公开(公告)号：US4131178A

公开(公告)日：1978-12-26

申请号：US855854

申请日：1977-11-30

申请人： John V. Bouyoucos

发明人： John V. Bouyoucos

IPC分类号： G01V1/04 ,  G01V1/02 ,  G01V1/133

CPC分类号： G01V1/133

摘要： A seismic source is described which drives one or more jets of high velocity water into an underwater environment and then abruptly terminates the jets. The momentum of the free jet columns generate vapor cavities in the water away from the housing of the source which cavities collapse coherently to generate the seismic signal. A piston and a valve sleeve are slidably mounted in a cylinder in the housing. The piston seals off a volume of gas on its rearward side. The forward side of the piston defines one surface of a chamber. The chamber receives high pressure water from an inlet. In its rearward position, the valve sleeve seals a set of jet apertures in the side of the cylinder. In its forward position the valve sleeve opens the apertures, exposing the chamber interior to the exterior underwater environment. With the valve sleeve in its rearward position with the apertures sealed, the high pressure water entering the chamber moves the piston to its rearward position and compresses the gas. The sleeve is hydraulically actuated upon command to abruptly open the jet apertures, enabling the piston to move forwardly under the pressure of the compressed gas, driving the water through the jet apertures so as to form the jets. The piston enters the interior of the sleeve near the forward end of its stroke and, concurrently, abruptly terminates the jets. To re-arm the source, the sleeve is actuated to close the jet openings whereupon the high pressure water re-sets the piston. Upon the next command, the valve sleeve is again actuated to open the apertures and the next seismic signal is generated.

摘要翻译： {PG，1描述了将一个或多个高速水射流驱动到水下环境中，然后突然终止喷射的地震源。 自由喷射塔的动量在水中产生远离源的壳体的蒸气腔，空腔相干地折叠以产生地震信号。 活塞和阀套可滑动地安装在壳体中的气缸中。 活塞在其后侧密封一定体积的气体。 活塞的前侧限定了腔室的一个表面。 室从入口接收高压水。 在其向后位置，阀套密封在气缸侧面的一组喷射孔。 在其向前位置，阀套打开孔，将室内部暴露于外部水下环境。 当阀套处于其后部位置并且密封孔时，进入腔室的高压水将活塞移动到其后部位置并压缩气体。 根据命令液压地启动套筒以突然打开喷射孔，使得活塞能够在压缩气体的压力下向前移动，驱动水通过射流孔，从而形成射流。 活塞在其行程的前端附近进入套筒的内部，同时突然终止喷嘴。 为了重新安装源，套筒被致动以关闭喷射开口，于是高压水重新设定活塞。 在下一个命令时，阀套再次被致动以打开孔，并且产生下一个地震信号。

公开(公告)号：US06606958B1

公开(公告)日：2003-08-19

申请号：US09594532

申请日：2000-06-14

申请人： John V. Bouyoucos

发明人： John V. Bouyoucos

IPC分类号： B63B2156

CPC分类号： B63B21/66 ,  G01V1/3808

摘要： A marine towed array has a plurality of tow bodies of positive buoyancy each containing a marine acoustic source, such as a vibrator source. Each tow body uses a reel containing an electro-mechanical tow cable connecting the sources, whereby reeling and unreeling of the cable, controlled from a towing ship, changes the spacing of the tow bodies. One of the tow bodies at an end of the array is attachable to the towing ship.

摘要翻译： 海洋牵引阵列具有多个正浮力的牵引体，每个主体均包含海洋声源，例如振动源。 每个丝束体使用包含连接源的机电丝束的卷轴，由牵引船控制的缆索的卷取和松开改变了丝束体的间距。 阵列末端的一个拖曳物体可以连接到牵引船上。

公开(公告)号：US5646910A

公开(公告)日：1997-07-08

申请号：US571002

申请日：1995-12-12

申请人： John V. Bouyoucos

发明人： John V. Bouyoucos

IPC分类号： H04R23/00

CPC分类号： G01V1/137

摘要： A pneumatic gun or air gun having a fast-acting sliding valve reciprocable between two axial positions to close or open intake and exhaust ports in a charge chamber in a housing. The sliding valve comprises a piston internal to the housing and may include a piston in a cylinder within and extending beyond the housing. The sliding valve has a sealing flange which forms a lip seal with an annular mating surface of the housing to close an exhaust port. Air accelerating from the gun may be radial from an equatorial exhaust port or may be axial from an end of the charge chamber. The charge chamber is provided with an intake port in selective communication with a source of pressurized gas, thereby to facilitate rapid charging rates. The intake port is closed when the exhaust port is opened by the sliding action of the valve member, and is opened when the lip seal is formed to close the exhaust port. The intake passages to the charge chamber are essentially unrestrictive of the flow of pressurized gas, thereby to facilitate rapid charging rates. The valve is fitted with an annular cocking flange which is disposed in a cocking chamber in the housing and is supplied with pressurized gas on one side to exert a continuous closing force to form and maintain the lip seal. Pressurized gas is provided selectively to the opposite side of the cocking flange to generate an opening force on the valve which is larger than the closing force, thereby breaking the lip seal and permitting gas to discharge suddenly from the charge chamber. In the axial end discharge embodiment, the acoustic output of the gun includes not only the explosive acceleration of gas from the exhaust port, but also the abrupt volume acceleration off the face of the piston.

摘要翻译： 一种气动枪或气枪，其具有可在两个轴向位置之间往复运动的快速滑动阀，以在壳体中的充气室中关闭或打开进气和排气口。 滑动阀包括在壳体内部的活塞，并且可以包括位于壳体内并延伸超过壳体的气缸中的活塞。 滑动阀具有密封凸缘，该密封凸缘与壳体的环形配合表面形成唇形密封件以关闭排气口。 从喷枪加速的空气可以从赤道排气口径向，或者可以从充气室的端部轴向。 充电室设置有与加压气体源选择性连通的进气口，从而有助于快速充气速率。 当通过阀构件的滑动动作打开排气口时，进气口关闭，并且当形成唇形密封件以关闭排气口时打开进气口。 到充电室的进气通道基本上不受加压气体的流动的限制，从而有助于快速充电速率。 阀装配有环形凸缘，其设置在壳体中的起动室中，并且在一侧供应加压气体以施加连续的关闭力以形成和保持唇形密封。 加压气体选择性地设置在起动法兰的相反侧，以在阀上产生比闭合力大的打开力，从而破坏唇形密封并允许气体从充电室突然放电。 在轴向端部放电实施例中，枪的声输出不仅包括来自排气口的气体的爆炸加速度，而且还包括从活塞的表面突然的体积加速度。

公开(公告)号：US5646909A

公开(公告)日：1997-07-08

申请号：US502704

申请日：1995-07-14

申请人： John V. Bouyoucos

发明人： John V. Bouyoucos

IPC分类号： H04R23/00

CPC分类号： G01V1/137

摘要： A pneumatic gun having a fast-acting sliding sleeve valve member reciprocating between two axial positions, first to open an exhaust port for the explosive release of gas from a pressurized charge chamber in a stationary housing while simultaneously closing a pressurized intake port to said chamber, and then to close said exhaust port while simultaneously opening said pressurized intake port for recharging said charge chamber, all for the purpose of generating repetitive trains of impulsive sounds at a rapid rate with increased efficiency. The sliding valve member comprises a sleeve and may include a piston in a cylinder within the housing. The sliding valve member has a sealing flange which forms a lip seal with a stationary annular mating surface of the gun to close an exhaust port. A wall of the charge chamber is provided with an intake port in communication with a source of high-pressure gas. The intake port is closed when the exhaust port is opened by the sliding action of the sleeve valve member, and is opened when the lip seal is formed to close the exhaust port. The sleeve is fitted with an annular cocking flange which is disposed in a cocking chamber supplied with high-pressure gas which exerts a continuous closing force against the cocking flange to form and maintain the lip seal except for those periods when the gun is actuated. A portion of one of the mating surfaces forming the lip seal is relieved to provide an activating chamber. High-pressure gas is provided selectively to the activating chamber generating in the activating chamber an opening force against the sealing flange, which force is larger than the closing force exerted against the cocking flange, thereby breaking the lip seal and permitting gas to acceleratively discharge from the charge chamber. In the piston embodiment, the acoustic output of the gun includes not only the explosive acceleration of gas from the exhaust port, but also the abrupt volume acceleration off the face of the piston.

