CN201867368U - Gas sensing probe embedded with signal processing circuit - Google Patents
Gas sensing probe embedded with signal processing circuit Download PDFInfo
- Publication number
- CN201867368U CN201867368U CN2010205896056U CN201020589605U CN201867368U CN 201867368 U CN201867368 U CN 201867368U CN 2010205896056 U CN2010205896056 U CN 2010205896056U CN 201020589605 U CN201020589605 U CN 201020589605U CN 201867368 U CN201867368 U CN 201867368U
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- sensor element
- gas sensor
- gas sensing
- signal
- gas
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Abstract
The utility model discloses a gas sensing probe embedded with a signal processing circuit. The gas sensing probe comprises a gas sensing element, a gas sensing element mounting board and outer casing, wherein the gas sensing element is mounted on the gas sensing element mounting board and disposed in an inner cavity of the outer casing. The gas sensing probe is characterized in that a signal processing board is arranged in the inner cavity of the outer casing, the signal processing circuit and a lead are arranged on the signal processing board, the signal processing board and the gas sensing element mounting board are superposed and electrically connected with each other, the outer casing is provided with a gas inlet, and the gas inlet is communicated with the inner cavity of the outer casing and opposite to the gas sensing element. Since the gas sensing element mounting board and the signal processing board are arranged in the outer casing simultaneously and an electrothermal device is arranged in the gas sensing probe, the gas sensing probe is convenient in use and low in cost, production efficiency is increased while maintenance cost is reduced, and accordingly the gas sensing probe is quite applicable to downhole of domestic coalmines.
Description
Technical field
The utility model relates to sensing probe, is specifically related to a kind of gas sensing probe of built-in signal treatment circuit.
Background technology
The infrared gas detection technique is a kind of advanced person's of getting up of development in recent years a gas analysis technology, because it has characteristics such as accuracy of detection height, gas-selectively are good, is widely used in fields such as petrochemical complex, mining.
Infrared gas detects from element acquisition primary light signal and need handle and calculate through complicated signal circuit to drawing final gas concentration, for making things convenient for circuit design, usually signal processing circuit and instrument circuitry are designed together, gas detecting element encapsulates separately and by lead-in wire signal is inserted treatment circuit.Because the infrared-gas sensitive element is output as weak signal and the performance individual difference is very big, therefore the signal processing circuit that needs separately of every element cooperates with it, as specific enlargement factor, temperature coefficient etc., produces and maintenance has caused great difficulty thereby give.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of gas sensing probe of built-in signal treatment circuit.
In order to address the above problem, according to the technical solution of the utility model, a kind of gas sensing of built-in signal treatment circuit probe comprises gas sensor element, gas sensor element installing plate, shell; Wherein, gas sensor element is installed on the gas sensor element peace installing plate and is arranged in the inner chamber of shell, be characterized in: in the inner chamber of shell, also be provided with signal-processing board, signal-processing board is provided with signal processing circuit and lead-in wire, signal-processing board is with the overlapping setting of gas sensor element installing plate and be electrically connected, shell is provided with air intake opening, and air intake opening communicates with the inner chamber of shell and be relative with gas sensor element.
The gas sensing of a kind of built-in signal treatment circuit described in the utility model probe is owing to be provided with gas sensor element installing plate and signal-processing board simultaneously in the enclosure, and easy to use, cost is low, enhances productivity and reduces maintenance difficulty.
A kind of preferred version according to the gas sensing of a kind of built-in signal treatment circuit described in the utility model probe, signal-processing board overlaps the top of gas sensor element installing plate, the gas sensor element installing plate is positioned at the top of gas sensor element, air intake opening is arranged on the bottom of shell, between the inner chamber of shell and air intake opening, be provided with boss, between boss and gas sensor element packing ring is set, gas sensor element is spacing by boss.
According to a kind of preferred version that the gas sensing of a kind of built-in signal treatment circuit described in the utility model is popped one's head in, described signal processing circuit comprises weak signal extraction and amplifying circuit.
According to a kind of preferred version of the gas sensing of a kind of built-in signal treatment circuit described in the utility model probe, at the outer surface of gas sensor element heating is set, heating is installed on the installing plate by pin.Heating is set makes gas sensor element can keep higher temperature, thereby can avoid gas sensor element internal optics surface sweating under high humidity environment, improved the gas sensor element accuracy of detection.
According to a kind of preferred version that the gas sensing of a kind of built-in signal treatment circuit described in the utility model is popped one's head in, heating is metallic ceramics heating element (being called for short MCH).
The beneficial effect of the gas sensing probe of a kind of built-in signal treatment circuit described in the utility model is: the utility model is owing to be arranged on infrared sensing element installing plate and signal-processing board in the sensor outer housing simultaneously, easy to use, cost is low, enhances productivity and reduces maintenance difficulty; Simultaneously,, heating is set makes the sensor element of sensor can keep higher temperature, thereby can avoid sensing element internal optics surface sweating under high humidity environment, improved accuracy of detection owing to be provided with heating at the outside surface of gas sensor element; The utility model is fit to the China's coal-mine down-hole very much to be used, and has great economic benefit and social benefit.
Description of drawings
Fig. 1 is the structural representation of integrated infrared methane sensor described in the utility model.
Embodiment
Referring to Fig. 1, a kind of gas sensing of built-in signal treatment circuit probe,
Constitute by gas sensor element 1, gas sensor element installing plate 2, signal-processing board 11, shell 4, heating 3, signal processing circuit; Wherein, gas sensor element 1 is installed on the gas sensor element peace installing plate 2, at the outer surface of gas sensor element 1 heating 3 is set, and heating 3 is installed on the installing plate 2 by pin 9; Wherein, heating 3 can be selected metallic ceramics heating element (being called for short MCH) for use; Signalization treatment circuit and lead-in wire 5 on signal-processing board 11, signal processing circuit comprises weak signal extraction and amplifying circuit; With gas sensor element installing plate 2 with signal-processing board 11 overlapping settings and be electrically connected, again gas sensor element 1, gas sensor element installing plate 2, heating 3, signal-processing board 11 and signal processing circuit all are arranged in the inner chamber of shell 3, air intake opening 8 is set on shell 4, and air intake opening 8 communicates with the inner chamber of shell 4 and is relative with gas sensor element 1.
In specific embodiment, signal-processing board 11 overlaps the top of gas sensor element installing plate 2, gas sensor element installing plate 2 is positioned at the top of gas sensor element 1, air intake opening 8 is arranged on the bottom of shell 4, between the inner chamber of shell 4 and air intake opening 8, be provided with boss 7, between boss 7 and gas sensor element 1 packing ring 6 is set, gas sensor element 1 is spacing by boss 7; And in the inner chamber of shell 4 and be positioned at signal-processing board 11 above age hardening casting material 10 is set, age hardening casting material 10 is sealed in gas sensor element installing plate 2, gas sensor element 1, heating 3, signal-processing board 11 and signal processing circuit in the shell 4, and age hardening casting material 10 can adopt epoxy resin, polyurethane etc.; Signal-processing board 11 is connected with external instrument by lead-in wire 5.
Claims (5)
1. the gas sensing of built-in signal treatment circuit probe comprises gas sensor element (1), gas sensor element installing plate (1), shell (4); Wherein, gas sensor element (1) is installed in gas sensor element installing plate (2) and goes up and be arranged in the inner chamber of shell (3), it is characterized in that: in the inner chamber of shell (4), also be provided with signal-processing board (11), signal-processing board (11) is provided with signal processing circuit and lead-in wire (5), signal-processing board (11) is with the overlapping setting of gas sensor element installing plate (2) and be electrically connected, shell (4) is provided with air intake opening (8), and air intake opening (8) communicates with the inner chamber of shell (4) and be relative with gas sensor element (1).
2. the gas sensing probe of a kind of built-in signal treatment circuit according to claim 1, it is characterized in that: signal-processing board (11) overlaps the top of gas sensor element installing plate (2), gas sensor element installing plate (2) is positioned at the top of gas sensor element (1), air intake opening (8) is arranged on the bottom of shell (4), between the inner chamber of shell (4) and air intake opening (8), be provided with boss (7), between boss (7) and gas sensor element (1) packing ring (6) is set, gas sensor element (1) is spacing by boss (7).
3. the gas sensing probe of a kind of built-in signal treatment circuit according to claim 2 is characterized in that: signal processing circuit comprises weak signal extraction and amplifying circuit.
4. pop one's head in according to the gas sensing of claim 1,2 or 3 described a kind of built-in signal treatment circuits, it is characterized in that: the outer surface at gas sensor element (1) is provided with heating (3), and heating (3) is installed on the installing plate (2) by pin (9).
5. the gas sensing probe of a kind of built-in signal treatment circuit according to claim 4, it is characterized in that: heating (3) is the metallic ceramics heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205896056U CN201867368U (en) | 2010-11-03 | 2010-11-03 | Gas sensing probe embedded with signal processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205896056U CN201867368U (en) | 2010-11-03 | 2010-11-03 | Gas sensing probe embedded with signal processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867368U true CN201867368U (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205896056U Expired - Lifetime CN201867368U (en) | 2010-11-03 | 2010-11-03 | Gas sensing probe embedded with signal processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201867368U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236144A (en) * | 2013-03-29 | 2013-08-07 | 太原罗克佳华工业有限公司 | Apparatus used for underground data acquisition and wireless transmission |
| CN103728416A (en) * | 2013-11-20 | 2014-04-16 | 哈尔滨东方报警设备开发有限公司 | Gas sensor module capable of realizing automatic cooling or heating |
| CN105738564A (en) * | 2014-12-11 | 2016-07-06 | 哈尔滨东方报警设备开发有限公司 | Gas sensor capable to conduct automatic temperature control |
-
2010
- 2010-11-03 CN CN2010205896056U patent/CN201867368U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236144A (en) * | 2013-03-29 | 2013-08-07 | 太原罗克佳华工业有限公司 | Apparatus used for underground data acquisition and wireless transmission |
| CN103728416A (en) * | 2013-11-20 | 2014-04-16 | 哈尔滨东方报警设备开发有限公司 | Gas sensor module capable of realizing automatic cooling or heating |
| CN105738564A (en) * | 2014-12-11 | 2016-07-06 | 哈尔滨东方报警设备开发有限公司 | Gas sensor capable to conduct automatic temperature control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE Owner name: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RE Free format text: FORMER NAME: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee after: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Institute of Coal Science Research Institute |
|
| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: CHONGQING RESEARCH INSTITUTE CO., LTD. OF CHINA COAL TECHNOLOGY & ENGINEERING Group Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |