CN203595682U - Oxygen sensor - Google Patents
Oxygen sensor Download PDFInfo
- Publication number
- CN203595682U CN203595682U CN201320745593.5U CN201320745593U CN203595682U CN 203595682 U CN203595682 U CN 203595682U CN 201320745593 U CN201320745593 U CN 201320745593U CN 203595682 U CN203595682 U CN 203595682U
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- Prior art keywords
- oxygen
- sensor
- sensitive element
- oxygen concentration
- electrical signal
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Abstract
The utility model relates to the technical field of environmental monitoring and discloses an oxygen sensor which mainly comprises two parts, namely an oxygen concentration sensitive element and a signal treatment unit, wherein the oxygen concentration sensitive element adopts an electrochemistry polarogram diaphragm type oxygen electrode; the oxygen electrode can convert the oxygen percentage composition in gas into a weak electrical signal in direct proportion to the to-be-measured oxygen concentration; the signal treatment unit amplifies the weak electrical signal outputted by the oxygen electrode, sends the amplified electrical signal to an analog-digital converter, and sends the electrical signal to a display circuit and an output circuit via sampling and treatment by a single-chip microcomputer, and a nixie tube is used for displaying the measured oxygen percentage composition. The oxygen sensor is long in service life, high in measurement accuracy, excellent in repeatability, simple in structure, reliable in performance, convenient to debug and maintain and high in shock resistance, achieves multiple purposes, adopts a low-power design, and increases the transmission distance.
Description
Technical field
The present invention relates to environmental monitoring technology field, refer more particularly to a kind of oxygen sensor.
Background technology
Mine safety is that China pays close attention to and urgent problem always, the collection in colliery is produced and is faced with many difficulties, particularly colliery can produce a large amount of flammable explosive gas in process of production, in recent years, mine safety explosion accident frequently occurs, and has caused huge economic loss and casualties, and cause the pollution of environment, various harmful gases are numerous, therefore, first want the concentration of foreign flavour of underwriter existence most important.Along with gas detection sensor moves in coal production, Safety of Coal Mine Production has obtained certain change, only have by sensitive reliable detecting instrument and just can detect, oxygen sensor can detect the variation of oxygen concentration, and records and be transferred to alarm, in the time reaching certain numerical value, alarm can start warning device, avoid the generation of accident, the detection methane concentration variation range of existing sensor is wide not, and the shell resistance to impact of sensor is strong not.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, dependable performance, debugging, easy to maintenance, sensitiveer, accurately, sensor firmly.
It comprises sensor fore shell, sensor back cover, handle, oxygen concentration sensitive element, signal processing unit, display circuit, analog to digital converter, single-chip microcomputer, output circuit, power supply, aviation plug, charactron and buzzer siren the utility model, described oxygen concentration sensitive element, signal processing unit, display circuit, analog to digital converter, single-chip microcomputer, display circuit, output circuit, power supply, charactron and buzzer siren are arranged in the cavity that described sensor fore shell and sensor back cover be combined into, and described aviation plug is arranged on sensor fore shell.
Preferably, described oxygen concentration sensitive element adopts galvanochemistry polarogram diaphragm type oxygen electrode.
Preferably, described display circuit is made up of display window and display driver circuit, and described display window is made up of four eight sections of red charactrons.
Preferably, the commissure of the forward and backward shell of described sensor is provided with and can prevents dust, the rubber seal of waterproof is enclosed, and bottom is for being equipped with restriction diffusion type air chamber and oxygen concentration sensitive element probe.
A kind of oxygen sensor of the utility model, the life-span is long, and measuring accuracy is high, reproducible, and simple in structure, dependable performance, debugging, easy to maintenance, realized a tractor serves several purposes, and complete machine low power dissipation design has increased the transmission range of sensor, strong shock resistance.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.
Fig. 1 is the utility model front view;
Fig. 2 is the utility model rear view;
Fig. 3 is the utility model left view;
Fig. 4 is aviation plug cut-open view;
Fig. 5 is the sequence number Pareto diagram of plug on cable.
In figure: 1-sensor handle, 2-luminous plaque parts, 3-nameplate 1, 4-sensor rubber blanket, 5-sensor holder assembly, 6-oxygen sensor parts, 7-pickup dust-proofing net, 8-aviation plug 16, 9-hummer waterproof net, 10-form rubber blanket, 11-transparent window, 12-mainboard supports copper nut, 13-mainboard parts, 14-nameplate 2, 15-sensor fore shell, 16-sensor back cover, B1-socket head cap screw, B2-hexagonal nut, B3-plain washer 1, B4-O type circle, B5-sunk screw, B6-pan-headed screw, B7-plain washer 2, B8-spring washer, B9-hexagon socket head cap screw.
Embodiment
Referring to Fig. 1 Fig. 2 Fig. 3, sensor fore shell, sensor back cover, sensor handle, oxygen concentration sensitive element, signal processing unit, display circuit, analog to digital converter, single-chip microcomputer, display circuit, output circuit, power supply, aviation plug, charactron and buzzer siren.Oxygen concentration sensitive element adopts galvanochemistry polarogram diaphragm type oxygen electrode, and this oxygen electrode can be converted to the ultra-weak electronic signal that is proportional to tested oxygen concentration by the oxygen percentage composition in gas.Signal processing unit is exported oxygen electrode after ultra-weak electronic signal choosing row amplifies and is delivered to analog to digital converter, after single-chip microcomputer sampling, processing, send display circuit and output circuit, is shown the percentage composition of tested oxygen by charactron.Sensor internal circuit board assemblies is by High Performance SCM and high integrated digital the electric circuit constitute.Sensor adopts import high precision sensitive element.Sensor can continuous detecting oxygen gas, has the function such as sound and light alarm, self check.The high efficiency power supply of described power acquisition.Display circuit is made up of display window and display driver circuit, and display window is made up of four eight sections of red charactrons.Sensor fore shell and back cover are stamped to form by high-strength stainless steel, the commissure of front and rear casing be can prevent dust, the rubber seal of waterproof encloses, bottom is for being equipped with restriction diffusion type air chamber and methane gas detecting element probe.
Before using, first user will correctly complete being connected of this sensor and hung underground substation.Special cable from substation is received on sensor.Concrete grammar is: by the relevant position of the aviation socket of the top, notch alignment oxygen sensor left side of cable aviation plug, insert and screw, guarantee to connect reliable.
Principle of work of the present utility model is as follows:
After switching on power, send the voltage of 9-24V here, for whole system.Oxygen sensor directly contacts with the oxygen gas in environment in the mode of diffusion, oxygen concentration sensitive element adopts galvanochemistry polarogram diaphragm type oxygen electrode, and this oxygen electrode can be converted to the ultra-weak electronic signal that is proportional to tested oxygen concentration by the oxygen percentage composition in gas.Signal processing unit is exported oxygen electrode after ultra-weak electronic signal choosing row amplifies and is delivered to analog to digital converter, after single-chip microcomputer sampling, processing, send display circuit and output circuit, is shown the percentage composition of tested oxygen by charactron.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. an oxygen sensor, it is characterized in that, it comprises sensor fore shell, sensor back cover, handle, oxygen concentration sensitive element, signal processing unit, display circuit, analog to digital converter, single-chip microcomputer, output circuit, power supply, aviation plug, charactron and buzzer siren, described oxygen concentration sensitive element, signal processing unit, display circuit, analog to digital converter, single-chip microcomputer, display circuit, output circuit, power supply, charactron and buzzer siren are arranged in the cavity that described sensor fore shell and sensor back cover be combined into, described aviation plug is arranged on sensor fore shell.
2. a kind of oxygen sensor according to claim 1, is characterized in that, described oxygen concentration sensitive element adopts galvanochemistry polarogram diaphragm type oxygen electrode.
3. a kind of oxygen sensor according to claim 1, is characterized in that, described display circuit is made up of display window and display driver circuit, and described display window is made up of four eight sections of red charactrons.
4. a kind of oxygen sensor according to claim 1, is characterized in that, the commissure of the forward and backward shell of described sensor is provided with and can prevents dust, the rubber seal of waterproof is enclosed, and bottom is for being equipped with restriction diffusion type air chamber and oxygen concentration sensitive element probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745593.5U CN203595682U (en) | 2013-11-21 | 2013-11-21 | Oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745593.5U CN203595682U (en) | 2013-11-21 | 2013-11-21 | Oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595682U true CN203595682U (en) | 2014-05-14 |
Family
ID=50676551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745593.5U Expired - Fee Related CN203595682U (en) | 2013-11-21 | 2013-11-21 | Oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136997A (en) * | 2015-10-09 | 2015-12-09 | 扬中市南方矿用电器有限公司 | GYH25 oxygen sensor for mine |
-
2013
- 2013-11-21 CN CN201320745593.5U patent/CN203595682U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136997A (en) * | 2015-10-09 | 2015-12-09 | 扬中市南方矿用电器有限公司 | GYH25 oxygen sensor for mine |
| CN105136997B (en) * | 2015-10-09 | 2017-05-24 | 扬中市南方矿用电器有限公司 | GYH25 oxygen sensor for mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Panpan Inventor after: Lv Jinsong Inventor after: Lv Chunjiang Inventor after: Wu Li Inventor after: Tong Liantang Inventor after: Wang Kangjie Inventor before: Jiang Shanshan Inventor before: Lv Jinsong Inventor before: Lv Chunjiang Inventor before: Wu Li Inventor before: Tong Liantang Inventor before: Wang Kangjie |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20161121 |