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公开(公告)号：US4608675A
公开(公告)日：1986-08-26
申请号：US278669
申请日：1981-06-29
CPC分类号： G01V1/047 , G01V1/135 , Y10S181/401
摘要： An air gun is mounted in a reaction mass having an impulse-transmitting ground-contact plate movably mounted below the mass. This mass is in face-to-face contact with the plate over the major portion of the entire upper surface of the contact plate. Confined liquid is not employed. The air gun is charged with pressurized gas and fired, discharging the pressurized gas into the narrow horizontal interface region between reaction mass and plate. Rapid expansion of the discharged gas between mass and plate causes an intensely powerful seismic impulse to be transmitted into the earth. The air gun has a firing chamber for holding a charge of pressurized gas, a movable shuttle for suddenly discharging the pressurized gas, including upper and lower pistons with a hollow member connecting these pistons. A pedestal assembly carrying said shuttle is mounted from above to the reaction mass and extends down into the hollow shuttle member. When this air gun is fired, the lower piston moves away from a peripheral seal at the lower end of the firing chamber suddenly discharging pressurized gas from a central location radially outwardly into the narrow horizontal interface region. By suspending the pedestal assembly from above, powerful seismic waves can be generated using a relatively short shuttle stroke, and the gun can be positioned near the impulse-transmitting plate for directly discharging the pressurized gas into the interface region between plate and reaction mass.
摘要翻译： 气枪安装在具有可移动地安装在质量下方的脉冲传递接地板的反作用物质中。 该质量块在接触板的整个上表面的主要部分上与板面对面接触。 密闭液体不被使用。 气枪装有加压气体并点燃，将加压气体排放到反应物料与板之间的窄水平界面区域。 质量和板块之间的排放气体的快速膨胀导致强大的地震冲击传播到地球。 气枪具有用于保持加压气体的燃烧室，用于突出地排出加压气体的可移动梭，包括用连接这些活塞的中空构件的上下活塞。 承载所述梭子的基座组件从上方安装到反作用物质并向下延伸到中空梭构件中。 当该气枪被击发时，下部活塞远离燃烧室下端处的周边密封件突然将加压气体从中心位置径向向外排放到窄的水平界面区域。 通过从上方悬挂基座组件，可以使用相对较短的行程来产生强大的地震波，并且可以将枪定位在脉冲传递板附近，以将加压气体直接排放到板和反作用块之间的界面区域。
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公开(公告)号：US4396088A
公开(公告)日：1983-08-02
申请号：US232095
申请日：1981-02-06
申请人： Joseph F. Bayhi
发明人： Joseph F. Bayhi
CPC分类号： G01V1/135 , Y10S367/912
摘要： The invention relates to a marine seismic source which emits an FM signal linearly increasing from 10 Hz to about 100 Hz. The source has a number of transducers which are flexible sleeves containing a pulsing hydraulic fluid.
摘要翻译： 本发明涉及一种海洋地震源，其发射从10Hz至约100Hz线性增加的FM信号。 该源具有多个换能器，它们是包含脉冲液压流体的柔性套管。
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公开(公告)号：US4346779A
公开(公告)日：1982-08-31
申请号：US150580
申请日：1980-05-16
申请人： Michel G. Manin
发明人： Michel G. Manin
摘要： The invention relates to seismic sources in which a shock wave is produced in a liquid mass by the implosion of a volume of vapor, particularly water vapor. According to the invention, the vapor to be imploded is formed inside a closed, flexible enclosure, surrounding an injection head, fitted with a vapor opening 103 capable of releasing vapor at 5 bars and 170.degree. C., controlled by an electromagnetic valve. Liquid nuclei are advantageously introduced into this vapor by means of a pipe for cold water which is under pressure and under the control of an electromagnetic valve, this water arriving in the cavity in order to exit through spray openings. These nuclei produce a vigorous drop in pressure inside the vapor, and hence an implosion and a shock wave, after which a pipe allows the condensate to be recovered. The invention is of use notably as a seismic marine source.
摘要翻译： 本发明涉及地震源，其中通过一定体积的蒸汽，特别是水蒸汽的爆炸，在液体质量中产生冲击波。 根据本发明，待封装的蒸汽形成在封闭的柔性外壳内，该封闭的柔性外壳围绕注射头，该注射头装有能够释放5巴和170℃的蒸气的蒸汽开口103，由电磁阀控制。 液体核有利地通过用于冷水的管道引入该蒸气中，所述冷却管处于压力下并且在电磁阀的控制下，该水到达空腔以便通过喷射开口排出。 这些核在蒸气中产生剧烈的压力下降，因此产生内爆和冲击波，之后管道允许回收冷凝物。 本发明特别用作地震海洋源。
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公开(公告)号：US4253539A
公开(公告)日：1981-03-03
申请号：US9027
申请日：1979-02-02
申请人： Pierre Magneville
发明人： Pierre Magneville
CPC分类号： G01V1/135
摘要： Device for generating acoustic waves by implosion in a fluid medium comprising fluid-operated means to move a piston, having one end face in contact with said fluid, from a retracted position in the enclosure to a spaced apart position of maximum extension towards the exterior of the enclosure or vice versa and intermittent locking means for maintaining the piston at its spaced apart position, said fluid-operated means being actuated by two sources of fluid at different pressures, one of which is said fluid medium and the other a source of lower pressure.
摘要翻译： 用于通过在流体介质中产生声波以产生声波的装置，包括流体操作装置，以将具有一个端面与所述流体接触的活塞从外壳中的缩回位置移动到最大延伸朝向外部的间隔开的位置 外壳或反之亦然以及用于将活塞保持在其间隔开的位置的间歇锁定装置，所述流体操作装置由不同压力的两个流体源致动，其中一个是所述流体介质，另一个是较低压力的源 。
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公开(公告)号：US3792425A
公开(公告)日：1974-02-12
申请号：US3792425D
申请日：1971-10-13
发明人： MAGNEVILLE P , DUCONGE C
CPC分类号： G01V1/135
摘要： Device for generating acoustic waves in a liquid medium by implosion having two movable rigid members interconnected by a deformable membrane the membrane is formed of two annular strips each perpendicularly secured to the external edge of a movable member and to an annular flange external to the moveable members respectively to form a tight enclosure between the moveable member. At least one annular boss is provided on the external edges of the rigid members and on the annular flange to achieve a proper sealing between the external liquid medium and the enclosure.
摘要翻译： 用于通过内爆在液体介质中产生声波的装置，其具有通过可变形膜互连的两个可移动的刚性构件，所述膜由两个环形条形成，每个环形条垂直地固定到可移动构件的外边缘和可移动构件外部的环形凸缘 以在可移动构件之间形成紧密的外壳。 至少一个环形凸台设置在刚性构件的外边缘和环形凸缘上，以实现外部液体介质和外壳之间的适当密封。
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公开(公告)号：US3704443A
公开(公告)日：1972-11-28
申请号：US3704443D
申请日：1970-08-27
申请人： US NAVY
发明人： ROSENBERG EDGAR N
CPC分类号： G01V1/135
摘要： A motor pump impels a substantial volume of water through a rotatable, slotted shutter to modulate the flow of impelled water. A pair of oppositely facing, radiating-piston surfaces is reciprocably displaced in response to the modulated flow to project acoustic energy through a water media. The transducer, by being freely flooded, in independent of changing pressures in the surrounding media and does not require elaborate sealing assemblies, making it ideal for operation at extreme depths. Varying the configuration of the shutter, interconnecting conduits, and varying the angular speed of the shutter afford selective broadband operation, and increasing the flow rate provides a greatly increased power output.
摘要翻译： 马达泵通过可旋转的开槽的闸门推动大量的水，以调节被推进的水的流动。 一对相对的，辐射活塞表面响应于经调制的流动而可往复移位以通过水介质投影声能。 传感器通过自由淹没，独立于周围介质中的变化压力，并且不需要精细的密封组件，使其成为在极深度下操作的理想选择。 改变快门的配置，互连导管和改变快门的角速度提供选择性宽带操作，并且增加流速提供了大大增加的功率输出。
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公开(公告)号：US3670839A
公开(公告)日：1972-06-20
申请号：US3670839D
申请日：1969-07-23
发明人： SAVIT CARL H
CPC分类号： G01V1/135
摘要： An acoustic impulse generator for producing in a liquid body acoustic impulses useful, for example, in geophysical explorations. The generator includes a housing which defines an enclosed chamber having a flexible wall. Driving means in one operating condition cause the flexible wall to execute a forward stroke in the liquid body thereby storing potential energy in the liquid body. The driving means in another operating condition allow the flexible wall to execute a return stroke in a relatively short time interval thereby generating an acoustic impulse.
摘要翻译： 用于在液体中产生声脉冲的声脉冲发生器，例如在地球物理探测中有用。 发电机包括限定具有柔性壁的封闭室的壳体。 在一个操作条件下的驱动装置使得柔性壁在液体中执行向前冲程，从而将潜在的能量存储在液体中。 在另一操作条件下的驱动装置允许柔性壁在相对短的时间间隔内执行返回行程，从而产生声脉冲。
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公开(公告)号：US3384868A
公开(公告)日：1968-05-21
申请号：US60755167
申请日：1967-01-05
申请人： CONTINENTAL OIL CO
发明人： BROWN GRAYDON L , FAIR DELBERT W
IPC分类号： G01V1/135
CPC分类号： G01V1/135
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公开(公告)号：US3105456A
公开(公告)日：1963-10-01
申请号：US44844554
申请日：1954-08-09
申请人： AEROJET GENERAL CO
发明人： GONGWER CALVIN A
IPC分类号： G01V1/135
CPC分类号： G01V1/135 , Y10S116/18
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