Marine magnetic survey method and device for polar floating ice areas

A detection device and magnetic technology, applied in the field of geophysical exploration, can solve the problems of magnetometer probe loss, equipment damage, etc., and achieve the effect of avoiding the interference of ice floes

Active Publication Date: 2015-07-22
THE FIRST INST OF OCEANOGRAPHY SOA +1
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Problems solved by technology

This conventional towed magnetic measurement is suitable for magnetic measurements in most sea areas, but in the polar ice area, this towed magnetic measurement has great risks: the ice floes can easily cut off the Kafra towline, causing the magnetometer probe to lost; ice floes hitting the magnetometer probe can also cause equipment damage

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  • Marine magnetic survey method and device for polar floating ice areas
  • Marine magnetic survey method and device for polar floating ice areas
  • Marine magnetic survey method and device for polar floating ice areas

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Embodiment Construction

[0033] In order to make the technical solution of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Such as figure 1 As shown, the device of the present invention includes an underwater task execution unit and an on-board measurement and control unit, which are connected by a coaxial armored cable. The underwater task execution unit includes a towing body and a magnetic probe connected by a magnetometer tow cable. The drag body includes an underwater modem, an underwater acquisition control unit, a sensor, and a power supply unit. ...

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Abstract

The invention relates to a marine magnetic survey device for polar floating ice areas. The device comprises an underwater task execution unit, an onboard measurement and control unit and a coaxial armor cable. The underwater task execution unit is connected with the onboard measurement and control unit through the coaxial armor cable; the underwater task execution unit comprises a towed body, an underwater acquisition control unit, an underwater modem, a sensor, a magnetic tow, a magnetic probe and a power supply unit; the onboard measurement and control unit comprises a deck acquisition and control unit and a deck modem; a sealed control cabin, a sealed power supply cabin and the sensor are mounted inside the towed body; the underwater acquisition control unit and the underwater modem are mounted in the sealed control cabin, and the power supply unit is mounted in the sealed power supply cabin; the underwater acquisition control unit supplies power to the magnetic probe and acquires signals of the magnetic probe and the sensor. The device has the advantages that threat of floating ice to equipment safety is lowered greatly, risk of equipment loss and damage is lowered, and polar-region magnetic survey efficiency is improved.

Description

technical field [0001] The invention relates to a marine magnetic detection device and method suitable for polar ice floes, and belongs to the technical field of geophysical exploration. Background technique [0002] Conventional marine magnetic detection usually uses a towed magnetometer for detection, and the magnetometer probe is towed in the seawater at the stern by a tow cable to obtain the magnetic parameters of the earth's ocean magnetic field, and the geological conditions are analyzed and judged by calculating and drawing the obtained data Or a method of judging the prospecting target area. For conventional marine magnetic detection, the distance between the magnetometer probe and the stern towed in seawater needs to be greater than 3 times the length of the ship, and the towing cable is strengthened with a kevlar rope. This conventional towed magnetic measurement is suitable for magnetic measurements in most sea areas, but in the polar ice area, this towed magneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/40B63C11/52
Inventor 刘保华裴彦良季念迎刘晨光华清峰
Owner THE FIRST INST OF OCEANOGRAPHY SOA
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