CN103604740A - On-line electrochemical measuring method based on electric transmission line - Google Patents
On-line electrochemical measuring method based on electric transmission line Download PDFInfo
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- CN103604740A CN103604740A CN201310565339.1A CN201310565339A CN103604740A CN 103604740 A CN103604740 A CN 103604740A CN 201310565339 A CN201310565339 A CN 201310565339A CN 103604740 A CN103604740 A CN 103604740A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003792 electrolyte Substances 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 125000006850 spacer group Chemical group 0.000 claims description 34
- 230000005611 electricity Effects 0.000 claims description 30
- 238000005259 measurement Methods 0.000 claims description 30
- 238000000840 electrochemical analysis Methods 0.000 claims description 14
- 239000008151 electrolyte solution Substances 0.000 claims description 14
- 229920000297 Rayon Polymers 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 238000002848 electrochemical method Methods 0.000 abstract description 8
- 230000009931 harmful effect Effects 0.000 abstract description 4
- 230000005518 electrochemistry Effects 0.000 abstract 2
- 239000000126 substance Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000835 electrochemical detection Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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Abstract
The invention relates to an electrochemical measuring method, in particular to an on-line electrochemical measuring method based on an electric transmission line. According to the measuring method, an electrolytic cell assembly which can be connected directly with a metal component of the on-line electric transmission line is adopted and is directly communicated with the surface of the metal component. The round metal surface, exposed in an electrolytic tank, of the metal component is used as a working electrode; a proper amount of electrolyte is injected into the electrolytic tank, so that the electrolyte can be directly contacted with the working electrode; a reference electrode is stretched into the bottom of the electrolytic tank after being embedded to a salt bridge, and is about 2mm away from the working electrode at the bottom, and then an auxiliary electrode is stretched into the middle of the electrolytic tank, various electrodes and the electrochemistry measuring system are connected by virtue of wires, and thus the electrochemistry testing work can be carried out. The electrochemical measuring method provided by the invention has the advantages that components of the electric transmission line are not needed to be destroyed, a harmful effect is prevented from being generated on the electric transmission line, the safe operation of the electric transmission line is ensured, the on-line electrochemical measurement of the components of the electric transmission line is completely realized, the practicability is good, the mode of execution is simple and fast, and an aim that the corrosion rates of metal components of an electric network device are measured rapidly can be realized.
Description
Technical field
The present invention relates to a kind of electrochemical measuring method, particularly based on the online electrochemical measuring method of transmission line of electricity.
Background technology
Transmission line of electricity hardware (workpiece) is in atmospheric environment, owing to standing all the year round to expose to the weather, the environmental activity such as rain erosion, generally there is serious corrosion phenomenon in steel construction transmission tower and other metal parts, the safe operation of transmission line of electricity is formed to major hidden danger.Because the electrical network that transmission facility corrosion causes carries electrification to happen occasionally, caused tremendous economic loss, seriously restricted the development of electrical network, affected the safety and stability of electrical production.Therefore transmission line of electricity hardware is monitored for guaranteeing that transmission line of electricity safe operation is significant.
Compare with naturally exposing to test with the accelerated corrosion experiment such as soaking in salt fog, week, electro-chemical test is a kind of method of Fast Measurement rate of metal corrosion, is applicable to the online detection of transmission line of electricity hardware.Common electro-chemical test system is partly comprised of working electrode, contrast electrode, auxiliary electrode, salt bridge and electrolytic cell etc.In traditional electrical test chemical process, tested preparation of metals need to be become to working electrode, also be about to the sample of the shapes such as Metal Cutting slabbing, cylinder or square, and guarantee to have surface area definite, that be easy to calculating.With wire, be connected securely with sample, finally draw wire, the non-working surface of tested metal sample must insulate.Finally working electrode, contrast electrode, salt bridge and auxiliary electrode are placed in the electrolytic cell of a constant volume and carry out electro-chemical test.Yet online detection requirements is carried out on-the-spot in-situ test to hardware under almost harmless condition, its process can not cause harmful effect to transmission line of electricity, more impossible grid equipment member is cut down and is prepared into working electrode, therefore, under existence conditions, described on-line measurement is difficult to realize.
Summary of the invention
The object of the invention is to according to the deficiencies in the prior art part provide a kind of practicality good, without destroying transmission line of electricity hardware, guarantee transmission line of electricity safe operation based on the online electrochemical measuring method of transmission line of electricity.
The object of the invention is to realize by following approach:
Based on the online electrochemical measuring method of transmission line of electricity, its main points are, comprise the steps:
1) provide a kind of electrolytic cell assembly, it includes novel electrolytic cell and geometrical clamp.Wherein, electrolytic cell includes electrolyte container, square spacer plate and the workpiece connecting portion of upward opening.Square spacer plate, between electrolyte container and workpiece connecting portion, and is fixedly connected with workpiece connecting portion with electrolyte container respectively, and the week of square spacer plate is along the outstanding square ring boss (its function is to mate with geometrical clamp, is convenient to stationary electrolysis pond) that forms.Workpiece connecting portion is a kind of cylindrical component, along the axis of workpiece connecting portion, has opened cylindrical through hole, and this cylindrical through hole connects workpiece connecting portion and square spacer plate and is communicated to the inner chamber of electrolyte container.Geometrical clamp includes connecting portion and the screw rod of folder face and lower folder face in folder face, lower folder face, connection, upper folder face is a kind of U-shaped forked structure, A/F is consistent with the cross-sectional width of electrolyte container, screw has been opened at the middle part of lower folder face, screw rod is arranged in this screw, and top end face is arranged in geometrical clamp, and operating side is positioned at lower folder face outside, the upper folder face of geometrical clamp is parallel with lower folder face, and distance is therebetween greater than square ring boss to the distance between workpiece connecting portion bottom face.
2) electrolytic cell is seated on workpiece for measurement, now the bottom face of workpiece connecting portion pastes and touches on workpiece for measurement, two forks of the upper folder face of geometrical clamp are just in time stuck on electrolyte container, and on this, lower surface of folder face presses on square ring boss, lower folder face is positioned at workpiece connecting portion below, the top end face of screw rod contacts on the workpiece for measurement between workpiece connecting portion and lower folder face, rotating screw bolt makes its top end face withstand workpiece for measurement, geometrical clamp square shaped annular boss press down and to the upper top of workpiece for measurement between electrolytic cell is fixed on workpiece for measurement.The part that now workpiece for measurement is connected with the cylindrical through hole of workpiece connecting portion is exposed a circular metal surface in electrolytic cell, using this circular metal surface as working electrode;
4) in electrolytic cell, inject appropriate electrolytic solution, the metal surface of whole circle is all contacted completely with electrolytic solution.
5) at the bottom of contrast electrode put into being stretched into electrolytic cell pond after salt bridge, and and bottom working electrode between at a distance of 2mm, then auxiliary electrode is stretched into electrolytic tank middle part, with wire, each electrode is connected with electro-chemical test system, after completing, can carry out conventional electro-chemical test work.
The invention has the advantages that: adopted and can be directly connected on online transmission line of electricity hardware, and the electrolytic cell that can directly connect with this metal component surface, the through hole that described electrolytic cell provides can obtain the circular metal face of a fixed-area when electrolytic cell is closely connected with workpiece for measurement, and usings this circular metal face as working electrode.Therefore without destroying transmission line of electricity workpiece, just can obtain easily the working electrode of a fixed-area, avoided transmission line of electricity to cause harmful effect, guaranteed transmission line of electricity safe operation, realized the online electrochemical measurement of transmission line of electricity workpiece completely, practicality is good, and embodiment simple and fast can be realized the object of Fast Measurement grid equipment metal parts corrosion rate.
The present invention can further be specially:
Described electrolyte container is a kind of annulus column structure, and bottom face is fixedly connected with by viscose with square spacer plate.
Or electrolyte container is a kind of square column structure, bottom face is fixedly connected with by viscose with square spacer plate.
