CN204065006U - A kind of portable dissolved oxygen analyzer - Google Patents
A kind of portable dissolved oxygen analyzer Download PDFInfo
- Publication number
- CN204065006U CN204065006U CN201420533654.6U CN201420533654U CN204065006U CN 204065006 U CN204065006 U CN 204065006U CN 201420533654 U CN201420533654 U CN 201420533654U CN 204065006 U CN204065006 U CN 204065006U
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- CN
- China
- Prior art keywords
- electrode
- dissolved
- closeouts
- oxygen
- temperature sensor
- Prior art date
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- Expired - Fee Related
Links
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 71
- 239000001301 oxygen Substances 0.000 title claims abstract description 71
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 230000008054 signal transmission Effects 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 24
- 239000008151 electrolyte solution Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000007705 chemical test Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 electrode Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a kind of portable dissolved oxygen analyzer, comprise dissolved-oxygen content analyser body, dissolved-oxygen content analyser body is plugged with dissolved oxygen electrode, described dissolved oxygen electrode comprises hollow body, wherein one end of hollow body is fixedly connected with closeouts, the other end is fixedly connected with lower closeouts, the wire for transmission of signal is provided with in described hollow body, described lower closeouts is fixedly connected with electrode, electrode runs through lower closeouts, wherein one end of wire is electrically connected with electrode, the other end of wire is passed by upper closeouts and is connected with the electronic unit in dissolved-oxygen content analyser body, the utility model adopts technique scheme, and measuring accuracy is high, water resistance good, long service life, and antijamming capability is strong.
Description
Technical field
The utility model relates to Physico-chemical tests instrument field, specifically a kind of portable dissolved oxygen analyzer.
Background technology
Dissolved-oxygen content analyser can be used for the departments such as water source monitoring from the beginning, aquaculture, environmental protection, sewage treatment plant, beverage industry and R&D institution to the mensuration of Dissolved Oxygen in Water.In existing dissolved-oxygen content analyser, the parts of most critical are dissolved oxygen electrodes, existing dissolved oxygen electrode mainly comprises oxygen permeation membrane, electrode, electrolytic solution housing etc., the dissolved oxygen electrode integral waterproofing performance of existing dissolved-oxygen content analyser is bad, easily seeps water or leaks and cause testing result inaccurate.The change of temperature can produce significant impact to the oxygen transmission rate of oxygen permeation membrane in addition, thus affects dissufion current.In addition, existing temperature sensor circuit jitter, poor anti jamming capability, causes temperature measurement disparity comparatively large, affects testing result.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, provides a kind of measuring accuracy
Height, water resistance are good, long service life, the portable dissolved oxygen analyzer that antijamming capability is strong.
For solving the problem, the utility model is by the following technical solutions: a kind of portable dissolved oxygen analyzer, comprise dissolved-oxygen content analyser body, dissolved-oxygen content analyser body is plugged with dissolved oxygen electrode, described dissolved oxygen electrode comprises hollow body, wherein one end of hollow body is fixedly connected with closeouts, the other end is fixedly connected with lower closeouts, the wire for transmission of signal is provided with in described hollow body, described lower closeouts is fixedly connected with electrode, electrode runs through lower closeouts, wherein one end of wire is electrically connected with electrode, the other end of wire is passed by upper closeouts and is connected with the electronic unit in dissolved-oxygen content analyser body,
The outside of described electrode is set with oxygen permeation membrane cap, oxygen permeation membrane cap is fixedly connected with lower closeouts, oxygen permeation membrane cap comprises housing and is fixed on the oxygen permeation membrane of shell end, containing electrolytic solution in oxygen permeation membrane cap, electrode is immersed in electrolytic solution, the outside of described oxygen permeation membrane cap is set with protective cover, and protective cover offers permeable hole;
Position near lower closeouts on described electrode is provided with temperature sensor.
Below further improvement of the utility model:
Described temperature sensor is arranged on hollow body inside, and temperature sensor is electrically connected with the temperature sensor signal treatment circuit in dissolved-oxygen content analyser body;
Further improvement:
Described temperature sensor is PT100 temperature sensor.
Further improvement:
Described temperature sensor signal treatment circuit is made up of resistance RT1, RT2, RT3, R22, R23, R24, R25, R26 and amplifier LM124.
Further improvement:
Be provided with the first O-ring seal between described upper closeouts and hollow body, between described lower closeouts and hollow body, be provided with the second O-ring seal.
The utility model adopts technique scheme, and measuring accuracy is high, water resistance good, long service life, and antijamming capability is strong.
Be described further below in conjunction with accompanying drawing the technical solution of the utility model.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the structural representation of dissolved oxygen electrode in accompanying drawing 1;
Accompanying drawing 3 is the schematic diagram of temperature sensor signal treatment circuit.
In figure: 1-dissolved-oxygen content analyser body; 2-dissolved oxygen electrode; 3-wire; 4-protective cover; 5-permeable hole; The upper closeouts of 6-; 7-first O-ring seal; 8-hollow body; 9-second O-ring seal; 10-temperature sensor; Closeouts under 11-; 12-electrode; 13-oxygen permeation membrane cap; 131-housing; 132-oxygen permeation membrane.
Embodiment
Embodiment, as Fig. 1, Fig. 2, shown in Fig. 3, a kind of portable dissolved oxygen analyzer, comprise dissolved-oxygen content analyser body 1, dissolved-oxygen content analyser body 1 is plugged with dissolved oxygen electrode 2, described dissolved oxygen electrode 2 comprises hollow body 8, wherein one end of hollow body 8 is fixedly connected with closeouts 6, the other end is fixedly connected with lower closeouts 11, the first O-ring seal 7 is provided with between described upper closeouts 6 and hollow body 8, the second O-ring seal 9 is provided with between described lower closeouts 11 and hollow body 8, the wire 3 for transmission of signal is provided with in described hollow body 8, described lower closeouts 11 is fixedly connected with electrode 12, electrode 12 runs through lower closeouts 11, wherein one end of wire 3 is electrically connected with electrode 12, the other end of wire 3 is passed by upper closeouts 6 and is connected with the electronic unit in dissolved-oxygen content analyser body 1.
The outside of described electrode 12 is set with oxygen permeation membrane cap 13, oxygen permeation membrane cap 13 is fixedly connected with lower closeouts 11, oxygen permeation membrane cap 13 comprises housing 131 and is fixed on the oxygen permeation membrane 132 of shell end, containing electrolytic solution in oxygen permeation membrane cap 13, electrode 12 is immersed in electrolytic solution, the outside of described oxygen permeation membrane cap 13 is set with protective cover 4, protective cover 4 offers permeable hole 5.Adopt the dissolved oxygen electrode 2 of said structure, water resistance is good, can not cause infiltration or leak, long service life.
Position near lower closeouts 11 on described electrode 12 is provided with temperature sensor 10, and it is inner that temperature sensor 10 is arranged on hollow body 8, and temperature sensor 10 is electrically connected with the temperature sensor signal treatment circuit in dissolved-oxygen content analyser body 1.
Described oxygen permeation membrane 132 is arranged on housing 131 end, makes sensor quick for installation, and not fragile oxygen permeation membrane, increases the service life, thus improves measuring accuracy; Protective cover 4 be arranged so that liquid to be detected is entered by permeable hole 5, can the electrode 12 of monitoring for protection reactive end preferably, the monitoring of environmental of complexity preferably.
As shown in Figure 3, described temperature sensor 10 is PT100 temperature sensor, and described temperature sensor signal treatment circuit is made up of resistance RT1, RT2, RT3, R22, R23, R24, R25, R26 and amplifier LM124.Adopt said temperature sensor signal processing circuit, signal stabilization, antijamming capability is strong, and the numerical value recorded is accurate.
Claims (5)
1. a portable dissolved oxygen analyzer, comprise dissolved-oxygen content analyser body (1), dissolved-oxygen content analyser body (1) is plugged with dissolved oxygen electrode (2), it is characterized in that: described dissolved oxygen electrode (2) comprises hollow body (8), wherein one end of hollow body (8) is fixedly connected with closeouts (6), the other end is fixedly connected with lower closeouts (11), the wire (3) for transmission of signal is provided with in described hollow body (8), described lower closeouts (11) is fixedly connected with electrode (12), electrode (12) runs through lower closeouts (11), wherein one end of wire (3) is electrically connected with electrode (12), the other end of wire (3) is passed by upper closeouts (6) and is connected with the electronic unit in dissolved-oxygen content analyser body (1),
The outside of described electrode (12) is set with oxygen permeation membrane cap (13), oxygen permeation membrane cap (13) is fixedly connected with lower closeouts (11), oxygen permeation membrane cap (13) comprises housing (131) and is fixed on the oxygen permeation membrane (132) of shell end, containing electrolytic solution in oxygen permeation membrane cap (13), electrode (12) is immersed in electrolytic solution, the outside of described oxygen permeation membrane cap (13) is set with protective cover (4), protective cover (4) offers permeable hole (5);
The upper position near lower closeouts (11) of described electrode (12) is provided with temperature sensor (10).
2. a kind of portable dissolved oxygen analyzer according to claim 1, it is characterized in that: it is inner that temperature sensor (10) is arranged on hollow body (8), and temperature sensor (10) is electrically connected with the temperature sensor signal treatment circuit in dissolved-oxygen content analyser body (1).
3. a kind of portable dissolved oxygen analyzer according to claim 2, is characterized in that: described temperature sensor (10) is PT100 temperature sensor.
4. a kind of portable dissolved oxygen analyzer according to claim 3, is characterized in that: described temperature sensor signal treatment circuit is made up of resistance RT1, RT2, RT3, R22, R23, R24, R25, R26 and amplifier LM124.
5. a kind of portable dissolved oxygen analyzer according to claim 4, it is characterized in that: between described upper closeouts (6) and hollow body (8), be provided with the first O-ring seal (7), between described lower closeouts (11) and hollow body (8), be provided with the second O-ring seal (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533654.6U CN204065006U (en) | 2014-09-17 | 2014-09-17 | A kind of portable dissolved oxygen analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533654.6U CN204065006U (en) | 2014-09-17 | 2014-09-17 | A kind of portable dissolved oxygen analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065006U true CN204065006U (en) | 2014-12-31 |
Family
ID=52206492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420533654.6U Expired - Fee Related CN204065006U (en) | 2014-09-17 | 2014-09-17 | A kind of portable dissolved oxygen analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204065006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044155A (en) * | 2015-06-24 | 2015-11-11 | 中山欧麦克仪器设备有限公司 | Multi-parameter sensor integrating pH, salinity and dissolved oxygen |
| CN112034122A (en) * | 2020-08-10 | 2020-12-04 | 南京奇崛电子科技有限公司 | Waterproof type water quality sensor |
| CN114813865A (en) * | 2022-03-25 | 2022-07-29 | 上海博取仪器有限公司 | Split type sensor universal for pH and dissolved oxygen |
-
2014
- 2014-09-17 CN CN201420533654.6U patent/CN204065006U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044155A (en) * | 2015-06-24 | 2015-11-11 | 中山欧麦克仪器设备有限公司 | Multi-parameter sensor integrating pH, salinity and dissolved oxygen |
| CN112034122A (en) * | 2020-08-10 | 2020-12-04 | 南京奇崛电子科技有限公司 | Waterproof type water quality sensor |
| WO2022032710A1 (en) * | 2020-08-10 | 2022-02-17 | 南京奇崛电子科技有限公司 | Waterproof water quanlity sensor |
| CN114813865A (en) * | 2022-03-25 | 2022-07-29 | 上海博取仪器有限公司 | Split type sensor universal for pH and dissolved oxygen |
| CN114813865B (en) * | 2022-03-25 | 2023-10-27 | 上海博取仪器有限公司 | PH and dissolved oxygen general split type sensor |
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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 |
Granted publication date: 20141231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |