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公开(公告)号：US4820753A
公开(公告)日：1989-04-11
申请号：US168211
申请日：1988-03-15
CPC分类号： G10K11/006 , B29C70/025 , C08J5/04 , C08J5/046 , C08L21/00 , B29K2021/00 , B29K2105/12 , B29K2105/16 , C08J2321/00
摘要： A sonic window suitable for use in sonar applications wherein an elastomer such as natural or synthetic natural rubbers, a low air entrapping fiber or fibril used for reinforcement, fillers, and thermosetting resins are formed into desired window configuration. The low air entrapment associated with the fiber or fibrils produces a remarkably sonicly transparent window.
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公开(公告)号：US4751014A
公开(公告)日：1988-06-14
申请号：US865066
申请日：1986-05-19
申请人： Hirofumi Ozeki , Hideo Sobue
发明人： Hirofumi Ozeki , Hideo Sobue
CPC分类号： H01L41/1875 , H01L41/183
摘要： A piezoelectric ceramic composite material useful for use in underwater transducers or hydrophones, including an elastic organic matrix, and piezoelectric ceramic powder dispersed in the substrate and having a composition:Pb.sub.1-x TiO.sub.3-xwherein x is a number of 0.005 to 0.12.
摘要翻译： 一种可用于水下换能器或水听器的压电陶瓷复合材料，包括弹性有机基质和分散在基底中的压电陶瓷粉末，并具有组成：Pb1-xTiO3-x，其中x为0.005至0.12的数。
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公开(公告)号：US4709359A
公开(公告)日：1987-11-24
申请号：US392657
申请日：1982-06-28
申请人： Rayford A. Loftin
发明人： Rayford A. Loftin
CPC分类号： G01V1/186 , B06B1/0603 , G01V1/181
摘要： A cylindrical shell enclosure has mounted interiorly thereof in cantilever manner four upstanding laminated planar flexible resilient electroacoustic transducer reeds. A separate inertia weight is affixed to the top edge of each reed. An acoustic wave impinging on the side wall of the submerged enclosure will cause relative movement between the enclosure and a weight if the wave direction has a component transverse to the plane of the reed on which the weight is mounted. The reeds are mounted in quadrature so that wave direction detection is provided by comparing the electrical outputs of the reeds. Viscoelastic damping pads may be affixed between the side ends of each of the weights and respective upstanding rigid arms secured to an interior surface of the enclosure.
摘要翻译： 圆柱形外壳以悬臂方式安装在其内部四个直立的层叠平面柔性弹性电声换能器簧片。 每个筘的顶部边缘上附有独立的惯性重量。 如果波浪方向具有横向于安装有重物的簧片的平面的分量，则撞击在浸没的外壳的侧壁上的声波将引起外壳和重物之间的相对运动。 簧片安装成正交，通过比较芦苇的电气输出来提供波方向检测。 粘弹性阻尼垫可以固定在每个重物的侧端和固定到外壳的内表面的相应直立的刚性臂之间。
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公开(公告)号：US4694440A
公开(公告)日：1987-09-15
申请号：US722473
申请日：1985-04-12
申请人： Koji Ogura , Hideo Sobue
发明人： Koji Ogura , Hideo Sobue
CPC分类号： B06B1/0651
摘要： An underwater acoustic wave transmitting and receiving unit having excellent characteristics for both transmitting and receiving and providing stable characteristics over long operating periods. A plate-shaped polarized piezoelectric resonator is provided formed of at least one plate made of a complex of fluorosilicon rubber and lead titanate. The resonator is sealed in a rubber casing filled with an insulating liquid matching the water around the casing in acoustic impedance.
