CN208172106U - A kind of ocean electric field measurement sensor - Google Patents
A kind of ocean electric field measurement sensor Download PDFInfo
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- CN208172106U CN208172106U CN201820615088.1U CN201820615088U CN208172106U CN 208172106 U CN208172106 U CN 208172106U CN 201820615088 U CN201820615088 U CN 201820615088U CN 208172106 U CN208172106 U CN 208172106U
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Abstract
The utility model discloses a kind of ocean electric field measurement sensors comprising：Electrode body (1) is made of silver-based (20), adhesive layer (21), protecting film (22), for sensing electric field signal；The relative motion of seawater Yu electrode body (1) for guard electrode body (1) by external collision, while being slowed down in electrode cabin (2)；Solid filler (3) is mounted on the gap between electrode body (1) and electrode cabin (2)；Pedestal (4), for sealing and fixing for electrode body (1) and underwater electrical connector (5)；Underwater electrical connector (5), for conducting the signal of detection；Connecting line (6) is metal silver wire, is used for connection electrode body (1) and underwater electrical connector (5)；Pedestal inside cabin (7) is for providing sensor encapsulated space.The utility model effectively overcomes the shortcomings that silver chlorate is easy to fall off in routine techniques, effectively increases the long-time stability of electrode；By coating processing can erosion with blocking harmful foreign ion to electrode, can be used as the measuring electrode under complex environment.
Description
Technical field
The utility model belongs to geophysical survey field, particularly belongs to marine surveys field more particularly to a kind of ocean
Electric field measurement sensor.
Background technique
Seabed electric field signal is in, based on low-frequency signal, especially in geophysical exploration, to obtain DEEP STRUCTURE
The time for needing to acquire is very long.Carry out in marine environment the outstanding problem that faces of electric field measurement first is that signal is too weak, and in addition one
A problem is that seawater has strong corrosive, requires the long-time stability of detection sensor very high.
Silver/silver chloride electrode is a kind of common reference electrode, has exchange current density big, and hypopolarization, impedance is low, electricity
The advantages that position is constant is widely used in fields such as ocean engineering, bioelectricity detections.The existing a large amount of texts of related technology of preparing
Offer and Patent Publication, traditional production method first is that electrochemical treatments make its surface chlorination form chlorine by being electrolysed Processing Ag
Change the thin layer of silver, forms silver/silver chloride electrode.In seawater hyperbaric environment, the common silver/silver chloride electrode in laboratory can not make
With, it is therefore desirable to special technology of preparing.Solid reference electrode is made using compacting sintering processing in patent 03138856.6, is fitted
In the seawater for long period of soaking, but the binding force of pressed by powder material is poor, limited using depth in high pressure sea water environment；
Patent 2012100554037 is based on Conventional electrochemical processing and proposes a kind of electrode assembly and preparation method, due to conventional electrification
The silver chloride layer for learning processing adheres to loosely, and surface-active layer is easy to fall off after a period of use, influences the steady in a long-term of electrode
Property.Meanwhile various composition is complicated in seawater, especially bromine, iodine plasma are also easy to produce erosion to silver chlorate, lead to electrode failure.
To realize high precision electro field measurement, the electrode development of high stability is always the hot spot of this field researcher concern
Problem.
Utility model content
In view of the deficiencies of the prior art and problem, the utility model proposes a kind of good ocean electric field measurements of long-time stability
Sensor.
According to the technical solution of the utility model, a kind of ocean electric field measurement sensor is provided comprising：Electrode body, electricity
Pole cabin, solid filler, pedestal, underwater electrical connector, connecting line, pedestal inside cabin, wherein electrode body is by silver-based, adhesive layer, protection
Film composition, silver-based are made of silver foil, and by electrochemical treatments in one silver of its Surface Creation, silver chlorate adhesive layer, protecting film covers
It covers on adhesive layer, electrode body is for sensing electric field signal；Electrode cabin, by external collision, subtracts simultaneously for guard electrode body
The relative motion of slow seawater and electrode body；Solid filler is mounted on the gap between electrode body and electrode cabin；Pedestal is for solid
The sealing of fixed electrode body and underwater electrical connector；Connecting line is metal silver wire, is used for connection electrode body and underwater electrical connector；Pedestal
Inside cabin is for providing sensor encapsulated space.
Preferably, electrode cabin material is corrosion-resistant, high voltage bearing high molecular polymer (such as polyethylene) antipriming pipe, hole
100 μm of diameter, seawater can pass freely through, while the large particulate matter inside and outside electrode cabin is isolated.
Preferably, solid filler is Inert absorbent (such as silica), and its role is in further filtering sea
Impurity slows down the corrosion of electrode body.
Preferably, pedestal is the nonmetallic materials of seawater corrosion resistance, the circle as made of ABS engineering plastics, polytetrafluoroethylene (PTFE)
Pipe, one end is for fixing underwater electrical connector, and the other end is for fixing electrode cabin.
Using the technical solution of the utility model, following beneficial effect can have：
1, this ocean electric field measurement sensor provided by the utility model is handled based on reverse electrolysis, on silver-based surface
Silver chlorate adhesive layer in restore part silver, extend silver-based surface is effectively conducted layer, can be allowed by high-temperature heat treatment
The silver chlorate adhesive layer on surface firmly attaches on silver-based, and effectively overcome that silver chlorate in routine techniques is easy to fall off lacks
Point substantially increases the long-time stability of electrode.
2, this ocean electric field measurement sensor provided by the utility model, passes through the coated film on silver chlorate adhesive layer
Layer, on electrodes conduct performance without influence, while can erosion with blocking harmful foreign ion to electrode, avoid conventional chlorinating silver
The case where electrode is interfered and failed vulnerable to bromine, iodide ion, can be used as the measuring electrode under complex environment.
Detailed description of the invention
Fig. 1 is the ocean electric field measurement sensor structure figure according to the utility model；
Utility model Fig. 2 is the electrode body schematic cross-section 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.
Ocean electric field measurement sensor structure figure as shown in Figure 1 comprising：Electrode body 1, by silver-based 20, adhesive layer 21,
Protecting film 22 forms, and silver-based 20 is made of silver foil, by electrochemical treatments in one silver of its Surface Creation, silver chlorate adhesive layer
21, protecting film 22 is covered on adhesive layer 21, and electrode body 1 is for sensing electric field signal；Electrode cabin 2 is used for guard electrode body 1
By external collision, while slowing down the relative motion of seawater Yu electrode body 1；Solid filler 3 is mounted on electrode body 1 and electrode
Gap between cabin 2；Pedestal 4, for sealing and fixing for electrode body 1 and underwater electrical connector 5；Underwater electrical connector 5, for conducting
The signal of detection；Connecting line 6 is metal silver wire, is used for connection electrode body 1 and underwater electrical connector 5；Pedestal inside cabin 7 is for providing biography
Sensor encapsulated space.
In the present invention, 2 material of electrode cabin is corrosion-resistant, high voltage bearing high molecular polymer antipriming pipe, such as
Polyethylene porous pipe, 100 μm of aperture, seawater can pass freely through, which has certain mechanical strength, can protect electrode
Body 1 is not easy clashing and breaking；Since aperture is small, the relative motion of seawater and electrode is slowed down significantly, reduces seawater flowing and signal is surveyed
The influence of amount, while the large particulate matter inside and outside electrode cabin 2 is isolated, it avoids additionally invading.
In the present invention, the solid filler 3 is Inert absorbent, and such as silica, its role is into one
Impurity in filtering sea is walked, the corrosion of electrode body is slowed down.
In the present invention, the pedestal 4 is the nonmetallic materials of seawater corrosion resistance, such as ABS engineering plastics, polytetrafluoro
Round tube made of ethylene, one end is for fixing underwater electrical connector 5, and one section for fixing electrode cabin 2.
Fig. 2 illustrates the structural schematic diagram of electrode body 1, is made of silver-based 20, silver, silver chlorate adhesive layer 21, protecting film 22,
1 preparation method of electrode body and encapsulation step are as follows：
(1) it pre-processes.Select high-purity (99.99%) silver with certain specification (long 150mm, width 30mm, thickness 0.2mm)
Foil pre-processes silver-based 20 as silver-based 20, including the work such as oil removing and cleaning, thoroughly removes the dirt on 20 surface of silver-based
Layer makes silver foil surface active, improves the binding force of surface adhesive layer.The silver foil of other two groups of same sizes is used same pre-
Electrolysis auxiliary electrode piece is made in processing mode.
(2) electrolysis is handled.It, will using high purity water and analytically pure sodium chloride proportion at the sodium chloride solution of 35g/L concentration
Pretreated silver-based 20 is placed in the solution to be electrolysed twice, using by same specification and pretreatment in electrolytic process
Electrode slice afterwards participates in reaction.Anode electrolysis is carried out to silver-based 20 first, is carried out using galvanostatic method, current density 50A/
m2, electrolysis electricity 30000As/m2, make silver-based 20 surface uniform fold, one layer of thicker silver chloride layer, extended surface it is effective
Conducting shell.Then, reversion electrolysis polarity is carried out catholyte to silver-based 20, is carried out using galvanostatic method, current density 10A/
cm2, electrolysis electricity 15000As/m2, 50% silver chloride reduction is made to become silver.After being electrolysed twice, 20 surface of silver-based forms one
A adhesive layer 21 formed by silver, agcl mixt.
(3) heat treatment for solidification.Electrolysis treated silver-based 20 and silver, silver chlorate adhesive layer 21 are cleaned with high purity water, put
It is placed in resistance furnace, is heated at high temperature.The heating rate of resistance furnace is 5 DEG C/min, and temperature upper limit control is 400 DEG C, herein
Temperature 1 hour, attach to silver, silver chlorate adhesive layer 21 firmly on silver-based 20.The processing effectively improves adhesive layer
21 firmness, improves sensor stability.
(4) coating processing.Using certain method, disperse as Hummers method matches out the graphene oxide that concentration is 1g/L
Liquid, by after heat treatment silver-based 20 and adhesive layer 21 immerse in proportioned graphene oxide dispersion, stand 10s after take out,
It is then placed in resistance furnace and is dried, Temperature Control of Electric Resistance Furnace is at 50 DEG C.On 21 surface layer of adhesive layer, formation is one thin after drying
Protecting film 22.Protecting film 22 is graphene oxide film, has very strong hydrophily, does not influence electric conductivity, while interface
Good mechanical properties can carry out effective protection to silver-based 20 and adhesive layer 21, and blocking harmful foreign ion (bromine, iodide ion) is right
The infringement of electrode avoids complicated ions bring corrosion function in seawater.Electrode body 1 is formed after coating processing.
(5) sensor encapsulates.Electrode body 1 is put into electrode cabin 2 first, solid filler 3 is put into, then connects watertight
Plug-in unit 5 is fixed on pedestal 4, and underwater electrical connector 5 is connect by connecting line 7 with electrode body 1, and pedestal inside cabin 6 is close with epoxy resin
Envelope, obtains complete sensor.
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 (7)
1. a kind of ocean electric field measurement sensor comprising：Electrode body, electrode cabin, solid filler, pedestal, underwater electrical connector,
Connecting line, pedestal inside cabin, it is characterised in that：
Electrode body is made of silver-based, adhesive layer, protecting film, and silver-based is made of silver foil, by electrochemical treatments in its Surface Creation
One silver, silver chlorate adhesive layer, protecting film are covered on adhesive layer, and electrode body is for sensing electric field signal；Electrode cabin is used for
Guard electrode body slows down the relative motion of seawater and electrode body by external collision.
2. electric field measurement sensor in ocean according to claim 1, it is characterised in that：Solid filler is mounted on electrode body
Gap between electrode cabin.
3. electric field measurement sensor in ocean according to claim 1, it is characterised in that：Pedestal for fix electrode body and
The sealing of underwater electrical connector.
4. electric field measurement sensor in ocean according to claim 1, it is characterised in that：Connecting line is metal silver wire, is used for
Connection electrode body and underwater electrical connector；Pedestal inside cabin is for providing sensor encapsulated space.
5. electric field measurement sensor in ocean according to claim 1, it is characterised in that：Electrode cabin material is macromolecule
Polyalcohol stephanoporate pipe.
6. electric field measurement sensor in ocean according to claim 5, it is characterised in that：Electrode cabin material is polyethylene
Antipriming pipe, 100 μm of aperture, while the large particulate matter inside and outside electrode cabin is isolated.
7. electric field measurement sensor in ocean according to claim 1, it is characterised in that：The solid filler is inertia suction
Attached dose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615088.1U CN208172106U (en) | 2018-04-27 | 2018-04-27 | A kind of ocean electric field measurement sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615088.1U CN208172106U (en) | 2018-04-27 | 2018-04-27 | A kind of ocean electric field measurement sensor |
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| CN208172106U true CN208172106U (en) | 2018-11-30 |
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| CN201820615088.1U Active CN208172106U (en) | 2018-04-27 | 2018-04-27 | A kind of ocean electric field measurement sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174704A (en) * | 2019-06-24 | 2019-08-27 | 青岛科技大学 | A kind of electric field sensor for marine environments based on TRIZ theory |
| US20220404517A1 (en) * | 2021-06-16 | 2022-12-22 | Agency For Defense Development | Core electrodes based on multiple rod, and underwater electric field sensor electrodes and underwater electric field sensor having the same |
-
2018
- 2018-04-27 CN CN201820615088.1U patent/CN208172106U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174704A (en) * | 2019-06-24 | 2019-08-27 | 青岛科技大学 | A kind of electric field sensor for marine environments based on TRIZ theory |
| US20220404517A1 (en) * | 2021-06-16 | 2022-12-22 | Agency For Defense Development | Core electrodes based on multiple rod, and underwater electric field sensor electrodes and underwater electric field sensor having the same |
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