CN203443914U - Multi-parameter gas tester - Google Patents
Multi-parameter gas tester Download PDFInfo
- Publication number
- CN203443914U CN203443914U CN201320554709.7U CN201320554709U CN203443914U CN 203443914 U CN203443914 U CN 203443914U CN 201320554709 U CN201320554709 U CN 201320554709U CN 203443914 U CN203443914 U CN 203443914U
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- China
- Prior art keywords
- chip microcomputer
- circuit
- electrochemical sensor
- power module
- digital signal
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Abstract
The utility model provides a multi-parameter gas tester which comprises a housing, a power supply module, an optically coupled circuit, an O2 electrochemical sensor, a CO electrochemical sensor, a CH4 catalytic combustion sensor, a single-chip microcomputer, a digital display and an alarm. The CH4 catalytic combustion sensor as well as the O2 electrochemical sensor and the CO electrochemical sensor is comprehensively integrated, so that the multi-functionalization and low power consumption of the gas tester are realized successfully, the multi-parameter gas tester has a relatively high economic benefit, and the application of the optically coupled circuit realizes the purpose of instant messaging of testers.
Description
Technical field
The utility model relates to a kind of Detection of Air Quality field, especially relates to a kind of multiparameter gas determinator.
Background technology
Portable gas detection technique is widely used in the detection to harmful gas etc., and can to detected gas hidden danger in air, make early warning exactly, the development life of this detection technique is different, application aspect the inspection of accident omen, elimination is also more and more extensive, its developing direction is microminiaturization and robotization, to realizing long term monitoring.The development of portable gas analyzer can be found leakage process in the early stage.Being difficult to of some disaster avoided.How effectively suppressing and monitoring and warning, for the accident having occurred, how rationally to utilize hi-tech means, accident is carried out effectively and controlled, reduce casualties and property loss, is the realistic problem that production safety gordian technique needs emphasis to solve.By the research to the early stage physics of accident, chemical property, gas detects monitoring can carry out suppressing before calamity effectively, makes the accident that may cause disaster by controlling in advance, protects personal safety simultaneously.By going out of passive type, rescuing the key that technology changes to the active Prevention Technique of a new generation is to take Study On Intelligent Monitoring Techniques as core.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of multiparameter gas determinator of measuring quickly and accurately Methane in Air, carbon monoxide and oxygen concentration and give alarm when gas concentration reaching higher limit.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of multiparameter gas determinator, comprises shell, power module, optically coupled circuit, O
2electrochemical sensor, CO electrochemical sensor, CH
4catalytic combustion sensor, single-chip microcomputer, digital indicator and warning horn;
Described power module comprises lithium battery, positive and negative electrode sheet, and the both positive and negative polarity of described lithium battery connects respectively described positive and negative electrode sheet, is each device power supply in analyzer;
Described optically coupled circuit one end connects the electrode film of described power module, the other end connects described single-chip microcomputer, using the positive and negative electrode sheet of described power module as tie point, carry out instant messaging with supporting calibration circuit, electric signal in calibration circuit is inputted in single-chip microcomputer after described optically coupled circuit is got rid of interference, and then single-chip microcomputer is calibrated;
Described O
2electrochemical sensor, CO electrochemical sensor and CH
4catalytic combustion sensor is powered by power module, produces electric signal respectively with corresponding gas generation electrochemical reaction or combustion reaction;
Described single-chip microcomputer first carries out A/D conversion by this electric signal, relation is carried out comparing calculation again and between the electrical signal intensity of storing in this single-chip microcomputer and gas concentration, calculated results shows with the form input digital indicator of digital signal, and contrast with alarm points concentration, comparing result is with in digital signal form input warning horn;
Described digital indicator shows different content according to described single-chip microcomputer to the different digital signal correspondence of its output;
Described warning horn comprises circuit for alarming, warning light and hummer, and described circuit for alarming is controlled the duty of warning light and hummer according to the output signal of described single-chip microcomputer.
As preferably, the utility model also comprises printing equipment, described printing equipment comprises print circuit and printing device, after described single-chip microcomputer has calculated, in described print circuit, input a digital signal, control printing device is started working, and result of calculation is inputted in printing device and is changed and print with digital signal form simultaneously.
As preferably, described warning light has a plurality of, is respectively different colors and is connected with circuit for alarming respectively, and according to the measured gas with various concentration of described single-chip microcomputer and then the unlike signal of output, the warning light of being controlled different colours by circuit for alarming is bright;
As preferably, described shell adopts ABS engineering plastics, in highly explosion-proof, has good corrosion resistance, sealing and higher physical and mechanical properties, and light weight volume is little, and the microminiaturized feature of tool;
Advantage and the good effect that the utlity model has are: adopt technique scheme, comprehensive integration catalytic combustion sensor and electrochemical sensor, successfully realized the multifunction of apparatus for determination of gas, and low-power consumption, has larger economic benefit; And the application of optically coupled circuit, has realized the instant messaging object between analyzer.
Accompanying drawing explanation
Fig. 1 is multiparameter gas determinator structured flowchart
In figure: 11, O
2electrochemical sensor 12, CO electrochemical sensor 13, CH
4catalytic combustion sensor 2, single-chip microcomputer 3, optically coupled circuit 4, digital indicator 51, circuit for alarming 52, warning light 53, hummer 6, power module 71, print circuit 72, printing device
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises shell, power module 6, optically coupled circuit 3, O
2electrochemical sensor 11, CO electrochemical sensor 12, CH
4catalytic combustion sensor 13, single-chip microcomputer 2, digital indicator 4, warning horn and printing equipment.
Shell adopts ABS engineering plastics.
Power module 6 comprises lithium battery, positive and negative electrode sheet, and the both positive and negative polarity of described lithium battery connects respectively described positive and negative electrode sheet, is each device power supply in analyzer.
Optically coupled circuit 3 one end connect the electrode film of power module 6, the other end connects single-chip microcomputer 2, using the positive and negative electrode sheet of power module 6 as tie point, carry out instant messaging with supporting calibration circuit, electric signal in calibration circuit is inputted in single-chip microcomputer 2 after optically coupled circuit 3 is got rid of interference, and then single-chip microcomputer 2 is calibrated.
O
2electrochemical sensor 11, CO electrochemical sensor 12 and CH
4catalytic combustion sensor 13 is powered by power module 6, produces electric signal respectively with corresponding gas generation electrochemical reaction or combustion reaction.
Single-chip microcomputer 2 first carries out A/D conversion by this electric signal, relation is carried out comparing calculation again and between the electrical signal intensity of these single-chip microcomputer 2 interior storages and gas concentration, calculated results shows with the form input digital indicator 4 of digital signal, and contrast with alarm points concentration, comparing result is with in digital signal form input warning horn.
Described digital indicator 4 shows different content according to described single-chip microcomputer 2 to the different digital signal correspondence of its output;
Warning horn comprises circuit for alarming 51, warning light 52 and hummer 53, and circuit for alarming 51 is controlled the duty of warning light 52 and hummer 53 according to the output signal of single-chip microcomputer 2.
Printing equipment comprises print circuit 71 and printing device 72, after single-chip microcomputer 2 has calculated, in print circuit 71, input a digital signal, control printing device 72 and start working, result of calculation is inputted in printing device 72 and changed and print with digital signal form simultaneously.
In the present embodiment, the utility model types of spare parts used is as follows:
Before the utility model work, first single-chip microcomputer 2 is returned to zero; Pass into again corresponding calibrating gas, single-chip microcomputer 2 is calibrated, when the analyzer of need calibrations is more, can be by the positive and negative electrode sheet with the supporting calibration circuit of analyzer access analyzer, be connected and carry out instant messaging with optically coupled circuit 3, electric signal in calibration circuit is inputted in single-chip microcomputer 2 after optically coupled circuit 3 is got rid of interference, and then single-chip microcomputer 2 is calibrated; Finally single-chip microcomputer 2 is carried out to the setting of alarm points gas concentration.
The utility model is put into environment to be detected, this analyzer is started the O2 in ambient gas, CO and CH4 concentration detect, tested composition in gas and corresponding sensor generation electrochemical reaction or combustion reaction before this, and the speed degree of reaction is inputted to single-chip microcomputer 2 with the form of electric signal, in single-chip microcomputer 2, through A/D conversion, simulating signal is converted to after digital signal, relation is carried out comparing calculation again and between the electrical signal intensity of these single-chip microcomputer 2 interior storages and gas concentration, calculated results shows with the form input digital indicator 4 of digital signal, and contrast with alarm points concentration, comparing result is with in digital signal form input warning horn, when the gas concentration recording is during higher than the set concentration of alarm points, a kind of signal of single-chip microcomputer 2 output, circuit for alarming 51 lights according to this signal controlling warning light 52 and hummer 53 sounds the alarm, when concentration that the gas concentration recording arranges lower than alarm points, the another kind of signal of single-chip microcomputer 2 output, circuit for alarming 51 does not work according to this signal controlling warning light 52 and hummer 53 does not sound the alarm yet.
After detection completes, single-chip microcomputer 2, to a kind of digital signal of print circuit 71 output, is controlled printing device 72 by print circuit 71 and is started working, and in the form input printing device 72 with digital signal, makes this equipment be changed and print measurement result.
Above embodiment has been described in detail the utility model, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (4)
1. multiparameter gas determinator, is characterized in that: comprise shell, power module (6), optically coupled circuit (3), O
2electrochemical sensor (11), CO electrochemical sensor (12), CH
4catalytic combustion sensor (13), single-chip microcomputer (2), digital indicator (4) and warning horn;
Described power module (6) comprises lithium battery and positive and negative electrode sheet, and the both positive and negative polarity of described lithium battery connects respectively described positive and negative electrode sheet, is each device power supply in analyzer;
Described optically coupled circuit (3) one end connects the electrode film of described power module (6), the other end connects described single-chip microcomputer (2), using the positive and negative electrode sheet of described power module (6) as tie point, carry out instant messaging with supporting calibration circuit, electric signal in calibration circuit is inputted in single-chip microcomputer (2) after described optically coupled circuit (3) is got rid of interference, and then single-chip microcomputer (2) is calibrated;
Described O
2electrochemical sensor (11), CO electrochemical sensor (12) and CH
4catalytic combustion sensor (13), by power module (6) power supply, produces electric signal with corresponding gas generation electrochemical reaction or combustion reaction respectively;
Described single-chip microcomputer (2) first carries out A/D conversion by this electric signal, again and this single-chip microcomputer (2) in storage electrical signal intensity and gas concentration between relation carry out comparing calculation, calculated results shows with the form input digital indicator (4) of digital signal, and contrast with alarm points concentration, comparing result is with in digital signal form input warning horn;
Described digital indicator (4) shows different content according to described single-chip microcomputer (2) to the different digital signal correspondence of its output;
Described warning horn comprises circuit for alarming (51), warning light (52) and hummer (53), and described circuit for alarming (51) is controlled the duty of warning light (52) and hummer (53) according to the output signal of described single-chip microcomputer (2).
2. multiparameter gas determinator according to claim 1, it is characterized in that: also comprise printing equipment, described printing equipment comprises print circuit (71) and printing device (72), after described single-chip microcomputer (2) has calculated, in described print circuit (71), input a digital signal, control printing device (72) and start working, result of calculation is inputted in printing device (72) and changed and print with digital signal form simultaneously.
3. multiparameter gas determinator according to claim 1, is characterized in that: described warning light (52) has a plurality of, is respectively different colors and is connected with circuit for alarming (51) respectively.
4. multiparameter gas determinator according to claim 1, is characterized in that: described shell adopts ABS engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554709.7U CN203443914U (en) | 2013-09-05 | 2013-09-05 | Multi-parameter gas tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554709.7U CN203443914U (en) | 2013-09-05 | 2013-09-05 | Multi-parameter gas tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443914U true CN203443914U (en) | 2014-02-19 |
Family
ID=50094952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320554709.7U Expired - Fee Related CN203443914U (en) | 2013-09-05 | 2013-09-05 | Multi-parameter gas tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203443914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108741369A (en) * | 2018-06-29 | 2018-11-06 | 上海美桥科材料科技有限公司 | It can intellectual monitoring be inflammable and explosive and the safety cap of toxic and harmful gas |
| CN110779966A (en) * | 2019-11-26 | 2020-02-11 | 华北电力科学研究院有限责任公司 | Light gas alarm characteristic gas detection method and device |
-
2013
- 2013-09-05 CN CN201320554709.7U patent/CN203443914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108741369A (en) * | 2018-06-29 | 2018-11-06 | 上海美桥科材料科技有限公司 | It can intellectual monitoring be inflammable and explosive and the safety cap of toxic and harmful gas |
| CN110779966A (en) * | 2019-11-26 | 2020-02-11 | 华北电力科学研究院有限责任公司 | Light gas alarm characteristic gas detection method and device |
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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: 20140219 Termination date: 20160905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |