Deep sea dragging detecting device

Abstract

The invention relates to a deep sea dragging detecting device. The deep sea dragging detecting device comprises a winding and unwinding winch for releasing and recycling a towing rope; the winding andunwinding winch is connected with a towed body in a towed body storage cabin through the towing rope; and an enclasping mechanism which is used for enclasping the towed body and an outlet sensor which is used for detecting releasing and recycling in-place signals of the towed body are arranged in the towed body storage cabin (5). The deep sea dragging detecting device is simple in structure and convenient to use; influence of water surface stormy wave can be avoided effectively, and a measuring result is accurate; a target can be detected at a position close to the bottom, and the detectivityis far higher than water surface ship dragging magnetic force detection; the length of the rope for deep sea detection is reduced, and the positioning precision of the towed body of a magnetometer isgreatly improved; and when implemented, the deep sea dragging detecting device has certain concealing property, and can be used in military application with high requirement on concealing property; the towed body can be released and recycled under water without manual operation; and thus, the deep sea dragging detecting device has the advantages of low operation risks and high working depth.

Description

technical field [0001] The invention relates to the field of marine magnetic detection, in particular to a deep-sea towed detection device capable of performing the task of detecting submarine targets. Background technique [0002] Based on the advantage of not being affected by the intermediate medium between the detection sensor and the target, magnetic detection has an irreplaceable position in the detection of small targets with insignificant acousto-optic characteristics such as submarine pipelines or buried objects. At present, ocean magnetic measurement and magnetic material detection are mostly completed by surface ships carrying magnetometers. Due to the large size of surface ships, affected by water surface waves, and the deviation of the route is large, it is more suitable for large-scale measurement of long lines and wide distances. For the fine detection of small targets, the detection accuracy is often not satisfactory. And the positioning of the magnetometer ...

AI Technical Summary

Problems solved by technology

At present, marine magnetism measurement and magnetic material detection are mostly carried out by surface ships equipped with magnetometers. Due to the large size of surface ships and the influence of waves on the water surface, the deviation of the route is relatively large, so it is more suitable for large-scale measurements with long measuring lines and wide ranging. For fine detection of small targets, the detection accuracy is often not satisfactory

And the positioning of the magnetometer is obtained by the positioning system of the surface ship and the estimation of the position of the magnetometer from the surface ship. Therefore, the longer the length of the cable, the greater the positioning error of the magnetometer. Undoubtedly, a large cable length is required, and the positioning accuracy is difficult to meet the positioning requirements of detection

At the same time, the form of surface ships is not concealed, and there is a risk of exposure for special-purpose military missions

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