摘要翻译： 一种水下声波发射和接收单元，具有优异的发射和接收特性，并在长时间的运行期间提供稳定的特性。 提供由至少一个由氟硅橡胶和钛酸铅的复合体制成的板形成的板状极化压电谐振器。 谐振器被密封在橡胶外壳中，该橡胶外壳填充有与声学阻抗中的壳体周围的水相匹配的绝缘液体。
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公开(公告)号：US4682363A
公开(公告)日：1987-07-21
申请号：US737009
申请日：1985-05-23
申请人： Jerry Goldfarb , Bruce Klenoff
发明人： Jerry Goldfarb , Bruce Klenoff
CPC分类号： H04R5/0335 , H04B1/44 , H04R1/44 , H04R1/1016 , H04R1/1075
摘要： An amphibious personal audio system is provided. The system includes a band for encircling a person's end. An audio device is secured to the band for generating an audio signal. The audio device is hermetically sealed. Speakers are electrically coupled to the audio device for converting the audio signal to an audio sound. The speakers and the electrical coupling are hermetically sealed. Earpiece assemblies are acoustically coupled to the speakers for transmitting the sound to a person's ears. The earpiece assemblies have an opening for transmission of sound to the user's ear canal, the earpiece assembly being adapted to substantially hermetically seal the user's ear canal around the opening.
摘要翻译： 提供水陆两用的个人音响系统。 该系统包括一个环绕人的乐队。 音频设备被固定到频带以产生音频信号。 音频设备是密封的。 扬声器电耦合到音频设备，用于将音频信号转换成音频声音。 扬声器和电气联轴器密封。 耳机组件声学耦合到扬声器，用于将声音传输到人的耳朵。 听筒组件具有用于将声音传输到用户的耳道的开口，耳机组件适于基本上气密地密封使用者的耳道周围的开口。
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公开(公告)号：US4667915A
公开(公告)日：1987-05-26
申请号：US806285
申请日：1985-12-06
CPC分类号： B63B17/00 , G01D11/30 , G10K11/006 , B63B2017/0054 , B63B2213/00
摘要： A marine sensor mounting mechanism is disclosed and comprises a mounting plate (2) securable to a boat, a two-branch bifurcated bracket (4) having one branch attached to the plate and a two-arm toggle link (6) having one arm pivotally attached to the plate and the second arm pivotally attached to the second branch of the bifurcated bracket. The arms of the link are paired for pivotal movement for a first open position when the sensor is in an inoperative position to a second closed position when the sensor is in an operative position.
摘要翻译： 公开了一种海洋传感器安装机构，其包括可固定于船的安装板（2），具有一个分支连接到该板上的双分支分叉支架（4）和一个双臂肘节连杆（6） 附接到板，第二臂枢转地连接到分叉支架的第二分支。 当传感器处于操作位置时，当传感器处于非操作位置到第二关闭位置时，连杆的臂成对用于第一打开位置的枢转运动。
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公开(公告)号：US4618949A
公开(公告)日：1986-10-21
申请号：US590734
申请日：1984-03-19
申请人： Clive R. B. Lister
发明人： Clive R. B. Lister
摘要： A self-orienting, directionally sensitive particle velocity transducer with an axially magnetized magnet which, displaced by gravity, floats off-center in a chamber filled with ferromagnetic fluid. Wire coils affixed coaxially to the chamber ends asymmetrically intersect the magnet's flux lines. Axial chamber rotation results in gravitationally induced sideways movement of the magnet to maintain its equilibrium position. An impinging sound wave causes relative movement between the low inertia chamber-coil assembly and the high inertia magnet, thereby inducing a voltage in the coils--a relatively high voltage for vertical movement due to vertical assymetry, but a relatively low voltage for horizontal movement due to horizontal symmetry. Axial sensitivity is low because the ferromagnetic fluid filling the narrow gap between the magnet and the chamber ends resists relative axial movement and any induced voltages in the coils cancel. Substitution of an eccentrically weighted, axially polarized, composite magnet divided into oppositely polarized halves allows a smaller chamber and makes assymetry/symmetry independent of gravitationally induced displacement, thus allowing configuration for any direction of sensitivity.
摘要翻译： 具有轴向磁化的磁体的自定向的方向敏感的粒子速度传感器，其被重力移位，在填充有铁磁流体的腔室中偏离偏心。 与腔室端同轴固定的线圈与磁体的磁通线不对称地相交。 轴向室旋转导致重力引起磁体的侧向运动以保持其平衡位置。 冲击声波引起低惯性室线圈组件和高惯性磁体之间的相对运动，从而引起线圈中的电压 - 由于垂直方差而垂直运动的相对较高的电压，而是由于相对较低的水平运动电压 水平对称。 轴向灵敏度低，因为填充磁体和腔室端之间的窄间隙的铁磁流体抵抗相对的轴向运动，并且线圈中的任何感应电压都消除。 将偏心加权的轴向极化的复合磁体替换为相对极化的半部分允许更小的腔室，并且使得不依赖于重力引起的位移的不对称/对称，从而允许对任何灵敏度方向进行配置。
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公开(公告)号：US4593385A
公开(公告)日：1986-06-03
申请号：US496124
申请日：1983-05-19
申请人： Jacques R. Chamuel
发明人： Jacques R. Chamuel
CPC分类号： G01H9/004 , H04R23/008
摘要： An optoacoustic hydrophone for detection of acoustic waves in a fluid such as sea water. The hydrophone includes an optical waveguide comprising a fiber optic input lead, a fiber optic sensor, and a fiber optic exit lead, an optical subassembly and a signal processor. A coherent light beam generated by the optical subassembly is transmitted through the input lead and the sensor which is disposed in the fluid. Acoustic waves in the fluid modulate the index of refraction of the fiber optic sensor thereby modulating the transmitted light beam. The modulated light beam is directed through the fiber optic exit lead to a focus on one of two photodetectors. The other photodetector is oriented for receipt of light reflected from a partially reflective mirror disposed between the input fiber optic lead and the fiber optic sensor. The two light beams impinging on respective photodetector are combined with unmodulated light beams of slightly different frequencies to produce an interference pattern at each photodetector. Each photodetectors produces an electrical signal representative of the interference pattern and the respective electrical signals are applied to a phase meter. The phase meter produces an output signal representative of the acoustic wave alone which corresponds to the difference between the two electrical signals provided by respective photodetectors. The disclosed optoacoustic hydrophone effectively cancels common mode lead noise resulting from towage of the optical waveguide through the fluid. Pressure effects in optical fibers created by other physical mechanisms are also sensed by the present apparatus.
摘要翻译： 用于检测诸如海水的流体中的声波的光声水听器。 水听器包括包括光纤输入引线，光纤传感器和光纤出口引线，光学子组件和信号处理器的光波导。 由光学子组件产生的相干光束通过设置在流体中的输入引线和传感器传输。 流体中的声波调制光纤传感器的折射率，从而调制透射光束。 调制的光束被引导通过光纤出口导线，以聚焦在两个光电探测器之一上。 另一光电检测器被定向以接收从设置在输入光纤引线和光纤传感器之间的部分反射镜反射的光。 入射到相应光电检测器上的两个光束与稍微不同频率的未调制光束组合以在每个光电检测器处产生干涉图案。 每个光电检测器产生表示干涉图案的电信号，并且相应的电信号被施加到相位计。 相位计产生表示单独的声波的输出信号，其对应于由各个光电检测器提供的两个电信号之间的差。 所公开的光声水听器有效地消除了通过流体引导光波导引起的共模引线噪声。 本发明的装置还可以感测到由其它物理机构产生的光纤中的压力效应。
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公开(公告)号：US4538250A
公开(公告)日：1985-08-27
申请号：US453305
申请日：1982-12-27
CPC分类号： G01V1/201
摘要： A construction and method of producing an elongated underwater acoustic array includes a plurality of interconnected hydrophones and circuit modules protected by a plastic foam cushioning sheath, covered with a tough, essentially acoustically transparent hose-like jacket and containing a plurality of aramid fiber ropes as strength members to carry the tensile loads on the array. An elongated tube-like fabric retaining member is interposed between the sheath and the exterior hose jacket which is longitudinally stitched to provide a plurality of spaced parallel tubes, each of which is of just sufficient diameter to contain one of said strength members. The strength members are terminated at a connector at each end of the array, and a spacer member is placed near each connector to spread the strength member ropes to the desired diameter. The spacer members and the adjacent ends of the retaining members are each cemented to the strength member ropes.
