Electric spark earthquake focus for ocean exploration

An electric spark and seismic source technology, applied in the field of geophysical exploration equipment, can solve the problems of inconvenient switch adjustment and maintenance, low main frequency of sound waves, inconvenient maintenance, etc., and achieve the effects of simple maintenance, strong flow capacity, and easy maintenance.
CN101424744AInactive Publication Date: 2009-05-06INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Publication Date
2009-05-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a sea exploration sparker source which comprises a discharging switch (5), a transmission cable (6), a discharge electrode (7) and a control circuit (8) and is characterized in that the sparker source also comprises a rectification filter circuit (1), a full-bridge inverter circuit (2), a high-voltage rectification circuit (3) and a storage capacitor group (4), wherein the rectification filter circuit (1) converts three-phase AC voltage into DC voltage, the storage capacitor group (4) is charged and can store electric energy, the transmission cable (6) is connected between the discharging switch (5) and the discharge electrode (7) to transmit the electric energy, the discharge electrode (7) is used for finishing the release of the electric energy, the conversion of the electric energy from sound energy is realized, and the control circuit (8) realizes the control triggering function and the safety protection function of the sparker source.
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Description

technical field

[0001] The invention relates to a geophysical prospecting device, in particular to a marine prospecting electric spark seismic source which uses high-voltage pulse discharge to generate pulsed sound waves. Background technique

[0002] As a high-power pulse sound source, compared with other pulse sound sources (such as controllable sound source, ultrasonic sound source, heavy hammer sound source, air gun sound source, explosive sound source), it has the advantages of simple structure, safety, The advantages of easy control and adjustment of energy, accurate excitation time, high construction efficiency and high power have been widely used in geological exploration, such as the marine and land electric spark source developed by the Institute of Electrical Engineering, Chinese Academy of Sciences (maximum energy storage up to 600kJ), Holland Geo-resources company's multi-electrode marine high-resolution electric spark source, etc., Chinese patents 85103629, 012...

Claims

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