CN2575671Y - Vehicle wheel speed sensor pulse ring - Google Patents
Vehicle wheel speed sensor pulse ring Download PDFInfo
- Publication number
- CN2575671Y CN2575671Y CN 02270495 CN02270495U CN2575671Y CN 2575671 Y CN2575671 Y CN 2575671Y CN 02270495 CN02270495 CN 02270495 CN 02270495 U CN02270495 U CN 02270495U CN 2575671 Y CN2575671 Y CN 2575671Y
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- cathode
- handle
- silver
- anode
- gold
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Abstract
The utility model relates to a vehicle wheel speed sensor pulse ring, which is an electrode using a biosensor method to fast detect BOD (Biochemical Oxygen Demand). The utility model has the structure that a shielded wire is penetrated through the middle hole of a handle from the upper end of the handle and is extended out downward; an anode wire is connected with a silver anode; a cathode wire is connected with a gold cathode; the gold cathode is connected to the part under a cathode supporting bar positioned below the silver anode. A breathable film is arranged between and used for isolating the gold cathode and a microbial film below the gold cathode. The breathable film is tightly clamped on the lower end of the handle by an O-shaped ring. The utility model is characterized in that a block-shaped silver block is used as the silver anode, a circular gold piece is used as the gold cathode, and the microbial film is arranged in a biological film press cap connected to the lower end of the handle. The utility model has the advantages of more reasonable structure, and extended service life of the electrode. The deviation of the area of the gold cathode has no influence on final measure result, and the deviation of the measure result caused by the actions of replacing the electrode frequently and reinstalling position rings is eliminated.
Description
(1) technical field
The utility model relates to a kind of with biology sensor method fast detecting BOD (Biochemical Oxygen Demand, biochemical oxygen demand) used biochemical oxygen demand electrode, adopt immobilized microbial film as sensitive element, and closely combine with oxygen electrode and to form, be a kind of biochemical oxygen demand bioelectrode specifically.
(2) background technology
Adopt the biochemical oxygen demand bioelectrode of biology sensor method to mainly contain two kinds, a kind of is flow type, and a kind of is the adding formula.Mainly there is following shortcoming in existing adding formula bioelectrode: its structure is to adopt the anode of Ag-AgCl thin slice as electrode, and platinum wire is as the negative electrode of electrode.In the use, because within the specific limits, the surface area of Ag-AgCl anode is big more, then measuring accuracy is high more, anode is to adopt the mode that plates one deck AgCl on the thin slice of Ag, because manufacture craft itself causes the very big consume of generation in the use, thereby serviceable life is shorter, generally is no more than one month; Diameter as the platinum wire of negative electrode is thin more, higher degree of accuracy will be produced, general diameter is in 0.1 millimeter, and the diameter of platinum wire has not together a little, the measuring accuracy of product will directly be influenced, and then cause the measuring accuracy that needs often to adjust equipment in the use, cause very big inconvenience to use; Centring ring in the existing structure and electrode are the branch body structures, owing to will often take off the electrode that centring ring more renews, tend to because the position difference of centring ring causes the deviation of measurement result.
(3) summary of the invention
The utility model purpose is to overcome the shortcoming in the above-mentioned technology, proposes a kind of biochemical oxygen demand bioelectrode, and it can be increased the service life, and the stably measured degree of accuracy is easy to operate.
The utility model purpose is realized by following technical scheme: this biochemical oxygen demand bioelectrode, shielding line passes the handle interstitial hole from the handle upper end and stretches out downwards, anode line connects silver anode, cathode line connects au cathode, au cathode is connected below the cathode branch strut that is positioned at below the silver anode, there is ventilated membrane to separate between the microbial film of au cathode and its below, ventilated membrane is clamped on handle, at its lower end by O shape circle, it is characterized in that with block silver bullion as silver anode, as au cathode, microbial film is placed in the biological membrane pressure cap that is connected in handle, at its lower end with the gold plaque of circle.
Centring ring and handle are an integral body that is injection molded into, and several air holes are arranged above the centring ring.Existing support positioning action can maintain the circulation of air again.Silver bullion shape as silver anode is cylindrical, or prismatic, and there is the open-work of the cathode line of passing the centre.Diameter as the circular gold plaque of au cathode is 3-5 millimeters.
