CN106980140B - Underwater target magnetic method detection method - Google Patents
Underwater target magnetic method detection method Download PDFInfo
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- CN106980140B CN106980140B CN201710272334.8A CN201710272334A CN106980140B CN 106980140 B CN106980140 B CN 106980140B CN 201710272334 A CN201710272334 A CN 201710272334A CN 106980140 B CN106980140 B CN 106980140B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/022—Measuring gradient
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The invention discloses a magnetic method detection method of an underwater target, wherein a used net measuring structure comprises a cable, an anchor rope, a buoy and a lead anchor, wherein the cable is a waterproof rope and is vertically connected with the anchor rope through a movable buckle; the anchor rope is a waterproof rope, one end of the anchor rope is connected with the mooring rope, and the other end of the anchor rope is connected with the lead anchor; the floating ball is a foam ball and is sequentially fixed at the connection point of each mooring rope and each anchor rope; the lead anchors are spherical metal lead ingots and are fixed at one end of the anchor rope, and adjacent lead anchors are connected through cables. The invention can arrange the underwater target detection positioning network in the water area with the water depth not exceeding 5m, and is characterized by fast operation speed, simplicity and reliability, can position the underwater ferromagnetic target in the range of 1m multiplied by 1m, and only needs one assault boat to continuously operate for 20 minutes when arranging the network with the interval of 1m multiplied by 1m and the size of 20m multiplied by 20 m. The invention can greatly improve the efficiency of underwater ferromagnetic target detection.
Description
Technical Field
The invention belongs to the field of underwater target detection, and relates to a method for underwater target magnetic detection.
Background
The principle of magnetic method detection is to measure the magnetic gradient of each point on the water surface (ground) near the target by using a magnetic gradient measuring instrument, and comprehensively analyze the magnetic gradient values of all points to obtain which measuring point the target is near. Magnetic detection is currently the most economical and efficient method for detecting large metallic targets underwater and underground. For the magnetic method detection of underground metal targets such as unperforated bullets which are drilled into the ground, the method of arranging a measuring net, measuring point by point and comprehensively judging by software can be adopted, and the positioning accuracy is higher. However, when the magnetic method is adopted for detecting the unpopped bombs, sunken ships or other metal targets falling into the water, the ground measuring net cannot be arranged on the water surface, so that the ground measuring net can be judged by an operator according to real-time measurement data, and the error is large. Therefore, developing a survey net that can be deployed on the water surface is a challenge.
The ground measuring net detected by the magnetic method adopts a nylon rope grid of 10cm multiplied by 10cm, magnetic gradient data are measured at each net point by utilizing a magnetic detector and stored, and after all net point measuring data are completed, the net point area where the target is located is comprehensively analyzed and judged.
The ground measuring net in the prior art cannot be arranged on the water surface, because the water surface positioning net which consists of the mooring rope and the floating ball and is used for submarine culture is fixed on the sea bottom through the mooring rope, a measuring ship can be blocked, and measurement cannot be implemented.
Based on the defects, the prior art cannot meet the positioning requirement of detecting the underwater target by a magnetic method.
Disclosure of Invention
The invention solves the technical problems that a water surface positioning measuring net is formed by combining a waterproof rope with a buoy and a nonferromagnetic metal anchor, so that the smoothness of a measuring channel is ensured, the positioning is accurate, and the basic requirement of detecting an underwater target by a magnetic method is met.
The technical solution for realizing the purpose of the invention is as follows: the utility model provides a survey net for magnetic method detection of target under water, includes hawser, anchor rope, buoy and plumbous anchor, the quantity of hawser is two, is last hawser and lower hawser respectively, goes up and sets up a plurality of anchor ropes side by side with equidistant between the hawser down, goes up the tie point of hawser and anchor rope and all sets up the buoy, and the tie point of hawser and anchor rope all sets up plumbous anchor down.
The method for detecting the underwater target by using the measuring net by using the magnetic method comprises the following steps:
step 1, preparing a measuring ship and a magnetic detector, wherein the ship is a small ship with the draft surface width smaller than 80cm so as to conveniently navigate in a measuring network; the magnetic detector is positioned on the measuring vessel;
step 2, determining a detection area, and determining a detection area with the size of 20m multiplied by 20m by taking the approximate position of a detection target as the center;
step 3, determining the water depth of a detection area;
step 4, adjusting the length of the anchor rope, and adjusting the water depth of the anchor rope according to the water depth;
step 5, sequentially numbering 1-21 on the floating balls of each measuring net, and displaying a first measuring net according to the sequence of the floating ball numbering, wherein the measuring net passes through the center of the detection area;
step 6, the first measuring net is taken as a symmetry axis, and the second measuring net and the third measuring net are unfolded at two sides according to the sequence of the floating ball marks 21-1, so that the distance between the two adjacent measuring nets is 1m;
step 7, the first measuring net is taken as a symmetry axis, and the fourth measuring net and the fifth measuring net are unfolded at two sides according to the sequence of the floating ball marks 1-21, so that the distance between the two adjacent measuring nets is 1m;
step 8, repeating the steps 6 to 7 until the 21 network measurement layout is completed;
step 9, according to the water depth change of different measuring points, the length of an anchor rope below the individual floating ball is adjusted to enable the anchor rope to just expose out of the water surface;
and 10, placing a probe of the magnetic detector in water, allowing a measuring ship to travel according to an S-shaped route, recording a magnetic gradient measured value every time a floating ball passes, and finally integrating all magnetic gradient measured values by data analysis software to obtain which measuring point is near a detection target, thereby completing detection positioning.
Compared with the prior art, the invention has the remarkable advantages that: 1) The invention can arrange the underwater target detection positioning network in the water area with the water depth not exceeding 5m, and is characterized by fast operation speed, simplicity and reliability, and can position the underwater ferromagnetic target within the range of 1m multiplied by 1m. Test results show that the arrangement of the measuring net with the interval of 1m multiplied by 1m and the size of 20m multiplied by 20m only needs one assault boat to continuously operate for 18-20 minutes. By matching with the GTL312 type shell detector and data analysis software, a 122mm shell at the position with the water depth of 4m can be effectively positioned. The invention can greatly improve the efficiency of underwater ferromagnetic target detection. 2) The invention adopts the waterproof rope to combine the buoy and the nonferromagnetic metal anchor to form the water surface positioning measuring net, ensures the smoothness of a measuring channel, ensures accurate positioning and meets the basic requirement of detecting the underwater target by a magnetic method.
The invention is described in further detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of the structure of the measuring net of the present invention.
Fig. 2 is a top view of the netting disposed on the water surface.
The meaning of the numbers in the figures is: 1 cable, 2 anchor rope, 3 floating ball, 4 lead anchor, 5 measuring vessel, 6 route.
Detailed Description
Referring to fig. 1 and 2, the measuring net for magnetic detection of an underwater target comprises two cables 1, two anchor ropes 2, a buoy 3 and a lead anchor 4, wherein a plurality of anchor ropes 2 are arranged between the upper cable and the lower cable at equal intervals in parallel, the buoy 3 is arranged at the connection point of the upper cable and the anchor ropes 2, and the lead anchor 4 is arranged at the connection point of the lower cable and the anchor ropes 2.
The cable 1 is a waterproof rope, the length of the cable is 20 m+/-1 m, and each 10cm of the cable is marked with a scale; every 1m on the mooring rope, one anchor rope 2 is vertically connected through a movable buckle.
The anchor rope 2 is a waterproof rope, the length of which is 5 m+/-0.5 m, and each 10cm is marked with a scale.
The floating ball 3 is a foam ball, a waterproof ball sleeve is sleeved outside the floating ball, and the surface of the ball sleeve is marked with numbers.
The lead anchor 4 is a spherical metal lead ingot. Since lead is a nonferromagnetic metal, it does not greatly affect the target magnetic field and has a large specific gravity, and is used as an anchor material.
Preferably the number of mooring lines 2 is 21.
The method for detecting the underwater target by using the measuring net by using the magnetic method comprises the following steps:
step 1, preparing a measuring ship and a magnetic detector, wherein the ship is a small ship with the draft surface width smaller than 80cm so as to conveniently navigate in a measuring network; the magnetic detector is positioned on the measuring vessel; the detector used was a GTL312 type bomb detector.
Step 2, determining a detection area, and determining a detection area with the size of 20m multiplied by 20m by taking the approximate position of a detection target as the center;
step 3, determining the water depth of a detection area;
step 4, adjusting the length of the anchor rope 2, and adjusting the water depth of the anchor rope 2 according to the water depth;
step 5, sequentially numbering 1-21 on the floating balls of each measuring net, and displaying a first measuring net according to the sequence of the floating ball numbering, wherein the measuring net passes through the center of the detection area;
step 6, the first measuring net is taken as a symmetry axis, and the second measuring net and the third measuring net are unfolded at two sides according to the sequence of the floating ball marks 21-1, so that the distance between the two adjacent measuring nets is 1m;
step 7, the first measuring net is taken as a symmetry axis, and the fourth measuring net and the fifth measuring net are unfolded at two sides according to the sequence of the floating ball marks 1-21, so that the distance between the two adjacent measuring nets is 1m;
step 8, repeating the steps 6 to 7 until the 21 network measurement layout is completed;
step 9, according to the water depth change of different measuring points, the length of an anchor rope below the individual floating ball is adjusted to enable the anchor rope to just expose out of the water surface;
and 10, placing a probe of the magnetic detector in water, allowing a measuring ship to travel according to an S-shaped route, recording a magnetic gradient measured value every time a floating ball passes, and finally integrating all magnetic gradient measured values by data analysis software to obtain which measuring point is near a detection target, thereby completing detection positioning.
The invention adopts the waterproof rope to combine the buoy and the nonferromagnetic metal anchor to form the water surface positioning measuring net, ensures the smoothness of a measuring channel, ensures accurate positioning and meets the basic requirement of detecting the underwater target by a magnetic method.
The present invention will be described in further detail with reference to examples.
Example 1
A measuring net for magnetic detection of an underwater target comprises a cable 1, an anchor rope 2, a buoy 3 and a lead anchor 4, wherein the cable 1 is a waterproof rope, and each 10cm of the cable is marked with a scale. Every 1m, an anchor rope 2 is vertically connected through a movable buckle. The anchor rope 2 is a waterproof rope, the length is 5m, and each 10cm is marked with a scale. One end is connected with a cable 1, and the other end is connected with a lead anchor 4. The length of the anchor line 2 to the lead anchor 4 can be adjusted by means of a living buckle. The floating ball 3 is a foam ball, a waterproof ball sleeve is sleeved outside the ball sleeve, and the surface of the ball sleeve is marked with numerals from 1 to 21. The floating ball is fixed on each cable and anchor rope connecting point 2 in turn. The lead anchor 4 is a spherical metal lead ingot and is fixed at one end of the anchor rope. Since lead is a nonferromagnetic metal, it does not greatly affect the target magnetic field and has a large specific gravity, and is used as an anchor material. Adjacent lead anchors are connected through a cable 1.
The method comprises the following steps:
the first step: the survey vessel and magnetic probe are prepared. A small ship with a draft of 65cm was selected for sailing within the survey net.
And a second step of: a detection zone is determined. A detection region of 20m×20m size is determined centering on the approximate position of the detection target.
And a third step of: and determining the water depth of the detection area. The water depth of the detection area is 4.0m.
Fourth step: the length of the anchor line 2 is adjusted. And (3) according to the water depth, loosening the movable buckle, adjusting the length of the anchor rope 2 to the water depth, and locking the movable buckle.
Fifth step: and a first measuring net is unfolded according to the sequence of the floating ball numbers 1-21, and passes through the center of the detection area.
Sixth step: the first measuring net is taken as a symmetry axis, the second measuring net and the third measuring net are unfolded at two sides according to the sequence of the floating ball reference numeral 21-1, and the distance between the two measuring nets is 1m which is the nearest.
Seventh step: the first measuring net is taken as a symmetry axis, the fourth measuring net and the fifth measuring net are unfolded at two sides according to the sequence of the floating ball marks 1-21, and the distance between the two measuring nets is 1m which is the nearest.
Eighth step: and repeating the sixth step and the seventh step until the 21-strip network measurement layout is completed.
Ninth step: according to the water depth change of different measuring points, the length of the anchor rope below the individual floating ball is adjusted so as to be just exposed out of the water surface.
Tenth step: and (5) measuring. The probe of the magnetic detector is placed in the water and the measuring vessel proceeds according to an "S" shaped course. And recording a magnetic gradient measured value through one floating ball, and finally integrating all the magnetic gradient measured values by data analysis software to obtain the position of the detection target near which measuring point to finish detection positioning.
By using the measuring net for detecting the underwater target by the magnetic method, the underwater target detection positioning measuring net can be arranged in a water area with the water depth of 4.0m, the underwater ferromagnetic target can be positioned within the range of 1m multiplied by 1m, and only one submarines with the interval of 1m multiplied by 1m and the size of 20m multiplied by 20m need to continuously operate for 18 minutes. By matching with a GTL312 type shell detector and data analysis software, a 122mm shell with the water depth of 4.0m can be effectively positioned. The method has the characteristics of high operation speed, simplicity and reliability, and can greatly improve the efficiency of underwater ferromagnetic target detection.
Example 2
A measuring net for magnetic detection of an underwater target comprises a cable 1, an anchor rope 2, a buoy 3 and a lead anchor 4, wherein the cable 1 is a waterproof rope, the length of the cable is 20.5m, and each 10cm is marked with a scale. Every 1m, an anchor rope 2 is vertically connected through a movable buckle. The anchor rope 2 is a waterproof rope, the length is 5.5m, and each 10cm is marked with a scale. One end is connected with a cable 1, and the other end is connected with a lead anchor 4. The length of the anchor line 2 to the lead anchor 4 can be adjusted by means of a living buckle. The floating ball 3 is a foam ball, a waterproof ball sleeve is sleeved outside the ball sleeve, and the surface of the ball sleeve is marked with numerals from 1 to 21. The floating ball is fixed on each cable and anchor rope connecting point 2 in turn. The lead anchor 4 is a spherical metal lead ingot and is fixed at one end of the anchor rope. Since lead is a nonferromagnetic metal, it does not greatly affect the target magnetic field and has a large specific gravity, and is used as an anchor material. Adjacent lead anchors are connected through a cable 1.
The method comprises the following steps:
the first step: the survey vessel and magnetic probe are prepared. A small ship with the width of 70cm on the draft surface is selected so as to conveniently navigate in the survey net.
And a second step of: a detection zone is determined. A detection region of 20m×20m size is determined centering on the approximate position of the detection target.
And a third step of: and determining the water depth of the detection area. The water depth of the detection area is 5.0m.
Fourth step: the length of the anchor line 2 is adjusted. And (3) according to the water depth, loosening the movable buckle, adjusting the length of the anchor rope 2 to the water depth, and locking the movable buckle.
Fifth step: and a first measuring net is unfolded according to the sequence of the floating ball numbers 1-21, and passes through the center of the detection area.
Sixth step: the first measuring net is taken as a symmetry axis, the second measuring net and the third measuring net are unfolded at two sides according to the sequence of the floating ball reference numeral 21-1, and the distance between the two measuring nets is 1m which is the nearest.
Seventh step: the first measuring net is taken as a symmetry axis, the fourth measuring net and the fifth measuring net are unfolded at two sides according to the sequence of the floating ball marks 1-21, and the distance between the two measuring nets is 1m which is the nearest.
Eighth step: and repeating the sixth step and the seventh step until the 21-strip network measurement layout is completed.
Ninth step: according to the water depth change of different measuring points, the length of the anchor rope below the individual floating ball is adjusted so as to be just exposed out of the water surface.
Tenth step: and (5) measuring. The probe of the magnetic detector is placed in the water and the measuring vessel proceeds according to an "S" shaped course. And recording a magnetic gradient measured value through one floating ball, and finally integrating all the magnetic gradient measured values by data analysis software to obtain the position of the detection target near which measuring point to finish detection positioning.
By using the measuring net for detecting the underwater target by the magnetic method, the underwater target detection positioning measuring net can be arranged in a water area with the water depth of 5.0m, the underwater ferromagnetic target can be positioned within the range of 1m multiplied by 1m, and only one submarines with the interval of 1m multiplied by 1m and the size of 20m multiplied by 20m need to continuously operate for 20 minutes. By matching with the GTL312 type shell detector and data analysis software, a shell with 127mm at the water depth of 5.0m can be effectively positioned. The invention can greatly improve the efficiency of underwater ferromagnetic target detection.
Claims (7)
1. The method for detecting the underwater target by using the magnetic method is characterized in that the structure of a measuring net comprises two cables [1], anchor ropes [2], buoys [3] and lead anchors [4], wherein the number of the cables [1] is two, namely an upper cable and a lower cable, a plurality of anchor ropes [2] are arranged between the upper cable and the lower cable at equal intervals in parallel, the buoys [3] are arranged at the connection points of the upper cable and the anchor ropes [2], and the lead anchors [4] are arranged at the connection points of the lower cable and the anchor ropes [2 ];
the underwater target detection method specifically comprises the following steps:
step 1, preparing a measuring ship and a magnetic detector, wherein the ship is a small ship with the draft surface width smaller than 80cm so as to conveniently navigate in a measuring network; the magnetic detector is positioned on the measuring vessel;
step 2, determining a detection area, and determining a detection area with the size of 20m multiplied by 20m by taking the approximate position of a detection target as the center;
step 3, determining the water depth of a detection area;
step 4, adjusting the length of the anchor rope [2], and adjusting the water depth of the anchor rope [2] according to the water depth;
step 5, sequentially numbering 1-21 on the floating balls of each measuring net, and displaying a first measuring net according to the sequence of the floating ball numbering, wherein the measuring net passes through the center of the detection area;
step 6, the first measuring net is taken as a symmetry axis, and the second measuring net and the third measuring net are unfolded at two sides according to the sequence of the floating ball marks 21-1, so that the distance between the two adjacent measuring nets is 1m;
step 7, the first measuring net is taken as a symmetry axis, and the fourth measuring net and the fifth measuring net are unfolded at two sides according to the sequence of the floating ball marks 1-21, so that the distance between the two adjacent measuring nets is 1m;
step 8, repeating the steps 6 to 7 until the 21 network measurement layout is completed;
step 9, according to the water depth change of different measuring points, the length of an anchor rope below the individual floating ball is adjusted to enable the anchor rope to just expose out of the water surface;
and 10, placing a probe of the magnetic detector in water, allowing a measuring ship to travel according to an S-shaped route, recording a magnetic gradient measured value every time a floating ball passes, and finally integrating all magnetic gradient measured values by data analysis software to obtain which measuring point is near a detection target, thereby completing detection positioning.
