Deep sea seismic signal acquisition device capable of ascending and descending automatically

Abstract

The invention discloses a deep sea seismic signal acquisition device capable of ascending and descending automatically. The device comprises a pressure-resistant cabin, an antenna, a potentiometer, aninner leather bag, an outer leather bag, a battery pack and a hydrophone, wherein the hydrophone is fixedly mounted outside the pressure-resistant cabin; upper, middle and lower supporting plates aremounted in the pressure-resistant cabin; the antenna is arranged outside the pressure-resistant cabin; the potentiometer is fixed on the upper supporting plate; an inner leather bag assembly is mounted on the upper supporting plate; limiting switches are arranged at the upper end and the lower end of the inner leather bag; the bottom surface of the lower supporting plate is provided with the outer leather bag through an outer leather bag connector; a buoyancy regulating system is mounted on the lower supporting plate, and comprises a gear pump, a plunger pump, a one-way valve, the inner leather bag, the outer leather bag, an electromagnetic valve and a motor; and the outer leather bag, the inner leather bag and a pipeline between the outer leather bag and the inner leather bag are filledwith oil with the density smaller than the water density. A long-period and low-cost seaborne seismic observation station is formed; seismic signals received at different places are recorded; a seismic observation network which covers the relatively large ocean area is formed; and the problem that a seismic network does not exist in the ocean is solved.

Description

technical field [0001] The invention relates to a deep-sea seismic signal acquisition device, specifically an automatic heave deep-sea seismic signal acquisition device, which can automatically dive into a predetermined depth for seismic signal acquisition according to settings, and automatically emerge from the sea surface for two-way transmission of information. Signal acquisition device. Background technique [0002] Seismology is an important geophysical subject that studies the solid earth. The current understanding of the inner layer structure of the earth (crust, mantle, and core) mainly comes from the understanding that earthquakes generate seismic waves that propagate through the earth's interior to the surface and are observed. At present, a large number of seismic stations have been deployed on land around the world, but there are extremely few seismic stations on the sea. Taking my country as an example, there are currently only two marine seismic stations, one ...

AI Technical Summary

Problems solved by technology

[0003] Therefore, there is an urgent need to develop a new type of marine seismic signal acquisition device, which can automatically heave to a certain depth underwater, obtain seismic signal data for a long period of time, and move under the action of ocean currents at the same time to form a large-scale, high-resolution mobile earthquake at sea Monitoring network to address the lack of offshore data for global-scale studies of Earth's tectonics and structures

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