CN201716264U - Non-dispersive infrared optical sulfur hexafluoride gas concentration sensor - Google Patents
Non-dispersive infrared optical sulfur hexafluoride gas concentration sensor Download PDFInfo
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- CN201716264U CN201716264U CN 201020248189 CN201020248189U CN201716264U CN 201716264 U CN201716264 U CN 201716264U CN 201020248189 CN201020248189 CN 201020248189 CN 201020248189 U CN201020248189 U CN 201020248189U CN 201716264 U CN201716264 U CN 201716264U
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- infrared light
- sulfur hexafluoride
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Abstract
The utility model relates to a non-dispersive infrared optical sulfur hexafluoride gas concentration sensor, a unit doublet thermopile infrared detector, an environmental temperature acquisition unit for acquiring temperature drift and an RS485 interface communication unit for outputting sulfur hexafluoride concentration value are respectively connected with the input end of an embedded processing unit, the output end of the embedded processing unit is connected with an infrared light source constant current pulse driving unit, the output end of the infrared light source constant current pulse driving unit is connected with an infrared light source, the output end of the infrared light source is connected with a coated reflecting mirror, and the coated reflecting mirror, the infrared light source and the unit doublet thermopile infrared detector are arranged in gold-plated gas. The non-dispersive infrared optical sulfur hexafluoride gas concentration sensor can quantitatively display the concentration of sulfur hexafluoride in the current monitored environment; meanwhile, the electrically modulated light source is adopted to reduce the cost; in addition, the measurement precision can achieve 10PPM; and the way of the parabolical reflecting mirror is further adopted, so that an expensive infrared optical lens and a coated window are eliminated.
Description
Technical field
The utility model relates to a kind of gas-detecting device, especially a kind of on-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor.
Background technology
The widespread use on power equipment along with 6IS (combined electrical apparatus) and SF6 switch, the leakage of SF6 gas happens occasionally, and is one of main potential safety hazard that causes the high voltage substation operation, and the life security to the maintainer threatens simultaneously.The concentration of the SF6 gas of monitoring GIS chamber is the requirement of electric power safety operating standard, but present concentration of sulfur hexafluoride sensor accuracy is poor, easily wrong report, and serviceable life is short, can't quantitatively export, and can't play forewarning function.
The utility model content
The technical problems to be solved in the utility model is: in order to overcome the above-mentioned middle problem that exists, a kind of precision height is provided, is difficult for wrong report and long service life, and have the on-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor of quantitative output and arrival forewarning function.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of on-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor, by the double base thermopile IR detector, the embedded processing unit, the temperature collection unit, RS485 interface communication unit, infrared light supply constant-current pulse driver element, infrared light supply, metallic-membrane plating reflector and gold-plated air chamber are formed, the double base thermopile IR detector, the temperature collection unit of collecting temperature drift, the RS485 interface communication unit of output concentration of sulfur hexafluoride value is connected with the input end of embedded processing unit respectively, the output terminal of embedded processing unit is connected with infrared light supply constant-current pulse driver element, the output terminal of infrared light supply constant-current pulse driver element is connected with infrared light supply, the output terminal of infrared light supply is connected with metallic-membrane plating reflector, metallic-membrane plating reflector, infrared light supply and double base thermopile IR detector are arranged in the gold-plated air chamber, embedded processing unit controls infrared light supply constant-current pulse driver element is realized the electrical modulation of infrared light supply, the infrared light supply of pulse is transmitted on the metallic-membrane plating reflector, reflection ray focuses on the pixel of double base thermopile IR detector, the two-way detector signal of output is through signal processing circuit filtering, amplify and enter into embedded processing unit A/D collection, gather the temperature drift of current environmental temperature compensation sensor simultaneously, utilize Bill-youth Bai Dinglv to calculate the concentration of gas to be measured the data of gathering, utilize the concentration value of RS485 interface communication unit output sulfur hexafluoride.
In order to save cost, described metallic-membrane plating reflector also can be parabolic reflector.
Described double base thermopile IR detector is the detector of reference light and sulfur hexafluoride gas sensitive wave length.
The beneficial effects of the utility model are on-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor of the present utility model, the concentration of sulfur hexafluoride with the current monitoring of environmental of quantitative demonstration; Adopt the electrical modulation light source simultaneously, reduced cost; Measuring accuracy reaches 10PPM in addition; And adopt the mode of parabolic reflector, saved expensive infrared optics lens and plated film window.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structured flowchart of the present utility model.
1. double base thermopile IR detectors among the figure, 2. embedded processing unit, 3. temperature collection unit, 4.RS485 interface communication unit, 5. infrared light supply constant-current pulse driver element, 6. infrared light supply, 7. metallic-membrane plating reflector, 8. gold-plated air chamber.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
On-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor as shown in Figure 1, it is by double base thermopile IR detector 1, embedded processing unit 2, temperature collection unit 3, RS485 interface communication unit 4, infrared light supply constant-current pulse driver element 5, infrared light supply 6, metallic-membrane plating reflector 7 and gold-plated air chamber 8 are formed, double base thermopile IR detector 1, the temperature collection unit 3 of collecting temperature drift, the RS485 interface communication unit 4 of output concentration of sulfur hexafluoride value is connected with the input end of embedded processing unit 2 respectively, the output terminal of embedded processing unit 2 is connected with infrared light supply constant-current pulse driver element 5, the output terminal of infrared light supply constant-current pulse driver element 5 is connected with infrared light supply 6, the output terminal of infrared light supply 6 is connected with metallic-membrane plating reflector 7, metallic-membrane plating reflector 7, infrared light supply 6 and double base thermopile IR detector 1 are arranged in the gold-plated air chamber 8, and double base thermopile IR detector 1 is the detector of reference light and sulfur hexafluoride gas sensitive wave length.
Principle of work of the present utility model: at first the infrared light supply 6 by pulse is transmitted on the metallic-membrane plating reflector 7, reflection ray focuses on the pixel of double base thermopile IR detector 1, the two-way detector signal of output is through signal processing circuit filtering, amplify and enter into embedded processing unit 2A/D collection, gather the temperature drift of current environmental temperature collecting unit 3 simultaneously, metallic-membrane plating reflector 7, infrared light supply 6 and double base thermopile IR detector 1 are installed in the gold-plated air chamber 8, and the electrical modulation that infrared light supply constant-current pulse driver element 5 is realized infrared light supply 6 is also controlled in embedded processing unit 2 simultaneously, utilize the concentration value of RS485 interface communication unit 4 output sulfur hexafluorides, utilize Bill-youth Bai Dinglv to calculate the concentration of gas to be measured the data of gathering.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the instructions, must determine its technical scope according to the claim scope.
Claims (3)
1. on-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor, it is characterized in that: by double base thermopile IR detector (1), embedded processing unit (2), temperature collection unit (3), RS485 interface communication unit (4), infrared light supply constant-current pulse driver element (5), infrared light supply (6), metallic-membrane plating reflector (7) and gold-plated air chamber (8) are formed, described double base thermopile IR detector (1), the temperature collection unit (3) of collecting temperature drift, the RS485 interface communication unit (4) of output concentration of sulfur hexafluoride value is connected with the input end of embedded processing unit (2) respectively, the output terminal of described embedded processing unit (2) is connected with infrared light supply constant-current pulse driver element (5), the output terminal of infrared light supply constant-current pulse driver element (5) is connected with infrared light supply (6), the output terminal of infrared light supply (6) is connected with metallic-membrane plating reflector (7), metallic-membrane plating reflector (7), infrared light supply (6) and double base thermopile IR detector (1) are arranged in the gold-plated air chamber (8).
2. on-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor according to claim 1, it is characterized in that: described metallic-membrane plating reflector (7) also can be parabolic reflector.
3. on-dispersive formula infrared optics sulfur hexafluoride gas concentration sensor according to claim 1 is characterized in that: described double base thermopile IR detector (1) is the detector of reference light and sulfur hexafluoride gas sensitive wave length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020248189 CN201716264U (en) | 2010-07-06 | 2010-07-06 | Non-dispersive infrared optical sulfur hexafluoride gas concentration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020248189 CN201716264U (en) | 2010-07-06 | 2010-07-06 | Non-dispersive infrared optical sulfur hexafluoride gas concentration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201716264U true CN201716264U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020248189 Expired - Fee Related CN201716264U (en) | 2010-07-06 | 2010-07-06 | Non-dispersive infrared optical sulfur hexafluoride gas concentration sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076301A (en) * | 2013-01-15 | 2013-05-01 | 南京麟派电力工程有限公司 | Infrared-based SF6 (sulfur hexafluoride) gas decomposition product detecting device |
| CN103575655A (en) * | 2012-07-31 | 2014-02-12 | 河南汉威电子股份有限公司 | Infrared gas sensor |
| CN103674882A (en) * | 2013-12-24 | 2014-03-26 | 北京航天测控技术有限公司 | Non-dispersive infrared light gas detection system |
| CN107367478A (en) * | 2017-07-19 | 2017-11-21 | 常州合众电气有限公司 | Non-dispersive infrared optical sulfur hexafluoride gas concentration sensor |
| US10161859B2 (en) | 2016-10-27 | 2018-12-25 | Honeywell International Inc. | Planar reflective ring |
-
2010
- 2010-07-06 CN CN 201020248189 patent/CN201716264U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575655A (en) * | 2012-07-31 | 2014-02-12 | 河南汉威电子股份有限公司 | Infrared gas sensor |
| CN103575655B (en) * | 2012-07-31 | 2015-12-09 | 河南汉威电子股份有限公司 | A kind of infrared gas sensor |
| CN103076301A (en) * | 2013-01-15 | 2013-05-01 | 南京麟派电力工程有限公司 | Infrared-based SF6 (sulfur hexafluoride) gas decomposition product detecting device |
| CN103076301B (en) * | 2013-01-15 | 2015-07-08 | 江苏麟派电力科技有限公司 | Infrared-based SF6 (sulfur hexafluoride) gas decomposition product detecting device |
| CN103674882A (en) * | 2013-12-24 | 2014-03-26 | 北京航天测控技术有限公司 | Non-dispersive infrared light gas detection system |
| US10161859B2 (en) | 2016-10-27 | 2018-12-25 | Honeywell International Inc. | Planar reflective ring |
| CN107367478A (en) * | 2017-07-19 | 2017-11-21 | 常州合众电气有限公司 | Non-dispersive infrared optical sulfur hexafluoride gas concentration sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20130706 |