| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 一种拖曳式的自发电水下声源发声装置 | CN201610051451.7 | 2016-01-26 | CN105632481A | 2016-06-01 | 宋雯婧; 欧阳凌浩; 张承科; 何小军; 田振华; 王盟; 刘金勇; 贺平; 刘启帮 |
| 本发明公开了一种拖曳式的自发电水下声源发声装置。本发明不仅通过螺旋桨叶轮转动，螺旋桨叶轮的转动带动水下拖体内部的交流发电机工作，交流发电机产生的交流电经过整流器与稳压器，转变为直流电，为水下拖体内的信号发生器与功率放大器提供电能，产生低频声信号；而且，还由于螺旋桨叶轮的转动，导致与水介质发生摩擦，进而引起叶片的振动产生螺旋桨噪声。这样一来，发射换能器产生的低频声信号与螺旋桨噪声的声场相叠加，构成涵盖了低、中频段的水下声源，起到了一举多得的作用。 | ||||||
| 2 | 一种针状水声换能器中的新型压电复合薄膜的制备方法 | CN201610957770.4 | 2016-10-27 | CN106571423A | 2017-04-19 | 何晶靖; 刘晓鹏; 方小亮; 张卫方; 娄伟涛; 董邦林 |
| 一种针状水声换能器中的新型压电复合薄膜的制备方法，步骤如下：(一)压电复合薄膜的制备:制备原材料复合浆料；磁力搅拌；真空脱泡；将原始浆料放入脱泡机中，将脱泡机抽至真空状态，脱泡30min；流延成膜；将脱泡后的混合浆料加入流延机的料槽中，调节流延板的平整性，将刮刀的高度设置为300μm，流延速度为0.2mm/s，将底板的温度设置为100℃，并开启排风扇，进行流延；保温干燥；将成型后的薄膜恒温在100℃下干燥1小时后制得新型压电复合薄膜；(二)压电复合薄膜的油浴极化；本发明所述的压电复合薄膜的制备方法，工艺性好，易于实现；制出的压电复合薄膜与一般的复合薄膜相比具有良好的柔韧性和更好的压电性能。 | ||||||
| 3 | ACOUSTIC TRANSDUCERS USING A WORKING FLUID | EP97931893.0 | 1997-06-20 | EP0906611A1 | 1999-04-07 | STANGROOM, James, E., ER Fluid Developments Ltd.; WALTON, Rex, ER Fluid Developments Limited |
| The invention relates to the use, in an acoustic transducer (1) of an ER fluid as the working fluid; to an acoustic transducer (1) using an ER fluid as its working fluid; to the use of an ER fluid as the working fluid of a vibrator; to a vibrator employing an ER fluid as its working fluid. | ||||||
| 4 | Underwater audible signalling device | US822095 | 1992-01-17 | US5200932A | 1993-04-06 | Bo H. G. Ljung |
| A signalling device with a long audible range is described, which is intended for underwater communication between divers. The device consists of a compact and lightweight horn and a rubber bulb. The horn, which works independently from a diver's supply of breathing air, is filled with water and operated by manually squeezing the rubber bulb. | ||||||
| 5 | Acoustic apparatus | US3516052D | 1965-01-27 | US3516052A | 1970-06-02 | BOUYOUCOS JOHN V |
| 6 | Radiator apparatus for underwater sound generators | US34451264 | 1964-02-12 | US3257988A | 1966-06-28 | SAWYER ESTHER T |
| 7 | Resonant underwater hydrodynamic acoustic projector | US18744462 | 1962-04-13 | US3246289A | 1966-04-12 | MELLEN ROBERT H |
| 8 | Survey apparatus | US22871462 | 1962-10-05 | US3191713A | 1965-06-29 | GREEN WILLIAM G |
| 9 | Production of high frequency waves in a liquid medium | US2709348 | 1948-05-14 | US2559864A | 1951-07-10 | GEORGE FIRTH FRANCIS |
| 10 | Horn device | US36372440 | 1940-10-31 | US2263342A | 1941-11-18 | LEWIS NORMAN F |
| 11 | LOW-FREQUENCY BROADBAND SOUND SOURCE FOR UNDERWATER NAVIGATION AND COMMUNICATION | US15952334 | 2018-04-13 | US20190057680A1 | 2019-02-21 | Andrey K. Morozov |
| An underwater sound source includes an acoustical driver, a controller of the acoustical driver, and a resonant tube acoustically coupled to the acoustical driver. The resonant tube has a pair of slotted portions, in which each slotted portion is disposed along the length of the resonant tube at a location corresponding to a node of a harmonic of the resonant tube. The sound system is configured to emit an output signal within a bandwidth defined by a dual resonance characteristic of the resonator tube. The sound source may also include a pair of coaxial tubular sleeves disposed around the resonant tube, each sleeve configured to slidably cover one of the slotted portions, and tune the resonance frequency of the tube over a wide range. At a high frequency end, when slots are uncovered, the frequency response of the resonant tube obtains a dual-resonant form. | ||||||
| 12 | HYDROACOUSTIC DEVICE | US15739249 | 2016-05-12 | US20180190255A1 | 2018-07-05 | Stanislav Mikhailovich Dmitriev; Alexander Vasilievich Dikarev |
| The invention relates to hydroacoustics and more specifically to hydroacoustic devices comprising, disposed in a single housing, a converter of liquid-medium oscillations and electrical signals, capable of receiving and/or transmitting hydroacoustic signals, the converter being disposed on a board which is connected to a switch cable for providing power and transmitting electrical signals, and may be used as a receiver and/or transmitter of hydroacoustic signals in water. According to the invention, the housing of the to hydroacoustic device is formed by the outer surfaces of the converter and board, and by a protective material which coats all of said surfaces, said material allowing for a transmission of hydroacoustic oscillations and being capable of transitioning from a highly-elastic or viscous-flow state to a solid state. The achieved technical result consists in simplifying the design of the device. | ||||||
| 13 | Fluidborne sound projector with sweep cleaning facilities | US09962230 | 2001-09-26 | US06751161B1 | 2004-06-15 | John W. Henry, IV; David B. Larrabee; William F. Flickinger; Michael J. Grady; Debra M. Kenney; Kevin E. Crouchley |
| An acoustic projector device having a piston exposed to pressure balanced air and water in an acoustically ideal position thereof within a piston chamber enclosing sleeve disposed in an outer housing to which deaerating water is selectively supplied in surrounding relation to the piston chamber sleeve while in communication with one side of the piston through axial slots in the sleeve uncovered by displacement of the piston from said acoustically ideal position. | ||||||
| 14 | Fluidborne sound projector | US09559051 | 2000-04-27 | US06320821B1 | 2001-11-20 | Jeffrey S. Goldring; David B. Larrabee; John W. Henry, IV |
| A fluidborne projector of sound derived from an electro-mechanical noise source translates acoustical energy through a piston subjected to balanced pressures of gas and liquid to enabled dynamic displacement thereof. Such displacement of the piston to a static position is regulated by controlled pressurization of gas, mechanically limited to prevent damage from changing pressures exerted on the piston. | ||||||
| 15 | Sting oscillator | US4750570 | 1970-06-18 | US3908786A | 1975-09-30 | CURTO PAUL A |
| A sting oscillator that produces sonic oscillations from a steady state fluid flow. A rigid sting is mounted concentrically within a resonant cavity in either a three-dimensional conical form or a two-dimensional wedge flow form. Fluid vortices shed from the sting cause the cavity to trigger into oscillation, creating alternating pressure waves that are dispersed in all directions. The oscillatory pressure waves can be transduced into useful electrical or mechanical power to drive any desired external device. The high pressure, large volume input flow capabilities of the sting oscillator provides power outputs heretofore unobtainable with fluidic devices. Several possible embodiments of transducers coupled with the device of the present invention are presented herein.
|
||||||
| 16 | Hydroacoustic drive mechanism having a flexural seal | US3587519D | 1969-08-04 | US3587519A | 1971-06-28 | UTTERBACK MAX G |
| A HYDROACOUSTIC TRANSDUCER IS DESCRIBED HAVING A RADIATOR IN THE FORM OF A FLEXING DISC AND AN ACOUSTIC DRIVE MEMBER FOR COUPLING A FLUID-FILLED CAVITY, THE PRESSURIZED FLUID IN WHICH IS ACOUSTICALLY MODULATED, TO THE RADIATOR. THE DRIVE MECHANISM INCLUDES A PISTON WHICH IS GUIDED IN AN OPENING IN THE HOUSING WHICH EXTENDS INTO THE CAVITY CONTAINING THE PRESSURE-MODULATED FLUID. AN ANNULAR-SEAL IS PROVIDED IN THE OPENING AND EXTENDS PARTIALLY INTO THE PISTON AND INTO THE WALL OF THE OPENING. THE WALL OF THE OPENING AND THE PISTON IS CONSTRUCTED TO PROVIDE A CLAMPING STRUCTURE SO THAT FLUID IS PREVENTED FROM LEAVING THE CAVITY WHILE THE PISTON IS PERMITTED TO VIBRATE IN RESPONSE TO THE ACOSTIC ENERGY OF THE MODULATED FLUID.
|
||||||
| 17 | Hydraulic underwater sound transducer | US81523459 | 1959-05-22 | US3100022A | 1963-08-06 | CLARK CHESTER A |
| 18 | Osmotic acoustic source | US15713909 | 2017-09-25 | US09984671B1 | 2018-05-29 | Anthony A Ruffa |
| An acoustic projector is provided with an enclosure having a semi-permeable membrane on one side. High salinity liquid is injected at the enclosure to increase osmotic pressure. Valves thereafter allow free flooding between the enclosure and surrounding seawater to equalize the pressure. Transient pressure in the enclosure generates a pressure pulse that propagates from the semi-permeable membrane. The timing of the injection by salt jets and the free-flooding valves enables a repeatable acoustic pulse at low frequencies and a determinable upper frequency. If the acoustic projector is mounted to be conformal to the hull of a ship; the acoustic projector includes a free-flowing region on one side of a semi-permeable membrane and valves. When the valves are opened; the other side of the membrane is free-flooded. Salt jets inject high salinity liquid into an enclosure to increase pressure with the result of an acoustic pressure pulse. | ||||||
| 19 | Acoustic source reactive to tow cable strum | US13623932 | 2012-09-21 | US08773954B1 | 2014-07-08 | Anthony A. Ruffa |
| A device operable as a transducer is provided for use in which the device is mountable on a tow cable which in operation extends underwater substantially throughout the length thereof. The device comprises a head mass encompassing the tow cable wherein the head mass reacts to a wave-like strumming configuration about an axis of the tow cable thereby causing the tow cable to be displaced in one direction, along the axis and then in an opposite direction such that a low frequency continuous sound wave radiates from the head mass. | ||||||
| 20 | Method and apparatus for producing shock waves for medical applications | US10176647 | 2002-06-24 | US08092401B2 | 2012-01-10 | Reiner Schultheiss |
| The invention describes a method and an apparatus for producing shock waves in a fluid for medical applications. In a work volume filled with fluid, the pressure is increased mechanically by pulses. The pressure pulse produced in the work volume is transferred to the fluid volume by means of a partition, in order to produce shock waves in the fluid volume. | ||||||
QQ群二维码
意见反馈
意见反馈