CN2713470Y - Integrative multifunctional quick detector for harmful gas - Google Patents
Integrative multifunctional quick detector for harmful gas Download PDFInfo
- Publication number
- CN2713470Y CN2713470Y CN 200420029053 CN200420029053U CN2713470Y CN 2713470 Y CN2713470 Y CN 2713470Y CN 200420029053 CN200420029053 CN 200420029053 CN 200420029053 U CN200420029053 U CN 200420029053U CN 2713470 Y CN2713470 Y CN 2713470Y
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- China
- Prior art keywords
- gas
- harmful gas
- fast detecting
- detecting instrument
- circuit
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Abstract
The utility model discloses an integrative multifunctional quick detector for harmful gas, comprising a gas sensor, a signal regulating circuit, a display, a data processing circuit, four types of sensors and a box body. The four types of gas sensors are arranged at the box body which is provided with a gas sampling pump; the signal conditioning circuit is arranged for receiving and magnifying the electric voltage and the current signal output by the four types of gas sensors to convert to digit signal, and regulates null point and measuring range and compensates for instrumental shift. The data processing circuit is arranged for accepting digit signal output by multiple signal regulating circuit and proceeds to linear processing to deliver the signal into a display and an EPROM memorizer for storing. The utility model can at one time detect four types of gas concentration and finish sound, light and digit display, having the advantages of small-sized, portable and integrated association, storage and print of detection result, strong anti-interference ability and good stability; thereby the utility model is suitable for quickly testing frequent harmful gas on the air.
Description
Technical field
The utility model relates to a kind of harmful gas fast detecting instrument, in particular for detecting the fast detecting instrument of carbon monoxide, sulphuric dioxide, sulfuretted hydrogen and four kinds of gases of nitrogen dioxide.
Background technology
The people keeps its life by air, water and food.The people can not have a meal, not drink water in several days, but its necessary air is required very tight, a few minutes no breathing will be dead, and the gas of long-term aspiration contamination also is huge to health effects.Monitoring to principal ingredient in the air is present environmental protection, the extremely important content of pharmaceutical sanitary field, especially in the room, environment such as public place, workshop air, atmosphere is to the vital SO of health
2, NO
2, CO, H
2The fast monitored of four kinds of gases of S is significant.It can raise at these harmful gas concentrations and be above standard, and adopts concrete numeral to show health when influential, so that the prompting field staff takes corresponding measure, ensures health and safe escape scene, avoids accident to take place.
Generally single harmful gas detector in the prior art, as CO, NOx, SO
2Deng, be used for the environmental monitoring field more, as coal mining, culvert construction, household gas leakage etc., its shortcoming is that project is single, and complicated operation, is difficult to use when unattended.
The utility model content
Technical problem to be solved in the utility model is, overcome above-mentioned deficiency of the prior art, a kind of integrated multi-functional harmful gas fast detecting instrument that can detect four kinds of gas concentrations is provided, and it can disposablely be measured four kinds of gas concentrations and finish sound, light and numeral and show.
For solving the problems of the technologies described above, a kind of integrated multi-functional harmful gas fast detecting instrument of the present utility model comprises gas sensor, signal adjustment circuit, display and casing.Described integrated multi-functional harmful gas fast detecting instrument is provided with data processing circuit and four kinds of sensors, and four kinds of gas sensors are arranged in the casing, are provided with gas samping pump in the casing; Described signal adjustment circuit is provided with A/D converter, and signal adjustment circuit is used to receive, amplify the voltage and current signal of four kinds of gas sensors outputs, is converted into digital signal, and regulate zero point, measurement range and instrument drift is recompensed; Described data processing circuit is the multichannel data treatment circuit, the multichannel data treatment circuit is provided with eprom memory, data processing circuit is used to receive multiple signals to be adjusted the digital signal of circuit output and it is carried out linear process, sends into display and sends into the eprom memory storage.
Described four kinds of gas sensors are respectively carbon monoxide, sulphuric dioxide, sulfuretted hydrogen and nitrogen dioxide sensor.Described signal adjustment circuit is provided with the gauge tap of selecting to detect separately a kind of gas content.Described display is made up of the electroluminescent diode of the LCD that shows each gas content and each gas gaseous species of demonstration.Described casing is portable casing.Described data processing circuit is connected with printer by printer interface.
Compared with prior art, the utlity model has following beneficial effect: (1) is of the present utility model can disposablely measure four kinds of gas concentrations and finish sound, light and numeral demonstration; (2) two kinds of power supplys of AC and DC be can adopt, range of application and usefulness thereof enlarged; (3) possess miniature portable, integrated combination, testing result is stored and prints, strong anti-interference performance, good stability are fit to that common harmful gas uses in the fast detecting air; (4) experimental result shows, the utility model is to CO, NO
2, SO
2, H
2The mensuration of indexs such as S is sensitive reliable, with standard method or external Instrument measuring there was no significant difference as a result, temperature 18.2～36.5 ℃, relative humidity between 37.9%～79.8% to not obviously influence of measurement result.
Description of drawings
Fig. 1 is the structure principle chart of the utility model integrated multi-functional harmful gas fast detecting instrument;
Fig. 2 is the model machine synoptic diagram of the utility model integrated multi-functional harmful gas fast detecting instrument.
Reference numeral: 1 display, 2 pilot lamp 3 are printed 4 sampling pumps
The control of 5 handles, 6 duties is also closed
Embodiment
Below in conjunction with embodiment the utility model is described in detail.
As shown in Figure 1, integrated multi-functional harmful gas fast detecting instrument of the present utility model comprises gas sensor, signal adjustment circuit, display and casing.Integrated multi-functional harmful gas fast detecting instrument also is provided with data processing circuit and four kinds of sensors, four kinds of gas sensors are respectively carbon monoxide, sulphuric dioxide, sulfuretted hydrogen and nitrogen dioxide sensor, four kinds of gas sensors are arranged in the casing, are provided with gas samping pump in the casing.Casing is portable casing.Signal adjustment circuit is provided with A/D converter, and signal adjustment circuit is used to receive, amplify the voltage and current signal of four kinds of gas sensors outputs, is converted into digital signal, and regulate zero point, measurement range and instrument drift is recompensed.Signal adjustment circuit is provided with the gauge tap of selecting to detect separately a kind of gas content.Data processing circuit is the multichannel data treatment circuit, the multichannel data treatment circuit is provided with eprom memory, data processing circuit is used to receive multiple signals to be adjusted the digital signal of circuit output and it is carried out linear process, sends into display and sends into the eprom memory storage.Data processing circuit is connected with printer by printer interface.Display is made up of the electroluminescent diode of the LCD that shows each gas content and each gas gaseous species of demonstration.
As shown in Figure 2, the instrument front is provided with the digital indicator of tested gas concentration and four pilot lamp of tested gaseous species, indicates SO respectively
2, NO
2, H
2S and CO, its top is equipped with to detect and is selected gauge tap, has determined that instrument is in the touring duty that detects or detect certain gas content separately.The zero point and the full scale that are respectively equipped with four kinds of harmful gases simultaneously in the left and right sides are proofreaied and correct button.
Integrated multi-functional harmful gas fast detecting instrument of the present utility model can detect carbon monoxide in the air (CO), sulphuric dioxide (SO
2), sulfuretted hydrogen (H
2S) and nitrogen dioxide (NO
2) four kinds of gas concentrations and the multi-functional harmful gas of integrated small that testing result stores and prints examined instrument fast, to reach the purpose of common harmful gas in the fast detecting air.Sample through gas samping pump, gas sensor detects tested gas, produce corresponding electric signal, signals collecting is converted to standard signal after amplifying, send into analog to digital conversion circuit one by one, read, after the program computational analysis by central processing unit, net result is sent to demonstration, and testing result is stored and prints.The integrated multi-functional harmful gas fast detecting instrument the key technical indexes of development: volume is 150mm * 30mm * 200mm; Working temperature is-20 ℃～+ 50 ℃; The CO measurement range is 0～625mg/m
3, minimum detectability is 0.1mg/m
3SO
2Measurement range is 0～28mg/m
3, minimum detectability is 0.01mg/m
3H
2The S measurement range is 0～40mg/m
3, minimum detectability is 0.08mg/m
3NO
2Measurement range is 0～41mg/m
3, minimum detectability is 0.2mg/m
3Laboratory and site test results show, compare the mensuration there was no significant difference with the commercially available instrument of national Specification.The integrated multi-functional harmful gas fast detecting instrument of development possesses miniature portable, integrated combination, testing result is stored and prints, and strong anti-interference performance, good stability are fit to common harmful gas use in the fast detecting air.
Applicable cases: 8 officers and men move into 2 10m of certain people's air defense fortification
2Duty room amounts to 8 days, uses the integrated multi-functional harmful gas fast detecting instrument and the standardized equipment of development to monitor gas on-site concentration simultaneously.Experimental result is: CO: fast detecting instrument 4.8 ± 3.6mg/m
3, GXH-3011A:4.2 ± 2.8mg/m
3(n=25, p); SO
2: fast detecting instrument: 0.58 ± 0.07mg/m
3, INTERSCAN-SO
2: 0.01 ± 0.01mg/m
3(n=25, p); NO
2: fast detecting instrument: 0.19 ± 0.04mg/m
3, INTERSCAN-NO
2: 0.02 ± 0.01mg/m
3(n=25, p); H
2S: fast detecting instrument: 0.25 ± 0.16mg/m
3, INTERSCAN-H
2S:0.02 ± 0.01mg/m
3The above results shows that integrated multi-functional harmful gas fast detecting instrument is to CO, H
2S, SO
2, NO
2Sensitive reliable etc. the mensuration of index, with external Instrument measuring there was no significant difference as a result.In addition, also tested the tunnel temperature 18.2～36.5 ℃, relative humidity between 37.9%～79.8% to not obviously influence of measurement result.
Claims (6)
1, a kind of integrated multi-functional harmful gas fast detecting instrument, comprise gas sensor, signal adjustment circuit, display and casing, it is characterized in that, described integrated multi-functional harmful gas fast detecting instrument is provided with data processing circuit and four kinds of sensors, four kinds of gas sensors are arranged in the casing, are provided with gas samping pump in the casing; Described signal adjustment circuit is provided with A/D converter, and signal adjustment circuit is used to receive, amplify the voltage and current signal of four kinds of gas sensors outputs, is converted into digital signal, and regulate zero point, measurement range and instrument drift is recompensed; Described data processing circuit is the multichannel data treatment circuit, the multichannel data treatment circuit is provided with eprom memory, data processing circuit is used to receive multiple signals to be adjusted the digital signal of circuit output and it is carried out linear process, sends into display and sends into the eprom memory storage.
2, a kind of integrated multi-functional harmful gas fast detecting instrument according to claim 1 is characterized in that described four kinds of gas sensors are respectively carbon monoxide, sulphuric dioxide, sulfuretted hydrogen and nitrogen dioxide sensor.
3, a kind of integrated multi-functional harmful gas fast detecting instrument according to claim 1 is characterized in that, described signal adjustment circuit is provided with the gauge tap of selecting to detect separately a kind of gas content.
4, a kind of integrated multi-functional harmful gas fast detecting instrument according to claim 1 is characterized in that, described display is made up of the electroluminescent diode of the LCD that shows each gas content and each gas gaseous species of demonstration.
5, a kind of integrated multi-functional harmful gas fast detecting instrument according to claim 1 is characterized in that described casing is portable casing.
6, a kind of integrated multi-functional harmful gas fast detecting instrument according to claim 1 is characterized in that described data processing circuit is connected with printer by printer interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029053 CN2713470Y (en) | 2004-05-28 | 2004-05-28 | Integrative multifunctional quick detector for harmful gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029053 CN2713470Y (en) | 2004-05-28 | 2004-05-28 | Integrative multifunctional quick detector for harmful gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713470Y true CN2713470Y (en) | 2005-07-27 |
Family
ID=34871084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420029053 Expired - Fee Related CN2713470Y (en) | 2004-05-28 | 2004-05-28 | Integrative multifunctional quick detector for harmful gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713470Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116751A (en) * | 2010-12-16 | 2011-07-06 | 北京华科仪电力仪表研究所 | Intelligent combustible/toxic gas sensor |
| CN101419212B (en) * | 2008-12-08 | 2012-10-17 | 浙江大学 | Bird egg freshness detection device and method by utilizing volatile matter |
| CN101419213B (en) * | 2008-12-08 | 2012-11-07 | 浙江大学 | Detection method for bird egg crack by utilizing volatile matter |
| CN103376252A (en) * | 2012-04-18 | 2013-10-30 | 北京市劳动保护科学研究所 | Portable gas detector based on multi-detector-tube color information identification |
| CN104849185A (en) * | 2014-02-13 | 2015-08-19 | 淄博职业学院 | Air pollution index detection display system based on gas sensor |
| CN109210408A (en) * | 2017-07-07 | 2019-01-15 | 深圳市海洋王照明工程有限公司 | A kind of portable multifunctional lighting device |
| US10282964B2 (en) | 2017-01-16 | 2019-05-07 | Winbond Electronics Corp. | Gas detecting device |
-
2004
- 2004-05-28 CN CN 200420029053 patent/CN2713470Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419212B (en) * | 2008-12-08 | 2012-10-17 | 浙江大学 | Bird egg freshness detection device and method by utilizing volatile matter |
| CN101419213B (en) * | 2008-12-08 | 2012-11-07 | 浙江大学 | Detection method for bird egg crack by utilizing volatile matter |
| CN102116751A (en) * | 2010-12-16 | 2011-07-06 | 北京华科仪电力仪表研究所 | Intelligent combustible/toxic gas sensor |
| CN103376252A (en) * | 2012-04-18 | 2013-10-30 | 北京市劳动保护科学研究所 | Portable gas detector based on multi-detector-tube color information identification |
| CN104849185A (en) * | 2014-02-13 | 2015-08-19 | 淄博职业学院 | Air pollution index detection display system based on gas sensor |
| US10282964B2 (en) | 2017-01-16 | 2019-05-07 | Winbond Electronics Corp. | Gas detecting device |
| CN109210408A (en) * | 2017-07-07 | 2019-01-15 | 深圳市海洋王照明工程有限公司 | A kind of portable multifunctional lighting device |
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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 |