APPARATUS AND METHOD FOR GENERATING SINUSOIDAL WAVES, AND SYSTEM FOR DRIVING PIEZO ACTUATOR USING THE SAME
    21.
    发明申请
    APPARATUS AND METHOD FOR GENERATING SINUSOIDAL WAVES, AND SYSTEM FOR DRIVING PIEZO ACTUATOR USING THE SAME 有权
    用于产生SINUSOIDAL WAVE的装置和方法以及使用它的驱动PIEZO致动器的系统

    公开(公告)号:US20150168989A1

    公开(公告)日:2015-06-18

    申请号:US14199727

    申请日:2014-03-06

    Inventor: Gyu Won KIM

    Abstract: An apparatus for generating sinusoidal waves may include: a look-up table storage unit storing a look-up table including a plurality of sampling points determined based on a base frequency and a sampling frequency; a sinusoidal wave generating unit calculating an integer ratio of a target frequency to the base frequency and obtaining sampling points from the look-up table by reflecting the integer ratio so as to generate a sinusoidal wave; and a correction control unit calculating noise information in the generated sinusoidal wave, and controlling the sinusoidal wave generating unit to correct the sampling frequency if the noise information fails to meet a predetermined requirement.

    Abstract translation: 用于产生正弦波的装置可以包括:查找表存储单元,其存储包括基于基准频率和采样频率确定的多个采样点的查找表; 正弦波产生单元,计算目标频率与基本频率的整数比,并且通过反映整数比率从查找表获得采样点,以产生正弦波; 以及校正控制单元,计算所生成的正弦波中的噪声信息,并且如果噪声信息不能满足预定的要求,则控制正弦波产生单元校正采样频率。

    ULTRASONIC MEASUREMENT DEVICE, ULTRASONIC HEAD UNIT, ULTRASONIC PROBE, AND ULTRASONIC IMAGE DEVICE
    22.
    发明申请
    ULTRASONIC MEASUREMENT DEVICE, ULTRASONIC HEAD UNIT, ULTRASONIC PROBE, AND ULTRASONIC IMAGE DEVICE 有权
    超声波测量装置,超声波头单元,超声波探头和超声波图像装置

    公开(公告)号:US20140211592A1

    公开(公告)日:2014-07-31

    申请号:US14164579

    申请日:2014-01-27

    Inventor: Takao MIYAZAWA

    CPC classification number: B06B1/0629 B06B1/0215 B06B2201/20 B06B2201/55

    Abstract: An ultrasonic measurement device includes: an ultrasonic element array that has at least one reception column connected to a reception terminal, and equipped with ultrasonic elements for reception and that has at least one transmission column connected to a transmission terminal, and equipped with ultrasonic elements for transmission; a reception circuit that receives a signal from the reception terminal; and a transmission circuit that outputs a signal to the transmission terminal. The reception column and the transmission column are alternately arranged every column, or any multiple of columns in a scanning direction. The ultrasonic elements for reception and the ultrasonic elements for transmission are arranged along a orthogonal direction that is orthogonal to the scanning direction. The reception terminal is arranged at one end of the array in the orthogonal direction, and the transmission terminal is arranged at the other end of the array in that direction.

    Abstract translation: 超声波测量装置包括:超声波元件阵列,其具有连接到接收终端的至少一个接收列,并且配备有用于接收的超声波元件,并且具有连接到传输终端的至少一个传输列,并且配备有用于 传输; 接收来自接收终端的信号的接收电路; 以及向发送端子输出信号的发送电路。 接收列和发送列交替地布置在扫描方向上的每列或任何多个列。 用于接收的超声波元件和用于透射的超声波元件沿着与扫描方向正交的正交方向布置。 接收端子在正交方向上配置在阵列的一端,并且发送端子沿着该方向排列在阵列的另一端。

    PORTABLE ULTRASONIC IMAGING PROBE INCLUDING TRANSDUCER ARRAY
    24.
    发明申请
    PORTABLE ULTRASONIC IMAGING PROBE INCLUDING TRANSDUCER ARRAY 审中-公开
    便携式超声波成像探头,包括传感器阵列

    公开(公告)号:US20140031693A1

    公开(公告)日:2014-01-30

    申请号:US13951805

    申请日:2013-07-26

    Inventor: Roman Solek

    Abstract: The invention provides a portable ultrasonic imaging probe directly connectable to an off-the-shelf laptop computer. The probe produces raw digitized data comprising envelope detected ultrasound echo data from an array of ultrasound transducers, and transmits the data to the host computer thereby enabling the host computer to form real-time ultrasonic images of human tissue without the need for any additional electronics. In particular embodiments, the probe includes a plurality of transmit switches configured to connect a transmitting group of the ultrasound transducers to a pulser; a plurality of receive switches configured to connect a receiving group of the ultrasound transducers to analog summing, amplification and signal processing circuitry; and a transmit/receive controller which selects which of said ultrasound transducers are in the transmitting group and which of said ultrasound transducers are in the receiving group. The ultrasound transducers may be conventional or micromachined ultrasound transducers.