公开(公告)号：US4601768A

公开(公告)日：1986-07-22

申请号：US609539

申请日：1984-05-11

申请人： John V. Bouyoucos ,  David W. Durfee

发明人： John V. Bouyoucos ,  David W. Durfee

IPC分类号： B29C65/00 ,  B29C71/02 ,  B29C65/06 ,  B29C65/18

CPC分类号： B29C66/0322 ,  B29C65/06 ,  B29C66/54 ,  B29C66/542 ,  B29C66/545 ,  B29C66/547 ,  B29C66/8322 ,  B29C71/02 ,  B29C65/0618 ,  B29C66/53461 ,  Y10S425/806 ,  Y10T156/108

摘要： To relieve stresses in a plastic weld which may weaken the weld and increase its susceptibility to solvent-induced crazing or cracking, forces are applied to the weld zone (the interface between welded parts) after it has cooled to solid condition, but preferably when it is at a higher temperature than the regions of the parts adjacent thereto, which forces are higher than the yield strength of the material at the weld zone and lower than the yield strength of the material in the regions of the parts adjacent to the weld zone. The forces thereby cause yielding or plastic deformation which effectively relieves certain thermally induced stresses in the weld. Tensile stresses in the weld are thereby relieved, to reduce susceptibility of the weld to solvent-induced crazing or cracking.

摘要翻译： 为了减轻塑料焊缝中的应力，这可能削弱焊缝并增加其对溶剂引起的裂纹或裂纹的敏感性，在冷却至固态后，将其施加到焊接区域（焊接部件之间的界面），但优选在 处于比与其相邻的部分的区域更高的温度，该力比焊接区处的材料的屈服强度高，并且低于邻近焊接区的部分区域中的材料的屈服强度。 因此，这种力导致屈服或塑性变形，其有效地减轻焊接中某些热致应力。 从而减轻焊缝中的拉伸应力，以减少焊缝对溶剂引起的裂纹或裂纹的敏感性。

公开(公告)号：US4294513A

公开(公告)日：1981-10-13

申请号：US74270

申请日：1979-09-11

申请人： David E. Nelson ,  John V. Bouyoucos

发明人： David E. Nelson ,  John V. Bouyoucos

IPC分类号： G01H9/00 ,  G02B5/172

CPC分类号： G01H9/00 ,  Y10S177/06

摘要： An optical transducer with an optical waveguide having two paths for the propagation of light is deformed in response to acoustical pressure variations or other parameters to be sensed to modulate the amplitude of the light propagated along the two paths in opposite polarities. The light outputs of the two paths are sensed by photodetectors and applied to an electrical differencing circuit. The mean values of the photodetector outputs are balanced as by mechanically providing a predetermined bias deformation of the fiber, or by electrically matching outputs of the detectors such that, on the average, the output of the differencing circuit is zero. Dynamic deformation of the fiber in the transducer results in unbalanced outputs of the photodetectors which unbalance is sensed by the differencing circuit. This differential detection method minimizes optical and mechanical sources of noise in the light source and waveguide and leads to increased signal-to-noise and enhanced dynamic range of the transducer.

摘要翻译： 具有光波导的光学传感器具有用于光的传播的两条路径，以响应于声压变化或其他待检测的参数而变形，以便以相反的极性调制沿着两个路径传播的光的振幅。 两路径的光输出由光电检测器检测并施加到电差分电路。 光电检测器输出的平均值通过机械地提供光纤的预定偏置变形或通过电气匹配检测器的输出而平衡，使得差分电路的输出平均为零。 换能器中光纤的动态变形导致光电探测器的不平衡输出，不平衡被差分电路感测到。 该差分检测方法使光源和波导中的光学和机械噪声源最小化，并且导致传感器增加的信噪比和增强的动态范围。

公开(公告)号：US3978940A

公开(公告)日：1976-09-07

申请号：US557140

申请日：1975-03-10

申请人： John V. Bouyoucos

发明人： John V. Bouyoucos

IPC分类号： G01V1/135 ,  G01V1/04 ,  G01V1/38 ,  H04B13/02

CPC分类号： G01V1/135

摘要： A broadband low frequency source suitable for deep sea applications without pressure compensation is disclosed. The source utilizes hydraulically powered flexural disc radiators which are sized to small fractions of the generated wavelength. Inertance is applied hydraulically to the radiators to effectively mass load the radiators, thus lowering the resonant frequency of the radiators to fall within the transmission band to minimize driving power requirements and provide for operation over a wide bandwidth.

摘要翻译： 公开了适用于没有压力补偿的深海应用的宽带低频源。 该源采用液压动力弯曲盘式散热器，其尺寸适合产生波长的小部分。 将惰性液压地施加到散热器以有效地对辐射器进行大量负载，从而降低辐射器的谐振频率落入传输频带内，以最小化驱动功率要求并提供在宽带宽上的操作。

公开(公告)号：US5212490A

公开(公告)日：1993-05-18

申请号：US851262

申请日：1992-03-13

申请人： David E. Nelson ,  John V. Bouyoucos

发明人： David E. Nelson ,  John V. Bouyoucos

IPC分类号： G01S13/34 ,  G01S13/58

CPC分类号： G01S13/584 ,  G01S13/34

摘要： False target (reverberation, clutter, etc.) detection is suppressed in an echo ranging system (sonar or radar) in which target velocity and range are measured using a composite Doppler invariant-like signal having at least two segments, such as are present in a "rooftop" or "vee" HFM signal, such composite signal having an ambiguity function with two or more ridge lines of different slopes that intersect along the zero-velocity time axis. A bank of matched filters provides a distribution of outputs which has an ambiguity function-like character with intersecting pairs of ridge lines, the intersecting points of said pairs characterizing the range and velocity of the echo returns. This distribution is adjusted so that the intersecting ridge lines of each pair have equal and opposite slopes with respect to the time axis. In particular, fixed reverberators, which would have ridge lines intersecting on the zero-velocity time axis, would be symmetrical about this axis. A target with velocity v would present ridge lines intersecting along the v-velocity time axis and be symmetrical about that axis. Thus, the reverberation and the moving target would each have crossed ridge lines whose characteristic intersecting patterns would each exhibit symmetries, but about separate and distinct axes. False targets, including clutter and reverberation, are suppressed by subtracting from the adjusted output distribution, a replica thereof, folded (rotated) 180.degree. about a time axis containing the intersection of the ridge line pair corresponding to the false target which is to be suppressed. The rotation and subtraction of the replica from the adjusted distribution provides a set of outputs from which the real target velocity and range can be determined. The rotation-subtraction process can be implemented on an on-going basis to suppress a plurality or continuum of false targets and to achieve a desired width of a Doppler notch covering an arbitrary range of velocities.

公开(公告)号：US4718970A

公开(公告)日：1988-01-12

申请号：US840272

申请日：1986-04-21

申请人： John V. Bouyoucos ,  David W. Durfee

发明人： John V. Bouyoucos ,  David W. Durfee

IPC分类号： B29C37/04 ,  B29C65/00 ,  B29C65/74 ,  B29C65/08

CPC分类号： B29C66/03 ,  B29C37/04 ,  B29C65/743 ,  B29C66/0324 ,  B29C66/1312 ,  B29C66/322 ,  B29C66/53461 ,  B29C66/54 ,  B29C66/8322 ,  B29C66/8362 ,  B29C2793/009 ,  B29C65/06 ,  B29C65/20 ,  B29C66/542 ,  B29C66/545 ,  Y10T156/12 ,  Y10T83/0385 ,  Y10T83/0393 ,  Y10T83/9309 ,  Y10T83/9358

摘要： In order to stress relieve exposed portions of plastic welds, and thereby reduce susceptibility of such welds to solvent-induced crazing and cracking, the welded parts are formed with flanges extending outwardly therefrom. These flanges are at least partially joined during welding, their adjoining surfaces providing at least a portion of the welded joint. After welding, the flanges are compressed in a direction transverse to their adjoining welded surfaces, the compression being of sufficient magnitude to exceed the yield strength of the flanges, thereby relieving stresses in the exposed portion of the welds. The flanges may be sheared, as by a blade which provides both transverse compressive forces and compressive forces in the direction of the adjoining welded surfaces. The flanges may be sheared through, so as to enable the sheared off end to be removed, or the shearing may penetrate only through the weld zone, providing a notch, but leaving the flanges in place. The compressed and/or sheared flanges provide an exposed portion of the welds in which tensile stresses are relieved, reducing susceptibility to solvent-induced crazing or cracking, and thereby edge sealing the welds.

摘要翻译： 为了减轻塑料焊缝的暴露部分，从而降低这种焊接对溶剂引起的裂纹和裂纹的敏感性，焊接部件形成有从其向外延伸的凸缘。 这些凸缘在焊接期间至少部分地接合，它们的邻接表面提供焊接接头的至少一部分。 在焊接之后，凸缘在横向于其邻接的焊接表面的方向上被压缩，该压缩的足够大的数量超过凸缘的屈服强度，从而减轻焊接部分的暴露部分的应力。 凸缘可以通过在邻接的焊接表面的方向上提供横向压缩力和压缩力的叶片来剪切。 可以将凸缘剪切通过，以便能够将剪切的端部移除，或者剪切可以仅穿过焊接区域，从而提供凹口，但是将凸缘留在适当位置。 压缩和/或剪切的凸缘提供焊接的暴露部分，其中释放拉伸应力，降低对溶剂诱发的裂纹或开裂的敏感性，从而边缘密封焊缝。

公开(公告)号：US4695987A

公开(公告)日：1987-09-22

申请号：US689521

申请日：1985-01-07

申请人： John V. Bouyoucos

发明人： John V. Bouyoucos

IPC分类号： G01V1/135 ,  B06B3/00 ,  G01V1/38 ,  H04R1/02

CPC分类号： G01V1/135

摘要： A hydroacoustic transducer for generating and applying acoustic energy to a load coupling structure has a hydroacoustic amplifier with a driver stage and a power stage. The power stage includes a valve, which obtains high power conversion efficiency by operating to switch the flow of pressurized hydraulic liquid on and off thereby providing a switching amplifier which presents a pressure source of acoustic energy. This source is connected to a load coupling structure by way of an acoustic transformer and an inertive element in series with the source. The inertive element is provided by a liquid-filled bore and is terminated at its input end by the larger area of a stepped piston which provides the acoustic transformer. The smaller area of the stepped piston is in hydraulic communication with the power stage of the hydroacoustic amplifier. The series combination of the transformer and the inertive element resonates with the load coupling structure and provides a band pass frequency response characteristic with the load coupling structure. The hydraulic transformer reduces the input acoustic pressure levels from the amplifier, which are then raised again by the inertive element in the series tuned circuit including the inertive element and the load coupling structure, thereby allowing operation at pressure levels which avoid cavitation in the liquid filled elements of the apparatus as well as providing impedance matching between the hydroacoustic amplifier source and the load. The inertance of the inertive element may be varied with variation in frequency of the energy generated by the amplifier (over frequency sweeps) to maintain optimum tuning of the structure.