CN201289464Y - Portable light-tight smoke meter - Google Patents
Portable light-tight smoke meter Download PDFInfo
- Publication number
- CN201289464Y CN201289464Y CNU2008201429423U CN200820142942U CN201289464Y CN 201289464 Y CN201289464 Y CN 201289464Y CN U2008201429423 U CNU2008201429423 U CN U2008201429423U CN 200820142942 U CN200820142942 U CN 200820142942U CN 201289464 Y CN201289464 Y CN 201289464Y
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- Prior art keywords
- circuit
- flue
- control circuit
- optical sensor
- smoke channel
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- Expired - Fee Related
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Abstract
The utility model relates to a portable light-tight smoke meter which comprises a tail gas collector, a light source generating device, a smoke channel, an optical sensor, a constant temperature circuit, a signal collecting and amplifying circuit, a miniature chip control circuit and an auxiliary functional circuit, wherein, the light source generating device is fixedly arranged at one end of the smoke channel, and the optical sensor is installed at the other end of the smoke channel; the constant temperature circuit is connected on the smoke channel; a fan is fixedly arranged above the smoke channel; a tail gas inlet is reserved in the middle of the smoke channel and connected with the tail gas collector; the optical sensor is connected with the input terminal of the signal collecting and amplifying circuit; the output terminal of the signal collecting and amplifying circuit, the auxiliary functional circuit and a button are connected with the input terminal of the miniature chip control circuit; the output terminal of the miniature chip control circuit is connected with a nixie tube display screen; the miniature chip control circuit outputs a signal; and measuring data is displayed by the nixie tube display screen through pressing the button. The device is simple and light.
Description
Technical field
The utility model belongs to the measurement mechanism field that environmental protection is used, and relates to a kind of portable opacity smoke meter, is used to detect the pick-up unit of vehicle exhaust smoke intensity.
Background technology
Automobile is becoming the main vehicles at present, and its tail gas pollution that causes is also serious day by day.Whether perfect in the supervision to vehicle exhaust, smoke intensity is not only and is estimated the important indicator of diesel engine to atmospheric pollution level, also be to estimate diesel engine combustion important parameter.
At present, light tight measuring method is mainly adopted in the measurement of vehicle exhaust smoke intensity both at home and abroad, also claim the transmitted light light extinction method.Light tight measuring method is to make tested flue gas under the directional light irradiation of certain intensity, utilizes that particle makes transmitted intensity decay to the absorption of incident light effect in the flue gas, determines smoke intensity according to the intensity in transmission of light in flue gas.Its concrete structure generally as shown in Figure 1.Under this structure, the measuring unit of tail gas and the control module of system are separated from each other, and install more loaded down with trivial details, also difficult searching when machine breaks down, and it is also not too convenient to carry transportation when measuring at the scene.
Summary of the invention
Problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of portable opacity smoke meter is provided, and is will measure and smoke intensity detecting instrument that control is combined as a whole, makes instrument miniaturization, and portability make the user to use more convenient.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of portable opacity smoke meter that provides according to the utility model, comprise exhaust gas collector, light source generating means, flue, optical sensor and constant-temperature circuit, signals collecting amplifying circuit, microchip control circuit, auxiliary functional circuit, described light source generating means 3 is packed in an end of flue 5, optical sensor 8 is contained in the other end of flue, constant-temperature circuit 4 is connected on the flue, the flue top is fixed with fan 10, and the flue middle part is left gas inlet 12 and is connected with exhaust gas collector 11; Optical sensor connects the input end of signals collecting amplifying circuit 9, and the output terminal of signals collecting amplifying circuit, auxiliary functional circuit 6 and button 2 are connected the input end of microchip control circuit 7 respectively; The output terminal of microchip control circuit connects digitron display screen 1, and the microchip control circuit is exported signal, shows measurement data through button by digitron display screen.
The utility model compared with prior art has significant advantage and beneficial effect.
The utility model is that all functions of existing split type opacity smoke meter are integrated, according to these functions physical construction and circuit are merged then and redesign, the function that makes measuring unit and control module to realize can all realize in the opacity smoke meter all-in-one, make two split air conditioners become a whole machine, and reduce machine volume by redesign circuit and structure.
In a word, the utility model be two unit are united two into one after, structure becomes succinctly, it is littler that volume becomes.Make installation, use, the maintenance of instrument all become more practical and convenience.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural principle block diagram of existing opacity smoke meter;
Fig. 2 is a structural principle block diagram of the present utility model;
Fig. 3 is a structural representation of the present utility model;
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof that foundation the utility model is provided, describe in detail as after.
See also Fig. 1～3, a kind of portable opacity smoke meter, comprise exhaust gas collector, light source generating means, flue, optical sensor and constant-temperature circuit, signals collecting amplifying circuit, microchip control circuit, auxiliary functional circuit, described light source generating means 3 is packed in an end of flue 5, optical sensor 8 is contained in the other end of flue, constant-temperature circuit 4 is connected on the flue, and the flue top is fixed with fan 10, and the flue middle part is left gas inlet 12 and is connected with exhaust gas collector 11; Optical sensor connects the input end of signals collecting amplifying circuit 9, and the output terminal of signals collecting amplifying circuit, auxiliary functional circuit 6 and button 2 are connected the input end of microchip control circuit 7 respectively; The output terminal of microchip control circuit connects digitron display screen 1, and the microchip control circuit is exported signal, shows measurement data through button by digitron display screen.
Principle of work of the present utility model is to adopt the transmitted light light extinction method, make tested flue gas under the directional light irradiation of certain intensity, utilize that particle makes transmitted intensity decay to the absorption of incident light effect in the flue gas, determine smoke intensity according to the intensity in transmission of light in flue gas.
Claims (1)
1。A kind of portable opacity smoke meter, comprise exhaust gas collector, light source generating means, flue, optical sensor and constant-temperature circuit, signals collecting amplifying circuit, microchip control circuit, auxiliary functional circuit, it is characterized in that: described light source generating means (3) is packed in an end of flue (5), optical sensor (8) is contained in the other end of flue, constant-temperature circuit (4) is connected on the flue, the flue top is fixed with fan (10), and the flue middle part is left gas inlet (12) and is connected with exhaust gas collector (11); Optical sensor connects the input end of signals collecting amplifying circuit (9), and the output terminal of signals collecting amplifying circuit, auxiliary functional circuit (6) and button (2) are connected the input end of microchip control circuit (7) respectively; The output terminal of microchip control circuit connects digitron display screen (1), and the microchip control circuit is exported signal, shows measurement data through button by digitron display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201429423U CN201289464Y (en) | 2008-11-06 | 2008-11-06 | Portable light-tight smoke meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201429423U CN201289464Y (en) | 2008-11-06 | 2008-11-06 | Portable light-tight smoke meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289464Y true CN201289464Y (en) | 2009-08-12 |
Family
ID=40981148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201429423U Expired - Fee Related CN201289464Y (en) | 2008-11-06 | 2008-11-06 | Portable light-tight smoke meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289464Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865007A (en) * | 2019-12-27 | 2020-03-06 | 厦门通创检测技术有限公司 | Hand-held type light-tight smokemeter |
-
2008
- 2008-11-06 CN CNU2008201429423U patent/CN201289464Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865007A (en) * | 2019-12-27 | 2020-03-06 | 厦门通创检测技术有限公司 | Hand-held type light-tight smokemeter |
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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: 20090812 Termination date: 20091207 |