The principle of work of BOD bioelectrode is in the BOD bioelectrode immerses by oxygen-saturated phosphate buffered solution the time, dissolved molecular oxygen spreads to oxygen electrode by microbial film, owing to solution maintenance constant temperature and by oxygen saturation, so dissolved molecular oxygen is certain to the rate of diffusion of oxygen electrode, thereby the response current of oxygen electrode is also certain.If will contain organic water sample adds in the buffer solution, then organic molecule also spreads to microbial film, because microorganism plays assimilation to organic substance, cause the dissolved oxygen depletion that is diffused in the microbial film to increase, thereby cause the electrode output current to reduce, can be reduced to steady-state value in a few minutes, oxygen molecule in film, spread and microbial assimilation organism oxygen consumption between set up new kinetic balance.When conditions such as solution temperature, stirring rate, organic concentration scope one regularly, linear between the organic concentration of the straight and solution of the reduction of electrode output current.And organic concentration and BOD have certain corresponding relation (with BOD
5Standard law is as the criterion).By data are handled, can learn the BOD value of water.
The utility model advantage is that structure is more reasonable, owing to adopt block silver bullion as silver anode, though bigger consume is arranged in the use,, bigger silver bullion has bigger quality, can improve the serviceable life of electrode greatly; Owing to adopt gold plaque as au cathode, because the area of gold plaque is bigger, even area has deviation, but for total system, this deviation can not produce certain influence to final measurement result yet again; Again because centring ring and the handle that will have an air hole are injection molded into an integral body, eliminated since often the replacing electrode need reinstall the deviation of the measurement result that centring ring causes.
(4) description of drawings
Fig. 1 is a kind of structural representation of BOD bioelectrode,
Fig. 2 is a vertical view, concerns that centring ring and handle are injected into one between expression centring ring, air hole and the handle, and 6 air holes are arranged on the centring ring,
Fig. 3 is the end enlarged drawing of BOD bioelectrode,
(5) embodiment, the contrast description of drawings
This biochemical oxygen demand bioelectrode, shielding line 1 passes the handle interstitial hole from handle 2 upper ends and stretches out downwards, anode line 5 connects silver anode 8, cathode line 6 connects au cathode 12, au cathode is connected below the cathode branch strut 9 that is positioned at below the silver anode, there is ventilated membrane 10 to separate between the microbial film 11 of au cathode and its below, ventilated membrane is clamped on handle 2 lower ends by O shape circle 13, microbial film 11 is placed in the biological membrane pressure cap 7 that is connected in handle, at its lower end, with the silver bullion of cylindrical bulk as silver anode 8, as au cathode 12, au cathode is that diameter is 4 millimeters a disk with the gold plaque of circle.Centring ring 4 is an integral body that is injection molded into handle 2, and 6 air holes 3 are arranged above the centring ring.
Claims (4)
1, a kind of biochemical oxygen demand bioelectrode, shielding line passes the handle interstitial hole from the handle upper end and stretches out downwards, anode line connects silver anode, cathode line connects au cathode, au cathode is connected below the cathode branch strut that is positioned at below the silver anode, there is ventilated membrane to separate between the microbial film of au cathode and its below, ventilated membrane is clamped on handle, at its lower end by O shape circle, it is characterized in that with block silver bullion as silver anode, as au cathode, microbial film is placed in the biological membrane pressure cap that is connected in handle, at its lower end with the gold plaque of circle.
2,, it is characterized in that centring ring and handle are an integral body that is injection molded into, and have several air holes above the centring ring according to the described biochemical oxygen demand bioelectrode of claim 1.
3, according to the described biochemical oxygen demand bioelectrode of claim 1, it is characterized in that the silver bullion shape as silver anode is cylindrical, or prismatic, there is the open-work of the cathode line of passing the centre.
4,, it is characterized in that being 3-5 millimeters as the diameter of the circular gold plaque of au cathode according to the described biochemical oxygen demand bioelectrode of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270495 CN2575671Y (en) | 2002-10-29 | 2002-10-29 | Vehicle wheel speed sensor pulse ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270495 CN2575671Y (en) | 2002-10-29 | 2002-10-29 | Vehicle wheel speed sensor pulse ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2575671Y true CN2575671Y (en) | 2003-09-24 |
Family
ID=33735548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270495 Expired - Fee Related CN2575671Y (en) | 2002-10-29 | 2002-10-29 | Vehicle wheel speed sensor pulse ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2575671Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807864A (en) * | 2015-01-08 | 2015-07-29 | 北京神州瑞霖环保科技有限公司 | Digital electrode for measuring content of perfluorocapylic acid and measuring apparatus |
-
2002
- 2002-10-29 CN CN 02270495 patent/CN2575671Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807864A (en) * | 2015-01-08 | 2015-07-29 | 北京神州瑞霖环保科技有限公司 | Digital electrode for measuring content of perfluorocapylic acid and measuring apparatus |
| CN104807864B (en) * | 2015-01-08 | 2018-07-13 | 西藏神州瑞霖环保科技股份有限公司 | A kind of digital electrode and measurement device measuring perfluoro caprylic acid content |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |