CN216900890U

CN216900890U - Deep sea self-contained magnetic sensor

Info

Publication number: CN216900890U
Application number: CN202121376202.8U
Authority: CN
Inventors: 张伟明; 汪孝文; 吴月琳
Original assignee: Nanjing Fangzhiyu Technology Co ltd
Current assignee: Nanjing Fangzhiyu Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-07-05
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a deep sea self-capacitance type magnetic sensor which comprises a sealed cabin body, wherein a depth sensor and a collection and storage module are arranged in the sealed cabin body, a self-contained battery module is arranged in the sealed cabin body and is electrically connected with the depth sensor and the collection and storage module, the self-contained battery module provides electric power for the operation of the depth sensor and the collection and storage module, a fluxgate magnetometer is installed in the sealed cabin body and is electrically connected with the collection and storage module, the self-contained battery module is electrically connected with the fluxgate magnetometer and provides electric power for the operation of the fluxgate magnetometer, a non-magnetic pressure-resistant watertight connector is arranged on the sealed cabin body and is electrically connected with the collection and storage module. The magnetic sensor has the advantages of low power consumption, no influence of sea conditions, high concealment, wide coverage and detection time.

Description

Deep sea self-contained magnetic sensor

Technical Field

The utility model relates to the field of ocean magnetic field detection, in particular to a deep sea self-contained magnetic sensor.

Background

The conventional marine magnetic detection adopts a towed magnetometer for detection, mainly comprises a ship, a retracting winch, a pulling force towing cable and a magnetometer towed body, and when a ship body is started, the towing cable pulls the underwater magnetometer towed body to move forward to complete the magnetic detection task in a formulated area. The power supply of the system is generated by a diesel oil or gasoline generator on the ship, and people and the ship need to live and supplement energy sources on the shore at variable times.

The existing magnetic force detection has the following problems:

1. the system is powered on by diesel oil, has high power consumption and large volume, can only be suitable for the offshore field, is limited by the diesel oil carried by a ship, and cannot realize detection in all seas for a long time.

2. Influenced by a ship target, poor concealment in the detection process, influence of sea conditions and incapability of monitoring under the condition of poor sea conditions.

3. The dragging type magnetic probe adopts a magnetometer matched with window dragging for use, the magnetometer needs to be kept in a dragging posture in the dragging process, and the monitoring is inconvenient.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a deep-sea self-contained magnetic sensor which has the advantages of low power consumption, no influence of sea conditions, high concealment, wide coverage and detection time.

In order to achieve the purpose, the deep sea self-capacitance type magnetic sensor comprises a sealed cabin body, wherein a depth sensor and a collecting and storing module are arranged in the sealed cabin body, a self-contained battery module is arranged in the sealed cabin body and is electrically connected with the depth sensor and the collecting and storing module, the self-contained battery module supplies power for the operation of the depth sensor and the collecting and storing module, a fluxgate magnetometer is installed in the sealed cabin body and is electrically connected with the collecting and storing module, the self-contained battery module is electrically connected with the fluxgate magnetometer and supplies power for the operation of the fluxgate magnetometer, a non-magnetic pressure-resistant watertight connector is arranged on the sealed cabin body, and the non-magnetic watertight pressure-resistant connector is electrically connected with the collecting and storing module.

Furthermore, a nonmagnetic support frame is installed in the sealed cabin body, the self-contained battery module, the depth sensor and the acquisition and storage module are located on the upper side of the upper surface of the nonmagnetic support frame, the height of the bottom side of the fluxgate magnetometer is equal to that of the bottom side of the nonmagnetic support frame, the height of the nonmagnetic support frame is 0.1-0.2 m, the height difference between the top side surface of the fluxgate magnetometer and the top side surface of the nonmagnetic support frame is greater than 0.08 m, and the length of the sealed cabin body is 0.3-0.4 m.

Further, the axis of the fluxgate magnetometer is arranged in line with the axis of the sealed cabin.

