公开(公告)号：US20170146642A1

公开(公告)日：2017-05-25

申请号：US15402900

申请日：2017-01-10

Applicant: FLIR Systems, Inc.

Inventor： Paul Stokes ,  William Sayer ,  Paul Muller ,  David Wellcome ,  Gordon Pope

IPC: G01S7/52 ,  G10K11/00 ,  G01S15/10 ,  G01S15/96

CPC classification number: G01S7/52004 ,  B06B1/0284 ,  B06B2201/74 ,  G01S7/52006 ,  G01S7/521 ,  G01S7/524 ,  G01S7/54 ,  G01S7/6218 ,  G01S7/6245 ,  G01S15/003 ,  G01S15/025 ,  G01S15/104 ,  G01S15/89 ,  G01S15/96 ,  G10K11/006 ,  G10K11/34 ,  G10K11/35

Abstract: Techniques are disclosed for systems and methods to provide accurate and reliable compact sonar systems for mobile structures. A sonar system includes multiple sensor channels, each comprising a sonar transmitter and a sonar receiver, and a logic device configured to provide control signals and receive sensor signals from the sensor channels. The logic device is configured to provide transmission signals to sonar transducer assemblies, where signal patterns of the transmission signals are differentiated based at least in part on frequency content. Acoustic returns are processed using the signal patterns to reduce inter-channel pickup between the sensor channels. Resulting sonar data and/or imagery may be displayed to a user and/or used to adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

公开(公告)号：US07093343B2

公开(公告)日：2006-08-22

申请号：US10865601

申请日：2004-06-10

Applicant: Jason W Osborn

Inventor： Jason W Osborn

IPC: H04R31/00

CPC classification number: B06B1/0611 ,  B06B1/0603 ,  B06B2201/74 ,  G10K9/125 ,  Y10T29/49002 ,  Y10T29/49005 ,  Y10T29/4908

Abstract: An acoustic transducer design having a slotted oval-shaped shell and active transducer elements located on the inner surface of the shell is disclosed. The design provides a high power, ultra-low frequency oval projector having a number of applications, including underwater seismic prospecting and fish mitigation.

Abstract translation: 公开了一种具有开槽椭圆形壳体和位于壳体内表面上的主动换能器元件的声学换能器设计。 该设计提供了具有多种应用的大功率，超低频椭圆投影机，包括水下地震勘探和鱼类减轻。

公开(公告)号：US20060164919A1

公开(公告)日：2006-07-27

申请号：US11338801

申请日：2006-01-25

Applicant: Kenichi Watanabe ,  Yasushi Nishimori ,  Kouzo Tokuyama ,  Koji Tokuda ,  Ryouichi Suetoshi

Inventor： Kenichi Watanabe ,  Yasushi Nishimori ,  Kouzo Tokuyama ,  Koji Tokuda ,  Ryouichi Suetoshi

IPC: G10K11/00

CPC classification number: B06B1/0622 ,  B06B1/0269 ,  B06B1/0633 ,  B06B1/0637 ,  B06B2201/74 ,  G01S7/521 ,  G01S15/96 ,  G10K11/34 ,  G10K11/346 ,  G10K11/348 ,  H04R1/44

Abstract: An acoustic transducer has an upper cylindrical portion and a lower hemispherical portion on which a plurality of transducer elements are arranged. The transducer elements on the cylindrical portion are arranged in such a way that six transducer elements adjacent to any one of the transducer elements are located at vertices of a regular hexagon and regular hexagons adjoining in a horizontal direction have sides which are oriented parallel to an axial direction (vertical direction) of the cylindrical portion. The transducer elements on the hemispherical portion are arranged at vertices of spherical triangles constituting each of spherical pentagons obtained by projecting regular pentagons together forming one half of a regular dodecahedron onto a hemispherical surface of the hemispherical portion in which the half of the regular dodecahedron is inscribed, as well as at equal division points taken on individual sides of each of the spherical triangles and at the centers of gravity of small spherical triangles formed at intersections of parallel arcs joining the equal division points of each of the spherical triangles.

Abstract translation: 声换能器具有上圆柱形部分和下半球部分，多个换能器元件布置在该下半球部分上。 圆柱形部分上的换能器元件被布置成使得与任何一个换能器元件相邻的六个换能器元件位于正六边形的顶点，并且在水平方向上邻接的正六边形具有平行于轴向 方向（垂直方向）。 半球形部分上的传感器元件被布置在球形三角形的顶点处，该三角形构成通过将正五面体投影在一起形成正半形面的一半而形成的每个球形五边形，半球形部分的半球形表面被刻划在半球形部分的一半上， 以及在每个球形三角形的各个侧面上以及在连接每个球形三角形的等分点的平行弧的交点处形成的小球形三角形的重心处相等的分割点。

