CN205786243U - For measuring the sensor of metal pipe line outer wall corrosion - Google Patents
For measuring the sensor of metal pipe line outer wall corrosion Download PDFInfo
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- CN205786243U CN205786243U CN201620496941.3U CN201620496941U CN205786243U CN 205786243 U CN205786243 U CN 205786243U CN 201620496941 U CN201620496941 U CN 201620496941U CN 205786243 U CN205786243 U CN 205786243U
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- cover plate
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- roundel
- pipe line
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Abstract
nullFor measuring the sensor of metal pipe line outer wall corrosion，Including disc cover plate、Reference electrode post、Auxiliary electrode and annular base，The center of disc cover plate is provided with cover plate mesopore，It is threaded in the outside of disc cover plate roundel，Reference electrode post includes by reference electrode binding post，Connect post and the top of chlorination filamentary silver composition，With the bottom being made up of fastening screwed pipe and glass tubing，The connection column sleeve on top is in the outside of bottom glass pipe，The chlorination filamentary silver connected in post stretches to glass tubing bottom，The platinized platinum of auxiliary electrode is arranged at the lower section of the roundel of disc cover plate，The inside of annular base arranges annular magnet，Whole device is adsorbed on the surface of Experiment Metal，This sensor response is sensitive，It is easy to carry，Simple operation，Metal pipe line outer wall application breakage can be judged rapidly under state under arms、Damaged type and extent of corrosion.
Description
Technical field
This utility model relates to metal erosion measurement apparatus, particularly for measuring outside metal pipe line
The sensor of wall erosion.
Background technology
Having investigation to show, the economic loss that the whole world causes because of corrosion every year reaches 6,000 hundred million to 12000
Hundred million yuan, account for the 2%-4% of various countries' gross national product.Especially for water conservancy or oil gas pipeline,
In its running, the safety of pipeline is significant.Affect metal pipe line Years Of Service because of
Have a lot, such as pipeline work pressure, Material Processing, damage from third-party, metal erosion, painting
The factors such as layer ruptures all can cause pipeline service life to shorten.Wherein, corrosion factor takes for pipeline
The influence degree of the labour time limit is the most serious.
The environment causing metal erosion varies, even if commaterial, in different corrosion
Under environment, its etch state there is also difference.For the Service Environment of metal pipe line, the corruption of pipe line steel
Erosion type can be divided into homogeneous corrosion, spot corrosion, crevice corrosion, erosion corrosion and stress corrosion etc..?
During the military service of pipeline, corrosion product is formed and can be deposited on the surface of pipe line steel, affects pipeline
The further corrosion process of steel.The corrosion mechanism of pipe line steel is the composition by its corrosion product and structure
Being determined, the most so, the character of corrosion scales also determines the change of corrosion rate.
Because of the seriousness of feed-line corrosion failure consequence, and the complexity of its corrosion process, right
Metal pipe line etch state in-service detects easily and evaluates accurately, seems outstanding
For important.In terms of Corrosion monitoring and evaluation, electrochemical method has the advantage of uniqueness.To be detected
Typically it is covered with protective coating with the metal pipe line outer wall evaluated, is metal/coating system.Along with military service
The prolongation of time, protective coating degradation failure, pipeline steel surface has corrosion product to generate, at this moment becomes
For metal/rusty scale/coating system.Under coating, metal erosion is mainly electrochemical corrosion, protective coating
In failure procedure, along with a series of electrochemical change.Changed by detection electrochemical signals,
The multidate information of metal erosion and coating protection performance change can be obtained, it is achieved corrosion resistance coating with
Quantitative and the semi-quantitative assessment of pipe line steel corrosion process.At present, domestic to metal pipe line corrosion resisting property
Appraisal procedure be only limitted to the deformation to pipeline, be cladded with coating use state monitoring, or use
Outer wall has occurred nondestructive inspection means the pipeline of breakage carry out destroying position and damaged degree is detected,
In combination with parameters such as pipeline surface morphology change, between the corrosion condition that metal pipe line is overall is made
Connect evaluation, it is impossible to the etch state under metal pipe line under arms state is carried out quantitative assessment.Based on
Electrochemical measurement principle, carries out on-line quick detection and evaluation to the etch state of metal pipe line outer wall
And it is applicable to electrochemical measurement sensor and the evaluation methodology of all size metal pipe line outer wall, in state
Inside used.
Utility model content
This utility model overcomes shortcoming of the prior art, it is provided that be used for measuring outside metal pipe line
The sensor of wall erosion.
In order to solve above-mentioned technical problem, this utility model is achieved through the following technical solutions:
For measure the sensor of metal pipe line outer wall corrosion include disc cover plate, reference electrode post,
Auxiliary electrode and annular base, specifically:
Disc cover plate is made up of two up big and down small disc-shaped structures, and the disk of top is great circle
Dish, the disk of lower section is roundel, and the center of disc cover plate is provided with cover plate mesopore,
Cover plate mesopore is divided into two sections hole, and the diameter of upper sector hole is more than the diameter of lower sector hole, in upper sector hole
It is provided with screw thread, for being connected with the fastening screwed pipe of reference electrode post, arranges in the outside of roundel
Screw thread, for the connection with annular base；
In technique scheme, wherein said roundel a diameter of big disk diameter
1/3-1/2；
Reference electrode post includes, by reference electrode binding post, connecting post and the top of chlorination filamentary silver composition,
With the bottom being made up of fastening screwed pipe and glass tubing；It is vertically arranged ginseng in the upper planar central connecting post
Connect post than electrode, connect post internal vertical and upper plane is provided with chlorination filamentary silver, chlorination filamentary silver
Top connects the upper plane of post through mesopore, and is connected the bottom of post with reference electrode connected；At fastening spiral shell
The lower end outside of pipe is provided with screw thread, for being connected with sector hole on the cover plate of disc cover plate, tightly
Gu the inside of screwed pipe arranges glass tubing, glass tubing upper opening, inner hollow, in order to fill agar
With saturated potassium chloride solution as salt bridge, porous ceramics is set in the lower end of glass tubing, the company on top
Connecing the column sleeve outside at bottom glass pipe, the chlorination filamentary silver connected in post stretches to glass tubing bottom；
Top keeps being connected with bottom, and composition reference electrode post is overall；
In technique scheme, distance glass tubing bottom, wherein said chlorination filamentary silver bottom away from
From for 0.5-2cm；
In technique scheme, described porous ceramics is cordierite, material of aluminum titanate, as
The filter medium of buffer solution, the thickness of porous ceramics is 1-10mm；
Auxiliary electrode includes platinized platinum and auxiliary electrode binding post, and platinized platinum is arranged at the little of disc cover plate
The lower section of disk, area is identical with the area of roundel, and the central authorities of platinized platinum are provided with circular hole, reference
Electrode column glass tubing passes platinized platinum central circular hole, and arranges clamp nut, for being fixed on by platinized platinum
On the roundel of disc cover plate, auxiliary electrode binding post is vertically installed in disc cover plate, auxiliary
Help the horizontal range radius less than roundel in the electrode terminal distance disc cover plate center of circle, auxiliary
Electrode terminal runs through big disk and roundel, and lower end is connected with platinized platinum, and a upper end part is exposed to
The top of the big disk of disc cover plate；
In technique scheme, described auxiliary electrode binding post is exposed to the big of disc cover plate
Partial-length above disk accounts for the 1/3-1/2 of entire length；
In technique scheme, described platinized platinum is Ag/AgCl electrode；
Annular base is annular cylinder, the periphery area of a circle size of annulus and disc cover plate
The area of big disk is identical, the inner circumferential area of a circle size of annulus and the face of the roundel of disc cover plate
Long-pending identical, the inner side of annular base is threaded, for being connected with the roundel of disc cover plate,
The thickness of annular base is more than the thickness of the roundel of disc cover plate, annular base and disk
After shape cover plate is threaded connection, forming groove, this groove is as the sponge filling infiltration buffer
Space, refer to subsequent experimental method；The inside of annular base arranges annular magnet, and being used for will
Whole device adsorbs on the surface of Experiment Metal, arranges air ring at the edge of annular base inner circle
Circle；
In technique scheme, wherein said roundel height is annular substructure height
1/3-1/2；
In technique scheme, the wherein said area that groove floor area is platinized platinum, highly
The difference of the height of the roundel of disc cover plate is deducted for the height of annular base；
In technique scheme, it is downward that wherein said annular magnet is arranged at annular base
Side；
When using sensor test of the present utility model, follow the steps below:
Step 1: will fill agar and saturated potassium chloride solution in glass tubing, as in reaction
Salt bridge,
Step 2: by connection column sleeve outside glass tubing, make chlorination filamentary silver stretch to glass tubing bottom,
Reference electrode post is overall, it is connected with disc cover plate by screw thread, disc cover plate is passed through spiral shell
Stricture of vagina is connected with annular base,
Step 3: fill the adsorbing material of infiltration buffer solution in groove,
Step 4: whole device is fixed on sensor surface by annular magnet, and keeps sealing,
Using test metal corresponding to groove as working electrode, platinized platinum as auxiliary electrode, working electrode with
The area of auxiliary electrode is consistent, chlorination filamentary silver as reference electrode,
Step 5: electrochemical workstation is connected on reference electrode binding post and auxiliary electrode binding post,
Can test.
