CN203203960U - Electrode used for measuring dissolved oxygen - Google Patents
Electrode used for measuring dissolved oxygen Download PDFInfo
- Publication number
- CN203203960U CN203203960U CN 201320228458 CN201320228458U CN203203960U CN 203203960 U CN203203960 U CN 203203960U CN 201320228458 CN201320228458 CN 201320228458 CN 201320228458 U CN201320228458 U CN 201320228458U CN 203203960 U CN203203960 U CN 203203960U
- Authority
- CN
- China
- Prior art keywords
- electrode
- cylinder
- permeation membrane
- oxygen
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an electrode used for measuring dissolved oxygen. The electrode used for measuring the dissolved oxygen comprises a hollow shell body, wherein an electrode base is installed on the upper end face of the shell body in a sealing mode, the lower end face of the shell body is coated with an oxygen permeation membrane, a cylinder electrode body is arranged between the electrode base and the oxygen permeation membrane, a gold electrode serving as the cathode is arranged in the center of the working end face, in contact with the oxygen permeation membrane, inside the cylinder electrode body, an annular silver electrode serving as the anode and an annular reference electrode are arranged on the lateral side of the cylinder electrode body in sequence, the gold electrode, the silver electrode and the reference electrode are connected with a circuit board located inside the electrode base through a first guide wire, a second guide wire and a third guide wire respectively, and an electrolysis cavity is formed between the shell body and the cylinder electrode body and is located between the electrode base and the oxygen permeation membrane. The electrode used for measuring the dissolved oxygen has the advantages that oxygen in electrolyte can be consumed by the electrodes conveniently, the response speed is high, the service life is long, the phenomenon of deviation of a measurement result caused by changing of electrode potential is avoided, and the measurement result is high in stability and repeatability.
Description
Technical field
The utility model relates to the surveying instrument technical field, is specifically related to a kind of electrode for measuring dissolved oxygen DO.
Background technology
Dissolved oxygen DO refer to be dissolved in the water or liquid phase in the oxygen of molecular state, be hydrobiont and hydrophyte existence conditio sune qua non.Dissolved oxygen concentration to be determined at the fields such as industry, medicine, environmental monitoring, aquaculture significant, it is one of important indicator of water pollution degree.Modern industry, environmental monitoring more and more need on-the-spot on-line monitoring.And existing dissolved oxygen electrode exist accuracy of detection low, measurement result stability and poor reproducibility.
Summary of the invention
The utility model purpose provides a kind of electrode for measuring dissolved oxygen DO, this is used for measuring the electrode of dissolved oxygen DO, be conducive to oxygen in the consumption of electrode electrolytic solution, and fast response time, life-span is long, the phenomenon of having avoided electrode potential to change and having caused measurement result to be offset, measurement result has very high stability and reappearance.
For achieving the above object, the technical solution adopted in the utility model is: a kind of dissolved oxygen sensor, the housing that comprises hollow, this housing upper surface is sealed and installed with an electrode base, this housing lower surface is coated with an oxygen permeation membrane, be provided with the cylinder electrode body between described electrode base and the oxygen permeation membrane, the operative end surface center that contacts with oxygen permeation membrane in this cylinder electrode body has a gold electrode as negative electrode, described cylinder electrode body side surface is provided with silver electrode and the contrast electrode as anode of annular, described gold electrode successively, silver electrode and contrast electrode are respectively by the first wire, the second wire and privates be positioned at the electrode base interior circuit board and be connected; Form an electrolyte chamber between described housing and the cylinder electrode body and between electrode base and oxygen permeation membrane.
Further improvement project is as follows in the technique scheme:
1, in the such scheme, described operative end surface is the spirogyrate cambered surface.
2, in the such scheme, the gold electrode of described negative electrode is shaped as cylinder.
3, in the such scheme, described contrast electrode is between described anode and negative electrode.
4, in the such scheme, described contrast electrode is silver-silver chloride reference electrode.
5, in the such scheme, be connected by internal thread, external thread rotation between described housing and the electrode base.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
The utility model is used for measuring the electrode of dissolved oxygen DO, it consists of three-electrode system by negative electrode gold electrode, contrast electrode, the anode silver electrode as working electrode, oxygen permeation membrane isolation electrolytic solution and test solution, when a constant voltage is provided between anode silver electrode and the contrast electrode, and the electric current of flowing through between working electrode and the anode silver electrode is with measured, be conducive to oxygen in the consumption of electrode electrolytic solution, and fast response time, life-span is long, the phenomenon of having avoided electrode potential to change and having caused measurement result to be offset, measurement result has very high stability and reappearance; Secondly, dissolved oxygen sensor has overcome contrast electrode, anode and cathode voltage fluctuation, causes the measurement result fluctuation, has further improved accuracy of detection.
Description of drawings
In the above accompanying drawing: 1, housing; 2, electrode base; 3, oxygen permeation membrane; 4, cylinder electrode body; 5, gold electrode; 6, silver electrode; 7, contrast electrode; 8, circuit board; 9, electrolyte chamber; 10, operative end surface; 11, the first wire; 12, the second wire; 13, privates.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: a kind of electrode for measuring dissolved oxygen DO, the housing 1 that comprises hollow, this housing 1 upper surface is sealed and installed with an electrode base 2, this housing 1 lower surface is coated with an oxygen permeation membrane 3, be provided with cylinder electrode body 4 between described electrode base 2 and the oxygen permeation membrane 3, operative end surface 10 centers that contact with oxygen permeation membrane 3 in this cylinder electrode body 4 have a gold electrode 5 as negative electrode, described cylinder electrode body 4 sides are provided with silver electrode 6 and the contrast electrode 7 as anode of annular, described gold electrode 5 successively, silver electrode 6 and contrast electrode 7 are respectively by the first wire 11, the second wire 12 is connected with privates and is positioned at electrode base 2 interior circuit boards 8 and is connected; Form an electrolyte chamber 9 between described housing 1 and the cylinder electrode body 4 and between electrode base 2 and oxygen permeation membrane 3.
Above-mentioned operative end surface 10 is the spirogyrate cambered surface.
The gold electrode 5 of above-mentioned negative electrode is shaped as cylinder.
Above-mentioned contrast electrode 7 is between described anode and negative electrode.
Above-mentioned contrast electrode 7 is silver-silver chloride reference electrode.
Be connected by internal thread, external thread rotation between above-mentioned housing 1 and the electrode base 2.
Adopt above-mentioned when measuring the electrode of dissolved oxygen DO, it consists of three-electrode system by negative electrode gold electrode, contrast electrode, the anode silver electrode as working electrode, oxygen permeation membrane isolation electrolytic solution and test solution, when a constant voltage is provided between anode silver electrode and the contrast electrode, and the electric current of flowing through between working electrode and the anode silver electrode is with measured, be conducive to oxygen in the consumption of electrode electrolytic solution, and fast response time, life-span is long, the phenomenon of having avoided electrode potential to change and having caused measurement result to be offset, measurement result has very high stability and reappearance; Secondly, dissolved oxygen sensor has overcome contrast electrode, anode and cathode voltage fluctuation, causes the measurement result fluctuation, has further improved accuracy of detection.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (6)
1. electrode of be used for measuring dissolved oxygen DO, it is characterized in that: the housing (1) that comprises hollow, this housing (1) upper surface is sealed and installed with an electrode base (2), this housing (1) lower surface is coated with an oxygen permeation membrane (3), be provided with cylinder electrode body (4) between described electrode base (2) and the oxygen permeation membrane (3), operative end surface (10) center that contacts with oxygen permeation membrane (3) in this cylinder electrode body (4) has a gold electrode as negative electrode (5), described cylinder electrode body (4) side is provided with the silver electrode as anode (6) and the contrast electrode (7) of annular, described gold electrode (5) successively, silver electrode (6) and contrast electrode (7) are respectively by the first wire (11), the second wire (12) is connected 13 with privates) be positioned at electrode base (2) interior circuit board (8) and be connected; Between described housing (1) and the cylinder electrode body (4) and be positioned between electrode base (2) and the oxygen permeation membrane (3) and form an electrolyte chamber (9).
2. electrode according to claim 1, it is characterized in that: described operative end surface (10) is the spirogyrate cambered surface.
3. electrode according to claim 1, it is characterized in that: the gold electrode of described negative electrode (5) is shaped as cylinder.
4. electrode according to claim 1, it is characterized in that: described contrast electrode (7) is between described anode and negative electrode.
5. electrode according to claim 1, it is characterized in that: described contrast electrode (7) is silver-silver chloride reference electrode.
6. electrode according to claim 1 is characterized in that: be connected by internal thread, external thread rotation between described housing (1) and the electrode base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228458 CN203203960U (en) | 2013-04-28 | 2013-04-28 | Electrode used for measuring dissolved oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228458 CN203203960U (en) | 2013-04-28 | 2013-04-28 | Electrode used for measuring dissolved oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203960U true CN203203960U (en) | 2013-09-18 |
Family
ID=49148057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320228458 Expired - Fee Related CN203203960U (en) | 2013-04-28 | 2013-04-28 | Electrode used for measuring dissolved oxygen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203203960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634837A (en) * | 2015-02-03 | 2015-05-20 | 北京华科仪科技股份有限公司 | Electrochemical sensor and manufacturing method thereof |
-
2013
- 2013-04-28 CN CN 201320228458 patent/CN203203960U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634837A (en) * | 2015-02-03 | 2015-05-20 | 北京华科仪科技股份有限公司 | Electrochemical sensor and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1821763A (en) | Method for measuring solution conductivity | |
| CN109001275B (en) | Three-electrode electrochemical dissolved oxygen sensor | |
| EP0974834A3 (en) | Gas sensor with solid and liquid electrolytes connected in series between first and second electrodes | |
| CN203203960U (en) | Electrode used for measuring dissolved oxygen | |
| CN104965013A (en) | Self-compensation and pollution-resistant reference electrode | |
| CN103353474B (en) | Dissolved oxygen sensor | |
| CN204556594U (en) | Micro-moisture transmitter | |
| CN101839712A (en) | Electronic leveling instrument | |
| CN203965301U (en) | A kind of electrochemical test probe | |
| CN208188034U (en) | A kind of electrochemical sensor being conveniently replaceable response element | |
| CN104614419A (en) | High precision dissolved oxygen detector | |
| CN104698045A (en) | Dissolved oxygen (DO) electrochemical sensor | |
| CN203606314U (en) | Ion electrode structure | |
| CN202492579U (en) | Regenerative control device for acidic cupric chloride etchant | |
| CN203376285U (en) | Electrochemistry gas sensor | |
| CN103616057A (en) | Method and device for measuring level of water in non-metal container or pipeline | |
| CN202956358U (en) | Potential of hydrogen (PH) detector | |
| CN103018295A (en) | Constant-potential solid pH detector | |
| CN2650125Y (en) | Measuring electrode for liquid conductivity | |
| Wang et al. | How to Choose Suitable Reference Electrode and Aqueous Electrolyte to Avoid Error in Electrochemical Measurements? | |
| CN1963489A (en) | Apparatus for testing consistency of ozone water | |
| CN205175509U (en) | Indirect formula liquid level measurement device | |
| CN201477068U (en) | Salt electrolysis cell | |
| CN215866375U (en) | Control circuit of copper ion concentration detector | |
| CN202770804U (en) | Multi-parameter sensor for measuring pH (potential of hydrogen) value, conductivity and temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANHE AUTOMATION TECHNOLOGY (SUZHOU) CO., LTD. Free format text: FORMER NAME: SUZHOU TIANHE AUTOMATION SYSTEM CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Xinghu Street Industrial Park of Suzhou city in Jiangsu province 215000 No. 328 Creative Industry Park 6-403 room Patentee after: TIANHE AUTOMATION TECHNOLOGY (SUZHOU) CO., LTD. Patentee after: Zhong Xudong Address before: Xinghu Street Industrial Park of Suzhou city in Jiangsu province 215000 No. 328 Creative Industry Park 6-403 room Patentee before: Suzhou Tianhe Automation System Co.,Ltd. Patentee before: Zhong Xudong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20180428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |