CN104730588A - Proton precession magnetic measuring system - Google Patents
Proton precession magnetic measuring system Download PDFInfo
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- CN104730588A CN104730588A CN201510105906.4A CN201510105906A CN104730588A CN 104730588 A CN104730588 A CN 104730588A CN 201510105906 A CN201510105906 A CN 201510105906A CN 104730588 A CN104730588 A CN 104730588A
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Abstract
The invention provides a proton precession magnetic measuring system which comprises a deck unit and an underwater unit. The deck unit is installed on a work mother ship, the underwater unit takes an on-load tap changing transformer as an integral platform, the work mother ship is connected with the on-load tap changing transformer through an photoelectric composite cable and a load bearing head, the on-load tap changing transformer of the underwater unit is connected with a magnetometer tow fish through a magnetic cable, the deck unit and the underwater unit are each provided with a corresponding optical fiber module in a matched mode, and measurement signals between the deck unit and the underwater unit are in communication through optical fibers. The system can be used for geophysical mobile observation work at the near sea bottom of a deep sea, and high-resolution geophysical detection targets can be obtained.
Description
Technical field
The present invention relates to the rotary proton mgnetic observations system of the deep-sea pull-type in deep seafloor geophysical probing technique field, it is a kind of detecting devices carrying out high precision, high-resolution terrestrial magnetic field total field strength at deep seafloor, can detecting deep submarine obstacle or object, seabed geomagnetic field variation feature, belong to the innovative technology of the rotary proton mgnetic observations system of deep-sea pull-type.
Background technology
Marine magnetometry is a kind of conventional means that marine geophysics is measured.Geomagnetic field measuring can be divided into vector measurement and scalar measurement; Wherein, scalar measurement generally refers to the measurement of terrestrial magnetic field total field strength, normally belongs to absolute measured value by the scalar value that proton-precession magnetometer now, optically pumped magnetometer measuring technique obtain.Because vector measurement relates to power consumption, high-precision Attitude Correction, measures the technical matterss such as drift and erecting device, popularize in oceanographic survey and scientific observation and promote not; Thus marine magnetic survey generally belongs to absolute measurement techniques.
The technical configuration of common marine magnetic survey is: 1. magnetometer deck unit, 2. trailing cable and 3. magnetometer sensor towfish three parts formed, support equipment also has the release winch of trailing cable.Wherein, 1. magnetometer deck unit is formed by the main frame of marine magnetometry and magnetometer interface, navigator fix combination of interfaces; 2. a trailing cable is released in after investigation lash ship, and its length is generally more than 3 times of lash ship length, and wherein one end connects magnetometer deck unit, and one end connects magnetometer towfish in addition; 3. magnetometer sensor towfish, withstand voltage generally only have several MPa, and main built-in mgnetic observations equipment, some equipment is also equipped with pressure transducer.Marine magnetometry can with other marine geophysical survey project synchronization jobs, towing system is usually operated on the water surface.
Along with progress and the development of science and technology, the mankind move towards the scientific investigation in ocean, deep-sea and development activities is more and more frequent, promote deep seafloor Detection Techniques developing ability and face new challenges.Magnetic survey is carried out with the marine site, deep-sea of marine magnetic survey technology and method to a few km of the depth of water of routine, there is distance between survey sensor distance field source remote, high-resolution terrestrial magnetic field detection information can not be obtained, the problems such as the magnetic layer-structure information of the object information in None-identified seabed and the meticulous of seabed.By a proton-precession magnetometer by technology upgrading, then be equipped with a special ballast device, near Sea Bottom mgnetic observations are achieved.Wherein equipment sinking is carried out the mobile observation of seabed magnetic force to a few km under water, be faced with many problems: the watertight insulation problem etc. reaching the Signal transmissions of the trailing cable of nearly 10 kms, the power supply of instrument and equipment, the orientation problem of underwater sensor, the control of sinking height and monitoring, magnetometer and the system integration problem of other peripherals, the shake degree of magnetometer measured value and each underwater unit and connector.Conventional marine magnetic survey system cannot meet this job requirement.
Summary of the invention
The object of the invention is to consider the problems referred to above and the rotary proton mgnetic observations system of a kind of deep-sea pull-type is provided.The present invention can be applicable to geophysics mobile observation work at the bottom of deep sea offshore, realizes high-resolution geophysical exploration target.
Technical scheme of the present invention is: the rotary proton mgnetic observations system of deep-sea of the present invention pull-type, include deck unit and underwater unit, wherein deck unit is arranged on operation lash ship, underwater unit is using ballast device as integrated platform, operation lash ship is connected with ballast device with bearing head by optoelectronic composite cable, the ballast device of underwater unit is connected with magnetometer towfish by magnetic force cable, deck unit and underwater unit are supporting respectively corresponding optic module, and the measuring-signal between deck unit and underwater unit adopts the mode of optical fiber to carry out communication.
Optoelectronic composite cable technology and Optical Fiber Transmission are applied in the rotary proton mgnetic observations system of deep-sea pull-type by the present invention, compared to coaxial cable transmission mode, both stability and the reliability of system had been ensured from communication and power supply mode, avoid interference source again on data path as far as possible, reduce signal noise, reduce the impact of external environment condition on measuring results precision.In addition, the deep sea ballast device technology that the present invention uses, both for magnetometer towfish provides communication interface, structure and composition had embodied the integrality of system, also for the near Sea Bottom terrestrial magnetic field mobile observation under deep-marine-environment provides technical support.Ballast device is a multi-functional underwater towed-body, integrated installation multiple sensors and servicing unit.Wherein ballast device is equipped with power distribution system, has ensured the power supply supply problem of whole system; In addition, ballast device, as the integrated platform of measuring system, combines Underwater Navigation, the towed body sinking degree of depth, the relevant information measured apart from sea floor height etc. and towfish; In addition, ballast device is that towfish sinks to seabed and carries out near Sea Bottom mgnetic observations and provide indispensable counterweight; The design of ballast device also improves the stability of towfish in submarine process, reduces operation lash ship to a great extent and waves impact on towfish attitude.The present invention has used high-precision underwater position fixing technique, the actual geographic positional information of towfish in seabed is indicated in conjunction with lash ship GPS navigation signal and high-precision pressure sensor, improve the readability of near Sea Bottom terrestrial magnetic field mobile observation data, is the requisite important information of late time data process.The present invention has installed sea-anchor additional at the afterbody of magnetometer towfish, and centre connects with cardo ring, decreases the irregular movement of towfish in water body, improves the measurement attitude of towfish, reduces shake degree, improves the quality of measurement data.The present invention is that a kind of design is ingenious, function admirable, and convenient and practical can be applicable to geophysics mobile observation work at the bottom of deep sea offshore, realize high-resolution geophysical exploration target the rotary proton mgnetic observations system of deep-sea pull-type.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the rotary proton mgnetic observations system of deep-sea of the present invention pull-type;
The schematic diagram that Fig. 2 is light between deck unit of the present invention and underwater unit, acoustical signal transmits.
Embodiment
Embodiment:
Structural representation of the present invention is as Fig. 1, shown in 2, the rotary proton mgnetic observations system of deep-sea of the present invention pull-type, include deck unit and underwater unit, wherein deck unit is arranged on operation lash ship 1, underwater unit is using ballast device 6 as integrated platform, operation lash ship 1 is connected with ballast device 6 with bearing head 3 by optoelectronic composite cable 2, the ballast device 6 of underwater unit is connected with magnetometer towfish 10 by magnetic force cable 9, deck unit and underwater unit are supporting respectively corresponding optic module, measuring-signal between deck unit and underwater unit adopts the mode of optical fiber to carry out communication, in order to data transmit-receive and coding decipher.The wherein private cable measured for towfish of magnetic force cable 9, and magnetic force cable 9 need keep certain length.
In the present embodiment, the afterbody of above-mentioned magnetometer towfish 10 is also connected with sea-anchor 11, being arranged on magnetometer towfish 10 sea-anchor 11 is below to ensure that magnetometer has certain pulling force in low speed towing process, thus keep stable attitude, namely sea-anchor 11 can be used to the attitude correcting magnetometer towfish 10, the measurement data of magnetometer is stablized, and shake degree is little.The sea-anchor 11 be connected with magnetometer towfish 10 and rope thereof all adopt non-magnetic material, overcome the interference by electromagnetism, ferromagnetic material in magnetometer measuring process, ensure the quality of data.
In the present embodiment, above-mentioned ballast device 6 has the metal framework that top is kuppe, pressure transducer 5, magnetometer interface and power supply are installed in ballast device 6, Power supply is to magnetometer interface and optic module, magnetometer interface is connected with magnetometer towfish 10, and pressure transducer 5 and the magnetometer interface optic module supporting with underwater unit are connected.
In the present embodiment, the ballast lead of gaining in weight also is installed in above-mentioned ballast device 6.
In the present embodiment, being also provided with two pressure-resistant seal cabins in above-mentioned ballast device 6, is the first pressure-resistant seal cabin 7 and the second pressure-resistant seal cabin 8 respectively.
In the present embodiment, the above-mentioned first built-in supply transformer in pressure-resistant seal cabin 7; Second pressure-resistant seal cabin 8 is the interface section of whole measuring system.
In the present embodiment, above-mentioned deck unit is also equiped with the towed body height monitoring computer of responsible underwater unit status monitoring, the magnetometer collecting computer being responsible for collection mgnetic observations value, the navigational computer providing lash ship navigator fix and power supply, navigational computer is connected with magnetometer collecting computer, and magnetometer collecting computer and the towed body height monitoring computer optic module supporting with deck unit are connected.
In the present embodiment, above-mentioned deck unit is also equiped with underwater positioning system, and underwater unit is also equiped with Underwater Navigation device, and the underwater positioning system of deck unit installing and the Underwater Navigation device of underwater unit installing carry out communication by the mode of acoustics.
In the present embodiment, the Underwater Navigation device of above-mentioned underwater unit installing is localizer beacon 4.Localizer beacon 4 mainly realizes the location of ballast device 6 in seabed.
In the present embodiment, the power supply between above-mentioned two pressure-resistant seal cabins, between pressure-resistant seal cabin and each equipment and communication all adopt watertight pressure-resistant connector.The pressure-resistant seal ability in equipment, cable, cable connector and pressure-resistant seal cabin, all more than the technical requirement of 6000 meters of depth of waters, ensure that the reliability of equipment.
The effect of installing the first pressure-resistant seal cabin 7 of supply transformer is: the high-tension electricity transported out by myriametre optoelectronic composite cable by lash ship cable-end power-supply unit, becomes 24VDC power supply, for subsea equipment is powered by a transformer.The pressure-resistant seal cabin insulating material of transformer and metal is isolated, and guarantees the security of equipment.
Interface section contains stabilized voltage supply, magnetometer interface, a photoelectric commutator transmitter module for the high-quality direct supply of various kinds of equipment under water, the effect in this second pressure-resistant seal cabin 8 is: 1. the alternating current of transformer is become galvanic current source by rectifying and wave-filtering, respectively to localizer beacon, pressure transducer, magnetometer and photoelectric commutator are powered under water; 2. connect signal control line and the photoelectric commutator of Underwater Navigation beacon, transmission receives firing order; 3. the signal wire of Bonding pressure sensor and photoelectric commutator, be sent to lash ship deck by its measured value; 4. connect photoelectric commutator and magnetometer interface, magnetometer interface is connected with magnetometer towfish by magnetometer cable again, then seabed mgnetic observations value is sent to lash ship deck.
In sum, the present invention is directed to a few thing feature and the technical issues that need to address of deeply dragging specialized equipment in oceanographic equipment, provide one to carry out the new Research idea of deep seafloor magnetic survey work.Concrete measure is: 1. equipment is by optoelectronic composite cable transmission magnetic survey, the control signal of instrument and an electric power transfer problem for subsea equipment; 2. an optoelectronic composite cable bearing head is utilized to solve connection and the photosignal isolation technics problem of towing system and optoelectronic composite cable; 3. design the rotary proton mgnetic observations system ballast device of a special underwater towed-body as deep-sea pull-type, the equipment that solves on the one hand is installed and integration problem, improves the attitude of detection system in water body and position control on the other hand; 4. by one, transformer, rectifier power source provide high-quality DC power supply problem for subsea equipment under water; 5. the acoustic marker of an integrated underwater positioning system, the high-precision pressure transducer instruction locus of towing system in water body; 6. utilize one-to-many passage photoelectric commutator (above deck, and another one is pressurized capsule under water), solve the transmission problem of the light signal of 10 kms; 7. by the upgrading of a magnetometer interface, the communication connection problem of magnetometer and photoelectric commutator and deck computing machine is under water solved; 8. install a sea-anchor additional at magnetometer towfish afterbody, improve the attitude of towing system, reduce the shake degree of measured value, improve the quality of measuring-signal.
Above-described embodiment is used for explaining and the present invention is described, instead of limits the invention, and in the protection domain of spirit of the present invention and claim, any amendment make the present invention and change, all fall into protection scope of the present invention.
Claims (10)
1. the rotary proton mgnetic observations system of a deep-sea pull-type, it is characterized in that including deck unit and underwater unit, wherein deck unit is arranged on operation lash ship, underwater unit is using ballast device as integrated platform, operation lash ship is connected with ballast device with bearing head by optoelectronic composite cable, the ballast device of underwater unit is connected with magnetometer towfish by magnetic force cable, deck unit and underwater unit are supporting respectively corresponding optic module, and the measuring-signal between deck unit and underwater unit adopts the mode of optical fiber to carry out communication.
2. the rotary proton mgnetic observations system of deep-sea according to claim 1 pull-type, is characterized in that the afterbody of above-mentioned magnetometer towfish is also connected with sea-anchor.
3. the rotary proton mgnetic observations system of deep-sea according to claim 1 pull-type, it is characterized in that above-mentioned ballast device has the metal framework that top is kuppe, pressure transducer, magnetometer interface and power supply are installed in ballast device, Power supply is to magnetometer interface and optic module, magnetometer interface is connected with magnetometer towfish, and pressure transducer and the magnetometer interface optic module supporting with underwater unit are connected.
4. the rotary proton mgnetic observations system of deep-sea according to claim 1 pull-type, is characterized in that also being provided with the ballast lead of gaining in weight in above-mentioned ballast device.
5. the rotary proton mgnetic observations system of deep-sea according to claim 1 pull-type, is characterized in that also being provided with two pressure-resistant seal cabins in above-mentioned ballast device, is the first pressure-resistant seal cabin and the second pressure-resistant seal cabin respectively.
6. the rotary proton mgnetic observations system of deep-sea according to claim 5 pull-type, is characterized in that the above-mentioned first built-in supply transformer in pressure-resistant seal cabin; Second pressure-resistant seal cabin is the interface section of whole measuring system.
7. the rotary proton mgnetic observations system of deep-sea according to claim 6 pull-type, is characterized in that power supply between above-mentioned two pressure-resistant seal cabins, between pressure-resistant seal cabin and each equipment and communication all adopt watertight pressure-resistant connector.
8. the rotary proton mgnetic observations system of the deep-sea pull-type according to any one of claim 1 to 7, it is characterized in that above-mentioned deck unit is also equiped with the towed body height monitoring computer of responsible underwater unit status monitoring, the magnetometer collecting computer being responsible for collection mgnetic observations value, the navigational computer providing lash ship navigator fix and power supply, navigational computer is connected with magnetometer collecting computer, and magnetometer collecting computer and the towed body height monitoring computer optic module supporting with deck unit are connected.
9. the rotary proton mgnetic observations system of deep-sea according to claim 8 pull-type, it is characterized in that above-mentioned deck unit is also equiped with underwater positioning system, underwater unit is also equiped with Underwater Navigation device, and the underwater positioning system of deck unit installing and the Underwater Navigation device of underwater unit installing carry out communication by the mode of acoustics.
10. the rotary proton mgnetic observations system of deep-sea according to claim 9 pull-type, is characterized in that the Underwater Navigation device that above-mentioned underwater unit is installed is localizer beacon.
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| CN201510105906.4A CN104730588A (en) | 2015-03-11 | 2015-03-11 | Proton precession magnetic measuring system |
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| CN201510105906.4A CN104730588A (en) | 2015-03-11 | 2015-03-11 | Proton precession magnetic measuring system |
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| CN107390293A (en) * | 2017-07-05 | 2017-11-24 | 国家海洋局第二海洋研究所 | A kind of marine exploration system and control method for shallow water islands and reefs area |
| CN107656317A (en) * | 2017-11-16 | 2018-02-02 | 国家海洋局第海洋研究所 | A kind of proton type seabed geomagnetic diurnal change station and magnetic survey method |
| CN108609136A (en) * | 2018-04-25 | 2018-10-02 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of continuous motor driven hydro section detection sampler can be applied to complicated marine site |
| CN108761546A (en) * | 2018-07-12 | 2018-11-06 | 广州海洋地质调查局 | A kind of underwater dynamic high precision mgnetic observations method and device |
| CN109991669A (en) * | 2019-04-11 | 2019-07-09 | 河海大学 | A kind of underwater magnetic method detection system of unmanned boat towing |
| CN111268067A (en) * | 2020-02-13 | 2020-06-12 | 新昌县羽林街道智西机械厂 | Small module ocean magnetic detection device based on transmission of Internet of things |
| CN114488329A (en) * | 2021-12-28 | 2022-05-13 | 北京航天控制仪器研究所 | Ocean drag type low-resistance fixed-depth gravity-magnetic detection towed body |
| CN114585254A (en) * | 2019-08-23 | 2022-06-03 | 卡莫伊温奇公司 | Control system and method for controlling towed marine object |
| CN114802662A (en) * | 2022-04-27 | 2022-07-29 | 杭州电子科技大学 | Underwater towed body capable of carrying magnetometer |
| CN118270201A (en) * | 2024-06-03 | 2024-07-02 | 磐索地勘科技(广州)有限公司 | Acoustic deepwater towing system and method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390293A (en) * | 2017-07-05 | 2017-11-24 | 国家海洋局第二海洋研究所 | A kind of marine exploration system and control method for shallow water islands and reefs area |
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| CN108609136A (en) * | 2018-04-25 | 2018-10-02 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of continuous motor driven hydro section detection sampler can be applied to complicated marine site |
| CN108761546A (en) * | 2018-07-12 | 2018-11-06 | 广州海洋地质调查局 | A kind of underwater dynamic high precision mgnetic observations method and device |
| CN109991669B (en) * | 2019-04-11 | 2020-09-22 | 河海大学 | Unmanned ship towing underwater magnetic detection system |
| CN109991669A (en) * | 2019-04-11 | 2019-07-09 | 河海大学 | A kind of underwater magnetic method detection system of unmanned boat towing |
| CN114585254A (en) * | 2019-08-23 | 2022-06-03 | 卡莫伊温奇公司 | Control system and method for controlling towed marine object |
| CN111268067A (en) * | 2020-02-13 | 2020-06-12 | 新昌县羽林街道智西机械厂 | Small module ocean magnetic detection device based on transmission of Internet of things |
| CN114488329A (en) * | 2021-12-28 | 2022-05-13 | 北京航天控制仪器研究所 | Ocean drag type low-resistance fixed-depth gravity-magnetic detection towed body |
| CN114802662A (en) * | 2022-04-27 | 2022-07-29 | 杭州电子科技大学 | Underwater towed body capable of carrying magnetometer |
| CN114802662B (en) * | 2022-04-27 | 2023-02-28 | 杭州电子科技大学 | Underwater towed body capable of carrying magnetometer |
| CN118270201A (en) * | 2024-06-03 | 2024-07-02 | 磐索地勘科技(广州)有限公司 | Acoustic deepwater towing system and method |
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Application publication date: 20150624 |