In technique scheme, wherein said adsorbing material is sponge.
Compared with prior art, the beneficial effects of the utility model are: this sensor production is simple,
It is quick on the draw, it is simple to carry, simple operation；Evaluation methodology is simply accurate, and data resolvability is high,
Can judge rapidly under state under arms metal pipe line outer wall application breakage, damaged type,
Extent of corrosion, and be applicable to the etch state of all size metal pipe line outer wall application is carried out quickly
Detection and evaluation.
Accompanying drawing explanation
Fig. 1 is this Sensor Reference electrode column and disc cover board connection structure schematic diagram.
Fig. 2 is reference electrode post side-looking structural representation.
Fig. 3 is disc cover plate side-looking structural representation.
Fig. 4 is disc cover plate bottom plane structure schematic diagram.
Fig. 5 is annular understructure schematic diagram.
Fig. 6 is annular base side TV structure schematic diagram.
Fig. 7 is annular base bottom planar structure schematic diagram.
Fig. 8 is that top layer is coated with the X65 pipe line steel of epoxy resin and soaks 10-50 in simulated seawater
It electrochemical impedance spectroscopy.
Fig. 9 is that top layer is coated with the X65 pipe line steel of epoxy resin and soaks the 10th day in simulated seawater
Erosion profile.
Figure 10 is that top layer is coated with the X65 pipe line steel of epoxy resin and soaks the 20th in simulated seawater
It erosion profile.
Figure 11 is that top layer is coated with the X65 pipe line steel of epoxy resin and soaks in simulated seawater
The electrochemical impedance spectroscopy of 140-200 days.
Figure 12 is that top layer is coated with the X65 pipe line steel of epoxy resin and soaks the 140th in simulated seawater
It erosion profile.
Figure 13 is that top layer is coated with the X65 pipe line steel of epoxy resin and soaks the 200th in simulated seawater
It erosion profile.
Figure 14 is this sensor overall structure schematic diagram.
Wherein 1 is reference electrode binding post, and 2 is chlorination filamentary silver, and 3 is auxiliary electrode binding post, 4
For glass tubing, 5 is fastening screwed pipe, and 6 is disc cover plate, and 7 is annular base, and 8 is annular
Magnet, 9 is platinized platinum, and 10 is clamp nut, and 11 is ring washer, and 12 is porous ceramics, and 13 are
Cover plate mesopore, 14 is roundel, and 15 is big disk, and 16 is upper sector hole, and 17 is lower sector hole, 18
For connecting post, 19 is groove.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings:
For measure the sensor of metal pipe line outer wall corrosion include disc cover plate, reference electrode post,
Auxiliary electrode and annular base, specifically:
Disc cover plate is made up of two up big and down small disc-shaped structures, and the disk of top is great circle
Dish, the disk of lower section is roundel, and the center of disc cover plate is provided with cover plate mesopore,
Cover plate mesopore is divided into two sections hole, and the diameter of upper sector hole is more than the diameter of lower sector hole, in upper sector hole
It is provided with screw thread, for being connected with the fastening screwed pipe of reference electrode post, arranges in the outside of roundel
Screw thread, for the connection with annular base；
In technique scheme, wherein said roundel a diameter of big disk diameter
1/3-1/2；
Reference electrode post includes, by reference electrode binding post, connecting post and the top of chlorination filamentary silver composition,
With the bottom being made up of fastening screwed pipe and glass tubing；It is vertically arranged ginseng in the upper planar central connecting post
Connect post than electrode, connect post internal vertical and upper plane is provided with chlorination filamentary silver, chlorination filamentary silver
Top connects the upper plane of post through mesopore, and is connected the bottom of post with reference electrode connected；At fastening spiral shell
The lower end outside of pipe is provided with screw thread, for being connected with sector hole on the cover plate of disc cover plate, tightly
Gu the inside of screwed pipe arranges glass tubing, glass tubing upper opening, inner hollow, in order to fill agar
With saturated potassium chloride solution as salt bridge, porous ceramics is set in the lower end of glass tubing, the company on top
Connecing the column sleeve outside at bottom glass pipe, the chlorination filamentary silver connected in post stretches to glass tubing bottom；
Top keeps being connected with bottom, and composition reference electrode post is overall；
In technique scheme, distance glass tubing bottom, wherein said chlorination filamentary silver bottom away from
From for 0.5-2cm；
In technique scheme, described porous ceramics is cordierite, material of aluminum titanate, as
The filter medium of buffer solution, the thickness of porous ceramics is 1-10mm；
Auxiliary electrode includes platinized platinum and auxiliary electrode binding post, and platinized platinum is arranged at the little of disc cover plate
The lower section of disk, area is identical with the area of roundel, and the central authorities of platinized platinum are provided with circular hole, reference
Electrode column glass tubing passes platinized platinum central circular hole, and arranges clamp nut, for being fixed on by platinized platinum
On the roundel of disc cover plate, auxiliary electrode binding post is vertically installed in disc cover plate, auxiliary
Help the horizontal range radius less than roundel in the electrode terminal distance disc cover plate center of circle, auxiliary
Electrode terminal runs through big disk and roundel, and lower end is connected with platinized platinum, and a upper end part is exposed to
The top of the big disk of disc cover plate；
In technique scheme, described auxiliary electrode binding post is exposed to the big of disc cover plate
Partial-length above disk accounts for the 1/3-1/2 of entire length；
In technique scheme, described platinized platinum is Ag/AgCl electrode；
Annular base is annular cylinder, the periphery area of a circle size of annulus and disc cover plate
The area of big disk is identical, the inner circumferential area of a circle size of annulus and the face of the roundel of disc cover plate
Long-pending identical, the inner side of annular base is threaded, for being connected with the roundel of disc cover plate,
The thickness of annular base is more than the thickness of the roundel of disc cover plate, annular base and disk
After shape cover plate is threaded connection, forming groove, this groove is as the sponge filling infiltration buffer
Space, refer to subsequent experimental method；The inside of annular base arranges annular magnet, and being used for will
Whole device adsorbs on the surface of Experiment Metal, arranges air ring at the edge of annular base inner circle
Circle；
In technique scheme, wherein said roundel height is annular substructure height
1/3-1/2；
In technique scheme, the wherein said area that groove floor area is platinized platinum, highly
The difference of the height of the roundel of disc cover plate is deducted for the height of annular base；
In technique scheme, it is downward that wherein said annular magnet is arranged at annular base
Side；
When using sensor test of the present utility model, follow the steps below:
Step 1: will fill agar and saturated potassium chloride solution in glass tubing, as in reaction
Salt bridge,
Step 2: by connection column sleeve outside glass tubing, make chlorination filamentary silver stretch to glass tubing bottom,
Reference electrode post is overall, it is connected with disc cover plate by screw thread, disc cover plate is passed through spiral shell
Stricture of vagina is connected with annular base,
Step 3: fill the adsorbing material of infiltration buffer solution in groove,
Step 4: whole device is fixed on sensor surface by annular magnet, and keeps sealing,
Using test metal corresponding to groove as working electrode, platinized platinum as auxiliary electrode, working electrode with
The area of auxiliary electrode is consistent, chlorination filamentary silver as reference electrode,
Step 5: electrochemical workstation is connected on reference electrode binding post and auxiliary electrode binding post,
Can test.
In technique scheme, wherein said adsorbing material is sponge.
Owing to annular base is embedded with one block of annular magnet, make sensor under the effect of strong magnet
Can be fixed on above metal pipe line, it is adaptable to all size metal pipe line.Reference electrode is AgCl
Electrode, stability is high, the suitability is wide；Auxiliary electrode is the platinized platinum of diameter 30mm, auxiliary electrode
The work area that area and working electrode are exposed in solution environmental is essentially identical, it is ensured that test data
Accuracy can adjust the height of roundel so that groove deep according to experiment needs in use
Degree changes.Detection utilizes electrochemical impedance spectral technology to test metal pipe line outer wall, test side
Method is simple, data acquisition is rapid, by being analyzed data, it can be determined that metal pipe line outer wall
Etch state and the integrity of coating and damaged degree.