2. The method of claim 1, wherein the detector used in step 1 is a GTL 312-type bomb detector.
3. The method for detecting the underwater target by the magnetic method according to claim 1, wherein a cable [1] in the measuring net is a waterproof rope, the length of the cable is 20 m+/-1 m, and a scale is marked on each 10cm of the cable; every 1m on the cable, an anchor rope (2) is vertically connected through a movable buckle.
4. The method for detecting the underwater target by the magnetic method according to claim 1, wherein the anchor rope [2] in the measuring net is a waterproof rope, the length of the waterproof rope is 5m plus or minus 0.5m, and each 10cm is marked with a scale.
5. The method for detecting the underwater target by the magnetic method according to claim 1, wherein the buoy [3] in the measuring net is a foam ball, a waterproof ball sleeve is sleeved outside the foam ball, and the surface of the ball sleeve is marked with numbers.
6. The method for detecting the underwater target by the magnetic method according to claim 1, wherein the lead anchor [4] in the measuring net is a spherical metal lead ingot.
7. The method of claim 1, wherein the number of anchor lines [2] in the survey net is 21.
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| CN107367764A (en) * | 2017-07-28 | 2017-11-21 | 吉林大学 | A kind of apparatus and method of accurate measurement dud transient electromagnetic characteristic response |
| CN109283513B (en) * | 2018-08-31 | 2021-02-26 | 杭州瑞声海洋仪器有限公司 | Static array arrangement structure and method for testing on towed linear array lake |
| CN110220499B (en) * | 2019-05-28 | 2022-01-07 | 潍坊新力蒙水产技术有限公司 | Seabed searching and drawing system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09329668A (en) * | 1996-06-06 | 1997-12-22 | Kokusai Denshin Denwa Co Ltd <Kdd> | Submarine cable surveying means |
| JP2008254675A (en) * | 2007-04-09 | 2008-10-23 | Hamamoto Munenori | Work ship course run-out preventive work speed control mechanism |
| CN102540257A (en) * | 2011-12-19 | 2012-07-04 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Positioning method of earthquake signal receiving device |
| CN103900734A (en) * | 2014-03-25 | 2014-07-02 | 中国人民解放军63863部队 | Three-dimensional real-time surface temperature measurement method and system |
| CN104865554A (en) * | 2015-05-05 | 2015-08-26 | 中国人民解放军91388部队 | Tracking and positioning method for double-synchronization underwater cooperative targets |
| CN205986139U (en) * | 2016-08-16 | 2017-02-22 | 中天海洋系统有限公司 | Observation network under water of monopole negative pressure power supply box of plugging into |
| CN207473102U (en) * | 2017-04-24 | 2018-06-08 | 中国人民解放军理工大学 | A kind of survey grid for the detection of submarine target magnetic method |
-
2017
- 2017-04-24 CN CN201710272334.8A patent/CN106980140B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09329668A (en) * | 1996-06-06 | 1997-12-22 | Kokusai Denshin Denwa Co Ltd <Kdd> | Submarine cable surveying means |
| JP2008254675A (en) * | 2007-04-09 | 2008-10-23 | Hamamoto Munenori | Work ship course run-out preventive work speed control mechanism |
| CN102540257A (en) * | 2011-12-19 | 2012-07-04 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Positioning method of earthquake signal receiving device |
| CN103900734A (en) * | 2014-03-25 | 2014-07-02 | 中国人民解放军63863部队 | Three-dimensional real-time surface temperature measurement method and system |
| CN104865554A (en) * | 2015-05-05 | 2015-08-26 | 中国人民解放军91388部队 | Tracking and positioning method for double-synchronization underwater cooperative targets |
| CN205986139U (en) * | 2016-08-16 | 2017-02-22 | 中天海洋系统有限公司 | Observation network under water of monopole negative pressure power supply box of plugging into |
| CN207473102U (en) * | 2017-04-24 | 2018-06-08 | 中国人民解放军理工大学 | A kind of survey grid for the detection of submarine target magnetic method |
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