CN203606314U - Ion electrode structure - Google Patents
Ion electrode structure Download PDFInfo
- Publication number
- CN203606314U CN203606314U CN201320624282.3U CN201320624282U CN203606314U CN 203606314 U CN203606314 U CN 203606314U CN 201320624282 U CN201320624282 U CN 201320624282U CN 203606314 U CN203606314 U CN 203606314U
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- Prior art keywords
- electrode
- ion
- film seat
- tube
- utility
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- 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 - Lifetime
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- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 39
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- GTKRFUAGOKINCA-UHFFFAOYSA-M chlorosilver;silver Chemical group [Ag].[Ag]Cl GTKRFUAGOKINCA-UHFFFAOYSA-M 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000220450 Cajanus cajan Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003918 potentiometric titration Methods 0.000 description 1
- 238000004313 potentiometry Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Abstract
The utility model discloses an ion electrode structure which comprises an electrode pole, an electrode tube, a measurement head, a reference electrode and a temperature sensor, wherein the electrode tube is arranged in the electrode pole in a penetrating manner; the measurement head is detachably arranged at the extending end, which extends out of the electrode pole, of the electrode tube in a sealed manner; the reference electrode is arranged in a reference electrode cavity between the electrode pole and the electrode tube; the reference electrode cavity is filled with high-concentration electrolyte; the temperature sensor is arranged in the electrode rod in a penetrating manner; the measurement end extends out of the electrode pole. The ion electrode structure which is provided by the utility model is simple in structure and convenient to use; the detachable measurement head enables a user to mount and replace a sensitive film by the own; a triple-composite electrode is extremely convenient to use and maintain; meanwhile, the high-concentration electrolyte in the reference electrode cavity is used as a shielding layer, so that the stability and the accuracy for measurement are greatly improved.
Description
Technical field
The utility model relates to a kind of electric chemical formula sensitive element, particularly a kind of ion electrode structure.
Background technology
Ion-selective electrode claims again ion electrode, and a class utilizes film potential to measure the electrochemical sensor of effects of ion activity or concentration; Within 1906, by silent research the earliest in R. gram, the glass electrode of the measurement solution PH of being made up of people such as German Habers (F.Harber) is subsequently the first ion-selective electrode, and to the end of the sixties, the commodity of ion-selective electrode have kind more than 20; Ion-selective electrode has the ability that the activity of certain specific ion in solution is changed into certain potentials, and in its current potential and solution, the logarithm of given ion activity is linear; Ion-selective electrode is membrane electrode, and its core component is the sense film of eletrode tip; Can be divided into solid film electrode, liquid membrane electrode and septum electrode by structure; Ion selective electrode method is the branch of potentiometric analysis, is generally used for direct potentiometric method, also can be used for potentiometric titration.
Because ion electrode impedance is high, be easily subject to external interference; Although existing ion electrode electrode cable has adopted shielding line, itself does not have screen layer electrode, is easy to be subject to outside electromagnetic interference, causes reading beat or drift about, and affects measurement accuracy and reappearance.
The sensitive membrane of traditional ion-selective electrode directly sticks on electrode stem with adhesive, very inconvenient when making, and adhesive also can stain sensitive membrane, and electrode performance is declined.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple in structure, easy to use, jamproof a kind of ion electrode structure.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of ion electrode structure; Described ion electrode structure comprises:
One electrode stem;
One electrode tube, described electrode tube is located in electrode stem;
One measuring head, the dismountable sealing of described measuring head is arranged on the external part that electrode tube stretches out from electrode stem;
One contrast electrode, described contrast electrode is arranged in the contrast electrode chamber between electrode stem and electrode tube, and in contrast electrode chamber, is full of the electrolyte of high concentration;
One temperature sensor, described temperature sensor is located in electrode stem, and measuring junction stretches out from electrode stem.
In an embodiment of the present utility model, described measuring head is made up of film seat, membrane cover and sensitive membrane, and the cross section of described film seat is inverse-T-shaped, and described film seat comprises small end and large end; The small end of described film seat is link, coordinates with electrode tube, and the root of link is provided with O-ring seal; Described sensitive membrane is placed on the large end of membrane cover, and described membrane cover is set on the large end of film seat, sensitive membrane is pressed on the large end of film seat.
In an embodiment of the present utility model, described contrast electrode is silver-silver chloride reference electrode.
In an embodiment of the present utility model, between measured head and the external part of electrode tube for being threaded.
In an embodiment of the present utility model, between described membrane cover and film seat, be connected by adhesive.
In an embodiment of the present utility model, the bottom of the large end of described film seat is provided with sensitive membrane resettlement groove, and described sensitive membrane is arranged in this resettlement groove.
By technique scheme, the beneficial effects of the utility model are:
1. the utility model measuring head and electrode tube are the mode of removably connecting, and sensitive membrane is set directly on film seat, do not adopt adhesive to fix, and it is convenient to dismounting and preserves and change.
2. the electrolyte that is full of high concentration in the utility model contrast electrode, it not only has very strong electric conductivity, and can be used as the screen layer of ion electrode, and it has improved stability and accuracy while measurement greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model measuring head structural representation.
Numeral and the represented corresponding component title of letter in figure:
10, electrode stem 20, electrode tube 21, external part 30, measuring head 31, the large end 32 of film seat 31a, small end 31b, membrane cover 33, sensitive membrane 40, temperature sensor 41, measuring junction 50, contrast electrode 51, contrast electrode chamber 60, O-ring seal.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in Fig. 1 and Fig. 2, the utility model discloses a kind of ion electrode structure, the measuring head 30 that comprises electrode stem 10, is located in the electrode tube 20 in electrode stem 10 and removably connects with electrode tube.
The utility model ion electrode structure also comprises temperature sensor 40 and contrast electrode 50, and temperature sensor 40 comprises measuring junction 41, and temperature sensor 40 is located in electrode stem 10, and measuring junction 41 stretches out from electrode stem 10; Contrast electrode 50 is arranged in the contrast electrode chamber 51 between electrode stem 10 and electrode tube 20; Contrast electrode chamber 51 contains high concentration electrolysis matter, contrast electrode 50 is silver-silver chloride reference electrode, ion electrode structure in use, utilize the electric conductivity of the strong electrolytic solution in contrast electrode chamber, silver-silver chloride reference electrode is connected to the contrast electrode end of instrument, strong electrolytic solution in contrast electrode chamber is simultaneously as the screen layer of ion electrode, and it can block outside electromagnetic interference, has greatly improved stability and the accuracy measured.
Shown in Figure 2, measuring head 30 is made up of film seat 31, membrane cover 32 and sensitive membrane 33; The cross section of film seat 31 is inverse-T-shaped, and film seat 31 comprises small end 31a and large end 31b, and the small end 31a of film seat is link, coordinates with electrode tube; Sensitive membrane 33 is placed on the large end 31b of membrane cover, and membrane cover 32 is set on the large end 31b of film seat, sensitive membrane 33 is pressed on the large end of film seat; The external part 21 of the link of film seat 31 and electrode tube 20 removably connects, and the utility model that removably connects is herein preferably and is threaded, and it can also adopt other known mode that removably connects according to actual needs, does not add and repeats herein; In order to prevent electrolyte leakage, the utility model is provided with packoff at the connection of thread of film seat link and electrode tube external part, and sealing device is O-ring seal 60 or sealing gasket, and the utility model is preferably O-ring seal; The bottom of the large end of film seat is provided with sensitive membrane resettlement groove (not marking in figure), and this sensitive membrane 33 when mounted, is arranged in this resettlement groove, and the thickness of resettlement groove and the thickness of sensitive membrane are basic identical; Finally membrane cover is arranged on the large end of film seat sensitive membrane is fixed, between membrane cover and the large end of film seat, be connected by adhesive, adhesive does not contact with sensitive membrane; Sensitive membrane is owing to being arranged in removable measuring head, and directly do not contact in adhesive, and it can be dismantled easily and preserve and change.
The utility model ion electrode structure is three combination electrodes of measuring ion electrode, contrast electrode and temperature measurement electrode, and its operation and maintenance is extremely convenient.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. an ion electrode structure; It is characterized in that: described ion electrode structure comprises:
One electrode stem;
One electrode tube, described electrode tube is located in electrode stem;
One measuring head, the dismountable sealing of described measuring head is arranged on the external part that electrode tube stretches out from electrode stem;
One contrast electrode, described contrast electrode is arranged in the contrast electrode chamber between electrode stem and electrode tube, and in contrast electrode chamber, is full of the electrolyte of high concentration;
One temperature sensor, described temperature sensor is located in electrode stem, and measuring junction stretches out from electrode stem.
2. a kind of ion electrode structure according to claim 1, is characterized in that: described measuring head is made up of film seat, membrane cover and sensitive membrane, and the cross section of described film seat is inverse-T-shaped, and described film seat comprises small end and large end; The small end of described film seat is link, coordinates with electrode tube, and the root of link is provided with O-ring seal; Described sensitive membrane is placed on the large end of membrane cover, and described membrane cover is set on the large end of film seat, sensitive membrane is pressed on the large end of film seat.
3. a kind of ion electrode structure according to claim 1, is characterized in that: described contrast electrode is silver-silver chloride reference electrode.
4. a kind of ion electrode structure according to claim 1, is characterized in that: between measured head and the external part of electrode tube for being threaded.
5. a kind of ion electrode structure according to claim 2, is characterized in that: between described membrane cover and film seat, be connected by adhesive.
6. a kind of ion electrode structure according to claim 2, is characterized in that: the bottom of the large end of described film seat is provided with sensitive membrane resettlement groove, and described sensitive membrane is arranged in this resettlement groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624282.3U CN203606314U (en) | 2013-10-10 | 2013-10-10 | Ion electrode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624282.3U CN203606314U (en) | 2013-10-10 | 2013-10-10 | Ion electrode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606314U true CN203606314U (en) | 2014-05-21 |
Family
ID=50718980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320624282.3U Expired - Lifetime CN203606314U (en) | 2013-10-10 | 2013-10-10 | Ion electrode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548312A (en) * | 2015-12-29 | 2016-05-04 | 深圳市麦迪聪医疗电子有限公司 | Electrode capable of being repeatedly used |
| CN107505377A (en) * | 2016-06-14 | 2017-12-22 | 恩德莱斯和豪瑟尔分析仪表两合公司 | Electrochemical sensor with replaceable electrode assemblie |
-
2013
- 2013-10-10 CN CN201320624282.3U patent/CN203606314U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548312A (en) * | 2015-12-29 | 2016-05-04 | 深圳市麦迪聪医疗电子有限公司 | Electrode capable of being repeatedly used |
| CN107505377A (en) * | 2016-06-14 | 2017-12-22 | 恩德莱斯和豪瑟尔分析仪表两合公司 | Electrochemical sensor with replaceable electrode assemblie |
| US11105768B2 (en) | 2016-06-14 | 2021-08-31 | Endress+Hauser Conducta Gmbh+Co. Kg | Electrochemical sensor with exchangeable electrode assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |