持的检测振荡器; 第一和第二电极; 面向所述第一和第二电极的检测电极; 以及信号供给单元,被配置为分别向第一和第二电极提供第一和第二AC信号。 第一和第二电极或检测电极都设置在检测振荡器上。 分别由信号提供单元提供给第一和第二电极的第一和第二AC信号使检测振荡器保持在中性位置用于检测,而不会在不输入物理量的情况下移位。 当检测振荡器移位时,基于分别提供给第一和第二电极的第一和第二AC信号,根据与在检测电极处感应的电荷相对应的信号来检测输入物理量。
    • 6. 发明申请
    • SENSOR
    • 传感器
    • US20080264167A1
    • 2008-10-30
    • US12104356
    • 2008-04-16
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • G01P3/44
    • G01P15/097G01C19/5719
    • A sensor includes a detecting oscillator supported in such a manner that the detecting oscillator is allowed to oscillate; first and second electrodes; a detecting electrode facing the first and second electrodes; and signal supplying units configured to supply first and second AC signals respectively to the first and second electrodes. Either the first and second electrodes or the detecting electrode is provided on the detecting oscillator. The first and second AC signals respectively supplied to the first and second electrodes by the signal supplying units cause the detecting oscillator to be maintained at a neutral position for detection without being displaced when no physical quantity is input. When the detecting oscillator is displaced, an input physical quantity is detected on the basis of a signal corresponding to charges induced at the detecting electrode by the first and second AC signals supplied respectively to the first and second electrodes.
    • 传感器包括以允许检测振荡器振荡的方式支持的检测振荡器; 第一和第二电极; 面向所述第一和第二电极的检测电极; 以及信号供给单元,被配置为分别向第一和第二电极提供第一和第二AC信号。 第一和第二电极或检测电极都设置在检测振荡器上。 分别由信号提供单元提供给第一和第二电极的第一和第二AC信号使检测振荡器保持在中性位置用于检测,而不会在不输入物理量的情况下移位。 当检测振荡器移位时,基于分别提供给第一和第二电极的第一和第二AC信号,根据与在检测电极处感应的电荷相对应的信号来检测输入物理量。
    • 7. 发明授权
    • Angular velocity sensor
    • 角速度传感器
    • US08336380B2
    • 2012-12-25
    • US12304966
    • 2007-07-26
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • G01C19/56
    • G01C19/5712
    • Provided is an angular velocity sensor including: a reference vibrator supported so as to generate reciprocating rotational vibration about a first rotation axis as a center; a detection vibrator supported by the reference vibrator so as to generate reciprocating rotational vibration about a second rotation axis, which is different from the first rotation axis, as a center; a reference vibration generating unit for allowing the reference vibrator to generate reciprocating rotational vibration; and a detection unit for detecting a displacement amount of the detection vibrator with respect to the reference vibrator, which is in association with the reciprocating rotational vibration of the detection vibrator.
    • 提供了一种角速度传感器,包括:参考振动器,被支撑为以围绕第一旋转轴线为中心产生往复旋转振动; 由参考振动器支撑的检测振动器作为中心产生围绕与第一旋转轴不同的第二旋转轴线的往复旋转振动; 参考振动发生单元,用于允许参考振动器产生往复旋转振动; 以及检测单元,用于检测与检测振动器的往复旋转振动相关的检测振动器相对于参考振动器的位移量。
    • 8. 发明申请
    • ANGULAR VELOCITY SENSOR
    • 角速度传感器
    • US20090193893A1
    • 2009-08-06
    • US12304966
    • 2007-07-26
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • Atsushi KandoriMasao MajimaKenichi Nagae
    • G01C19/56
    • G01C19/5712
    • Provided is an angular velocity sensor including: a reference vibrator supported so as to generate reciprocating rotational vibration about a first rotation axis as a center; a detection vibrator supported by the reference vibrator so as to generate reciprocating rotational vibration about a second rotation axis, which is different from the first rotation axis, as a center; a reference vibration generating unit for allowing the reference vibrator to generate reciprocating rotational vibration; and a detection unit for detecting a displacement amount of the detection vibrator with respect to the reference vibrator, which is in association with the reciprocating rotational vibration of the detection vibrator.
    • 提供了一种角速度传感器,包括:参考振动器,被支撑为以围绕第一旋转轴线为中心产生往复旋转振动; 由参考振动器支撑的检测振动器作为中心产生围绕与第一旋转轴不同的第二旋转轴线的往复旋转振动; 参考振动发生单元,用于允许参考振动器产生往复旋转振动; 以及检测单元,用于检测与检测振动器的往复旋转振动相关的检测振动器相对于参考振动器的位移量。
    • 9. 发明申请
    • CONTROL APPARATUS AND METHOD FOR ELECTROMECHANICAL TRANSDUCER DEVICE, AND MEASUREMENT SYSTEM
    • 电动传感器装置的控制装置和方法及测量系统
    • US20120227498A1
    • 2012-09-13
    • US13508437
    • 2010-11-11
    • Atsushi KandoriMasao Majima
    • Atsushi KandoriMasao Majima
    • G01N29/36
    • B06B1/0292G01N21/1702G01N29/2418
    • There is a case in which a generated acoustic wave is decreased owing to the attenuation of light, whereby a desired output is not obtained from an electromechanical transducer device that receives the acoustic wave. The control apparatus for controlling an electromechanical transducer device of the present invention includes: a conversion unit that converts a current output from a first electrode of the electromechanical transducer device to a voltage; a DC voltage applying unit that applies a DC voltage to a second electrode arranged with a gap between itself and the first electrode; and a generation unit that generates a control signal which makes at least one of the DC voltage and a conversion ratio for converting the current to the voltage be changed, on the basis of information about an elapsed time from a point in time at which an inspection object was irradiated with light.
    • 存在由于光的衰减而产生的声波降低的情况,从而从接收声波的机电换能器装置不能获得期望的输出。 本发明的机电换能器装置的控制装置包括:转换单元,其将从机电换能器装置的第一电极输出的电流转换为电压; 直流电压施加单元,其向在其自身和所述第一电极之间设置有间隙的第二电极施加DC电压; 以及生成单元,其基于关于从检查的时间点起的经过时间的信息,生成将DC电压和用于将电流转换为电压的转换比中的至少一个变化的控制信号 物体用光照射。