Electric sparkle earthquake focus for elastic wave exploration and probing method applied to electric sparkle earthquake focus

Abstract

The invention provides an electric sparkle earthquake focus for elastic wave exploration. The discharging switch of the electric sparkle earthquake focus is turned on by using a group of microcomputer timing switch turning-on relays, so that the charging time of the electric sparkle generator can be controlled within a range of 0.5-10 seconds. If the charging time is long, the electric sparkle generator is discharged after reaching rated power, and the electric sparkle earthquake focus is used for deep exploration; and a point measurement distance is controlled within a range of 2-10 m by combining the charging time and a ship driving speed; and if the charging time is short, the electric sparkle earthquake focus can be used for shallow part exploration of water bottom, and the point measurement distance is controlled within a range of 0.5-2 m by combining the charging time and the ship driving speed. A control switch is connected with a real-time parameter displaying device; when the control switch is turned on, measurement turn-on signals are given to a host for receiving reflection wave signals; timing and positioning time signals are given to a satellite positioning device; signals are transmitted to a display device; and impulse frequency, impulse time, electric sparkle generator output power which is calculated through the impulse time, map and measurement point positions can be given and displayed.

Description

technical field [0001] The invention relates to the technical field of underwater engineering geological exploration equipment, in particular to an electric spark source for elastic wave exploration, that is, a shock source for elastic wave reflection method exploration on water. Background technique [0002] At present, domestic and foreign water exploration technologies are mainly based on seismic reflection method and "shallow section method". The seismic reflection method uses sources such as explosions and electric sparks, and can detect depths of tens of meters to hundreds of meters under the water. However, the use of straight line survey lines does not reflect well the terrain and silt at the bottom of the water. The "Shallow Stratum Profile Method" adopts low source energy and is only used to detect underwater topography and mud and sand layers. [0003] In reality, there is an urgent need for a method and instrument that can have both functions, and one of the imp...

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Problems solved by technology

However, none of the electric spark seismic sources in the prior art can meet this requirement.

[0004] For example, whether it is the invention patent entitled "A Device for Underwater Geological Exploration on Water Surface" (application number 02120813.1) that I applied to the China National Patent Office on June 3, 2002, or other Japan applied for a utility model patent named "Controllable EDM Acoustic Vibration Source" (application number 201020574027.6) to the China National Patent Office. The efficiency is low, and because the electric spark generator adopts high-voltage charging, manual control during the measurement process increases the difficulty of the operator's operation, and even brings life danger to the operator

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