公开(公告)号：US20040240628A1

公开(公告)日：2004-12-02

申请号：US10855481

申请日：2004-05-28

Inventor： Tatsuo Hayashi

IPC: H04B010/00 ,  H04B011/00 ,  H04B001/02 ,  H02N002/00 ,  H01L041/04 ,  H01L041/06 ,  H01L041/08 ,  H01L041/18

CPC classification number: G10K11/346 ,  B06B1/0238 ,  B06B1/0269 ,  B06B2201/74 ,  G01S7/521 ,  G01S7/524

Abstract: A driver circuit for generating a driving pulse signal to activate a vibrating element includes a half-bridge circuit formed essentially of first and second switching devices to which drive signals are supplied through a driver interface. A driving voltage is supplied to a source of the first switching device, a drain of the second switching device is grounded, and an output terminal of the half-bridge circuit is connected to the vibrating element. The half-bridge circuit is controlled such that the two switching devices alternately turn ON. When the first switching device is ON, the driving voltage is supplied as the driving pulse signal to the vibrating element, and when the second switching device is ON, the vibrating element and the second switching device together form a low-impedance closed loop. As the switching devices are caused to alternately turn ON at specific intervals, the vibrating element vibrates at a natural resonant frequency, transmitting thereby an ultrasonic signal.

Abstract translation: 用于产生驱动脉冲信号以激活振动元件的驱动电路包括基本上由第一和第二开关器件形成的半桥电路，驱动信号通过驱动器接口提供给驱动器电路。 驱动电压被提供给第一开关装置的源极，第二开关装置的漏极接地，并且半桥电路的输出端子连接到振动元件。 半桥电路被控制，使得两个开关装置交替地接通。 当第一开关器件为ON时，将驱动电压作为驱动脉冲信号提供给振动元件，并且当第二开关器件导通时，振动元件和第二开关器件一起形成低阻抗闭环。 由于开关器件以特定的间隔交替地接通，所以振动元件以固有的谐振频率振动，由此发送超声波信号。

公开(公告)号：US20030160546A1

公开(公告)日：2003-08-28

申请号：US10304976

申请日：2002-11-26

Inventor： Jason W. Osborn

IPC: H01L041/04

CPC classification number: B06B1/0611 ,  B06B1/0603 ,  B06B2201/74 ,  G10K9/125 ,  Y10T29/49002 ,  Y10T29/49005 ,  Y10T29/4908

Abstract: An acoustic transducer design having a slotted oval-shaped shell and active transducer elements located on the inner surface of the shell is disclosed. The design provides a high power, ultra-low frequency oval projector having a number of applications, including underwater seismic prospecting and fish mitigation.

Abstract translation: 公开了一种具有开槽椭圆形壳体和位于壳体内表面上的主动换能器元件的声学换能器设计。 该设计提供了具有多种应用的大功率，超低频椭圆投影机，包括水下地震勘探和鱼类减轻。

公开(公告)号：US5969621A

公开(公告)日：1999-10-19

申请号：US59160

申请日：1998-04-13

Applicant: Igor Getman ,  Sergej Lopatin

Inventor： Igor Getman ,  Sergej Lopatin

IPC: B06B1/02 ,  B06B1/06 ,  G01F23/296 ,  G08B21/00

CPC classification number: B06B1/0622 ,  B06B1/0692 ,  G01F23/2967 ,  B06B2201/74

Abstract: An apparatus for establishing and/or monitoring a pre-determined filling level in a container is provided, in which the reception signal (E) corresponds to the desired measurement signal and in which a fixed phase difference (.DELTA..phi..sub.R), which is independent of the oscillation quality of the apparatus, exists between the transmission signal and the reception signal (E) at the resonant frequency (f.sub.r) of the mechanical oscillatory structure (1). The apparatus comprises a mechanical oscillatory structure (1) and a piezoelectric element (2), which has at least three regions, a first region (I) having a transmission electrode (21), a second region (II) having a first reception electrode (22) and a third region (III) having a second reception electrode (23), the two reception electrodes (22, 23) having an identical form and being arranged symmetrically with respect to one another and to the transmission electrode (21), and in the first and in the second region (I, II), the piezoelectric element (2) having a polarization which is in the opposite direction to a polarization of the third region (III). The reception signal (E) is equal to the difference between a first signal (E.sub.1), which is present at the first reception electrode (22), and a second signal (E.sub.2), which is present at the second reception electrode (23).

Abstract translation: 提供了一种用于在容器中建立和/或监视预定填充水平的装置，其中接收信号（E）对应于期望的测量信号，其中固定相位差（DELTA phi R）是独立的 在机械振荡结构（1）的谐振频率（fr）处存在传输信号和接收信号（E）之间的装置的振荡质量。 该装置包括具有至少三个区域的机械振荡结构（1）和压电元件（2），具有透射电极（21）的第一区域（I），具有第一接收电极 （22）和具有第二接收电极（23）的第三区域（III），所述两个接收电极（22,23）具有相同的形状并且相对于彼此对称地布置到所述发送电极（21）， 并且在第一和第二区域（I，II）中，压电元件（2）具有与第三区域（III）的极化方向相反的偏振。 接收信号（E）等于存在于第一接收电极（22）的第一信号（E1）与存在于第二接收电极（23）的第二信号（E2）之间的差， 。

公开(公告)号：US5103432A

公开(公告)日：1992-04-07

申请号：US639843

申请日：1991-01-10

Applicant: Joseph L. Percy

Inventor： Joseph L. Percy

IPC: B06B1/02 ,  G10K11/00

CPC classification number: B06B1/0207 ,  G10K11/006 ,  B06B2201/74

Abstract: A low frequency, high powered underwater sound source includes a housing ing disposed therein, a loudspeaker, a bladder disposed over the loudspeaker for containing a pressurized non-liquid sound transmission medium, a fill system for filling the bladder with a sound transmission medium, a vent system for venting the bladder of a sound transmission medium, a differential pressure sensor for comparing the pressure in the bladder with the ambient underwater pressure, a signal generating system to generate an acoustic signal at the loudspeaker, and a control system for controlling operation of the fill system, the vent system, the differential pressure sensor and the signal generating system.

Abstract translation: 一种低频大功率水下声源包括：一个设置在其中的壳体，一个扬声器，一个设置在扬声器上方的用于容纳加压的非液体声音传播介质的气囊，一个用声音传播介质填充膀胱的填充系统， 用于排气声传播介质的气囊的通气系统，用于将膀胱中的压力与环境水下压力进行比较的差压传感器，用于在扬声器处产生声信号的信号发生系统，以及控制系统， 填充系统，排气系统，差压传感器和信号发生系统。

公开(公告)号：US4644505A

公开(公告)日：1987-02-17

申请号：US619436

申请日：1984-06-11

Applicant: Stephen E. Spychalski

Inventor： Stephen E. Spychalski

IPC: B06B1/02 ,  H03H5/00 ,  H04R3/04

CPC classification number: H03H7/38 ,  B06B1/0215 ,  H04R3/04 ,  B06B2201/50 ,  B06B2201/74

Abstract: A broadband matching network for a Helmholtz resonator transducer is a series RL matching network capable of withstanding a high power level. The usable acoustic broadwidth is expanded to produce a symmetrical output over a broad frequency band.

Abstract translation: 用于亥姆霍兹谐振器的宽带匹配网络是能够承受高功率电平的RL系列匹配网络。 扩展了可用的声宽度，以在宽频带上产生对称输出。

公开(公告)号：US20240251681A1

公开(公告)日：2024-07-25

申请号：US18394433

申请日：2023-12-22

Applicant: The United States of America, as Represented by the Secretary of the Navy

Inventor： Matthew Johnson ,  William Riggins ,  Scott L. Small

IPC: H10N30/057 ,  B06B1/06 ,  B32B37/00 ,  B32B37/10

CPC classification number: H10N30/057 ,  B06B1/0611 ,  B32B37/0046 ,  B32B37/10 ,  B06B2201/74 ,  B32B2311/12 ,  B32B2315/02 ,  B32B2457/00

Abstract: Provided is a fixture for concentrically aligning and assembling a Ceramic Stack Assembly transducer during manufacturing. The CSA fixture comprises a base, a top compression cap, a central rod and a fastener, one or more alignment posts, and a driving wedge. The base further includes a groove to accept and align a transducer rear-centering ring at a central axis of the fixture. The transducer rear-centering ring supports one or more copper foil or ceramic rings during assembly. The alignment posts and driving wedge apply radial pressure to the copper foil or ceramic rings during assembly to force concentric alignment. The top compression cap, central rod, and fastener compress and stress the CSA Ceramic once assembled. The fixture simultaneously provides concentric alignment, foil alignment and provides a mechanism for stressing the CSA. A method of use is also provided.

公开(公告)号：US20230173553A1

公开(公告)日：2023-06-08

申请号：US18104668

申请日：2023-02-01

Applicant: Isabela V. Perdomo

Inventor： Isabela V. Perdomo

IPC: B08B3/12 ,  B06B1/02 ,  B63B59/08

CPC classification number: B08B3/12 ,  B06B1/0276 ,  B63B59/08 ,  B06B2201/74 ,  B63B59/04

Abstract: The method and system uses ultrasound (US) transducers in contact with an inboard surface underwater portions of marine vessels or structures. By first digitally generating disruptive, multi-frequency, interfering US waveform signals (complex waveforms, typically replicating a Bessel function) and then converting the signals into analog, the transducers generate disruptive, multi-frequency, interfering US waveforms through the underwater portions of the marine vessels and structures which waveforms disrupt unwanted marine growth on the water-side of the vessel or structure. The digital signals, and also the analog signals, are complex waveform signals, typically produced with a Bessel function. The US transducers are either circular membrane transducers or surface transducers. A computer processor coupled to a memory, generates the complex waveform signals fed to the US transducers.