Described square column structure can adopt four to have certain thickness plate and surround and form, the square spacer plate of take again forms a square container end of as, workpiece connecting portion is in square spacer plate below, the axis of its axis and electrolyte container is parallel or overlap, this is a kind of vertical structure, the electrochemical measurement when tested surface that is applicable to hardware is surface level.
Electrolyte container is a kind of square column structure, adopts four slabs and square spacer plate to surround and forms, and now square spacer plate is as the side panel of electrolyte container, and workpiece connecting portion is in the lateral surface of square spacer plate, and its axis is vertical with the axis of electrolyte container.
This is a kind of electrolytic cell structure of lateral recumbent posture, and workpiece connecting portion is in the side of electrolyte container, and is horizontal layout.The electrochemical measurement when tested surface that such structure is applicable to hardware is vertical plane, workpiece connecting portion is laterally perpendicular to surface of the work, and its cylindrical through hole connects square spacer plate equally, is communicated in the inner chamber of electrolyte container.
When cylindrical through hole is positioned at sidewall, it is specifically positioned at the latter half of sidewall.
Can make like this electrolytic solution be full of sooner through hole, electrolytic solution is fully contacted with working electrode.
Also include polytetrafluoroethylene gasket, it is between workpiece connecting portion bottom face and workpiece for measurement.
Described packing ring can increase tightness, can guarantee that like this electrolytic solution can not spill, and does not produce crevice corrosion during with Metal Contact to be measured.
The integrated structure of workpiece connecting portion, electrolyte container and square spacer plate.
Can avoid the intervention of third party's link like this and cause member complicated, need to install, meanwhile, also can effectively prevent that electrolytic solution from spilling because connecting undertighten, guaranteed the reliability of measuring.But it is high that manufacture craft requires, and may cause cost also higher, therefore conventionally adopt each several part to connect with viscose.
Described electrolytic cell adopts transparent organic glass to make.
Organic glass has good chemical stability and machining property, can adopt organic solvent to replace viscose better effects if when bonding.In addition, transparent characteristic can contribute to measure operation and the observation to measuring process.
In sum, the invention provides a kind of based on the online electrochemical measuring method of transmission line of electricity, adopt the electrolytic cell that connects through workpiece for measurement face, without destroying transmission line of electricity hardware, just can obtain easily the working electrode of a fixed-area, avoided transmission line of electricity to cause harmful effect, guaranteed transmission line of electricity safe operation, realized the online electrochemical measurement of transmission line of electricity hardware completely, practicality is good, embodiment simple and fast, can realize the object of Fast Measurement grid equipment hardware corrosion rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electrolytic cell of the vertical online electrochemical measurement described in the embodiment of the present invention 1.
Figure 2 shows that the structural representation of the electrolytic cell of horizontal online electrochemical measurement described in embodiment 2.
Figure 3 shows that the structural representation of geometrical clamp in described electrolytic cell assembly; Fig. 4 is the left view of Fig. 3; Fig. 5 is the vertical view of Fig. 3.
Below in conjunction with embodiment, the present invention is described further.
Embodiment
Embodiment 1:
Based on the online electrochemical measuring method of transmission line of electricity, the basis of described method is, a kind of novel electrolytic cell assembly is provided, it is with reference to accompanying drawing 1, include electrolytic cell and geometrical clamp etc., wherein, electrolytic cell includes the electrolyte container 1 of upward opening, workpiece connecting portion 2 and square spacer plate 3, electrolyte container 1 is a kind of square column structure, adopt four to there is certain thickness plate and surround and form, bottom face is fixedly connected with by viscose with square spacer plate 3, thereby form and take the square container that square spacer plate is the end, the area of square spacer plate 3 is now greater than the cross-sectional area of electrolyte container 1, its week is along the outstanding square ring boss 5 that forms.Workpiece connecting portion 2 is a kind of cylindrical component, it can be square cylindrical component, also can be column type member, open cylindrical through hole 4 along the axis of workpiece connecting portion, this cylindrical through hole 4 connects workpiece connecting portion 2 and square spacer plate 3 and is communicated in the inner chamber of electrolyte container 1; In the bottom surface of workpiece connecting portion 2, be processed with the groove of placing polytetrafluoroethylene gasket, the degree of depth of groove is less than the height of packing ring.Electrolyte container 1, workpiece connecting portion 2 and square spacer plate 3 all adopt transparent organic glass to make.
With reference to accompanying drawing 3,4,5, geometrical clamp includes connecting portion 8 and the screw rod 9 of folder face 6 and lower folder face 7 in folder 6, lower folder face 7, connection.Upper folder face 6 is a kind of U-shaped forked structure, A/F is consistent with the cross-sectional width of electrolyte container 1, lower folder face 7 is trapezoidal configuration, screw has been opened at its middle part, screw rod 9 is arranged in this screw, on top end face, be provided with circular gasket 10, be arranged in geometrical clamp, operating side is positioned at lower folder face 7 outsides.The upper folder face 6 of geometrical clamp is parallel with lower folder face 7, distance is therebetween greater than the square ring boss 5 of electrolyte container to the distance between workpiece connecting portion 2 bottom faces, two forks of upper folder face 6 are just in time stuck on electrolyte container 1, and on this, lower surface of folder face 6 presses on square ring boss 5, 7, lower folder face is positioned at workpiece connecting portion 2 belows, the circular gasket 10 of the top end face of screw rod contacts on the workpiece for measurement between workpiece connecting portion 2 and lower folder face 7, operating side by adjusting screw(rod) 9 makes to press on geometrical clamp 5 times top workpieces for measurement of square ring boss, electrolytic cell is fixed on hardware to be measured (workpiece) firmly.
Adopt above-mentioned electrolytic cell assembly to press on workpiece for measurement (hardware), and with geometrical clamp, electrolytic cell is firmly fixed on workpiece for measurement, the part that now workpiece for measurement is connected with the cylindrical through hole of workpiece connecting portion is exposed a circular metal surface in electrolytic cell, using this circular metal surface as working electrode;
In electrolytic cell, inject appropriate electrolytic solution, the metal surface of whole circle is all contacted completely with electrolytic solution.At the bottom of contrast electrode is put into and is stretched into electrolytic cell pond after salt bridge, and and bottom working electrode between at a distance of about 2mm, then auxiliary electrode is stretched into electrolytic tank middle part, with wire, each electrode is connected with electro-chemical test system, can carry out electro-chemical test work after completing above-mentioned steps.
It is same as the prior art that the present embodiment is not stated part.
Embodiment 2:
With reference to accompanying drawing 2, electrolyte container in described electrolytic cell assembly can also be: electrolyte container 1 is a kind of square column structure, adopting four slabs and square spacer plate to surround forms, now square spacer plate 3 is as the side panel of electrolyte container 1, all the other four slabs are respectively other three side panels and a base plate, workpiece connecting portion 2 is positioned at the lateral surface of square spacer plate 3, its axis is vertical with the axis of electrolyte container 1, the electrochemical measurement when tested surface that such structure is applicable to hardware is vertical plane, workpiece connecting portion is laterally perpendicular to surface of the work, its cylindrical through hole connects square spacer plate equally, be communicated in the inner chamber of electrolyte container.It is identical with embodiment 1 that the present embodiment is not stated part.
The present invention is according to electrochemical principle, and emphasis is studied, improved the electrolyser construction in traditional electrical test chemical system, can meet the requirement of the online Electrochemical Detection of electrical network hardware.In actual applications, this electrolytic cell adopts the organic glass with good chemical stability and machining property to make, and volume is 150mL.Take electrolytic cell shown in Fig. 1 as example, during test, electrolytic tank is pressed in to metal surface to be measured, and electrolytic cell and workpiece for measurement are clamped by the screw on adjusting geometrical clamp with the geometrical clamp of steel in Fig. 3.It is that the circular metal surface of 2.4cm directly contacts with the electrolytic solution in electrolytic cell as working electrode that diameter is exposed in electrolytic cell bottom, so just saves Metal Cutting to be measured, is prepared into the operations such as working electrode.For guaranteeing that electrolytic solution can not spill, and do not produce crevice corrosion during with Metal Contact to be measured, between electrolytic cell and workpiece, embed polytetrafluoroethylene gasket.At the bottom of contrast electrode is put into and is stretched into pond after salt bridge, guarantee and bottom working electrode between at a distance of 2mm left and right, then auxiliary electrode is stretched into electrolytic cell middle part, can carry out electro-chemical test work after completing above-mentioned steps.Substantially similar to Fig. 1 when electrolytic cell shown in Fig. 2 is used, different is that Fig. 2 device is for the electro-chemical test of tested surface hardware perpendicular to the ground.
Result when electrolytic cell of the present invention and traditional electrolytic cell carry out polarization curve test is relatively with reference to table 1.
Two kinds of parameter fitting results of table 1
? | B a/mV | B c/mV | I corr/mV | E corr/mV | v corr/mm.a -1 |
Tradition electrolytic cell | 12.101 | 195.52 | 2.14E-06 | -1.0016 | 0.025346 |
Novel electrolytic cell | 12.289 | 219.48 | 2.38E-06 | -0.99623 | 0.028225 |
It is hot-galvanized steel that this test adopts electrode material, and sweep speed is 10mV/min, and sweep limit is ± 70mV that the working electrode area of this new device is 4.5cm
2, the working electrode area of sampling preparation is 1cm
2.Table 1 can find out that the result that two kinds of different electrolytic cells record under same test condition is basically identical, and fitting result is also basically identical, illustrates that electrolytic cell of the present invention, on the not impact of the accuracy of test result, also meets the condition of galvanochemistry on-line testing simultaneously.
The vertical electrolytic cell shown in Fig. 1 of now take is example, and the step in one-shot measurement test is described:
1) while testing, the circular hole of electrolytic cell belt washer is pressed in to metal surface to be measured down, and electrolytic cell and workpiece for measurement is clamped by the screw rod on adjusting geometrical clamp with the geometrical clamp in Fig. 3;
2) to electrolytic cell, inject appropriate electrolytic solution, at this moment to expose diameter be that the circular metal surface of 2.4cm directly contacts with the electrolytic solution in electrolytic cell as working electrode in bottom;
3) at the bottom of contrast electrode put into being stretched into pond after salt bridge, guarantee and bottom working electrode between at a distance of 2mm left and right.Again auxiliary electrode is stretched into electrolytic cell middle part;
4) with wire, each electrode is connected with electro-chemical test system, can carries out electro-chemical test work after completing above-mentioned steps.
Substantially similar to vertical electrolytic cell when horizontal type electrobath shown in Fig. 2 is used, different is that horizontal type device is for the electro-chemical test of hardware vertical surface.During installation, the circular hole of electrolytic cell belt washer is pressed in the vertical surface of metal to be measured, the opening of electrolytic cell must, can be carried out test job by above-mentioned steps after laterally clamping with geometrical clamp upward simultaneously.
It is same as the prior art that the present invention does not state part.
Claims (7)
1. based on the online electrochemical measuring method of transmission line of electricity, its characteristic is, comprises the steps:
1) provide a kind of electrolytic cell assembly, it includes electrolytic cell and geometrical clamp etc., wherein, electrolytic cell includes electrolyte container, square spacer plate and the workpiece connecting portion of upward opening, square spacer plate is between electrolyte container and workpiece connecting portion, and be fixedly connected with workpiece connecting portion with electrolyte container respectively, the week of square spacer plate is along the outstanding square ring boss that forms; Workpiece connecting portion is a kind of cylindrical component, along the axis of workpiece connecting portion, has opened cylindrical through hole, and this cylindrical through hole connects workpiece connecting portion and square spacer plate and is communicated to the inner chamber of electrolyte container;
Geometrical clamp includes connecting portion and the screw rod of folder face and lower folder face in folder face, lower folder face, connection, and upper folder face is a kind of U-shaped forked structure, and A/F is consistent with the cross-sectional width of electrolyte container; Screw has been opened at the middle part of lower folder face, and screw rod is arranged in this screw, and top end face is arranged in geometrical clamp, and operating side is positioned at lower folder face outside; The upper folder face of geometrical clamp is parallel with lower folder face, and distance is therebetween greater than square ring boss to the distance between workpiece connecting portion bottom face;
2) electrolytic cell is seated on workpiece for measurement, now the bottom face of workpiece connecting portion pastes and touches on workpiece for measurement, the U-shaped fork of the upper folder face of geometrical clamp is just in time stuck on electrolyte container, and on this, lower surface of folder face presses on square ring boss, lower folder face is positioned at workpiece connecting portion below, the top end face of screw rod contacts on the workpiece for measurement between workpiece connecting portion and lower folder face, rotating screw bolt makes its top end face withstand workpiece for measurement, geometrical clamp square shaped annular boss press down and to the upper top of workpiece for measurement between electrolytic cell is fixed on workpiece for measurement; The part that now workpiece for measurement is connected with the cylindrical through hole of workpiece connecting portion is exposed a circular metal surface in electrolytic cell, using this circular metal surface as working electrode;
3) in electrolytic cell, inject appropriate electrolytic solution, until cylindrical through hole is filled with, the metal surface of whole circle is contacted completely with electrolytic solution;
4) at the bottom of contrast electrode put into being stretched into electrolytic cell pond after salt bridge, and and bottom working electrode between at a distance of 2mm left and right, then auxiliary electrode is stretched into electrolytic tank middle part;
5) with wire, each electrode is connected with electro-chemical test system, after completing, can carries out electro-chemical test work.
2. according to claim 1ly based on the online electrochemical measuring method of transmission line of electricity, it is characterized in that, described electrolyte container is a kind of annulus column structure, and bottom face is fixedly connected with by viscose with square spacer plate.
3. according to claim 1 based on the online electrochemical measuring method of transmission line of electricity, it is characterized in that, electrolyte container is a kind of square column structure, adopt four to there is certain thickness plate and surround and form, bottom face is fixedly connected with by viscose with square spacer plate, workpiece connecting portion is in square spacer plate below, the parallel or coincidence of the axis of its axis and electrolyte container.
4. according to claim 1 based on the online electrochemical measuring method of transmission line of electricity, it is characterized in that, electrolyte container is a kind of square column structure, adopting four slabs and square spacer plate to surround forms, now square spacer plate is as the side panel of electrolyte container, workpiece connecting portion is in the lateral surface of square spacer plate, and its axis is vertical with the axis of electrolyte container.
5. according to claim 1ly based on the online electrochemical measuring method of transmission line of electricity, it is characterized in that, also include polytetrafluoroethylene gasket, it is between workpiece connecting portion bottom face and workpiece for measurement.
6. according to claim 1ly based on the online electrochemical measuring method of transmission line of electricity, it is characterized in that the integrated structure of workpiece connecting portion, electrolyte container and square spacer plate.
7. according to claim 1ly based on the online electrochemical measuring method of transmission line of electricity, it is characterized in that, described electrolytic cell adopts transparent organic glass to make.
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CN110762207A (en) * | 2019-11-12 | 2020-02-07 | 国网重庆市电力公司电力科学研究院 | Sealing device for online electrochemical test of overhead ground wire and test method thereof |
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US20130264202A1 (en) * | 2012-04-04 | 2013-10-10 | Wisconsin Alumni Research Foundation | Solid Working Electrode With Replaceable Tip |
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CN201716287U (en) * | 2010-06-29 | 2011-01-19 | 上海大学 | Clamp for testing electrochemistry of sheet metal |
US20130264202A1 (en) * | 2012-04-04 | 2013-10-10 | Wisconsin Alumni Research Foundation | Solid Working Electrode With Replaceable Tip |
CN102798563A (en) * | 2012-09-04 | 2012-11-28 | 北京汽车股份有限公司 | Electrochemical sample clamp |
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