IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0049386
(2011-03-16)
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등록번호 |
US-8302730
(2012-11-06)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Soundblast Technologies, LLC
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
32 |
초록
▼
An improved system and method for generating and controlling conducted acoustic waves for geophysical exploration are provided. A plurality of overpressure waves are generated by at least one overpressure wave generator comprising at least one detonation tube having an open end that may be directed
An improved system and method for generating and controlling conducted acoustic waves for geophysical exploration are provided. A plurality of overpressure waves are generated by at least one overpressure wave generator comprising at least one detonation tube having an open end that may be directed away from, parallel to, or towards a target media. Recoil forces of the at least one overpressure wave generator, produced shear forces, or the forces of the plurality of overpressure waves are coupled to the target media to generate conducted acoustic waves. The timing of the generation of the plurality of overpressure waves can be in accordance with a timing code and can be used to steer the conducted acoustic waves to a location of interest in the target media.
대표청구항
▼
1. A method for generating a conducted acoustic wave, comprising the steps of: supplying to a detonator a fuel-oxidant mixture that flows through said detonator and into a closed end of a detonation tube, said fuel-oxidant mixture comprising a fuel and an oxidant;maintaining a mass ratio of said fue
1. A method for generating a conducted acoustic wave, comprising the steps of: supplying to a detonator a fuel-oxidant mixture that flows through said detonator and into a closed end of a detonation tube, said fuel-oxidant mixture comprising a fuel and an oxidant;maintaining a mass ratio of said fuel versus said oxidant and a flow rate of said fuel-oxidant mixture to achieve detonation characteristics at an ignition point within said detonator;initiating a spark at said ignition point while said fuel-oxidant mixture is flowing through said detonator thereby producing at said ignition point a detonation impulse that propagates into said closed end of said detonation tube, said detonation impulse initiating a detonation wave that propagates from said closed end of said detonation tube to an open end of said detonation tube and exits said open end of said detonation tube as an overpressure wave;directing said overpressure wave towards a target media to generate said conducted acoustic wave. 2. The method of claim 1, wherein said target media is at least one of ground, ice, or water. 3. The method of claim 1, wherein the timing of the initiating of said spark within said fuel-oxidant mixture flowing within said detonation tube is controlled in accordance with a timing code. 4. The method of claim 3, wherein said timing code is a Barker code. 5. The method of claim 1, further comprising the step of: muffling the sound of said overpressure wave. 6. The method of claim 1, further comprising the step of: steering a plurality of conducted acoustic waves to a location of interest within said target media by controlling the relative timing of the generation of said plurality of conducted acoustic waves. 7. A system for generating a conducted acoustic wave, comprising: a detonator;a detonation tube having a closed end and an open end;a fuel mixture supply subsystem that supplies to said detonator a fuel-oxidant mixture that flows through said detonator and into said closed end of said detonation tube, said fuel-oxidant mixture comprising a fuel and an oxidant, said fuel mixture supply system maintaining a mass ratio of said fuel versus said oxidant and a flow rate of said fuel-oxidant mixture to achieve detonation characteristics at an ignition point within said detonator; anda spark initiator that initiates a spark at said ignition point while said fuel-oxidant mixture is flowing through said detonator thereby producing at said ignition point a detonation impulse that propagates into said closed end of said detonation tube, said detonation impulse initiating a detonation wave that propagates from said closed end of said detonation tube to said open end of said detonation tube and exits said open end of said detonation tube as an overpressure wave, said overpressure wave being directed towards a target media to generate said conducted acoustic wave. 8. The system of claim 7, further comprising: a coupling component for coupling said overpressure wave to said target media. 9. The system of claim 8, wherein said coupling component comprises an impedance transition device that extends into said target media. 10. The system of claim 9, wherein said impedance transition comprises at least one of a culvert, a columnator, or a waveguide. 11. The system of claim 9, where said impedance transition device is configured to produce at least one of a shear wave or a seismic wave. 12. The system of claim 9, wherein said impedance transition device comprises a first portion that is substantially parallel to the target media and one or more second portions having a desired angle relative to the orientation of the first portion. 13. The system of claim 9, wherein said impedance transition device is configured to direct said overpressure wave away from said system after said conducted acoustic wave is generated. 14. The system of claim 7, further comprising a stabilizing mechanism that provides stability to the movement of the at least one detonation tube. 15. The system of claim 7, wherein said target media is at least one of ground, ice, or water. 16. The system of claim 7, wherein the timing of the initiating of said spark within said fuel-oxidant mixture flowing within said detonation tube is controlled in accordance with a timing code. 17. The system of claim 11, wherein said timing code is a Barker code. 18. The system of claim 7, further comprising: at least one of a muffler or a nozzle. 19. The system of claim 7, further comprising: a control system that controls the timing of the generation of said conducted acoustic wave to direct said conducted acoustic wave to a location of interest within said target media. 20. A system for generating and directing a plurality of conducted acoustic waves, comprising: a control system; anda plurality of overpressure wave generators positioned in a sparse array, each of said plurality of overpressure wave generators generating one of said plurality of conducted acoustic waves, each of said plurality of overpressure wave generators comprising: a detonator;a detonation tube having a closed end and an open end;a fuel mixture supply subsystem that supplies to said detonator a fuel-oxidant mixture that flows through said detonator and into said closed end of said detonation tube, said fuel-oxidant mixture comprising a fuel and an oxidant, said fuel mixture supply system maintaining a mass ratio of said fuel versus said oxidant and a flow rate of said fuel-oxidant mixture to achieve detonation characteristics at an ignition point within said detonator; anda spark initiator that initiates a spark at said ignition point while said fuel-oxidant mixture is flowing through said detonator thereby producing at said ignition point a detonation impulse that propagates into said closed end of said detonation tube, said detonation impulse initiating a detonation wave that propagates from said closed end of said detonation tube to said open end of said detonation tube and exits said open end of said detonation tube as an overpressure wave, said overpressure wave being directed towards a target media to generate one of said plurality of conducted acoustic waves,said control system controlling the timing of the generation of said plurality of conducted acoustic waves to direct said plurality of conducted acoustic waves to a location of interest within said target media.
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