CN108152332A - Disposable oxygen sensor - Google Patents
Disposable oxygen sensor Download PDFInfo
- Publication number
- CN108152332A CN108152332A CN201711316953.9A CN201711316953A CN108152332A CN 108152332 A CN108152332 A CN 108152332A CN 201711316953 A CN201711316953 A CN 201711316953A CN 108152332 A CN108152332 A CN 108152332A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- spring
- end cap
- oxygen
- lambda sensor
- 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.)
- Pending
Links
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 49
- 239000001301 oxygen Substances 0.000 title claims abstract description 49
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910001507 metal halide Inorganic materials 0.000 claims abstract description 13
- 150000005309 metal halides Chemical class 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 9
- 239000011799 hole material Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 229920003266 Leaf® Polymers 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910001510 metal chloride Inorganic materials 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- ISSXKNWTCLRPJY-UHFFFAOYSA-N O.O.[O-2].[Zr+4].[O-2] Chemical compound O.O.[O-2].[Zr+4].[O-2] ISSXKNWTCLRPJY-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The invention discloses a disposable oxygen sensor which comprises a breathable shell and a fine powder oxygen sensitive material contained in the breathable shell, wherein electrodes are respectively arranged at two ends of the shell, and the electrodes arranged at the two ends of the shell are mutually insulated. The fine powder oxygen sensitive material comprises the following components in percentage by weight: 40-60 parts of superfine iron powder with the particle size of less than 0.5 mu m; 20-50 parts of activated carbon; 20-40 parts of metal halide. The disposable oxygen sensor has high sensitivity and low cost.
Description
Technical field
The invention belongs to sensor technical field, particularly a kind of high water level baffle device for water easy to produce and process.
Background technology
The materials such as food, metal needs pack to completely cut off air storage, are stored especially for starvation, to protect
Card food never degenerates, and metal material surface does not aoxidize, so as to ensure product quality and extend the shelf life.It has been sealed to confirm
It is good, it needs packing inner placement lambda sensor, for checking the integrity of sealing at any time, this sealing is up to 2~3 sometimes
Year.
Due to detecting the sensor of oxygen at present generally using different inside and outside zirconium oxide at high temperature (＞ 650 DEG C when)
Oxygen concentration caused by oxygen voltage measure oxygen content, due to the use of when power consumption it is very big, therefore it is empty to be not suitable for isolation
Portable power supplies use in the case of gas.Also have oxygen sensor 4OXV types etc., similary power consumption is high, and price is high, generally 200 yuan with
On, the service life generally also only has 2 years, can not in high volume use.Therefore the packagings such as food largely use indicator type oxygen to pass at present
Sensor, actually indicator typically have the Ageless Eye that Mitsubishi Gas Chemical (MGC) are producedTM,
Once oxidation will change perceived color.Under low oxygen concentration (＜ 0.1%), sensor shows pink, but works as oxygen concentration
When gradually increasing, color gradually becomes blue.This sensor use cost is low, easy to use, but needs artificial detection, when big
Amount is difficult to automatic detection when using.
Application No. is 201610312496.5, publication date is that the Chinese invention patent application of 2016-10-26 discloses one kind
Oxygen indicator and the method that oxygen index line is made of the oxygen indicator, color change occurs when oxygen-free environment is to aerobic environment
Change, ambient oxygen content is detected with this, but be not suitable for detecting automatically.
Application No. is 201510956751.5, publication date is that the Chinese invention patent application of 2016-08-03 discloses one kind
Zirconium oxide oxygen sensor, including zirconia base, two alloy platinum material pump galvanic electrodes and a reference electrode；Zirconia base
Material is yttria-stabilized zirconia, and two alloy platinum material pump galvanic electrodes are respectively positioned on zirconia base.Due to needing height during work
Temperature heating, power consumption is big, therefore is not particularly suited for being widely used in the wireless automatic of the portable power supply of the needs such as sealed food packaging
Detection application.Galvanic type cell oxygen sensor (the current country there is no the product patent, and product is mostly import) also needs
Preheating, and general 2 years of service life, the aerobic detection of sealed environment being also not particularly suited under long-term portable power conditions use.
