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    SYSTEM, COMPUTER-IMPLEMENTED METHOD, COMPUTER PROGRAM AND NON-VOLATILE DATA CARRIER FOR GENERATING AN ACOUSTIC CHANNEL FOR LEVITATION OF MATTER
    21.
    发明公开
    SYSTEM, COMPUTER-IMPLEMENTED METHOD, COMPUTER PROGRAM AND NON-VOLATILE DATA CARRIER FOR GENERATING AN ACOUSTIC CHANNEL FOR LEVITATION OF MATTER 审中-公开

    公开(公告)号：US20240062740A1

    公开(公告)日：2024-02-22

    申请号：US18038699

    申请日：2021-12-03

    Applicant: MYVOX AB

    Inventor： Josef HANSSON

    IPC: G10K15/04 ,  B06B1/02

    CPC classification number: G10K15/04 ,  B06B1/0223 ,  B06B2201/40

    Abstract: An acoustic levitation system contains an acoustic transducer array emitting acoustic energy of periodically varying intensity. The acoustic transducer array includes a set of transducer elements arranged on a surface extending in at least two dimensions. The transducer elements are controllable in response to a control signal so as to emit the acoustic energy at a wavelength and a phase delay determined by the control signal. A controller generates the control signal such that an acoustic channel comprising one or more high-pressure region enclosing a continuous pressure minimum region that extends along a defined channel path from a start position to an end position. The continuous pressure minimum region enclosed by the one or more high-pressure region represents a trap volume suitable for carrying, levitating and translating matter in a contactless manner.

    Vibration unit
    22.
    发明授权
    Vibration unit 有权

    公开(公告)号：US11648585B2

    公开(公告)日：2023-05-16

    申请号：US16648592

    申请日：2018-09-13

    Applicant: TDK CORPORATION

    Inventor： Takuto Horii ,  Atsushi Ezawa

    IPC: H01L41/04 ,  B06B1/06 ,  B06B1/02 ,  H01L41/08

    CPC classification number: B06B1/0253 ,  B06B1/0611 ,  H01L41/042 ,  H01L41/0825 ,  B06B2201/40

    Abstract: In a vibration unit, a first electrode of a sensor circuit of a control unit is electrically connected to a first external electrode of a first piezoelectric element, a second electrode of the sensor circuit is electrically connected to a second external electrode of the first piezoelectric element, a first electrode of a drive circuit is electrically connected to a first external electrode of a second piezoelectric element, and a second electrode of the drive circuit is electrically connected to a second external electrode of the second piezoelectric element. Only a relatively small voltage induced by an electromotive force occurring due to the flexure of the first piezoelectric element is applied to the sensor circuit. In addition, only a relatively large drive voltage to be applied to the second piezoelectric element is applied to the drive circuit.

    Method and circuit arrangement for determining a working range of an ultrasonic vibrating unit
    24.
    发明授权
    Method and circuit arrangement for determining a working range of an ultrasonic vibrating unit 有权

    公开(公告)号：US09656299B2

    公开(公告)日：2017-05-23

    申请号：US14426854

    申请日：2013-09-09

    Applicant: Weber Ultrasonics GmbH

    Inventor： Xenia Bruhn ,  Ralf Broszeit

    IPC: G01R27/02 ,  B06B1/02 ,  B23K20/10 ,  G01R31/28

    CPC classification number: B06B1/0207 ,  B06B1/0261 ,  B06B2201/40 ,  B23K20/10 ,  G01R27/02 ,  G01R31/2829

    Abstract: Provided is a method for determining an operating range of an ultrasonic vibrating unit (7), which ultrasonic vibrating unit (7) is supplied with electrical power by a generator (2) via an output (2a) and is excited to vibrate ultrasonically, wherein at least constituent parts of the ultrasonic vibrating unit (7), preferably an ultrasonic transducer (8) contained therein, and constituent parts of the generator (2), preferably a matching network (2b) on the output side, form a tuned circuit (2c, 2d). The method is characterized in that a measuring circuit (3) is connected upstream of the output (2a) of the generator (2), via the measuring circuit (3), a voltage (U) is applied to the tuned circuit, and by the measuring circuit (3), at least the phase, preferably magnitude and phase, of an impedance of the tuned circuit are measured, and at least the phase, preferably the phase and magnitude, of the impedance are evaluated in order to determine the working range. The invention further relates to a circuit arrangement for carrying out the aforementioned method.

    CIRCUIT DEVICE, ELECTRONIC APPARATUS AND MOVING OBJECT
    26.
    发明申请
    CIRCUIT DEVICE, ELECTRONIC APPARATUS AND MOVING OBJECT 有权
    电路设备，电子设备和移动对象

    公开(公告)号：US20160020379A1

    公开(公告)日：2016-01-21

    申请号：US14800738

    申请日：2015-07-16

    Applicant: Seiko Epson Corporation

    Inventor： Hisahiro ITO ,  Shoichiro KASAHARA

    IPC: H01L41/09 ,  H01L23/00

    CPC classification number: H01L24/49 ,  B06B1/0207 ,  B06B1/0238 ,  B06B1/0648 ,  B06B2201/40 ,  B06B2201/55 ,  B06B2201/70 ,  H01L24/48 ,  H01L2224/05554 ,  H01L2224/4813 ,  H01L2224/48227 ,  H01L2224/49171 ,  H01L2924/00014 ,  H01L2924/141 ,  H01L2924/143 ,  H01L2924/15153 ,  H01L2924/1517 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

    Abstract: In order to reduce crosstalk between analog and digital signals, a circuit device includes a vibrator element, a semiconductor device, and a package. In the semiconductor device, an analog pad is provided along a first side facing in a first direction when the semiconductor device is seen in plan view. In addition, a digital pad is provided along aside facing in a second direction opposite to the first direction, that is, a second side facing the first side. In the package, an analog terminal which is connected to the analog pad is provided on a first side of the package facing in the first direction. In addition, a digital terminal which is connected to the digital pad is provided on a second side of the package facing in the second direction.

    Abstract translation: 为了减少模拟和数字信号之间的串扰，电路装置包括振动元件，半导体器件和封装。 在半导体器件中，当在平面图中看到半导体器件时，沿着朝向第一方向的第一侧设置模拟焊盘。 此外，沿与第一方向相反的第二方向（即，面向第一侧的第二侧）面向第一侧面设置数字焊盘。 在封装中，连接到模拟焊盘的模拟端子设置在面向第一方向的封装的第一侧上。 另外，连接到数字式焊盘的数字端子设置在面向第二方向的封装的第二面上。

    Ultrasonic Sensor Microarray and Method of Manufacturing Same
    27.
    发明申请
    Ultrasonic Sensor Microarray and Method of Manufacturing Same 有权
    超声波传感器微阵列及其制造方法相同

    公开(公告)号：US20150290678A1

    公开(公告)日：2015-10-15

    申请号：US14437616

    申请日：2013-11-01

    Applicant: UNIVERSITY OF WINDSOR

    Inventor： Sazzadur Chowdhury

    IPC: B06B1/02

    CPC classification number: B06B1/0292 ,  B06B2201/20 ,  B06B2201/40 ,  B06B2201/70

    Abstract: A sensor assembly including one or more capacitive micromachined ultrasonic transducer (CMUT) microarray modules which are provided with a number of individual transducers. The microarray modules are arranged to simulate or orient individual transducers in a hyperbolic paraboloid geometry. The transducers/sensor are arranged in a rectangular or square matrix and are activatable individually, selectively or collectively to emit and received reflected beam signals at a frequency of between about 100 to 170 kHz.

    Abstract translation: 一种传感器组件，包括一个或多个电容式微加工超声波换能器（CMUT）微阵列模块，其设置有多个单独的换能器。 微阵列模块被布置成在双曲抛物面几何中模拟或定向各个换能器。 传感器/传感器被布置成矩形或矩形矩阵，并且可以单独地，选择性地或集体地激活以以大约100到170kHz之间的频率发射和接收反射光束信号。

    ULTRASOUND WAVE GENERATING APPARATUS
    28.
    发明申请
    ULTRASOUND WAVE GENERATING APPARATUS 审中-公开
    超声波发生装置

    公开(公告)号：US20150236236A1

    公开(公告)日：2015-08-20

    申请号：US14702553

    申请日：2015-05-01

    Applicant: Cornell University

    Inventor： George K. LEWIS ,  William OLBRICHT

    IPC: H01L41/04 ,  A61N7/00

    CPC classification number: A61N7/00 ,  A61N7/02 ,  B06B1/0261 ,  B06B2201/40 ,  B06B2201/76

    Abstract: In one embodiment, there is provided in an ultrasound wave generating apparatus a low output impedance transistor based driver circuit that has the ability to apply a drive signal at a frequency corresponding to an ultrasound transducer's resonant frequency. The low output impedance of the driver circuit allows for a substantial portion of the energy to be delivered to the ultrasound transducer and converted to ultrasound energy. The power transfer efficiency of the presented circuit allows ultrasound drivers to be powered by portable battery packs, while still delivering high ultrasound acoustic power. The ultrasound driver can provide energy in sufficient amounts making it suitable for a range of ultrasound driving applications including but not limited to therapeutic low and high power clinical systems, high intensity focused ultrasound HIFU, acoustical welding, industrial inspection, and other various forms of low-to-high power acoustic devices.

    Abstract translation: 在一个实施例中，在超声波发生装置中设置有基于低输出阻抗晶体管的驱动器电路，其具有以对应于超声换能器的共振频率的频率施加驱动信号的能力。 驱动器电路的低输出阻抗允许将大部分能量输送到超声换能器并转换成超声能量。 所提出的电路的功率传输效率允许超声波驱动器由便携式电池组供电，同时仍然提供高超声波声功率。 超声波驱动器可以提供足够的能量，使其适用于一系列超声波驱动应用，包括但不限于治疗性低功率和高功率临床系统，高强度聚焦超声HIFU，声学焊接，工业检查和其他各种形式的低 高功率声学设备。

    Ultrasonic sensor transmitting and receiving ultrasonic frequencies adjusted according to temperature
    30.
    发明申请
    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：US20070157728A1

    公开(公告)日：2007-07-12

    申请号：US11642712

    申请日：2006-12-21

    Applicant: Noboru Endou

    Inventor： Noboru Endou

    IPC: G01H13/00 ,  G01N29/00

    CPC classification number: G01N29/24 ,  B06B1/0261 ,  B06B2201/40 ,  B06B2201/55 ,  G01N29/225 ,  G01N29/326 ,  G01N29/348 ,  G10K9/122

    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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