Embodiment 1:
AutoLab 302N electrochemical workstation and the sensor developed is utilized to carry out electrochemical impedance
Test, test sample is X65 pipe line steel, and sample outer wall uniformly coats epoxy coating, test
Solution is 3.5wt% concentration sodium-chloride water solution (simulated seawater), and sponge is filled in after being filled test solution
Sensor base, test temperature 25 DEG C, test period is 50 days, and result is as shown in Figure 8.
Soak time was until the 10th day, and measured impedance complex number plane figure is still in single semi arch
Shape, the radius of capacitive reactance arc can be inferred that surveyed inner wall surface has higher coating electricity
Resistance (50M Ω * cm2), shows that its corrosion resistance is good.In order to be further characterized by the accurate of experimental data
Property, sample is positioned over amplifying observation under the full depth-of-field microscope of Keyemce VHX-2000, finds coating
Surface is the most smooth, does not has disrepair phenomenon to occur, as shown in Figure 9.
When soak time reaches 20 days, measured impedance complex number plane figure starts to present double volume and resists
The feature of arc, and the radius of capacitive reactance arc is obviously reduced.Illustrate that part solution can be through being coated with
Layer has penetrated into metal base surface, and the corrosion resistant protective of coating can gradually lose efficacy.In order to enter one
The accuracy of step validating experiment data, is positioned over the full depth-of-field microscope of Keyemce VHX-2000 by sample
Lower amplifying observation, finds that coating surface has the breakage of little area, and regional area metallic matrix is the most sudden and the most violent
Dew, is shown in Figure 10.
Embodiment 2:
AutoLab 302N electrochemical workstation and the sensor developed is utilized to carry out electrochemical impedance
Test, test sample is X65 pipe line steel, and sample outer wall uniformly coats epoxy coating, test
Solution is 3.5wt% concentration sodium-chloride water solution (simulated seawater), and sponge is filled in after being filled test solution
Entering sensor base, test temperature 25 DEG C, the testing time is respectively soaks the 140th day and the 200th
My god, result is as shown in figure 11.
When soaking the 200th day, measured impedance complex number plane figure starts to present the anti-arc+expansion of double volume
Dissipating three time constant features of impedance, capacitive reactance arc radius reduces substantially (30K compared with soaking early stage
Ω * cm2), illustrate that solution has been transmitted through coating and arrives metal base surface and corrode, coating
Corrosion resistant protective can lose efficacy.In order to be further characterized by the accuracy of experimental data, by sample
It is positioned over Keyemce VHX-2000 full depth-of-field microscope amplifying observation, finds that coating surface exists bigger
The bronzing corrosion product of area, there is serious breakage in coating.Figure 12, Figure 13 are respectively and soak
Specimen surface pattern after 140th day and the 200th day.
Above this utility model is described in detail, but described content is the most of the present utility model
Preferred embodiment, it is impossible to be considered for limiting practical range of the present utility model.Fan Yiben is practical
Impartial change that novel application range is made and improvement etc., all should still belong to of the present utility model specially
Within profit covering scope.
Claims (8)
1. for measuring the sensor of metal pipe line outer wall corrosion, it is characterised in that: include disc
Cover plate, reference electrode post, auxiliary electrode and annular base:
Disc cover plate is made up of two up big and down small disc-shaped structures, and the disk of top is great circle
Dish, the disk of lower section is roundel, and the center of disc cover plate is provided with cover plate mesopore,
Cover plate mesopore is divided into two sections hole, and the diameter of upper sector hole is more than the diameter of lower sector hole, in upper sector hole
It is provided with screw thread, for being connected with the fastening screwed pipe of reference electrode post, arranges in the outside of roundel
Screw thread, for the connection with annular base；
Reference electrode post includes, by reference electrode binding post, connecting post and the top of chlorination filamentary silver composition,
With the bottom being made up of fastening screwed pipe and glass tubing；It is vertically arranged ginseng in the upper planar central connecting post
Connect post than electrode, connect post internal vertical and upper plane is provided with chlorination filamentary silver, chlorination filamentary silver
Top connects the upper plane of post through mesopore, and is connected the bottom of post with reference electrode connected；At fastening spiral shell
The lower end outside of pipe is provided with screw thread, for being connected with sector hole on the cover plate of disc cover plate, tightly
Gu the inside of screwed pipe arranges glass tubing, glass tubing upper opening, inner hollow, in order to fill agar
With saturated potassium chloride solution as salt bridge, porous ceramics is set in the lower end of glass tubing, the company on top
Connecing the column sleeve outside at bottom glass pipe, the chlorination filamentary silver connected in post stretches to glass tubing bottom；
Top keeps being connected with bottom, and composition reference electrode post is overall；
Auxiliary electrode includes platinized platinum and auxiliary electrode binding post, and platinized platinum is arranged at the little of disc cover plate
The lower section of disk, area is identical with the area of roundel, and the central authorities of platinized platinum are provided with circular hole, reference
Electrode column glass tubing passes platinized platinum central circular hole, and arranges clamp nut, for being fixed on by platinized platinum
On the roundel of disc cover plate, auxiliary electrode binding post is vertically installed in disc cover plate, auxiliary
Help the horizontal range radius less than roundel in the electrode terminal distance disc cover plate center of circle, auxiliary
Electrode terminal runs through big disk and roundel, and lower end is connected with platinized platinum, and a upper end part is exposed to
The top of the big disk of disc cover plate；
Annular base is annular cylinder, the periphery area of a circle size of annulus and disc cover plate
The area of big disk is identical, the inner circumferential area of a circle size of annulus and the face of the roundel of disc cover plate
Long-pending identical, the inner side of annular base is threaded, for being connected with the roundel of disc cover plate,
The thickness of annular base is more than the thickness of the roundel of disc cover plate, annular base and disk
After shape cover plate is threaded connection, form groove；The inside of annular base arranges annular magnet,
For whole device is adsorbed on the surface of Experiment Metal, arrange at the edge of annular base inner circle
Ring washer.
2. the sensor for measuring metal pipe line outer wall corrosion as claimed in claim 1, it is special
Levy and be: the 1/3-1/2 of described roundel a diameter of big disk diameter.
3. the sensor for measuring metal pipe line outer wall corrosion as claimed in claim 1, it is special
Levy and be: the distance of described distance glass tubing bottom, chlorination filamentary silver bottom is 0.5-2cm.
4. the sensor for measuring metal pipe line outer wall corrosion as claimed in claim 1, it is special
Levy and be: described porous ceramics is cordierite, material of aluminum titanate, as the filtration of buffer solution
Medium, the thickness of porous ceramics is 1-10mm.
5. the sensor for measuring metal pipe line outer wall corrosion as claimed in claim 1, it is special
Levy and be: described auxiliary electrode binding post is exposed to the part above the big disk of disc cover plate
Length accounts for the 1/3-1/2 of entire length.
6. the sensor for measuring metal pipe line outer wall corrosion as claimed in claim 1, it is special
Levy and be: described platinized platinum is Ag/AgCl electrode.
7. the sensor for measuring metal pipe line outer wall corrosion as claimed in claim 1, it is special
Levy and be: the described 1/3-1/2 that roundel height is annular substructure height.
8. the sensor for measuring metal pipe line outer wall corrosion as claimed in claim 1, it is special
Levy and be: the height that the described area that groove floor area is platinized platinum, height are annular base
Deduct the difference of the height of the roundel of disc cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496941.3U CN205786243U (en) | 2016-05-26 | 2016-05-26 | For measuring the sensor of metal pipe line outer wall corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496941.3U CN205786243U (en) | 2016-05-26 | 2016-05-26 | For measuring the sensor of metal pipe line outer wall corrosion |
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| Publication Number | Publication Date |
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| CN205786243U true CN205786243U (en) | 2016-12-07 |
Family
ID=57408247
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891097A (en) * | 2016-05-26 | 2016-08-24 | 天津大学 | Sensor for measuring corrosion of outer wall of metal tube |
-
2016
- 2016-05-26 CN CN201620496941.3U patent/CN205786243U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891097A (en) * | 2016-05-26 | 2016-08-24 | 天津大学 | Sensor for measuring corrosion of outer wall of metal tube |
| CN105891097B (en) * | 2016-05-26 | 2019-04-23 | 天津大学 | It is a kind of for measuring the sensor of metal tube outer wall corrosion |
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Granted publication date: 20161207 Termination date: 20210526 |
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