In short, problem of the existing technology is：Can electric-examination oxygen sensors sensitivity it is low, of high cost.
Invention content
It is high sensitivity, at low cost the purpose of the present invention is to provide a kind of disposable lambda sensor.
Realize the object of the invention technical solution be：
A kind of disposable lambda sensor, including ventilative housing and the fine-powdered oxygen sensitivity material being contained in the ventilative housing
Material, the housing both ends are respectively equipped with electrode, the electrode mutually insulated set on housing both ends.
The composition and weight percent of the fine-powdered oxygen-sensitive material be：
Superfine iron powder of the granularity less than 0.5 μm, 40~60；
Activated carbon, 20~50；
Metal halide, 20~40.
Compared with prior art, the present invention its remarkable advantage is：
1st, high sensitivity：Due to using superfine iron powder, activated carbon and metal halide as oxygen-sensitive material, at normal temperatures
Aerobic environment in there is to be easy to oxidation, therefore with higher sensitivity；
2nd, it is at low cost：It is not of the invention to use easy to use, low-cost material mixture ratio, by aerobic environment, leading
The superfine iron powder oxidation conductive characteristic of electricity changes the aerobic state of measuring environment, has low in energy consumption, and detection speed is fast, sensitive
Degree is high, available for realizing the automatic detection to air-tightness in the case of low-power consumption, and the characteristics of be easily changed.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the structure diagram of the disposable lambda sensor of the present invention.
Fig. 2 is the decomposition texture schematic diagram of the disposable lambda sensor of the present invention.
Fig. 3 is the bottom view of the disposable lambda sensor of the present invention.
Fig. 4 is the left view of Fig. 2.
Fig. 5 is the structure diagram of spring stand in Fig. 2.
In figure, 1-cylinder；11-through-hole；21-left electrode end cap；22-right electrode end cap；31-left conductive wafer；
32-right conductive wafer；4-oxygen-sensitive material；41-left tabletting spring；42-right tabletting spring；5-lining paper of breathing freely；It is left and right
Spring stand 71,72,81-left welding electrode；81-backhand welding receiving electrode；9-printed circuit board.
Specific embodiment
As shown in Figure 1, 2, 3, the disposable lambda sensor of the present invention including ventilative housing and is contained in the housing
Fine-powdered oxygen-sensitive material, the housing both ends are respectively equipped with left and right electrode, the housing insulation between the left and right electrode.
The composition and weight percent of the fine-powdered oxygen-sensitive material be：
Superfine iron powder of the granularity less than 0.5 μm, 40~60；
Activated carbon, 20~50；
Metal halide, 20~40.
Preferably, the metal halide is NaCl.
The basic principle of the present invention is：
Iron powder is conductive, while iron has strong reducing property, therefore is easily oxidized, and becomes nonconducting after oxidation
Oxide.The resistance of very little is presented in oxygen-free environment, after environment enters oxygen, oxidation of iron powder, resistance is increasing, in
Whether be can aerobic to detect environment with this.
Reduced iron powder slowly oxygen uptake can become Fe (OH) in air3, but the participation of the moisture content in air is had to, this
It is exactly getting rusty for iron, but this process is very slow, it is impossible to meet the intact needs of quick detection sealing state, the present invention mainly adopts
With 2 measures, first, using superfine iron powder, contact area bigger between one side iron powder, so as to improve and reduce oxygen sensitivity
Material initial resistance increases change in resistance contrast, on the other hand may be such that the exposed area bigger of iron powder, more easily oxygen
Change, while mix activated carbon and metal halide, under the catalytic action of activated carbon and metal halide, can further strengthen oxygen
Change acts on, but this effect usually requires the participation of a certain amount of water, but oxygen-sensitive material of the present invention cannot include water, once have
Water, even if in the case of starvation, electrolyte ion conduction will occur for metal halide and water, so as to lose the present invention
Detect the integrity made up.Therefore the present invention is using superfine iron powder, metal halide and activated carbon, even if in the participation of no water
In the case of can also generate stronger oxidation, so as to cause apparent change in resistance, and seal it is not intact in the case of,
The moisture content penetrated into the air of sealed environment can be further exacerbated by this oxidation, and resistance variations effect is more obvious.At this
In invention, resistance value can in 5 minutes in air for oxygen-sensitive material, and resistance increases to 45M by 1.6M, so as to by detecting
Whether sealing space enters air.
Preferably, the cylinder 1 of the ventilative housing including both ends open, with the removable connection in cylinder both ends
Left and right electrode end cap 21,22 further includes left and right conductive wafer (31,32) and left and right tabletting spring 41,42；
The left and right conductive wafer (31,32) is placed in cylinder 1, sensitive with fine-powdered oxygen with 1 inner wall loose fit of cylinder
Material 4 contacts；
Described left 41 one end of tabletting spring connects left electrode end cap 21, and the other end connects left conductive wafer 31；
Described right 42 one end of tabletting spring connects right electrode end cap 22, and the other end connects right conductive wafer 32；
The cylinder 1 is made of insulating materials, the left and right electrode end cap 21,22, left and right conductive wafer 31,32 and
Left and right tabletting spring 41,42 is made of electrically conductive material.
Preferably, the cylinder 1 is equipped with multiple through-holes 11, and 1 inner wall of cylinder is lined with ventilative lining paper 5, the fine-powdered oxygen
Sensitive material is wrapped in the ventilative lining paper 5.
As shown in Figure 4, it is preferable that the cylinder 1 is cylindrical shape, the left and right electrode end cap 21,22 and 1 screw thread of cylinder
Connection.
As shown in figure 5, as an improvement, conductive left and right spring stand 71,72 is further included, on the left spring deck 71
End is clamped in left 21 outside of electrode end cap, and right 72 upper end of spring stand is clamped in right 22 outside of electrode end cap, the left and right spring
Deck 71,72 lower ends are used to be welded on printed circuit board 9.
In typical case's implementation, general to be matched using median superfine iron powder using 60%, very little meeting electric conductivity reduces, activated carbon
25% is selected, metal halide typical case selects NaCl, and accounting 15% is nontoxic and at low cost, readily available.
Certainly it is higher if necessary to sensitivity, iron powder accounting can be reduced, typical such as superfine iron powder matches 40%,
Activated carbon 50%, metal chloride 10%.
If moisture content is less in air, it can suitably increase metal halide accounting, typical such as superfine iron powder matches 30%,
Activated carbon 30%, metal chloride 40%.
1 outer diameter of cylinder is less than 2cm for size diameter, and length is less than the insulation drum shell of 4cm, and is offered on its barrel of wall
Air hole 11, one or both ends carry internal thread, and this programme is TBE (threaded both ends), during actual implementation can also one end closing, only
There is one end band internal thread.
Oxygen-sensitive material 4 is leaked out from venthole in order to prevent, and for 1 inside of cylinder with lining paper 5, lining paper 5 is saturating with hole
Depressed structure, and hole is less than 4 particle minimum diameter of oxygen-sensitive material, lining paper 5 is completely attached on 1 inner wall of cylinder.
In order to close and oxygen-sensitive material 4 be drawn with conductor, there is provided band spring electrode end cap 21,22, electrode end caps
21st, 22 be conductive metallic material, internal connecting spring 41,42 one end, the other end of spring 41,42 connect a conductive wafer 31,
32, electrode end cap 21 and tabletting spring 41 are direct-connected conductor, and spring 41 and conductive wafer 31 are direct-connected conductor, right side situation phase
Together, conductive wafer 31,32 internal diameters are slightly less than 1 internal diameter of cylinder, and electrode end cap 21,22 one end carry external screw thread or interior spiral shell
Line, the external screw thread or internal thread insulation drum shell internal thread or external screw thread match.
Spring stand both ends respectively there are two metallic spring 71,72, two metallic springs 71,72 in original state away from
From less than electrode end cap 21,22 diameters, convenient for clamping lambda sensor, both ends metallic spring 71, the distance between 72 and electrode
End cap 21, the distance between 22 is identical (after electrode end cap 21,22 is installed with the cooperation of drum shell 1), electrode end cap 21,22 and circle
Spring leaf 71,72 is just caught in after the bucket cooperation installation of shell 1, welding electrode 81 that spring leaf 71,72 is drawn with its bottom, 82 phases
Even, usual 81,82 welding electrodes should be welded on printed circuit board 9.
Oxygen-sensitive material is loaded in a round insulation shell, and shell is less than 4cm for size diameter, and length is less than 8cm's
Insulating materials cylinder.Since the present invention needs to detect the resistance of wherein filling oxygen-sensitive material, it is therefore desirable to casing insulation.Absolutely
Edge shell is provided with ventilative hole, and oxygen-sensitive material is made to be contacted with detection environmental gas, and both ends or one end are with internal thread or outside
Screw thread, convenient for being assembled with electrode end cap.Shell is less than 2cm for size diameter, and length is less than the limitation of 4cm, and main purpose is to subtract
Small size sensor reduces occupied space, is easy to use.
Since oxygen-sensitive material particle is tiny, sensitive material leaks out in circular housing air hole in order to prevent, therefore this
Invention is completely attached to using lining paper on drum outer casing inner wall, and lining paper is with hole ventilating structure, and to be less than oxygen sensitive for hole
Material granule minimum diameter.
In order to detect oxygen-sensitive material resistance, present invention employs band spring conduction end cap, mounted on circular housing both ends,
Electrode tip cover strip has a spring, and electrode end cap is conductive metallic material, internal connecting spring one end, and the other end of spring connects a gold medal
Belong to disk, electrode end cap is direct-connected conductor with spring, and spring is direct-connected conductor with circle metal plate, and sheet metal internal diameter is slightly less than material
Bucket internal diameter, electrode end cap one end carry external screw thread or internal thread, match with drum shell internal thread or external screw thread, work as end in this way
After lid is assembled with cylindrical shell, oxygen-sensitive material resistance is led to two and led by spring and the compressible oxygen-sensitive material of disk
Electric endcap electrode.
In order to which lambda sensor resistance is connected to detection circuit, and lambda sensor is conveniently replaceable, the present invention devises spring
Deck, respectively there are two metallic spring, it is straight that two spring leafs distance in original state is less than electrode end cap at spring stand both ends
The distance between the distance between diameter, both ends metallic spring and electrode end cap (after electrode end cap is installed with the cooperation of drum shell)
It is identical, just it is caught in spring leaf, the welding electrode that spring leaf is drawn with its bottom after electrode end cap and the cooperation installation of drum shell
It is connected.
Claims (7)
1. a kind of disposable lambda sensor, it is characterised in that：Including ventilative housing and the fine powder being contained in the ventilative housing
Shape oxygen-sensitive material, the housing both ends are respectively equipped with electrode, the electrode mutually insulated set on housing both ends.
2. lambda sensor according to claim 1, which is characterized in that the composition and weight of the fine-powdered oxygen-sensitive material
Percentage is：
Superfine iron powder of the granularity less than 0.5 μm, 40~60；
Activated carbon, 20~50；
Metal halide, 20~40.
3. lambda sensor according to claim 1, it is characterised in that：
The metal halide is NaCl.
4. lambda sensor according to claim 1, which is characterized in that
The ventilative housing includes the cylinder (1) of both ends open, the left and right electrode end cap with the removable connection in cylinder both ends
(21,22) further include left and right conductive wafer (31,32) and left and right tabletting spring (41,42)；
The left and right conductive wafer (31,32) is placed in cylinder (1), and with cylinder (1) inner wall loose fit, it is quick to compress fine-powdered oxygen
Feel material；
Described left tabletting spring (41) one end connects left electrode end cap (21), and the other end connects left conductive wafer (31)；
Described right tabletting spring (42) one end connects right electrode end cap (22), and the other end connects right conductive wafer (32)；
The cylinder (1) is made of insulating materials, the left and right electrode end cap (21,22), left and right conductive wafer (31,32) and
Left and right tabletting spring (41,42) is made of electrically conductive material.
5. lambda sensor according to claim 4, which is characterized in that
The cylinder (1) is equipped with multiple through-holes (11), and cylinder (1) inner wall is lined with ventilative lining paper (5), and the fine-powdered oxygen is sensitive
Material is wrapped in the ventilative lining paper (5).
6. lambda sensor according to claim 4, which is characterized in that
The cylinder (1) is cylindrical shape, and the left and right electrode end cap (21,22) is threadedly coupled with cylinder (1).
7. lambda sensor according to claim 4, which is characterized in that
Conductive left and right spring stand (71,72) is further included, left spring deck (71) upper end is clamped in left electrode end cap
(21) outside, right spring stand (72) upper end are clamped on the outside of right electrode end cap (22), the left and right spring stand (71,72)
Lower end is used to be welded on printed circuit board (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316953.9A CN108152332A (en) | 2017-12-12 | 2017-12-12 | Disposable oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316953.9A CN108152332A (en) | 2017-12-12 | 2017-12-12 | Disposable oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108152332A true CN108152332A (en) | 2018-06-12 |
Family
ID=62466126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711316953.9A Pending CN108152332A (en) | 2017-12-12 | 2017-12-12 | Disposable oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108152332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267529A (en) * | 2021-05-12 | 2021-08-17 | 江西师范大学 | Temperature type biosensor and method for detecting target aptamer by using temperature type biosensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4182666A (en) * | 1977-03-15 | 1980-01-08 | National Research Development Corporation | Oxygen sensors |
| CN201037779Y (en) * | 2006-12-09 | 2008-03-19 | 承德市本特万达仪表有限公司 | Electromagnetic flow transducer without lining |
| CN102353702A (en) * | 2011-07-22 | 2012-02-15 | 李学中 | Oxide semiconductor normal temperature oxygen sensor |
| CN106248760A (en) * | 2016-09-09 | 2016-12-21 | 中广核研究院有限公司 | Measure the solid-phase reference electrode oxygen sensor of dissolved oxygen activity in liquid metal |
-
2017
- 2017-12-12 CN CN201711316953.9A patent/CN108152332A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4182666A (en) * | 1977-03-15 | 1980-01-08 | National Research Development Corporation | Oxygen sensors |
| CN201037779Y (en) * | 2006-12-09 | 2008-03-19 | 承德市本特万达仪表有限公司 | Electromagnetic flow transducer without lining |
| CN102353702A (en) * | 2011-07-22 | 2012-02-15 | 李学中 | Oxide semiconductor normal temperature oxygen sensor |
| CN106248760A (en) * | 2016-09-09 | 2016-12-21 | 中广核研究院有限公司 | Measure the solid-phase reference electrode oxygen sensor of dissolved oxygen activity in liquid metal |
Non-Patent Citations (1)
| Title |
|---|
| 周良骏: "传感器在中学化学实验探究中的应用", 《化学教与学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267529A (en) * | 2021-05-12 | 2021-08-17 | 江西师范大学 | Temperature type biosensor and method for detecting target aptamer by using temperature type biosensor |
| CN113267529B (en) * | 2021-05-12 | 2022-10-25 | 江西师范大学 | Temperature type biosensor and method for detecting target aptamer by using temperature type biosensor |
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Application publication date: 20180612 |