CN208255317U - Portable three-component submarine electric field instrument - Google Patents
Portable three-component submarine electric field instrument Download PDFInfo
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- CN208255317U CN208255317U CN201820615106.6U CN201820615106U CN208255317U CN 208255317 U CN208255317 U CN 208255317U CN 201820615106 U CN201820615106 U CN 201820615106U CN 208255317 U CN208255317 U CN 208255317U
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Abstract
The utility model discloses a kind of portable three-component submarine electric field instruments comprising first electrode (1), second electrode (2), third electrode (3), the 4th electrode (4), the 5th electrode (5), the 6th electrode (6), instrument room (7), suspension hook (8), underwater sound probe (9), signal control circuit (10), data acquisition circuit (11), power supply module (12), pressure-resistant glass cabin ball (13), underwater electrical connector (14), pedestal (15), supporting beam (16) and uncoupling rigging (17).The utility model is mainly used for the observation of seabed electric field, is suitable for gas and oil in sea and geologic survey.The seabed electric field measurement function of the portable three-component submarine electric field instrument concentrates in single cabin, does not need the long measurement polar arm of traditional electric field instrument, solves the problems such as existing seabed electric field detecting device bulk is big, dispensing is inconvenient with reclaimer operation.
Description
Technical field
The utility model belongs to geophysical survey field, particularly belongs to marine surveys field, is related to a kind of portable
Three-component submarine electric field instrument.
Background technique
Marine electromagnetic Detection Techniques are ground as a kind of effective geophysical method in exploration of ocean resources, Marine Sciences
Study carefully and ocean military activity monitoring in play an important role, it has also become essential support technology.Sea-floor electromagnetic field instrument
It is the basis for carrying out marine electromagnetic detection, comprehensive performance is to restrict one of the technical bottleneck of practical application effect.
Since there is presently no physical sensors can directly measure electric field vector, generally use two points of measurement it
Between potential difference calculate electric field.Theoretically, sensitivity can be improved by increasing the distance between electrode, therefore more high-quality in order to obtain
The data of amount, the size of sea-floor electromagnetic instrument are generally very big.Traditional submarine electric field instrument is using 4-5 17 inches of floating balls and pressure-bearing cabin
Main structure is constituted, centered on main structure, the protruding 4 measurement arms to stationary electric field sensor, every measurement
Arm lengths are 5m, when 4 measurement arms are all unfolded, occupied area 100m2.This is described in patent 200610080789.1
The exemplary architecture of type sea-floor electromagnetic detection device, it is clear that this system very inconvenient, Er Qiechang when sea is launched and is recycled
Electrode spacing is easier to be influenced by ocean bottom currents.But in order to keep electric field measurement sensitivity, the difficulty of operation on the sea can only be increased
Degree, the two have implacable contradiction.Solution first is that reduce floating ball and pressure-bearing device quantity, such as patent
201120236291.6, the single cabin ball scheme used in 201510494522.6 and 201610460556.8, but survey can not be reduced
Pole span is measured, difficulty of construction improves very limited；Another scheme is to sacrifice electric field detecting sensitivity as cost, using short pole
Away from scheme, if used small-sized acquisition station in patent 201210449479.8, remove long electrode arm, but still survey using traditional current potential
Technical solution is measured, electric field detecting sensitivity substantially reduces.
While how guaranteeing seabed electric field signal acquisition quality, lowering apparatus size is always the difficult point of this field.
Utility model content
Based on problems of the prior art, the utility model discloses a kind of portable three-component submarine electric field instrument,
It acquires current signal by using large-area flat-plate electrode to measure electric field, avoids in conventional solution using voltage measurement
The long pole span that technical solution needs；Its high sensitivity facilitates offshore construction and launches and recycles.
To achieve the above purpose, the technical solution of the present invention is:
A kind of portable three-component submarine electric field instrument, the portable three-component submarine electric field instrument include: first electrode,
Second electrode, third electrode, the 4th electrode, the 5th electrode, the 6th electrode, instrument room, suspension hook, underwater sound probe, signal control electricity
Road, data acquisition circuit, power supply module, pressure-resistant glass cabin ball, underwater electrical connector, pedestal, supporting beam and uncoupling rigging；Wherein,
Six electrodes are plate electrode, first electrode and second electrode, third electrode and the 4th electrode, the 5th electrode and the 6th
Direction is parallel two-by-two for electrode, and shape is equal with area difference, is separately mounted on six faces of instrument room appearance.
The parallel electrode of every two constitutes one group, and the current signal of measurement and electrode vertical direction, six electrodes are constituted altogether
Three groups of parallel poles, measure the current signal in three directions.Six electrode materials are that metal either silver-silver chloride etc. does not polarize
Electrode, current signal are converted, amplified and are stored by data acquisition circuit.
Further, the front-end circuit resistance of every group of parallel pole contact resistance in the seawater and data acquisition circuit it
With it is equal with the hexahedron inland sea water resistance of six electrodes surroundings.
Wherein, instrument room is made of high-strength insulating material, such as engineering plastics, nylon, there is upper and lower, left and right, preceding
With rear six planes, a regular regular hexahedron is formed, the area of each plane is 1m2, instrument room inner sealing and the external world are extra large
Water is not turned on.
Wherein, suspension hook is mounted on the top of instrument room, the lifting for the portable three-component submarine electric field instrument.
Wherein, underwater sound probe is mounted on the top of instrument room, receives for underwater acoustic communication signal and response, change are described just
Take the buoyant properties of formula three-component submarine electric field instrument.
Wherein, glass cabin ball is resistance of the hollow glass marble, is mounted on inside instrument room, and signal control circuit, data acquire
Circuit and power supply module are fixedly mounted on inside the ball of glass cabin.
Wherein, control circuit is used to handle the manipulation of depth of water communication signal and seabed Collecting operation.
Wherein, data acquisition circuit is used for the current signal of receiving electrode acquisition, is converted by front-end circuit, Current Voltage
Device, analog-digital converter, microcontroller and memory composition.Front-end circuit connect measurement current signal with electrode, then access electricity
The current signal of acquisition is converted into voltage signal and is modulated and amplifies, mould by galvanic electricity pressure converter, current-to-voltage convertor
The analog signal of acquisition is converted into digital signal by number converter, and microcontroller carries out control operation to input signal, is born simultaneously
Duty and external data transmission and interworking.Memory for receiving data information and store arrive storage unit.
Wherein, power supply module is used to provide the described the electricity supply of portable three-component submarine electric field instrument.Underwater electrical connector
Connection electrode and data acquisition circuit.Pedestal is fixedly mounted on the lower part of instrument room, for being the portable three-component seabed
Electric field instrument provides gravity traction.
Wherein, supporting beam is for retainer instrument cabin in pedestal.Uncoupling rigging is used for separate apparatus cabin and pedestal.
Using the technical solution of the utility model, can have it is following the utility model has the advantages that
This portable three-component submarine electric field instrument provided by the utility model, solves existing seabed electric field detecting device
Size is too long, is not easy to marine the problems such as launching with recycling.
Detailed description of the invention
Fig. 1 is the portable three-component submarine electric field instrument electric field signal acquisition principle schematic diagram according to the utility model；
Fig. 2 is the portable three-component submarine electric field instrument data acquisition circuit schematic diagram according to the utility model；
Fig. 3 is the portable three-component submarine electric field instrument three-dimensional structure diagram according to the utility model；
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
The principles of the present invention are as follows: the portable three-component submarine electric field instrument of the utility model eliminates traditional 10m
Long polar arm and potential difference measurement mode carry out electric field detecting, instrument size in such a way that big plane electrode acquires current signal
1m or so can be reduced to.