    Abstract translation: 本发明提供一种可直接连接到现成的膝上型计算机的便携式超声波成像探头。 该探头产生原始数字化数据,其包括来自超声换能器阵列的包络检测的超声回波数据,并将该数据发送到主计算机,从而使得主计算机能够形成人体组织的实时超声波图像,而不需要任何附加电子装置。 在特定实施例中,探针包括多个发射开关,其被配置为将超声换能器的发射组连接到脉冲发生器; 多个接收开关,被配置为将所述超声换能器的接收组连接到模拟求和,放大和信号处理电路; 以及发射/接收控制器,其选择所述超声换能器中的哪一个位于所述发射组中,并且所述超声换能器中的哪一个在所述接收组中。 超声换能器可以是常规的或微加工的超声换能器。

    ULTRASOUND PROBE AND ULTRASOUND DIAGNOSIS APPARATUS
    25.
    发明申请
    ULTRASOUND PROBE AND ULTRASOUND DIAGNOSIS APPARATUS 审中-公开
    超声探头和超声诊断装置

    公开(公告)号:US20140005551A1

    公开(公告)日:2014-01-02

    申请号:US13962654

    申请日:2013-08-08

    Abstract: An ultrasound probe includes a piezoelectric material, a signal electrode provided on the piezoelectric material, and a ground electrode provided on the piezoelectric material. Ultrasound waves are emitted from the piezoelectric material by applying a voltage between the signal electrode and the ground electrode. A switching element switches a connection between the signal electrode and the ground electrode from a closed state to an open state, and vice versa, in accordance with a control signal for controlling whether or not to emit the ultrasound waves. The switching element changes from the closed state to the open state in accordance with the control signal for emitting the ultrasound waves, and changes from the open state to the closed state in accordance with the control signal for suspending emission of the ultrasound waves. The ultrasound probe can maintain the reliability of the piezoelectric material when the temperature is high or changes suddenly.

    Abstract translation: 超声波探头包括压电材料,设置在压电材料上的信号电极和设置在压电材料上的接地电极。 通过在信号电极和接地电极之间施加电压,从压电材料发射超声波。 根据用于控制是否发射超声波的控制信号,开关元件将信号电极和接地电极之间的连接从关闭状态切换到打开状态,反之亦然。 根据用于发射超声波的控制信号,开关元件根据用于发射超声波的控制信号从闭合状态改变到打开状态,并且根据用于暂停发射超声波的控制信号从断开状态变为闭合状态。 当温度高或突然变化时,超声波探头可以保持压电材料的可靠性。

    Driving method for piezoelectric vibrator, and dust removing device and ultrasonic motor using the driving method
    26.
    发明授权
    Driving method for piezoelectric vibrator, and dust removing device and ultrasonic motor using the driving method 有权
    使用驱动方法的压电振动器的驱动方法和除尘装置以及超声波马达

    公开(公告)号:US08610331B2

    公开(公告)日:2013-12-17

    申请号:US13273172

    申请日:2011-10-13

    Inventor: Hajime Kanazawa

    CPC classification number: B06B1/0261 B06B2201/55 H01L41/042 H02N2/0075

    Abstract: A driving method for a piezoelectric vibrator including a driving piezoelectric element and a detection piezoelectric element formed of the same material as a material of the driving piezoelectric element, for driving the piezoelectric vibrator by applying, to the driving piezoelectric element, an alternating voltage having a frequency close to a resonance frequency of the piezoelectric vibrator, the driving method including, in the case where it is detected based on variations in output detected from the detection piezoelectric element that at least one of variations in mechanical resistance of the piezoelectric vibrator and variations in piezoelectric characteristic of a piezoelectric element have occurred, applying an alternating voltage adjusted in accordance with the variations in mechanical resistance of the piezoelectric vibrator and/or the variations in piezoelectric characteristic of the piezoelectric element, to thereby adjust an electrical input to the piezoelectric vibrator to suppress variations in vibration amplitude of the piezoelectric vibrator.

    Abstract translation: 一种压电振动器的驱动方法,包括驱动压电元件和由与驱动压电元件的材料相同的材料形成的检测压电元件,用于通过向驱动压电元件施加具有 频率接近压电振动器的谐振频率,该驱动方法包括在基于从检测压电元件检测到的输出的变化来检测的情况下,压电振动器的机械电阻的变化和变化中的至少一个 发生压电元件的压电特性,施加根据压电振动器的机械阻抗的变化调整的交流电压和/或压电元件的压电特性的变化,从而调节对压电振动器的电输入 以抑制压电振动器的振幅的变化。

    FOREIGN SUBSTANCE REMOVAL UNIT AND OPTICAL APPARATUS INCLUDING FOREIGN SUBSTANCE REMOVAL UNIT
    28.
    发明申请
    FOREIGN SUBSTANCE REMOVAL UNIT AND OPTICAL APPARATUS INCLUDING FOREIGN SUBSTANCE REMOVAL UNIT 有权
    外部物质拆卸单元和光学设备,包括外部物质拆卸单元