Further, the sealed cabin body comprises a pressure-resistant cabin cover, the non-magnetic pressure-resistant watertight connector is arranged on the upper surface of the pressure-resistant cabin cover in a protruding mode, a depth sensor receiving end is arranged on the upper surface of the pressure-resistant cabin cover in a protruding mode, and the top of the depth sensor is arranged at the top of the depth sensor receiving end.

Furthermore, a recovery line is arranged at the top of the pressure-resistant cabin cover, one end of the recovery line is tied to the pressure-resistant cabin cover, the other end of the recovery line is tied to a floating ball, and the floating ball floats on the water surface.

Further, the sampling rate of the acquisition and storage module is between 1 time/minute and 1 time/hour.

Has the advantages that: 1. the system is powered by the self-contained power module, carrier dragging is avoided, concealment during detection is improved, and the system is also suitable for sea areas at various positions.

2. The system has the advantages of no need of dragging, low power consumption, long detection time and capability of only supplying power to the acquisition and storage module by the self-contained power supply.

3. The magnetic field acquisition can be realized only by throwing the system into the seabed, and the system is not influenced by sea conditions and postures after throwing the system into the seabed.

Drawings

The present invention will be further described and illustrated with reference to the following drawings.

FIG. 1 is a schematic overall block diagram of a preferred embodiment of the present invention;

reference numerals: 1. sealing the cabin body; 2. a depth sensor; 3. an acquisition and storage module; 4. a self-contained battery module; 5. a fluxgate magnetometer; 6. a non-magnetic pressure-resistant watertight connector; 7. a depth sensor receiving end; 8. a non-magnetic support frame; 9. a pressure-resistant hatch cover; 10. a floating ball;

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, a deep-sea self-contained magnetic sensor according to a preferred embodiment of the present invention includes a sealed cabin 1, a depth sensor 2 and a collection and storage module 3 are disposed in the sealed cabin 1, a self-contained battery module 4 is disposed in the sealed cabin 1, the self-contained battery module 4 is electrically connected to the depth sensor 2 and the collection and storage module 3, and the self-contained battery module 4 provides power for the operation of the depth sensor 2 and the collection and storage module 3. The sealed cabin body 1 is internally provided with a fluxgate magnetometer 5, the fluxgate magnetometer 5 is electrically connected with the acquisition and storage module 3, and the self-contained battery module 4 is electrically connected with the fluxgate magnetometer 5 and provides power for the work of the fluxgate magnetometer 5.

The difference between the present embodiment and the prior art is: 1. in the embodiment, the self-contained battery module 4 is adopted, so that the existing mode that the ship body is towed and diesel oil of the ship body supplies power to the system is changed. 2. In this embodiment, the fluxgate magnetometer 5 is used, and the magnetometer of this type can operate without being dragged, thereby reducing power consumption caused by the overall dragging of the system. 3. The device can work without dragging a ship body, so that the device is high in concealment during submarine detection; 4. the fluxgate magnetometer 5 is an omnidirectional magnetic sensor, and has no working dead zone, so that the posture of sinking into the sea after entering water does not influence the normal work of the magnetic sensor.

The sealed cabin body 1 comprises a pressure-resistant cabin cover 9, a non-magnetic pressure-resistant watertight connector 6 is arranged on the pressure-resistant cabin cover 9 in a protruding mode, the non-magnetic pressure-resistant watertight connector 6 is electrically connected with the acquisition and storage module 3, a depth sensor receiving end 7 is arranged on the upper surface of the pressure-resistant cabin cover 9 in a protruding mode, and the top of the depth sensor 2 is arranged at the top of the depth sensor receiving end 7.

After the sealed cabin body 1 is recovered, the terminal is connected through the non-magnetic pressure-resistant watertight connector 6, and the collected data or the collected frequency of the collection and storage module 3 is adjusted.

A nonmagnetic supporting frame 8 is installed in the sealed cabin body 1, the battery module 4, the depth sensor 2 and the acquisition and storage module 3 are arranged on the upper side of the upper surface of the nonmagnetic supporting frame 8, the bottom side of the fluxgate magnetometer 5 is equal to the bottom side of the nonmagnetic supporting frame 8 in height, the height of the nonmagnetic supporting frame 8 is 0.1-0.2 meter, preferably 0.15 meter, the height difference between the top side surface of the fluxgate magnetometer 5 and the top side surface of the nonmagnetic supporting frame 8 is greater than 0.08 meter, preferably 0.1 meter, and the length of the sealed cabin body 1 is 0.3-0.4 meter, preferably 0.3 meter.

In the system, the structures of the sealing cabin body 1, the non-magnetic pressure-resistant watertight connector 6 and the like adopt non-magnetic materials, so that the influence of hardware equipment in the system on the fluxgate magnetometer 5 can be avoided. In addition, the electric equipment is far away from the fluxgate magnet instrument through the non-magnetic supporting frame 8, so that the influence of software on the fluxgate magnet instrument can be avoided.

In the embodiment, the sampling rate in the acquisition and storage module 3 is adjusted through the non-magnetic pressure-resistant watertight connector 6, and the sampling rate of the acquisition and storage module 3 is between 1 time/minute and 1 time/hour. When the sampling rate is 1 time/hour, the self-contained power module can be used for the system to work for 1 year, and long-time detection of the sea area magnetic field is realized.

A recovery line is arranged at the top of the pressure-resistant hatch cover 9, one end of the recovery line is tied on the pressure-resistant hatch cover 9, the other end of the recovery line is tied with a floating ball 10, and the floating ball 10 floats on the water surface. The float 10 may serve to identify the location when the system is being retrieved.

The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the utility model. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents. The scope of the utility model is defined by the claims.

Claims

1. A deep sea self-contained magnetic sensor comprises a sealed cabin body, wherein a depth sensor and a collection and storage module are arranged in the sealed cabin body, and is characterized in that a self-contained battery module is arranged in the sealed cabin body, the self-contained battery module is electrically connected with the depth sensor and the collection and storage module, the self-contained battery module provides power for the operation of the depth sensor and the collection and storage module,

the sealed cabin body is internally provided with a fluxgate magnetometer which is electrically connected with the acquisition and storage module, the self-contained battery module is electrically connected with the fluxgate magnetometer and provides electric power for the work of the fluxgate magnetometer,

be equipped with the withstand voltage watertight connector of no magnetism on the sealed cabin body, the withstand voltage watertight connector of no magnetism and collection storage module electric connection.

2. The deep-sea self-contained magnetic sensor according to claim 1, wherein a nonmagnetic support frame is installed in the capsule, the self-contained battery module, the depth sensor and the acquisition and storage module are located on the upper side of the upper surface of the nonmagnetic support frame, the bottom side of the fluxgate magnetometer is level to the bottom side of the nonmagnetic support frame, the height of the nonmagnetic support frame is 0.1-0.2 m, the height difference between the top side surface of the fluxgate magnetometer and the top side surface of the nonmagnetic support frame is greater than 0.08 m, and the length of the capsule is 0.3-0.4 m.

3. The deep-sea self-contained magnetic sensor of claim 1, wherein the axis of the fluxgate magnetometer is collinear with the axis of the sealed capsule.

4. The magnetic sensor of claim 1, wherein the sealed cabin comprises a pressure-resistant cabin cover, the nonmagnetic pressure-resistant watertight connector is protruded on an upper surface of the pressure-resistant cabin cover, a depth sensor receiving end is protruded on the upper surface of the pressure-resistant cabin cover, and a top of the depth sensor is installed at a top position of the depth sensor receiving end.

5. The deep-sea self-contained magnetic sensor according to claim 4, wherein a recovery line is provided on the top of the pressure-resistant hatch, one end of the recovery line is tied to the pressure-resistant hatch, and the other end of the recovery line is tied to a floating ball which floats on the water surface.

6. The deep-sea self-contained magnetic sensor according to claim 1, wherein the sampling rate of the acquisition and storage module is between 1/min and 1/hr.