CN201429582Y - Reference electrode - Google Patents
Reference electrode Download PDFInfo
- Publication number
- CN201429582Y CN201429582Y CN2009201079034U CN200920107903U CN201429582Y CN 201429582 Y CN201429582 Y CN 201429582Y CN 2009201079034 U CN2009201079034 U CN 2009201079034U CN 200920107903 U CN200920107903 U CN 200920107903U CN 201429582 Y CN201429582 Y CN 201429582Y
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- electrode
- agcl
- hermetically sealed
- sealed case
- sealing jacket
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Abstract
The utility model discloses a reference electrode which comprises an Ag/Ag CI electrode, a conducting wire connected with the Ag/Ag CI electrode, and a sealing jacket, wherein, the sealing jacket formed by solidified high-strength resin covers the outer part of the Ag/Ag CI electrode and is used for protecting the Ag/Ag CI electrode; one end of the Ag/Ag CI electrode connected with the conductingwire is arranged at the inner part of the sealing jacket; and the cross section of the other end of the Ag/Ag CI electrode is exposed at the outer part of the sealing jacket. Through arranging one endof the Ag/Ag CI electrode connected with the conducting wire at the inner part of the sealing jacket, electric potential drift caused by the usage of a liquid-junction device is avoided, and the stability of the reference electrode is improved; and furthermore, the sealing jacket is formed by solidified high-strength resin, can bear the pressure in the depths of seawater, and is suitable for being used in a high pressure environment, thereby achieving long-term use in seawater.
Description
Technical field
The utility model relates to electrochemical techniques, particularly a kind of contrast electrode that is applicable to deep-marine-environment.
Background technology
Contrast electrode commonly used when carrying out electrochemical measurement at present in seawater mainly contains silver/silver halide electrode (as: Ag/AgCl, Ag/AgBr, Ag/AgI etc.), metal/metal oxide electrode (as: Hg/HgO, Ag/Ag
2O, Pt/PtO, Ir/IrO, Rh/Rh
2O
3, Zr/ZrO
2Deng), metal/metal sulfate electrode (as: Ag/Ag
2SO
4, Hg/Hg
2SO
4, Pt/PtSO
4Deng) and mercurous chloride electrode etc.Wherein the Ag/AgCl contrast electrode is because its reversibility, stability and favorable reproducibility, and temperature coefficient is little, broad application temperature range and being widely used.Existing Ag/AgCl contrast electrode is put with glass or plastic casing and is constituted by interior electrode, internal-filling liquid, liquid tipping usually, place the internal-filling liquid of glass or plastic casing to be used to keep the stability of interior electrode with interior electrode, interior electrode is put the micropore and the external world that are provided with by the liquid tipping and is carried out ion-exchange.
In the electrochemical measurement of deep-sea corrosion, because the pressure of seawater depths can reach tens atmospheric pressure even higher, traditional its shell of Ag/AgCl contrast electrode is generally glass or plastics, thereby frangible, yielding, is not suitable for using under elevated pressures; In addition since long term exposure in briny environment, the micropore that liquid tipping is put is easy to blocked and causes potential drifting serious, even cisco unity malfunction.
The utility model content
The purpose of this utility model provides a kind of contrast electrode, to solve the problem that traditional contrast electrode is frangible in the deep-sea, yielding and potential drifting is serious, carries out long-term, stable electrochemical measurement in the deep-sea to be implemented in.
For achieving the above object; the utility model provides a kind of contrast electrode; comprise: Ag/AgCl electrode and the lead that is connected with described Ag/AgCl electrode; also comprise: hermetically sealed case; described hermetically sealed case is formed by high-intensity resin curing; the outside that is coated on described Ag/AgCl electrode is used to protect described Ag/AgCl electrode; the end that described Ag/AgCl electrode is connected with described lead places described hermetically sealed case inside, and the xsect of the other end of described Ag/AgCl electrode is exposed to described hermetically sealed case outside.
The utility model is by providing a kind of contrast electrode, and the end that the Ag/AgCl electrode is connected with lead places hermetically sealed case inside, has avoided using the liquid tipping to put the potential drifting that causes, and has improved the stability of contrast electrode; And hermetically sealed case is formed by high-intensity resin curing, can bear the pressure of seawater depths, suits to use under high-pressure environment, has realized the long-term use in the deep-sea.
Description of drawings
Fig. 1 is the structural representation of the utility model contrast electrode first embodiment;
Fig. 2 is the structural representation of the utility model contrast electrode second embodiment;
Fig. 3 is the practical application synoptic diagram of the utility model contrast electrode.
Description of reference numerals:
The 1-Ag/AgCl electrode; The 2-lead; The 3-hermetically sealed case;
The 4-silver strip; The 5-measurement mechanism; The 6-contrast electrode;
The 7-working electrode.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model contrast electrode first embodiment.As shown in Figure 1, present embodiment provides a kind of contrast electrode, comprising: Ag/AgCl electrode 1, lead 2 and hermetically sealed case 3.Lead 2 is connected with Ag/AgCl electrode 1; hermetically sealed case 3 is formed by high-intensity resin curing; the outside that is coated on Ag/AgCl electrode 1 is used to protect Ag/AgCl electrode 1; the end that Ag/AgCl electrode 1 is connected with lead 2 places hermetically sealed case 3 inside; the other end of Ag/AgCl electrode 1 places hermetically sealed case 3 outsides, and and contact with sea water.
The utility model is by providing a kind of contrast electrode, and the end that the Ag/AgCl electrode is connected with lead places hermetically sealed case inside, has avoided using the liquid tipping to put the potential drifting that causes, and has improved the stability of contrast electrode; And hermetically sealed case is formed by high-intensity resin curing, can bear the pressure of seawater depths, suits to use under high-pressure environment, has realized the long-term use in the deep-sea.
Fig. 2 is the structural representation of the utility model contrast electrode second embodiment.As shown in Figure 2, on the basis of technique scheme, in the contrast electrode that present embodiment provides, Ag/AgCl electrode 1 can be connected by a silver strip 4 with lead 2, and this silver strip 4 places hermetically sealed case 3.
In the present embodiment, lead 2 is fixed on an end of Ag/AgCl electrode 1, to improve the stability of contrast electrode by silver strip 4.
On the basis of the foregoing description, Ag/AgCl electrode 1 can be formed by Ag powder and the compacting of AgCl powder high pressure.
The Ag/AgCl electrode normally generates the AgCl layer by chemistry or electrochemical method on Ag silk surface in the prior art, the Ag silk that this AgCl layer can decompose in time or run off and expose matrix, and cause current potential to drift about.The effect of internal-filling liquid is exactly the serviceable life that as far as possible prolongs the AgCl layer.In embodiment of the present utility model, the Ag/AgCl electrode is composited by Ag powder and AgCl powder, can avoid the exposed potential drifting that causes of matrix, therefore need not add internal-filling liquid.
The utility model is by providing a kind of contrast electrode, and the end that the Ag/AgCl electrode is connected with lead places hermetically sealed case inside, has avoided using the liquid tipping to put the potential drifting that causes, and has improved the stability of contrast electrode; Hermetically sealed case is formed by high-intensity resin curing, can bear the pressure of seawater depths, suits to use under high-pressure environment; And the Ag/AgCl electrode adopts Ag powder and the compacting of AgCl powder high pressure to form, and has strengthened the stability of contrast electrode, need not add internal-filling liquid, can realize the long-term use in the deep-sea.
In actual applications, by measuring contrast electrode and the voltage difference of working electrode in seawater, come the chemical property of judgment task electrode in seawater.Fig. 3 is the practical application synoptic diagram of the utility model contrast electrode.As shown in Figure 3, one end of measurement mechanism 5 connects contrast electrode 6, particularly, one end of measurement mechanism 5 connects the lead of contrast electrode 6, the other end connects working electrode 7, the other end of contrast electrode 6 and contact with sea water form closed-loop paths (dotted line among the figure represents that contrast electrode 6 and working electrode 7 are connected by seawater) by seawater and working electrode 7.Like this, measurement mechanism 5 just can be measured the voltage difference between contrast electrode 6 and the working electrode 7, with the chemical property of judgment task electrode 7 in seawater.In the present embodiment, contrast electrode 6 can be any one contrast electrode in the foregoing description.
