Marine imploder-type acoustic impulse generator
阅读：783发布：2022-02-05
专利汇可以提供Marine imploder-type acoustic impulse generator专利检索，专利查询，专利分析的服务。并且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 movable wall. Driving means in one operating condition cause the movable wall to execute a forward stroke in the liquid body thereby storing potential energy in the liquid body and in the generator. The driving means in another operating condition allow the movable wall to execute a return stroke in a relatively short time interval thereby generating an acoustic impulse.，下面是Marine imploder-type acoustic impulse generator专利的具体信息内容。
1. A generator for generating high-power acoustic impulses when submerged in a liquid body, said generator comprising: housing means defining an enclosed chamber having a movable wall; driving means, including potential energy storing means, adapted to move said movable wall, said driving means in one operating condition causing said movable wall to execute a forward stroke in said liquid body thereby storing potential energy in said liquid body and in said storing means, and said driving means in another operating condition allowing the potential energy stored in said generator to cause said movable wall to execute a return stroke in a relatively short time interval thereby generating said acoustic impulse, said time interval being shorter than the time interval within which the movable wall can execute the return stroke in response to the potential energy stored in said liquid body.
2. The generator of claim 1 wherein, said time interval is sufficiently short to allow for the formation of a cavity between said movable wall and said liquid body, and the filling of said cavity by the surrounding liquid body generates said acoustic impulse.
3. The generator of claim 1 wherein said movable wall is a piston slidably mounted in said chamber.
4. The generator of claim 3 wherein, said housing means includes a fixed wall, and said chamber is defined between said fixed wall and said piston.
5. A generator for generating a high-power acoustic impulse when submerged in a liquid body, said generator being adapted to store potential energy, said generator comprising: housing means defining an enclosed chamber having a piston slidably mounted in said chamber; said housing means including a fixed wall, and said chamber being defined between said fixed wall and said piston; driving means adapted to move said movable wall, said driving means including, a push rod having one end coupled to said piston and another end extending through said fixed wall, and a spring means between said fixed wall and said other end, said driving means in one operating condition causing said movable wall to execute a forward stroke in said liquid body thereby storing potential energy in said liquid body and in said spring means, and said driving means in another operating condition allowing said movable wall to execute a return stroke in a relatively short time inTerval thereby generating said acoustic impulse.
6. The generator of claim 5 wherein, said driving means include latching means to retain said piston in its position at the end of said forward stroke, and said latching means controllably releasing said piston for execution of said return stroke.
7. A relatively high-power generator for generating an acoustic seismic impulse when submerged in a liquid medium comprising: a housing having a bore therein, said bore being open at one end to said liquid medium; a piston slidably mounted in said bore, said piston having an outer face and an inner face; actuation means coupled to said piston for causing said piston to execute a forward stroke against the ambient liquid pressure; spring means reciprocatingly cooperating with said actuation means; said actuation means storing energy in said spring means during said forward stroke; and said spring means causing said piston to execute a very rapid return stroke to form a cavity between said liquid medium and said outer face.
8. The generator of claim 7 wherein, said liquid medium violently collapses said cavity to produce said acoustic impulse.
9. The generator of claim 7 wherein, said actuation means include controllable latching means to releasably retain said piston in its position at the end of said forward stroke.
10. A method of generating a sharp high-power acoustic impulse in a body of water comprising the steps of: positioning an impulse generator in the body of water, storing potential energy in the impulse generator and in the body of water surrounding the impulse generator, and very rapidly converting the combined potential energy stored in the generator and in the body of water into acoustic energy to thereby generate said acoustic impulse in the body of water.
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