CN216870825U - Shipborne geomagnetic field vector measuring device - Google Patents
Shipborne geomagnetic field vector measuring device Download PDFInfo
- Publication number
- CN216870825U CN216870825U CN202220483750.9U CN202220483750U CN216870825U CN 216870825 U CN216870825 U CN 216870825U CN 202220483750 U CN202220483750 U CN 202220483750U CN 216870825 U CN216870825 U CN 216870825U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- gnss receiver
- geomagnetic field
- magnetic probes
- probes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005358 geomagnetic field Effects 0.000 title claims abstract description 28
- 239000000523 sample Substances 0.000 claims abstract description 48
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000012937 correction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a shipborne geomagnetic field vector measuring device which comprises a data acquisition unit, an attitude instrument, a GNSS receiver and two magnetic probes, wherein the attitude instrument, the GNSS receiver and the two magnetic probes are respectively in signal communication with the data acquisition unit. The attitude instrument and the GNSS receiver are arranged at the tail of the ship body, the two magnetic probes are fixed at the top of a mast of the ship body, the two magnetic probes are mutually horizontally and symmetrically arranged at the left side and the right side of the mast, and the surfaces of the magnetic probes are covered with heat-insulating protective covers. By adopting the double-magnetic probe mode, not only the geomagnetic vector field information can be obtained, but also the horizontal geomagnetic gradient field can be obtained. The magnetic probe fixed at the top end of the mast of the ship body can effectively reduce the magnetic interference of the ship body. The data acquisition unit simultaneously acquires continuous measurement data of the magnetic probe, the attitude instrument and the GNSS receiver, provides multi-parameter correction data for subsequent calculation of the marine geomagnetic field, and finally acquires high-quality marine geomagnetic field observation data.
Description
Technical Field
The utility model relates to a measuring device, in particular to a shipborne geomagnetic field vector measuring device capable of realizing measurement of an ocean geomagnetic vector field, and belongs to the field of ocean geophysical exploration.
Background
In recent years, with the development of marine resources and the continuous exploration of marine environments, the importance of marine geomagnetic fields is more and more focused and valued.
Marine geomagnetic field measurements are developing in two directions, namely a moving detection network consisting of a ship base, a submarine base and the like, and a fixed observation network consisting of a submarine network. The two methods and targets are different, but can be combined with each other to serve the ocean geomagnetic field measurement. The shipborne geomagnetic field measurement has the characteristics of easy carrying, no space-time limitation, multi-parameter measurement and the like. Under severe environment, the magnetic ship has obvious advantages over the towing magnetometer, and has the defect of being greatly influenced by ship magnetism. Experiments show that the accuracy of the biaxial inclinometer is reduced due to the dynamic acceleration, so that the measurement value accuracy of the attitude instrument of the ship is higher.
Therefore, based on the above research and needs, it is the main object of the present invention to design a ship-borne geomagnetic field vector measurement apparatus.
Disclosure of Invention
The utility model aims to provide a ship-borne geomagnetic field vector measuring device which is strong in anti-interference performance and suitable for being installed and used on a ship body, so that a marine geomagnetic field can be continuously measured, information such as attitude, temperature and geographic position can be synchronously acquired, subsequent data processing is facilitated, and high-quality marine geomagnetic field observation data can be further acquired.
The utility model adopts a double-magnetic-probe working mode, arranges the magnetic probe at the top end of the mast at the highest position of the survey ship, effectively reduces the magnetic interference of a survey ship body, combines an attitude instrument and a GNSS receiver, simultaneously obtains continuous measurement data of multiple parameters such as a geomagnetic vector field, an attitude, a geographic position and the like, constructs a vector measurement device suitable for a ship-borne geomagnetic field, and realizes the measurement of the marine vector geomagnetic field.
The utility model is realized by the following technologies:
the shipborne geomagnetic field vector measuring device comprises a data acquisition unit, an attitude instrument, a GNSS receiver and two magnetic probes, wherein the attitude instrument, the GNSS receiver and the two magnetic probes are respectively in signal communication with the data acquisition unit. The attitude indicator and the GNSS receiver are arranged at the tail position of the ship body. The two magnetic probes are fixed on the top of the hull mast, the two magnetic probes are kept horizontal, and the surfaces of the magnetic probes are covered with heat-preservation and heat-insulation protective covers.
The shipborne geomagnetic field vector measuring device further comprises a horizontal support frame, the horizontal support frame is fixed to the top of the mast of the ship body, and the two magnetic probes are respectively fixed to the horizontal support frame.
The magnetic probe comprises a three-axis orthogonal magnetic sensor and an analog signal processing circuit which are in signal communication with each other.
And the data acquisition unit is respectively communicated with the attitude instrument, the GNSS receiver and the two magnetic probes through transmission lines.
The ship-borne geomagnetic field vector measuring device has the advantages that:
1. by adopting a double-magnetic probe mode, not only can geomagnetic vector field information be obtained, but also a horizontal geomagnetic gradient field can be obtained;
2. the integration of the three-axis orthogonal magnetic sensor and the analog signal processing circuit in the magnetic probe enables the output signal to be a digital signal, improves the anti-interference and anti-attenuation capabilities of the magnetic probe, effectively prolongs the transmission line and ensures the connection process;
3. two magnetic probes are fixed at the top end of a mast of the ship body by adopting a horizontal support frame, so that the magnetic interference of the ship body can be effectively reduced;
4. the surface of the magnetic probe is covered with the heat-preservation and heat-insulation protective cover, so that the influence of sunshine on the temperature change of the magnetic probe can be effectively reduced;
5. and the data acquisition unit is adopted to simultaneously acquire continuous measurement data of the magnetic probe, the attitude instrument and the GNSS receiver, so that multi-parameter correction data are provided for subsequent calculation of the marine geomagnetic field, and high-quality marine geomagnetic field observation data are finally acquired.
Drawings
Fig. 1 is a schematic view of the present invention in use.
Detailed Description
The utility model is further described with reference to figure 1:
the utility model relates to a shipborne geomagnetic field vector measuring device which comprises a data acquisition unit 1, an attitude instrument 2, a GNSS receiver 3, two magnetic probes 4 and a horizontal support frame 6. In the example, in order to simplify the use process, the attitude indicator 2 uses a high-precision compass carried by the ship body, and the detected attitude information comprises three angles of course, rolling and pitching. The GNSS receiver 3 uses a global navigation satellite system receiver provided in the hull itself, and the detected position information includes longitude and latitude. The data acquisition unit 1 is respectively in signal communication with the high-precision compass, the global navigation satellite system receiver and the two magnetic probes 4 through transmission lines. The high-precision compass and the global navigation satellite system receiver are respectively arranged at the tail position of the ship body, and the data collector 1 is arranged in an electric appliance room of the ship body.
The two magnetic probes 4 are respectively fixed on the horizontal support frame 6, the distance between the two magnetic probes 4 is 80cm, the two magnetic probes are kept horizontal, the horizontal support frame 6 is fixed at the top of the ship body mast, and the two magnetic probes 4 are symmetrically distributed on the left side and the right side of the mast and are kept consistent with a ship body coordinate system. In this example, the magnetic probe 4 includes a three-axis orthogonal magnetic sensor and an analog signal processing circuit in signal communication with each other. The performance indexes of the three-axis orthogonal magnetic sensor comprise: three-component magnetic fieldXYZAnd temperatureTThe measuring range is-62500 nT- +62500nT, the noise is better than 0.1nT (rms), and the sampling rate is 1 time/second. Through the processing of the analog signal processing circuit to the signal, the magnetic probe 4 can output a digital signal to the outside, thereby improving the anti-interference and anti-attenuation capabilities of the output signal. In practical use, the transmission line from the magnetic probe 4 to the data collector 1 can be extended to 50 meters, so that the connection process of the transmission line of the magnetic probe 4 is facilitated. By using double magnetsThe probe mode can obtain not only geomagnetic vector field information, but also horizontal geomagnetic gradient fields. The two magnetic probes 4 fixed on the top of the mast can effectively reduce the magnetic interference of the ship body and improve the measurement accuracy.
In order to further reduce the influence of sunshine on the temperature change of the magnetic probe 4, in the embodiment, the surface of the magnetic probe 4 is also covered with a heat-preservation and heat-insulation protection cover 5.
Specifically, when the power-on work is performed, the data acquisition unit 1 can simultaneously acquire the second data of continuous measurement of the magnetic probe 4, the high-precision compass and the global navigation satellite system receiver, so that the subsequent calculation of the marine geomagnetic field is conveniently performed, and further, the high-quality marine geomagnetic field observation data is acquired.
Claims (4)
1. The shipborne geomagnetic field vector measuring device is characterized by comprising a data acquisition unit, an attitude instrument, a GNSS receiver and two magnetic probes, wherein the attitude instrument, the GNSS receiver and the two magnetic probes are respectively in signal communication with the data acquisition unit; the attitude indicator and the GNSS receiver are arranged at the tail position of the ship body; the two magnetic probes are fixed on the top of the hull mast, the two magnetic probes are kept horizontal, and the surfaces of the magnetic probes are covered with heat-preservation and heat-insulation protective covers.
2. The shipborne geomagnetic field vector measurement device according to claim 1, further comprising a horizontal support frame fixed to the top of the hull mast; the two magnetic probes are respectively fixed on the horizontal support frame.
3. The on-board geomagnetic field vector measurement apparatus according to claim 1 or 2, wherein the magnetic probe comprises a three-axis orthogonal magnetic sensor and an analog signal processing circuit in signal communication with each other.
4. The shipborne geomagnetic field vector measurement device according to claim 1 or 2, wherein the data acquisition unit is respectively in signal communication with the attitude indicator, the GNSS receiver and the two magnetic probes through transmission lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220483750.9U CN216870825U (en) | 2022-03-08 | 2022-03-08 | Shipborne geomagnetic field vector measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220483750.9U CN216870825U (en) | 2022-03-08 | 2022-03-08 | Shipborne geomagnetic field vector measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216870825U true CN216870825U (en) | 2022-07-01 |
Family
ID=82161493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220483750.9U Expired - Fee Related CN216870825U (en) | 2022-03-08 | 2022-03-08 | Shipborne geomagnetic field vector measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216870825U (en) |
-
2022
- 2022-03-08 CN CN202220483750.9U patent/CN216870825U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106441553B (en) | Acoustic monitoring system and method based on marine environmental noise | |
| CN102520455B (en) | Aviation geomagnetic vector detection apparatus | |
| CN110941017B (en) | Submarine cable three-dimensional route measuring method and measuring instrument based on magnetic vector data | |
| CN108828471B (en) | Multi-component submarine magnetic field measurement method and device | |
| CN106546235B (en) | A kind of locating magnetic objects method based on carrier compensation | |
| WO2024007365A1 (en) | Beidou/gnss-based real-time high-precision sea surface measurement method and buoy | |
| CN111123173B (en) | Deep and far sea magnetic force abnormity detection system and detection method based on buoy | |
| CN102288170A (en) | Correction method of electronic compass in underwater vehicle | |
| JP2008128968A (en) | System and method for underwater positioning | |
| CN109459711A (en) | A kind of underwater high-precision magnetic field measurement system | |
| CN112925030B (en) | Target boundary detection device and method based on underwater magnetic anomaly signals | |
| CN110294080A (en) | A method of underwater accurate operation is realized using ultra-short baseline | |
| CN113895572A (en) | Overwater and underwater integrated unmanned system and method | |
| Zhang et al. | Use of the Jiaolong manned submersible for accurate mapping of deep-sea topography and geomorphology | |
| CN114264299A (en) | Scalar magnetic field data-based alternating-current transmission submarine cable route positioning method | |
| CN216870825U (en) | Shipborne geomagnetic field vector measuring device | |
| CN114234932A (en) | Underwater conductor measuring method and device for obtaining data of subsea control point | |
| Li et al. | Compensation method for the carrier magnetic interference of underwater magnetic vector measurement system | |
| CN111580023A (en) | Full-axis magnetic gradiometer, magnetic operating system and operating method | |
| RU2478059C1 (en) | Mobile sea vessel for underwater research | |
| CN112147578A (en) | High-precision deep water transmitting array and multi-element vertical receiving array element positioning system and method | |
| CN201583670U (en) | Data collecting system for inland and offshore water magnetic prospecting | |
| CA1302478C (en) | Ship's magnetic self-ranging system | |
| CN212514972U (en) | Full-axis magnetic gradiometer and magnetic operating system | |
| CN113703059A (en) | Remote magnetic detection method for water ferromagnetic target cluster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220701 |