    公开(公告)号:US20120188639A1

    公开(公告)日:2012-07-26

    申请号:US13356927

    申请日:2012-01-24

    Abstract: A foreign substance removal unit includes an optical member, disposed in an optical path, which is rectangular-shaped and in which an optical effective area for a light flux to pass through is set, and a piezoelectric element including a piezoelectric member, and a driving electrode, and a sensor electrode formed on a surface of the piezoelectric member. The piezoelectric element is stuck to a surface of the optical member outside the optical effective area and along one side of the optical member. The sensor electrode is formed on the surface of the piezoelectric member to be positioned within a range of the optical effective area in a side direction of the optical member to which the piezoelectric element is stuck.

    Abstract translation: 异物去除单元包括光学构件,其设置在矩形形状的光路中,并且其中设置有用于通过光束的光学有效面积,以及包括压电构件的压电元件和驱动 电极和形成在压电部件的表面上的传感器电极。 压电元件粘附到光学构件的表面,并且沿着光学构件的一侧粘附在光学有效区域的外部。 传感器电极形成在压电元件的表面上,以位于光学部件的粘附有光学部件的侧面的光学有效面积的范围内。

    GIGASONIC BRUSH FOR CLEANING SURFACES
    29.
    发明申请
    GIGASONIC BRUSH FOR CLEANING SURFACES 失效
    用于清洁表面的GIGASONIC BRUSH

    公开(公告)号:US20120024313A1

    公开(公告)日:2012-02-02

    申请号:US12847621

    申请日:2010-07-30

    Applicant: Abbas Rastegar

    Inventor: Abbas Rastegar

    Abstract: An apparatus, system, and method for a Gigasonic Brush for cleaning surfaces is presented. One embodiment of the system includes an array of acoustic transducers coupled to a substrate where the individual acoustic transducers have sizes in the range of 9 um2 to 250,000 um2. The system may include a positioning mechanism coupled to at least one of a target surface or the array of acoustic transducers, and configured to position the array of acoustic transducers within 1 millimeter of a target surface. The system may also include a cleaning liquid supply arranged to provide cleaning liquid for coupling the array of acoustic transducers to the target surface. The system may further include a controller coupled to the array of acoustic transducers and configured to activate the array of acoustic transducers.

    Abstract translation: 介绍了一种用于清洁表面的Gigasonic Brush的设备,系统和方法。 该系统的一个实施例包括耦合到衬底的声学换能器阵列,其中各个声学换能器的尺寸在9um2至250,000um2的范围内。 系统可以包括耦合到目标表面或声换能器阵列中的至少一个的定位机构,并且被配置为将声换能器阵列定位在目标表面的1毫米内。 该系统还可以包括布置成提供用于将声换能器阵列耦合到目标表面的清洁液体的清洁液体供应。 系统还可以包括耦合到声换能器阵列并被配置为激活声换能器阵列的控制器。

    Ultrasonic sensor transmitting and receiving ultrasonic frequencies adjusted according to temperature
    30.
    发明授权
    Ultrasonic sensor transmitting and receiving ultrasonic frequencies adjusted according to temperature 失效
    超声波传感器发送和接收根据温度调节的超声波频率

    公开(公告)号:US07607352B2

    公开(公告)日:2009-10-27

    申请号:US11642712

    申请日:2006-12-21

    Applicant: Noboru Endou

    Inventor: Noboru Endou

    Abstract: Components of an ultrasonic sensor are contained in a cylindrical casing having an end wall closing one end of the casing. A vibrator such as a piezoelectric element is disposed in the casing in contact with the end wall. An integrated circuit chip that includes a signal generator, a filter device and a temperature sensor is contained in the casing. Vibrations generated in the vibrator are transferred to the end wall that transmits ultrasonic waves. Ultrasonic waves received by the end wall are converted into electrical signals in the vibrator. Frequency of the transmitting signals and a frequency region of the signals to be received are controlled according to the ambient temperature, so that they always coincide with a resonant frequency of the end wall which changes according to the ambient temperature. Thus, high transmitting/receiving efficiency is always realized, irrespective of the ambient temperature.

    Abstract translation: 超声波传感器的部件容纳在具有封闭壳体的一端的端壁的圆筒形壳体中。 诸如压电元件的振动器设置在壳体中与端壁接触。 包括信号发生器,过滤器装置和温度传感器的集成电路芯片包含在壳体中。 在振动器中产生的振动被传递到发射超声波的端壁。 由端壁接收的超声波在振动器中被转换为电信号。 根据环境温度来控制发射信号的频率和要接收的信号的频率区域,使得它们总是与根据环境温度变化的端壁的谐振频率重合。 因此,无论环境温度如何,始终实现高发射/接收效率。

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