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    MITIGATING CURRENT AT STARTUP OF ULTRASONICS
    36.
    发明申请
    MITIGATING CURRENT AT STARTUP OF ULTRASONICS 审中-公开

    公开(公告)号：WO2019094195A1

    公开(公告)日：2019-05-16

    申请号：PCT/US2018/057320

    申请日：2018-10-24

    Applicant: BRANSON ULTRASONICS CORPORATION

    Inventor： CALDWELL, Scott

    IPC: H01L41/04 ,  B06B1/06 ,  B29C65/00

    CPC classification number: B06B1/023 ,  B06B1/0611 ,  B06B2201/40 ,  B06B2201/71 ,  B06B2201/72 ,  B06B2201/73 ,  B23K20/106

    Abstract: Methods of mitigating current overload of an ultrasonic system having an ultrasonic stack under load at startup are provided. The methods include beginning an ultrasonic cycle in the ultrasonic system having the ultrasonic stack that runs a closed loop phase control through the weld cycle by ramping up the power of the ultrasonic stack under load. During ramping up of the power of the ultrasonic stack under load, a controller lowers the phase to a negative phase. After ramping up the power of the ultrasonic stack under load is complete, the controller raises the phase to 0 degrees and the ultrasonic stack is operating at steady state and with the phase at 0 degrees.

    ULTRASONIC TRANSDUCERS WITH PIEZOELECTRIC MATERIAL EMBEDDED IN BACKING
    37.
    发明申请
    ULTRASONIC TRANSDUCERS WITH PIEZOELECTRIC MATERIAL EMBEDDED IN BACKING 审中-公开
    超声波传感器与压电材料嵌在背面

    公开(公告)号：WO2016190993A1

    公开(公告)日：2016-12-01

    申请号：PCT/US2016/028475

    申请日：2016-04-20

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： JIN, Jing ,  GE, Yao ,  MANDAL, Batakrishna

    IPC: B06B1/06 ,  G01V1/40

    CPC classification number: B06B1/0685 ,  B06B2201/40 ,  B06B2201/73 ,  G01V1/22 ,  G01V1/40 ,  G01V2200/16

    Abstract: A system and downhole tool comprising an ultrasonic transducer with a piezoelectric material embedded in a backing and a method of determining a parameter using the ultrasonic transducer, A self-noise of the transducer can be reduced by the piezoelectric material being at least partially embedded in the backing. The ultrasonic transducer can include an encapsulating material that encapsulates the backing.

    Abstract translation: 一种包括具有嵌入背衬中的压电材料的超声波换能器的系统和井下工具以及使用超声波换能器确定参数的方法。换能器的自噪声可以通过至少部分地嵌入 后盾。 超声波换能器可以包括封装背衬的封装材料。

    APPARATUS AND METHOD FOR DRIVING AN ULTRASONIC TRANSDUCER
    38.
    发明申请
    APPARATUS AND METHOD FOR DRIVING AN ULTRASONIC TRANSDUCER 审中-公开
    用于驱动超声波传感器的装置和方法

    公开(公告)号：WO1996001701A1

    公开(公告)日：1996-01-25

    申请号：PCT/US1995008682

    申请日：1995-07-11

    Applicant: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

    Inventor： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. ,  UDPA, Satish, S. ,  VASUDEVAN, Srivatsa

    IPC: B06B01/02

    CPC classification number: B06B1/0215 ,  B06B1/0284 ,  B06B2201/40 ,  B06B2201/70 ,  Y10S73/01

    Abstract: A method and apparatus for electronically driving an ultrasonic acoustic transducer. The transducer is operable in two modes; in a first mode, the lock-in frequency of the transducer is determined; in a second mode, the lock-in frequency determined in the first mode is used to modulate a tone-burst pulse to drive the transducer in an efficient manner. Operating in the first mode, the lock-in frequency is determined by exciting the transducer with a series of tone bursts, where each tone burst comprises an electronic pulse modulated by a tone of one frequency selected from a range of frequencies, and measuring the response of the transducer to each tone burst. In an alternative embodiment, the excitation of the transducer in the first mode is provided by a signal whose frequency is swept over a range. The response of the transducer is sampled at various times during the sweep. The lock-in frequency is chosen by examining the responses and choosing the frequency which gives the best response. Operating in the second mode, the transducer is driven with an electronic tone burst generated by modulating said an electronic pulse with a tone of the determined lock-in frequency.

    Abstract translation: 一种用于电子驱动超声波换能器的方法和装置。 传感器可在两种模式下操作; 在第一模式中，确定换能器的锁定频率; 在第二模式中，使用在第一模式中确定的锁定频率来调制色调脉冲以有效地驱动换能器。 在第一模式中操作，锁定频率通过用一系列音调脉冲激发换能器来确定，其中每个音调包括由从频率范围中选择的一种频率的音调调制的电子脉冲，以及测量响应 的传感器到每个音调突发。 在替代实施例中，在第一模式中的换能器的激励由频率被扫过范围的信号提供。 在扫描过程中不同时间对传感器的响应进行采样。 通过检查响应并选择给出最佳响应的频率来选择锁定频率。 在第二模式下操作，换能器通过用所确定的锁定频率的音调调制所述电子脉冲而产生的电子音调脉冲来驱动。

    A NEBULISER AND NEBULISER CONTROL SYSTEM
    40.
    发明申请
    A NEBULISER AND NEBULISER CONTROL SYSTEM 审中-公开
    NEBULISER和NEBULISER控制系统

    公开(公告)号：WO1993009881A2

    公开(公告)日：1993-05-27

    申请号：PCT/GB1992002098

    申请日：1992-11-12

    Applicant: MEDIX ELECTRONICS LTD. ,  STIMPSON, Philip, George ,  HOPKINS, Andrew, David

    Inventor： MEDIX ELECTRONICS LTD.

    IPC: B05B17/06

    CPC classification number: B05B17/0669 ,  A61M15/0085 ,  A61M2205/3386 ,  B05B12/081 ,  B05B17/0607 ,  B05B17/0615 ,  B06B1/0238 ,  B06B2201/40 ,  B06B2201/55

    Abstract: A nebuliser for use in administering a medicament to a patient undergoing treatment for example, comprises an ultrasonic piezoelectric transducer (60) and a transducer drive system (D) which is caused to drive said transducer at or near its anti-resonant frequency. There is also provided means to optimise nebulised fluid particle size and transfer to the patients lungs for example, by operating at an anti-resonant frequency in the range of 1.36 to 1.56 MHz and having a single outlet baffle and relatively short outlet tube (24) arrangement.

    Abstract translation: 喷雾器可以施用药物的患者进行治疗，例如，包括换能器（60）和一个压电超声系统（d）用于驱动在其反共振频率或接近该驱动所述换能器在换能器 最后。 还提供了用于优化喷射流体的粒径，并将其转移到患者的肺中，例如，通过在MHz范围在1.36反谐振频率操作以1.56和A系统 使用单个出口端口偏转器和相对短的出口管道系统（24）。

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