CN1160205A - Compoundable solid acid and alkali sensor - Google Patents
Compoundable solid acid and alkali sensor Download PDFInfo
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- CN1160205A CN1160205A CN 96117097 CN96117097A CN1160205A CN 1160205 A CN1160205 A CN 1160205A CN 96117097 CN96117097 CN 96117097 CN 96117097 A CN96117097 A CN 96117097A CN 1160205 A CN1160205 A CN 1160205A
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Abstract
A compoundable acid-base solid sensor for measuring pH value is composed of reference electrode and indication electrode. Said indication electrode is made of metals such as tungsten, antimony, titanium or molybdenum, or alloy such as Pt-Ir alloy, Pt-W alloy, Pt-Sb alloy, Pt-Ti alloy or Pt-Mo alloy, and has surficial protective film. Its advantages are stable properties, high impact resistance, long service life and low internal resistance.
Description
The present invention relates to a kind of sensing element that detects potential of hydrogen, especially a kind of Compoundable solid acid and alkali sensor.
Along with science and technology development, many fields such as industry, agricultural, environment, food, scientific research all need the online detection of pH value.Because glass electrode is frangible, so continue to use traditional pH value glass indicator electrode again certain difficulty is just arranged.When measuring the pH value, the commodity contrast electrode of use is many to be interior reference liquid with different concentrations of sodium chloride solution, and connects through porous sintered ceramic and liquid phase to be measured.When at measured soil and various emulsion, might stop up porous ceramics when mud or cloudy suspensions and adsorb the hole inwall, make measurement result complicated.The compound pH glass of Xiao Shouing refers to that electrode costs an arm and a leg in the market, and volume is big, and shock resistance is relatively poor.Because interior reference liquid is volatile, so this kind sensor also need add liquid.Also need when not using it is soaked foam in special liquid, so, make troubles for use, collection and maintenance.
The object of the present invention is to provide a kind of Compoundable solid acid and alkali sensor of maintenance easy to use.
The present invention adopts following technical scheme to realize its goal of the invention:
The present invention is made up of contrast electrode 1 and indicator electrode 2, and index electrode 2 is a metal electrode, is provided with diaphragm at the outside surface of metal electrode.These parameters electrode 2 can also be an alloy electrode, is provided with diaphragm at the outside surface of alloy electrode.The present invention can be located at contrast electrode 1 and index electrode 2 in the insulation sleeve 3, so that it is combined with each other as required.
Compared with prior art, the present invention has advantage like this:
1. because the variation of indicator electrode has promptly replaced existing glass electrode with metal electrode or alloy electrode, make stable performance of the present invention, anti-impact force is strong, need not during use and maintenance in particular fluid, to soak, thereby brought to use and maintenance convenient.And diaphragm plays insulation and protective effect to metal electrode, helps improving serviceable life, in addition, because the internal resistance of indicator electrode of the present invention is little, because of it helps simplifying the soda acid surveying instrument.
2. the present invention also contrast electrode be set to solid electrode, make it produce advantage easy to carry, that be difficult for oxidation, particularly in solid 12, add silver ion after, make its advantage with long service life, help to improve measuring speed.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a cut-open view of the present invention.
Fig. 3 is a contrast electrode structural representation of the present invention.
With reference to the accompanying drawings, embodiment of the present invention being done one describes in detail:
The present invention is made up of contrast electrode 1 and indicator electrode 2; index electrode 2 is a metal electrode; outside surface at metal electrode is provided with diaphragm; this metal electrode preferably adopts the metal electrode to the hydrogen ion sensitivity; for example; it can be that metal electrode can be tungsten, antimony, titanium or molybdenum electrode, and diaphragm can adopt this kind metal institute oxide film.These parameters electrode 2 can also be an alloy electrode; outside surface at alloy electrode is provided with diaphragm; this alloy electrode is the alloy electrode to the hydrogen ion sensitivity such as platinumiridio, platinum-tungsten alloys, platinum antimony alloy, platinum titanium alloy or platinum molybdenum alloy, and diaphragm can adopt the oxide film of this kind alloy.In the present embodiment, contrast electrode 1 is a filamentary silver 11, and filamentary silver is located in the solid 12, is provided with conducting film 13 in the end of filamentary silver 11 and solid 12, and this conducting film 13 and filamentary silver 11 are conducted.Solid 11 is for containing the solid electrolyte of chlorion and silver ion.The present invention also can combine indicator electrode and contrast electrode, forms the solid compound sensor, is about to contrast electrode 1 and index electrode 2 and is located in the insulation sleeve 3, is fixed by insulating material.
Claims (9)
1. a Compoundable solid acid and alkali sensor that is used to detect Acidity of Aikalinity is made up of contrast electrode (1) and indicator electrode (2), it is characterized in that index electrode (2) is a metal electrode, is provided with diaphragm at the outside surface of metal electrode.
2. Compoundable solid acid and alkali sensor according to claim 1 is characterized in that index electrode (2) can also be an alloy electrode, is provided with diaphragm at the outside surface of alloy electrode.
3. Compoundable solid acid and alkali sensor according to claim 2 is characterized in that alloy electrode is platinumiridio, platinum-tungsten alloys, platinum antimony alloy, platinum titanium alloy or platinum molybdenum alloy electrode.
4. Compoundable solid acid and alkali sensor according to claim 1 is characterized in that metal electrode can be tungsten, antimony, titanium or molybdenum electrode.
5. Compoundable solid acid and alkali sensor according to claim 1 and 2, it is characterized in that contrast electrode (1) is a filamentary silver (11), filamentary silver is located in the solid (12), is provided with conducting film (13) in the end of filamentary silver (11) and solid (12), and this conducting film (13) and filamentary silver (11) are conducted.
6. Compoundable solid acid and alkali sensor according to claim 5 is characterized in that solid (11) is for containing the solid electrolyte of chlorion and silver ion.
7. Compoundable solid acid and alkali sensor according to claim 1 and 2 is characterized in that contrast electrode (1) and index electrode (2) are located in the insulation sleeve (3).
8. Compoundable solid acid and alkali sensor according to claim 1 is characterized in that diaphragm can adopt this kind metal institute oxide film.
9. Compoundable solid acid and alkali sensor according to claim 1 is characterized in that diaphragm can adopt the oxide film of this kind alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96117097 CN1160205A (en) | 1996-09-19 | 1996-09-19 | Compoundable solid acid and alkali sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96117097 CN1160205A (en) | 1996-09-19 | 1996-09-19 | Compoundable solid acid and alkali sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1160205A true CN1160205A (en) | 1997-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96117097 Pending CN1160205A (en) | 1996-09-19 | 1996-09-19 | Compoundable solid acid and alkali sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1160205A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371718C (en) * | 2003-07-10 | 2008-02-27 | 友达光电股份有限公司 | Condenser type acceleration sensor |
| CN102469950A (en) * | 2009-07-02 | 2012-05-23 | 唯听助听器公司 | An ear plug with surface electrodes |
| RU2488107C2 (en) * | 2009-05-13 | 2013-07-20 | Общество с ограниченной ответственностью "Научно-производственное предприятие ОКБА" | Coulometric electrolytic cell |
| CN103822950A (en) * | 2014-03-11 | 2014-05-28 | 苏州热工研究院有限公司 | Embedded type composite reference electrode for corrosion monitoring/detecting of reinforced concrete |
-
1996
- 1996-09-19 CN CN 96117097 patent/CN1160205A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371718C (en) * | 2003-07-10 | 2008-02-27 | 友达光电股份有限公司 | Condenser type acceleration sensor |
| RU2488107C2 (en) * | 2009-05-13 | 2013-07-20 | Общество с ограниченной ответственностью "Научно-производственное предприятие ОКБА" | Coulometric electrolytic cell |
| CN102469950A (en) * | 2009-07-02 | 2012-05-23 | 唯听助听器公司 | An ear plug with surface electrodes |
| CN102469950B (en) * | 2009-07-02 | 2015-06-17 | 唯听助听器公司 | An ear plug with surface electrodes |
| US9408552B2 (en) | 2009-07-02 | 2016-08-09 | Widex A/S | Ear plug with surface electrodes |
| US11161306B2 (en) | 2009-07-02 | 2021-11-02 | T&W Engineering A/S | Ear plug with surface electrodes |
| CN103822950A (en) * | 2014-03-11 | 2014-05-28 | 苏州热工研究院有限公司 | Embedded type composite reference electrode for corrosion monitoring/detecting of reinforced concrete |
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