Matches 1 - 50 out of 234 1 2 3 4 5 >
Match Document Document Title
7616522 Seismic streamer with irregularly spaced hydrophones  
A seismic streamer and a method for positioning a group of hydrophones in a seismic streamer. The hydrophones in a group are spaced irregularly along the length of the streamer to reduce the...
7548486 System for reducing towing noise in marine seismic survey streamers  
A seismic streamer includes a jacket covering an exterior of the streamer. At least one strength member extends along the length of the jacket. The strength member is disposed inside the jacket. At...
7545703 Marine seismic streamer with varying spacer distances for reducing towing noise  
A seismic streamer includes a jacket covering an exterior of the streamer. At least one strength member extends along the length of the jacket. The strength member is disposed inside the jacket. At...
7518948 Marine seismic streamer having soluble encapsulant surrounding seismic sensors therein  
A seismic streamer includes a jacket covering an exterior of the streamer. At least one strength member extends along the length of the streamer and is disposed inside the jacket. At least one...
7483335 Permanently installed seismic ocean bottom cable  
A seismic ocean bottom cable array is provided for use in subsurface exploration. The array includes receiver stations for measuring seismic signals, and a cable including conductors for data...
7466624 Armored seabed laid seismic cable and method and apparatus for manufacturing same  
A method for wrapping continuous strands of steel wire about a seismic cable including interconnected sensor sections and conductor sections where a cross sectional diameter of the sensor section...
7463549 Apparatus and method for carrying out seismic surveys  
A 4D seismic source comprising a series of sub-arrays of guns on flotation devices. Each flotation device has a GPS device. For firing, the guns in the e.g. three sub-arrays identified as being...
7443765 Reconfigurable linear sensor arrays for reduced channel count  
A reconfigurable linear array of sensors (e.g., optical, thermal, pressure, ultrasonic). The reconfigurability allows the size and spacing of the sensor elements to be a function of the distance...
7426439 Method and apparatus for marine seismic data acquisition  
The present invention provides a method and apparatus for seismic data acquisition. One embodiment of the method includes accessing data acquired by at least two particle motion sensors. The data...
7382689 Flexible hydrophone  
A hydrophone includes a body formed of a flexible, plastic material. The body includes a plurality of channels and each channel may have one or more wells. The wells are adapted to receive an...
7379392 Flexible cymbal array  
A cymbal array for underwater vehicle applications includes piezoelectric discs disposed in a line, a first flex circuit comprising first annular members each affixed to a first side of one of the...
7237564 Distribution of energy in a high frequency resonating wafer processing system  
A transducer for use in an acoustic energy cleaner is provided. The transducer includes a resonator and a plurality of crystals bonded to a surface of the resonator. The plurality of crystals is...
7209408 Distributed, soft-bodied, towable, active acoustic system  
A towed active acoustic system includes a plurality of soft-bodied, towable, active acoustic modules. The plurality of active acoustic modules are suspended at various depths within the water...
7184365 Unitary multi-cable towing system  
In one aspect the invention comprises a system and a method for marine geophysical exploration, which includes a first cable connected to a vessel and a plurality of streamer cables connected to...
7180828 Non-kinking oil-filled acoustic sensor stave  
A hydrophone stave comprises a tubular member, a braided cord (or similar flexible structure), cylindrical hydrophones, pins, two plugs and two couplings. The hose (made of a thermoplastic...
7142481 Method and system for making marine seismic streamers  
An apparatus for making a marine seismic streamer includes a conveyor for transporting assembled mechanical harness from a storage device therefor to a storage device for storing completed marine...
7139217 Water bottom cable seismic survey cable and system  
A seismic sensor cable is disclosed. The cable includes an outer jacket disposed on an exterior of the cable. The outer jacket excludes fluid from entering an interior of the cable. A reinforcing...
7130242 System and method for detecting an acoustic signal in the presence of flow noise  
A system and method are provided for detecting an acoustic signal in the presence of flow noise produced by the turbulent flow field that develops about a hosewall of a towed array. Pressure is...
7120087 Electronics-carrying module  
An electronic-carrying module ( 640 ), for example for use with a seismic data acquisition cable ( 400 ), is disclosed. The preferred electronic-carrying module ( 640 ) includes, first, an...
7061829 Water bottom cable seismic survey cable and system  
A seismic sensor cable is disclosed. The cable includes an outer jacket disposed on an exterior of the cable. The outer jacket excludes fluid from entering an interior of the cable. A reinforcing...
7042803 Marine seismic source towing apparatus and method  
A marine acoustic source system has relativley densely packed energy sources arrayed in a tandem-like fashion along a horizontal plane. Preferably, a longitudinal axis of each source lies...
7027695 Fiber transition segment for use in optical fiber hydrophone array  
A fiber transition segment for transitioning an optical fiber from a hydrophone module to the central axis of the module. The segment comprises a conical, elongated element and a cylindrical...
7026826 Vector sensor device and calibration method  
A sensor includes a piezoelectric hydrophone and at least one accelerometer. In calibration mode, the hydrophone is connected to a source of a known electrical signal and outputs a...
6982926 Apparatus and method for bubble shielding towed marine cable  
A cable for towing marine devices is disclosed. The cable includes a strength member and at least one conduit associated with the strength member. The conduit has apertures therein at selected...
6982925 Fiber-optic seismic array telemetry, system, and method  
A method and system for interrogating a seismic sensor in a seismic cable having modular sensing stations spaced along the seismic cable and a connection module head end of the sensor sections,...
6961284 Source array for use in marine seismic exploration  
A staggered vertical marine seismic source contains upper and lower arrays ( 10, 11 ) of emitters of seismic energy (S11, S12; S21, S22). The upper array ( 10 ) is horizontally displaced relative...
6937778 Sensor arrays having light-powered transducers  
A sensor array includes a plurality of sensor locations at which sensed signals are produced. A tension element holds locations at a given maximum spacing. The tension element includes an optical...
6856579 Broadband towed line array with spatial discrimination capabilities  
A modular sub-array assembly of a composite towed array includes a multi-chamber support structure with plural discrete chambers, an acoustically absorptive hub formed at a central axis of the...
6853604 Solid marine seismic cable  
A support structure for piezoelectric elements in a marine seismic cable is provided. The support structure comprises upper and lower cylindrical halves, each with channels formed therein. Two...
6839302 Acoustic emitters for use in marine seismic surveying  
An acoustic emitter for coupling in series in a marine seismic streamer is provided with an annular housing and an annular piezoelectric emitting element positioned coaxially within the housing....
6678212 Seismic cables and a method for manufacturing such  
A seismic cable ( 1 ) and a method of manufacturing such a cable. The cable includes a plurality of elongated electrical/optical elements which are arranged to be interconnected with a number of...
6614724 Hydrophone array with individually switchable hydrophone sensors  
The present invention is directed to a hydrophone streamer towable from a marine vessel on a body of water. The hydrophone streamer comprises a plurality of hydrophones electrically connected in...
6614723 Acoustic sensor array  
An acoustic sensor array may include sensor sections positioned along a length of a strain member. One or more sensors may be disposed within a sensor section. One or more sensors may be...
6580661 Hydrophone array  
A hydrophone array including a cable, such as a towing cable, having attached thereto a plurality of housings. Each housing encloses two acoustic transducers that act as acoustic receivers and...
6570821 Low-noise towed acoustic linear antenna  
Towed low-noise linear acoustic antennas configured for seismic exploration. The jacket of this antenna is pierced with holes that allow seawater to enter the inside of the antenna. The hydrophones...
6477111 Method of making a marine seismic streamer  
A seismic streamer comprises a substantially solid core having many of the main components of the streamer, namely hydrophones, electronics modules for digitising the outputs of the hydrophones,...
6473365 Supporting structure of hydrophones for towed array sonar system  
A support structure of hydrophones for a towed array sonar system includes elastic members arranged in each sensor package and adapted to support a hydrophone received in the sensor package while...
6426464 Cable sectional assembly which houses concatenated electronic modules  
A cable sectional assembly houses an electrically concatenated series of electronic circuit modules and has electric hook-up media interspersed between the modules. Each run of interspersed hook-up...
6404701 Encapsulated volumetric acoustic array in the shape of a towed body  
An encapsulation assembly includes a housing having a nose end, a tail end, and a body portion between the nose end and the tail end. A plurality of acoustic transducers are positioned within the...
6366536 High-resolution seismic acquisition device  
The invention relates to a seismic acquisition device in a marine environment. The device comprises a Janus Helmholtz ( 12 ) transducer which is able to operate at a large depth of immersion and to...
6292434 Method for forming a spherical wave by superposition of a plurality of limited plane waves  
A spherical wave formation method by superposition of a plurality of limited plane waves is provided, in which a plurality of sufficiently small elements in a linear transducer transmits a...
6262945 Seismic signal coupling device and method  
A seismic coupling device for geophones firmly couples seismic sensors to the sea floor. The structure is open for the free flow of sea water and mud through the structure so that it moves freely...
6262944 Solid fill acoustic array  
An acoustic array including a plurality of acoustic sensors positioned at predetermined telemetry points for measuring the acoustic energy from the surrounding environment. The acoustic sensors are...
6188646 Hydrophone carrier  
A hydrophone streamer including a central member running substantially the length of the streamer with a strength member and a plurality of conductors has formed therein space adapted to receive a...
6166997 Low voltage power system for a towed acoustic array  
A low voltage power system for a towed active array sonar is provided. The ow voltage power system includes a shipside power supply driving a step-up transformer which is connected to the tow cable...
6160763 Towed array hydrophone  
An omni-directional dual bilaminar hydrophone particularly suitable for use in a towed array consisting of a cylindrical tubular housing whose ends are sealed by bilaminar piezoelectric...
6151277 Hydrophone with ferroelectric sensor  
An arcuate or flat ferroelectric sensor is incorporated in a seismic streamer. The structure comprises two half-cylinders which are mounted together around a cable. The half-cylinders are coupled...
6128251 Solid marine seismic cable  
An arcuate or flat ferroelectric sensor is incorporated in a seismic streamer. The structure comprises an interior cable, a surrounding woven strength member, an overlying foam floatation layer,...
6118733 Interlink for spatially extended hydrophones  
An interlink for connecting hydrophone elements to allow a single sensing ber to transition from a first hydrophone element, across the interlink, to a second hydrophone element. The interlink...
6111820 Semi-rigid low-noise interlink for spatially extended hydrophones  
A hydrophone interlink that connects hydrophone elements and allows a sin sensing fiber to transition between hydrophone elements. The interlink has an outer-structure and a contained element. The...
Matches 1 - 50 out of 234 1 2 3 4 5 >