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1. 发明授权

US4049077A Seismic vibrator control system 失效
标题翻译：地震振动控制系统
公开(公告)号：US4049077A
公开(公告)日：1977-09-20
申请号：US678502
申请日：1976-04-19
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/04 , G01V1/155
CPC分类号： G01V1/04 , G01V1/155 , Y10S181/401
摘要： This invention is a control system for a hydraulic vibrator that permits the injection into the ground of seismic signals having pseudo-random code patterns or other broad band signals. Feedback for controlling vibrator operation is taken from the coupling plate. At low frequencies, the feedback is proportional to coupling plate position and at higher frequencies, the feedback is proportional to the coupling plate velocity.

2. 发明授权

US4014403A Vibratory apparatus for use in seismic exploration 失效
标题翻译：用于地震勘探的振动装置
公开(公告)号：US4014403A
公开(公告)日：1977-03-29
申请号：US567918
申请日：1975-04-14
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/047 , G01V1/155 , G01V1/04
CPC分类号： G01V1/047 , G01V1/155 , Y10S181/401
摘要： In a variable frequency seismic vibrator including an earth coupling plate, means for generating a reaction impedance, and an energy source for generating reciprocating movement of the coupling plate relative to the reaction impedance, the reaction impedance is generated by a reaction mass and a spring of variable stiffness which couples the reaction mass to the vibrator. As the frequency of vibration changes, the stiffness of the spring is automatically adjusted so that the impedance of the spring resonates with the impedance of the mass to maximize the reaction impedance, thereby increasing the operating efficiency of the vibrator.
摘要翻译：在包括地耦合板的变频地震振动器中，产生反应阻抗的装置和用于产生耦合板相对于反应阻抗的往复运动的能量源，反应阻抗由反应物质和弹簧可变刚度将反应物质耦合到振动器。随着振动频率的变化，弹簧的刚度被自动调节，使得弹簧的阻抗与质量的阻抗共振，以使反应阻抗最大化，从而提高振动器的工作效率。

3. 发明授权

US4295213A Composite seismic signal 失效
标题翻译：复合地震信号
公开(公告)号：US4295213A
公开(公告)日：1981-10-13
申请号：US83059
申请日：1979-10-09
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/00 , G01V1/04 , G01V1/143
CPC分类号： G01V1/005
摘要： This invention provides for transmission of composite swept sine wave seismic signals wherein auto-correlation side lobes of such signals are reduced. The frequency spectrum of a desired swept sine wave seismic signal is divided into a number of consecutive segments, and the segments are arranged to form a sequence of segments by the order of frequency content. Component swept sine wave seismic signals each covering a segment in the sequence are generated simultaneously from the same location to produce the desired seismic signal. The component swept sine wave seismic signals are generated in a manner so that they alternate as upsweeps and downsweeps for consecutive segments in the sequence of segments. The seismic signal comprising the sum of the component swept sine wave seismic signals will have an auto-correlation function with reduced side lobes. Alternatively, the component swept sine wave seismic signals may be generated successively from the same location in a manner so that they alternate as upsweeps and downsweeps for consecutive segments in the sequence of segments. The reflections are successively recorded and stacked prior to correlation with the sum of the component swept sine wave seismic signals. Used in this manner, the sum of the component swept sine wave seismic signals will also have an auto-correlation function with reduced side lobes.
摘要翻译：本发明提供复合扫描正弦波地震信号的传输，其中减少了这种信号的自相关旁瓣。所需的扫频正弦波地震信号的频谱被分成多个连续段，并且这些段被布置成按照频率内容的顺序形成一段段。每个覆盖序列中的段的分量扫描正弦波地震信号从同一位置同时产生以产生所需的地震信号。分量扫描的正弦波地震信号以这样的方式产生，使得它们作为分段序列中连续段的上升沿和下行扫描交替。包括组成扫频正弦波地震信号的和的地震信号将具有减小旁瓣的自相关函数。或者，组件扫描正弦波地震信号可以从相同的位置连续生成，使得它们作为片段序列中的连续片段的上升扫描和下行扫描交替。在与扫描正弦波地震信号之和相关之前，连续地记录和堆叠反射。以这种方式使用，分量扫描正弦波地震信号的总和也将具有减小旁瓣的自相关函数。

4. 发明授权

US4108270A Hydraulic stabilization system to position and isolate a seismic vibrator 失效
标题翻译：液压稳定系统，用于定位和隔离地震振动器
公开(公告)号：US4108270A
公开(公告)日：1978-08-22
申请号：US767181
申请日：1977-02-09
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/047 , G01V1/14
CPC分类号： G01V1/047 , Y10S181/401
摘要： A hydraulic stabilization system which comprises pairs of hydraulic cylinders in fluid communication connected between the vehicle support structure of the vibrator and the vibrator ground coupling plate. This configuration maintains the ground coupling plate in vertical aligment with the vehicle support structure and isolates vibratory motions of the ground coupling plate from the vehicle support structure.
摘要翻译：液压稳定系统，其包括连接在振动器的车辆支撑结构和振动器接地联接板之间的流体连通的液压缸对。这种构造将地面联接板与车辆支撑结构保持垂直分配，并且将地面联接板的振动运动与车辆支撑结构隔离。

5. 发明授权

US4633970A Distributed marine seismic source 失效
标题翻译：分布式海洋震源
公开(公告)号：US4633970A
公开(公告)日：1987-01-06
申请号：US567701
申请日：1984-01-03
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： H04R1/44 , G01V1/02 , G01V1/133 , G01V1/145 , G01V1/135 , G01V1/38
CPC分类号： G01V1/145 , Y10S181/402
摘要： The invention relates to a compact tunable subsea seismic source. The source has multiple seismic radiating plates placed symmetrically about a central housing which contains a hydraulic actuating system. The source is towed to optimize the amount of energy applied to the surrounding water.
摘要翻译：本发明涉及一种紧凑型可调海底震源。该源具有围绕包含液压致动系统的中心壳体对称放置的多个地震辐射板。来源被牵引以优化施加到周围水的能量。

6. 发明授权

US4557348A Tunable marine seismic source 失效
标题翻译：可调海洋地震源
公开(公告)号：US4557348A
公开(公告)日：1985-12-10
申请号：US444298
申请日：1982-11-24
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/145 , G01V1/38
CPC分类号： G01V1/145 , Y10S181/402
摘要： The disclosed device is a marine seismic source which emits a constantly varying FM signal in the 10 to 100 H.sub.z range. The seismic source utilizes an adjustable length cantilever spring rotatably attached to stiff acoustic radiators, which create a signal in the water. Varying the length of the cantilever spring as a function of the frequency will permit the device to be continuously tuned for maximum power output.
摘要翻译：所公开的装置是在10至100Hz范围内发射恒定变化的FM信号的海洋地震源。地震源采用可调节长度的悬臂弹簧，其可旋转地附接到刚性声辐射器，其在水中产生信号。作为频率的函数改变悬臂弹簧的长度将允许设备被连续调谐以实现最大功率输出。

7. 发明授权

US4211301A Marine seismic transducer 失效
标题翻译：海洋地震传感器
公开(公告)号：US4211301A
公开(公告)日：1980-07-08
申请号：US11341
申请日：1979-02-12
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/135 , G01V1/38
CPC分类号： G01V1/135
摘要： A method and apparatus for seismic prospecting which utilizes two transducer plates that are spaced apart, with two sets of bellows placed in between and sealingly attached thereto, to transmit electrically controlled hydraulic pressure signals onto the two plates. When pressure is applied within one set of bellows, the two plates are pushed apart. When pressure is applied within the second set of bellows, the two plates are pulled together. To accomplish this pulling action of the second set of bellows, two closure plates placed between the two transducer plates are used, one attached to one transducer plate and one attached to the other transducer plate. The first closure plate is attached to the first transducer plate in such a manner that it lies between the second transducer plate and the second closure plate. By applying pressure to the second set of bellows that push apart these two closure plates, the two transducer plates are pulled towards each other. By alternately applying hydraulic pressure within the two sets of bellows, reciprocation of the two transducer plates with respect to each other is achieved.
摘要翻译：一种用于地震勘探的方法和装置，其利用间隔开的两个换能器板，两组波纹管放置在其间并密封地附接到其上，以将电控液压信号传输到两个板上。当在一组波纹管内施加压力时，两个板被推开。当在第二组波纹管内施加压力时，两个板被拉在一起。为了实现第二组波纹管的这种拉动动作，使用放置在两个换能器板之间的两个闭合板，一个连接到一个换能器板，一个连接到另一个换能器板。第一闭合板以第二换能器板和第二闭合板之间的方式附接到第一换能器板。通过向分开这两个封闭板的第二组波纹管施加压力，将两个换能器板彼此拉。通过交替地在两组波纹管内施加液压，实现两个换能器板相对于彼此的往复运动。

8. 发明授权

US4133409A Vibrator hold-down plate 失效
标题翻译：振动器压板
公开(公告)号：US4133409A
公开(公告)日：1979-01-09
申请号：US717067
申请日：1976-08-24
申请人： Joseph F. Mifsud , John W. Bedenbender
发明人： Joseph F. Mifsud , John W. Bedenbender
IPC分类号： G01V1/047 , G01V1/155 , G01V1/04
CPC分类号： G01V1/047 , G01V1/155
摘要： A vibratory seismic energy source capable of generating significant energy over a broad frequency band. The vibrating baseplate and associated structure are designed for minimum size and weight, while retaining the structural strength to permit high actuator forces. The weight of the transport vehicle is applied to a substantially horizontal hold-down plate that is interposed between the piston-cylinder assembly and the baseplate. This horizontal plate is coupled to the baseplate through resilient means having compliance such that dynamic motion of the baseplate is decoupled from the hold-down plate and transport vehicle.
摘要翻译：振动地震能源能够在宽频带上产生显着的能量。振动底板和相关结构设计为最小尺寸和重量，同时保持结构强度以允许高致动器力。运输车辆的重量被施加到介于活塞 - 气缸组件和基板之间的基本水平的压紧板。该水平板通过具有柔性的弹性装置联接到基板，使得基板的动态运动与压板和运输车辆分离。

9. 发明授权

US4578784A Tunable marine seismic source 失效
标题翻译：可调海洋地震源
公开(公告)号：US4578784A
公开(公告)日：1986-03-25
申请号：US444279
申请日：1982-11-24
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/145 , G01V1/38 , H04B13/00
CPC分类号： G01V1/145
摘要： The disclosed device is a marine seismic source which produces a varying FM signal often in the 10-100 Hertz region of the spectrum. The seismic source uses stiff oscillating radiators to create a signal in the water. These radiators are actuated by hydraulic cylinders which are in hydraulic communication with hydraulic or oleo-pneumatic variable devices acting as springs with a variable spring rate. Variation of the spring rate as a function of the frequency permits the device to be tuned for maximum power output.
摘要翻译：所公开的设备是海洋地震源，其经常在频谱的10-100赫兹区域中产生变化的FM信号。震源使用刚性振荡散热器在水中产生信号。这些散热器由液压缸致动，液压缸与作为具有可变弹簧刚度的弹簧的液压或油气动可变装置液压连通。作为频率的函数的弹簧频率的变化允许调整装置以实现最大功率输出。

10. 发明授权

US4483411A Tunable marine seismic source 失效
标题翻译：可调海洋地震源
公开(公告)号：US4483411A
公开(公告)日：1984-11-20
申请号：US235202
申请日：1981-02-17
申请人： Joseph F. Mifsud
发明人： Joseph F. Mifsud
IPC分类号： G01V1/145 , G01V1/38
CPC分类号： G01V1/145 , Y10S181/402
摘要： The disclosed device is a marine seismic source which produces a varying FM signal in the low end of the acoustic spectrum. The seismic source uses stiff oscillating radiators to create a signal in the water. These radiators are attached to devices acting as springs with a variable spring rate. Variation of the spring rate as a function of the frequency permits the device to be tuned for maximum power output.
摘要翻译：所公开的装置是在声谱的低端产生变化的FM信号的海洋地震源。震源使用刚性振荡散热器在水中产生信号。这些散热器连接到作为具有可变弹簧刚度的弹簧的装置。作为频率的函数的弹簧频率的变化允许调整装置以实现最大功率输出。

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