Pgs Geophysical As

Edge 3 Technologies, Inc.

Todd Allan Reinders

Julie Slaughter Zrostlik

Stig Rune Lennart Tenghamn

Thomas T Hansen

Rick Kaufman

Aaron McGregor

Aaron Mcgregor

Embodiments related to marine acoustic vibrator for marine geophysical surveys. An embodiment may include an apparatus, wherein the apparatus may comprise: a coil element comprising a coil; a coil clamp constraining motion of the coil element in at least one direction; and a spring disposed in a load path of the coil clamp. Additional apparatus and methods are disclosed herein.

Apparatus with thermal stress relief mechanism for heat generating coil and associated methods

Embodiments related to sound sources for marine geophysical surveys. An embodiment provides a sound source, comprising: an outer shell containing a first gas at a first gas pressure; and a compliance chamber in indirect fluid communication with the first gas, the compliance chamber containing a second gas at a second gas pressure, wherein the second gas pressure is lower than the first gas pressure. An embodiment provides a sound source for marine geophysical surveys, comprising: an outer shell; a mass coupled to the outer shell; and an actuator coupled to the outer shell. Additional apparatus and methods are disclosed herein.

Pressure-compensated sources

Disclosed are embodiments of a marine vibrator and methods of using. Embodiments of the marine vibrator may comprise a containment housing; a piston plate, wherein an internal volume of the marine vibrator is at least partially defined by the containment housing and the piston plate, the internal volume containing a first gas at a first gas pressure; a fixture coupled to the containment housing; a mechanical spring element coupled to the piston plate and the fixture; a driver coupled to the piston plate and the fixture, wherein the driver is configured to move the piston plate back and forth; and a compliance chamber in contact with the first gas, wherein the compliance chamber comprises a second gas at a second gas pressure.

Piston-type marine vibrators comprising a compliance chamber

A high power ultrasonic transducer is provided. In one embodiment, the transducer includes means for providing power in excess of three kilowatts. The transducer further includes an active element made from a magnetostrictive material and means for producing an electromagnetic field which extends through at least a portion of the active element. The active element is changeable between a first shape when in the absence of the electromagnetic field and a second shape when in the presence of the electromagnetic field. The transducer also includes means for providing an electrical signal to the means for producing an electromagnetic field and an acoustic element connected to the transducer for channeling ultrasonic energy to perform work. In one embodiment, an ultra-high power transducer is provided comprising a plurality of sub-motors, each containing an active element made from a smart material, wherein the sub-motors operate simultaneously to produce ultrasonic energy. The transducer in this embodiment further includes a cooling system connected to the transducers for cooling each active element, the cooling system utilizing a phase change medium. The transducer further includes a composite master wave-guide connected to the plurality of sub-motors, the master wave-guide reactive to the ultrasonic energy from the sub-motors, wherein the master wave-guide channels the ultrasonic energy to perform work.

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Ames, IA, United States of America

Todd Allan Reinders