The utility model is by providing a kind of contrast electrode, and the end that the Ag/AgCl electrode is connected with lead places hermetically sealed case inside, has avoided using the liquid tipping to put the potential drifting that causes, and has improved the stability of contrast electrode; Hermetically sealed case is formed by high-intensity resin curing, can bear the pressure of seawater depths, suit under high-pressure environment, to use, and, the Ag/AgCl electrode adopts Ag powder and the compacting of AgCl powder high pressure to form, strengthen the stability of contrast electrode, need not add internal-filling liquid, can realize the long-term use in the deep-sea.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (2)
1, a kind of contrast electrode; comprise: Ag/AgCl electrode and the lead that is connected with described Ag/AgCl electrode; it is characterized in that; also comprise: hermetically sealed case; described hermetically sealed case is formed by high-intensity resin curing; the outside that is coated on described Ag/AgCl electrode is used to protect described Ag/AgCl electrode, and the end that described Ag/AgCl electrode is connected with described lead places described hermetically sealed case inside, and the transversal section of the other end of described Ag/AgCl electrode is exposed to described hermetically sealed case outside.
2, contrast electrode according to claim 1 is characterized in that, described Ag/AgCl electrode is connected by a silver strip with described lead, and described silver strip places described hermetically sealed case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201079034U CN201429582Y (en) | 2009-05-04 | 2009-05-04 | Reference electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201079034U CN201429582Y (en) | 2009-05-04 | 2009-05-04 | Reference electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429582Y true CN201429582Y (en) | 2010-03-24 |
Family
ID=42033321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201079034U Expired - Fee Related CN201429582Y (en) | 2009-05-04 | 2009-05-04 | Reference electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201429582Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608661A (en) * | 2012-03-06 | 2012-07-25 | 中国地质大学（北京） | Electrode device for measuring seabed weak electric field signal and manufacture method of electrode device |
| CN102944594A (en) * | 2012-06-04 | 2013-02-27 | 哈尔滨工程大学 | Long-life reference electrode suitable for deep-sea high-hydrostatic pressure environment |
| CN102967639A (en) * | 2012-07-11 | 2013-03-13 | 哈尔滨工程大学 | Long-life reference electrode suitable for deep-sea high hydrostatic pressure environment |
| CN111257389A (en) * | 2020-03-16 | 2020-06-09 | 昆明理工大学 | High-voltage reference electrode, preparation method and application |
-
2009
- 2009-05-04 CN CN2009201079034U patent/CN201429582Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608661A (en) * | 2012-03-06 | 2012-07-25 | 中国地质大学（北京） | Electrode device for measuring seabed weak electric field signal and manufacture method of electrode device |
| CN102608661B (en) * | 2012-03-06 | 2013-03-20 | 中国地质大学（北京） | Electrode device for measuring seabed weak electric field signal and manufacture method of electrode device |
| CN102944594A (en) * | 2012-06-04 | 2013-02-27 | 哈尔滨工程大学 | Long-life reference electrode suitable for deep-sea high-hydrostatic pressure environment |
| CN102944594B (en) * | 2012-06-04 | 2015-10-28 | 哈尔滨工程大学 | Be applicable to the long service life reference electrode under deep-sea high hydrostatic pressure environment |
| CN102967639A (en) * | 2012-07-11 | 2013-03-13 | 哈尔滨工程大学 | Long-life reference electrode suitable for deep-sea high hydrostatic pressure environment |
| CN111257389A (en) * | 2020-03-16 | 2020-06-09 | 昆明理工大学 | High-voltage reference electrode, preparation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20180504 |