The utility model electric field signal acquisition principle schematic diagram as shown in Figure 1,4 area of third electrode 3 and the 4th electrode
It is equal, it is parallel to each other, is connected by front-end circuit 21, then measurement accesses subsequent conditioning circuit by the current signal of electrode.Third electricity
Pole 3 and the 4th electrode 4 are plate electrodes, can be the unpolarizable electrodes such as traditional metal electrode or silver-silver chloride.Remember J
For the current density perpendicular to electrode plane, σ is sea water conductivity, and E is the electric field strength in seawater, and I is the electricity for flowing through electrode
Stream, S are single electrode area, and volume of the V between third electrode 3 and the 4th electrode 4, Re is third electrode 3 and the 4th electrode 4
Contact resistance in the seawater, Rc are the resistance of front-end circuit 21, the electricity of Rw seawater between third electrode 3 and the 4th electrode 4
Resistance.Based on Ohm's law, the electric field strength E measured by third electrode 3 and the 4th electrode 4 are as follows:
E=J/ σ=I/ (σ S) (1)
In Seawater, conductivityσ it is known that S is fixed value, at this time electric field by no longer by between two measuring electrodes away from
From decision, but depend on the area of measuring electrode.Since observation current strength is the Line Integral of S, to realize identical electric field
Effect on Detecting, it is more interelectrode apart from much easier than increasing by the area for increasing electrode, it can effectively reduce instrument size.For
Avoid measurement electric field impacted, the resistance of the contact resistance of third electrode 3 and the 4th electrode 4 in the seawater and front-end circuit 21 it
Be configured to equal with volume V inland sea water resistance.In the case, detection device is equivalent to be substituted by seawater.
Re+Rc=Rw (2)
As shown in Fig. 2, data acquisition circuit 11 is used for the current signal of receiving electrode acquisition, by front-end circuit 20, front end
Circuit 21, front-end circuit 22, current-to-voltage convertor 40, analog-digital converter 41, microcontroller 42 and memory 43 form.First
Electrode 1 and 2 area equation of second electrode, are parallel to each other, are connected by front-end circuit 20, measure the current signal by electrode, so
Current-to-voltage convertor 40 is accessed afterwards, between the input resistance 30 and first electrode 1 and second electrode 2 of current-to-voltage convertor 40
The resistance for surrounding seawater is equal.4 area equation of third electrode 3 and the 4th electrode, is parallel to each other, and is connected by front-end circuit 21, surveys
Then amount accesses current-to-voltage convertor 40,31 He of input resistance of current-to-voltage convertor 40 by the current signal of electrode
It is equal that the resistance of seawater is surrounded between third electrode 3 and the 4th electrode 4.5th electrode 5 and 6 area equation of the 6th electrode, mutually
In parallel, it is connected by front-end circuit 22, then measurement accesses current-to-voltage convertor 40, electric current electricity by the current signal of electrode
It is equal that the resistance of seawater is surrounded between the input resistance 32 and the 5th electrode 5 and the 6th electrode 6 of pressure converter 40.Three groups of electrode phases
It is mutually orthogonal, the electric field signal of three components is measured respectively.The current signal of acquisition is converted into voltage by current-to-voltage convertor 40
Signal is simultaneously modulated and amplifies, and the analog signal of acquisition is converted into digital signal by analog-digital converter 41, and microcontroller 42 is right
Input signal carries out control operation, while being responsible for and external data transmission and interworking.Memory 43 is for receiving data
Information is simultaneously stored to storage unit.
As shown in figure 3, instrument room 7 is made of high-strength insulating material, such as engineering plastics, nylon, have it is upper and lower, left,
Right, six square-shaped planars of front and rear, form a regular regular hexahedron, and the area of each plane is 1m2, close inside instrument room
Envelope, and extraneous seawater are not turned on.Instrument room 7 has positive buoyancy, floats on sea withouyt pedestal 15.
First electrode 1, second electrode 2, third electrode 3, the 4th electrode 4, the 5th electrode 5 and the 6th electrode 6 are plate electricity
Pole can be the unpolarizable electrodes such as traditional metal electrode or silver-silver chloride；There are six electrode is total, it is separately mounted to instrument
In six planes outside device cabin 7, every two parallel pole constitutes one group, and measurement and the electric current of electrode plane vertical direction are believed
Number；Six electrodes one share three groups, mutually orthogonal, measure the current signal in three directions.
Suspension hook 8 is mounted on the top of instrument room, and for the lifting of electric field instrument, suspension hook 8 is made of nonmagnetic metal material,
Such as titanium alloy, stainless steel.
Underwater sound probe 9 is mounted on the top of instrument room 7, receives for underwater acoustic communication signal and response, change are described portable
The buoyant properties of formula three-component submarine electric field instrument realize that instrument room 7 is separated with the release of pedestal 15.
Control circuit 10 is used to handle the manipulation of depth of water communication signal and seabed Collecting operation.
Power supply module 12 is used to provide the described the electricity supply of portable three-component submarine electric field instrument, using chargeable lithium electricity
Pond group.
The pressure-resistant hollow glass ball that glass cabin ball 13 is 17 inches of diameter, is fixedly mounted on inside instrument room 7, signal control
Circuit 10, data acquisition circuit 11 and power supply module 12 are fixedly mounted on inside glass cabin ball 13.
Underwater electrical connector 14 is for connecting six electrodes and data acquisition circuit 11.
Pedestal 15 is fixedly mounted on the lower part of instrument room, and cement block or nonmagnetic environment-friendly materials can be used, and is used for as institute
It states electric field instrument and gravity traction is provided, instrument room 7 and pedestal 15 separate after the completion of offshore construction, and pedestal 15 is left on seabed.
Supporting beam 16 is used for retainer instrument cabin 7 in pedestal 15, using nonmagnetic metal material such as titanium alloy, stainless steel etc.
Manufactured cylindric or square column plays support fixed function, guarantees the bottom surface of instrument room 7 from the about 0.5m of pedestal 15.
Uncoupling rigging 17 is for connection and separate apparatus cabin 7 and pedestal 15, and when electric field instrument is installed, uncoupling rigging 17 is for connecting
Instrument room 7 and pedestal 15 are connect, guarantees that the two is fixed together；After the completion of acquisition tasks, underwater sound probe 9 receives release signal simultaneously
It is transferred to control circuit 10, control circuit 10 sends order of breaking off relations, and uncoupling rigging 17 generates electrochemistry after receiving unhook order
Corrosiveness disconnects the physical connection of instrument room 7 and pedestal 15.
The workflow of portable three-component submarine electric field instrument are as follows: 1) electrode pair and installation fix each of electric field instrument
Component；2) before portable three-component submarine electric field instrument is launched sea, each component function test, confirmation portable three are carried out
Component submarine electric field instrument function normally enters in next step afterwards, otherwise returns to maintenance；3) GPS is carried out in ship's deck to clock and to set
Surely the parameter of time and acquisition are recorded；4) portable three-component submarine electric field instrument is put into sea from deck upslide with boat-carrying loop wheel machine,
Free subsidence records electricity according to setting time and continuous parameters to seabed to portable three-component submarine electric field instrument under the effect of gravity
Field signal, and be stored in the internal storage of portable three-component submarine electric field instrument；5) after to be collected or acquire into
When needing collection apparatus in row, release signal is issued by shipboard sonar system, portable three-component submarine electric field instrument is received letter
After number, uncoupling rigging starts to generate electrochemical corrosion effect, and about instrument room and pedestal are detached from after five minutes, and instrument room floats automatically
To the water surface, then instrument room salvaging is gone on board；6) instrument room salvaging is fixed on deck to be cleaned and extracted and be remembered after going on board
The data of record are analyzed and processed.
Above-described specific implementation example, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely the specific implementation example of the utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of portable three-component submarine electric field instrument, including first electrode (1), second electrode (2), third electrode (3), the 4th
Electrode (4), the 5th electrode (5), the 6th electrode (6), instrument room (7), suspension hook (8), underwater sound probe (9), signal control circuit
(10), data acquisition circuit (11), power supply module (12), pressure-resistant glass cabin ball (13), underwater electrical connector (14), pedestal (15),
Supporting beam (16) and uncoupling rigging (17)；
It is characterized by:
First electrode (1) and second electrode (2), third electrode (3) and the 4th electrode (4), the 5th electrode (5) and the 6th electrode
It (6) is plate electrode, direction is parallel two-by-two, and shape is equal with area difference, measures the current signal in three directions.
2. portable three-component submarine electric field instrument according to claim 1, which is characterized in that instrument room (7) is using high-intensitive
Insulating materials is made, and has six, upper, lower, left, right, front and rear square-shaped planar, forms a regular regular hexahedron.
3. portable three-component submarine electric field instrument according to claim 1, which is characterized in that suspension hook (8) is mounted on instrument room
Top, the lifting for the electric field instrument；
Underwater sound probe (9) is mounted on the top of instrument room (7), for the reception of underwater acoustic communication signal and response, changes the seabed
The buoyant properties of electric field instrument；
Control circuit (10) is used to handle the manipulation of depth of water communication signal and seabed Collecting operation；
Data acquisition circuit (11) is used for the current signal of receiving electrode acquisition；
Power supply module (12) is used to provide the described the electricity supply of submarine electric field instrument；
The pressure-resistant hollow glass ball that glass cabin ball (13) is 17 inches of diameter is fixedly mounted on instrument room (7) inside, signal control
It is internal that circuit (10), data acquisition circuit (11) and power supply module (12) are fixedly mounted on glass cabin ball (13)；
Underwater electrical connector (14) is for connecting six electrodes and Acquisition Circuit (11)；
Pedestal (15) is fixedly mounted on the lower part of instrument room, for providing gravity traction for the electric field instrument；
Supporting beam (16) is for retainer instrument cabin (7) in pedestal (15)；
Uncoupling rigging (17) is for connecting and separate apparatus cabin (7) and pedestal (15).
4. portable three-component submarine electric field instrument according to claim 1, which is characterized in that first electrode (1), second electrode
(2), third electrode (3), the 4th electrode (4), the 5th electrode (5) and the 6th electrode (6) material are metal electrodes, or silver-
Silver chlorate unpolarizable electrode, the shapes of six electrodes is consistent, area equation, is separately mounted to six faces of instrument room (7) appearance
On, the parallel electrode of every two constitutes one group, and the current signal of measurement and electrode vertical direction, current signal is acquired by data
Circuit (11) is converted, amplified and is stored.
5. portable three-component submarine electric field instrument according to claim 1, which is characterized in that first electrode (1), second electrode
(2), third electrode (3), the 4th electrode (4), the 5th electrode (5) and the 6th electrode (6) constitute three groups of parallel poles.
6. portable three-component submarine electric field instrument according to claim 1, which is characterized in that every group of parallel pole is in the seawater
Contact resistance and data acquisition circuit (11) the sum of front-end circuit resistance, the hexahedron inland sea water power with six electrodes surroundings
It hinders equal.
7. portable three-component submarine electric field instrument according to claim 1, which is characterized in that instrument room (7) is using high-intensitive
Insulating materials is made, and has six, upper, lower, left, right, front and rear square-shaped planar, forms a regular regular hexahedron, in instrument room
Portion's sealing, and extraneous seawater are not turned on, and instrument room has positive buoyancy.
8. portable three-component submarine electric field instrument according to claim 1, which is characterized in that glass cabin ball (13) is diameter 17
The pressure-resistant hollow glass ball of inch, is fixedly mounted on inside instrument room, and Acquisition Circuit and power unit are fixedly mounted on glass
Inside the ball of cabin.
9. portable three-component submarine electric field instrument according to claim 1, which is characterized in that uncoupling rigging (17) is for connecting
With separate apparatus cabin and pedestal, when electric field instrument is installed, uncoupling rigging guarantees that the two is fixed on one for connecting instrument room and pedestal
It rises；After the completion of acquisition tasks, uncoupling rigging generates electrochemical corrosion effect, disconnects the physical connection of instrument room and pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615106.6U CN208255317U (en) | 2018-04-27 | 2018-04-27 | Portable three-component submarine electric field instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615106.6U CN208255317U (en) | 2018-04-27 | 2018-04-27 | Portable three-component submarine electric field instrument |
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| Publication Number | Publication Date |
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| CN208255317U true CN208255317U (en) | 2018-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828328A (en) * | 2018-04-27 | 2018-11-16 | 中国科学院地质与地球物理研究所 | Portable three-component submarine electric field instrument |
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2018
- 2018-04-27 CN CN201820615106.6U patent/CN208255317U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828328A (en) * | 2018-04-27 | 2018-11-16 | 中国科学院地质与地球物理研究所 | Portable three-component submarine electric field instrument |
| CN108828328B (en) * | 2018-04-27 | 2023-11-28 | 中国科学院地质与地球物理研究所 | Portable three-component submarine electric field instrument |
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