摘要翻译： 一种生产细长水下声学阵列的结构和方法包括多个互连的水听器和电路模块，该塑料泡沫缓冲护套由塑料泡沫缓冲护套保护，被坚固的，基本上是声学透明的软管状护套覆盖，并且包含多根芳纶纤维绳作为强度 成员承载阵列上的拉伸载荷。 细长的管状织物保持构件被插入在护套和外部软管护套之间，纵向缝合以提供多个间隔开的平行管，每个管具有足够的直径以容纳其中一个强度构件。 强度构件端接在阵列的每个端部处的连接器处，并且间隔构件放置在每个连接器附近以将强度构件绳索扩展到期望的直径。 保持构件的隔离构件和相邻的端部各自胶合到强度构件绳索上。
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公开(公告)号：US4456797A
公开(公告)日：1984-06-26
申请号：US421813
申请日：1982-11-18
申请人： Eric E. Olsen
发明人： Eric E. Olsen
CPC分类号： H04R1/44 , G11B25/063 , G11B33/025 , H04R1/1016 , H04R1/1058 , H04R5/0335
摘要： A waterproof pouch to house a personal stereo cassette tape player or radio electrically connected by means of a retractile cable to a pair of waterproof headphones. The waterproof pouch has a closure enabling the pouch to repeatedly be hermetically sealed and reopened. A tubular belt loop is attached to one side of the pouch and secures a belt and buckle combination which fastens around the user's waist. A connector permanently and hermetically secures the electrical cable extending from the exterior to the interior of the pouch. The electrical cable in a coiled retractile form extends from the connector and splits into a Y-shape with both legs electrically attached to the waterproof headphones. Both waterproof headphones consist of a rigid disc with a waterproof earphone mounted on one side and a bracket mounted on the opposite side such that an elastic headband extends through the bracket. The headband is adjustable in length and secures the headphones to the user's head. Both waterproof earphones have pliable sleeves which form a hermetic seal with the user's ear canal to prevent water from entering the ear canal and disrupting the audio program heard by the user. A thin plastic membrane is positioned behind the diaphragm of the earphone to waterproof the earphone when not positioined in the user's canal. This invention enables the user to listen to a high fidelity stereo audio program while active in the water.
摘要翻译： 一个防水袋，用于容纳个人立体声盒式磁带播放器或收音机通过一根伸缩电缆电连接到一对防水耳机。 防水袋具有封闭件，使得袋可重复地被密封并重新打开。 管状皮带环连接到袋的一侧，并固定紧固在使用者腰部周围的皮带和带扣组合。 连接器永久地并且气密地固定从外部延伸到袋的内部的电缆。 螺旋收缩形式的电缆从连接器延伸并分成Y形，两条腿电气连接到防水耳机。 两个防水耳机都包括一个刚性盘，一个防水耳机安装在一侧，一个支架安装在相反的一侧，使弹性头带延伸穿过支架。 头带长度可调，并将耳机固定在使用者的头上。 两个防水耳机都有柔韧的袖子，与使用者的耳道形成密封，以防止水进入耳道并破坏用户听到的音频节目。 一个薄塑料膜定位在耳机的隔膜后面，以防止在使用者的运河中没有定位的耳机。 本发明使用户能够在活跃于水中的同时收听高保真立体声音频节目。
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