CN203705051U - Light source system and gas analyzer - Google Patents
Light source system and gas analyzer Download PDFInfo
- Publication number
- CN203705051U CN203705051U CN201320837146.2U CN201320837146U CN203705051U CN 203705051 U CN203705051 U CN 203705051U CN 201320837146 U CN201320837146 U CN 201320837146U CN 203705051 U CN203705051 U CN 203705051U
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- CN
- China
- Prior art keywords
- dazzling screen
- light
- deuterium lamp
- convex lens
- source system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a light source system and a gas analyzer. The light source system comprises a mounting rack, and a deuterium lamp, a convex lens and an installation assembly thereof, an anti-dazzling screen and a driving motor which are disposed on the mounting rack. The convex lens and the installation assembly thereof are arranged in a light path of the deuterium lamp. The driving motor is used for driving the anti-dazzling screen to rotate. The anti-dazzling screen is arranged between the deuterium lamp and the convex lens and used for allowing light emitted by the deuterium lamp to intermittently irradiate an air chamber provided with the convex lens. Due to the arrangement of the anti-dazzling screen and the driving motor, when the anti-dazzling screen is rotating, the lights emitted by the deuterium lamp interruptedly pass the gas chamber. When the anti-dazzling screen blocks the optical path, a photoelectric detector arranged at the light-emitting window of the gas chamber of the gas analyzer can detect a dark background value of this moment. When the anti-dazzling screen does not block the optical path, the light pass the gas chamber, and presently the photoelectric detector can detect aspectrum value. Because the dark background value and the spectrum value are both detected in real time, a real luminous intensity can be obtained through a certain calculation.
Description
Technical field
The utility model relates to flue gas inspection field, relates in particular to and ' plants light-source system and gas analyzer.
Background technology
In existing spectrochemical analysis for gases technology, great majority adopt continuous spectrum light source, as deuterium lamp, mercury lamp and part infrared light supply etc.In analytic process, real-time, the Stability and veracity of the spectral signal intensity of light source is the determinative of spectral analysis result reliability.And the collection of light signal strength is all to be undertaken by photodetector substantially.For photodetector, owing to being subject to the impact of the factors such as environment temperature, circuit design and serviceable life, make it unglazed in the situation that, can detect certain light intensity value, i.e. dark background.And corresponding fluctuation can appear along with the variation of above-mentioned factor in this value, thereby make the actual light intensity detecting occur certain fluctuation.Therefore,, in order to obtain more accurately actual light intensity, need to dark background be gathered and be deducted.
The mode that existing gas analyzer gathers dark background has following two kinds conventionally: the first, in the time that analyser goes out, gather several dark backgrounds, then obtain its mean value, be written in the dark background of algorithm, dark background during as whole system inverting concentration, it is all identical making whole system dark background at any time.This mode has joined fixing dark background value in the changing value of light source actual strength, and making the intensity of light source value detecting is not real light intensity value, makes the result can not accurate response actual concentrations value.The second, increases circulation light-shading apparatus at the front end of photodetector, obtains current dark background value by the switching of controlling light-shading apparatus.The method due at photodetector between light source, the factor that also exists some to affect photodetection and survey dark background actual value, thereby the dark background value of the reflection whole system that the dark background that detects of the method can not be strictly according to the facts.
Therefore, in spectral analysis, how Real-time Obtaining dark background value, and the true dark background value that the dark background value gathering is whole system is that those skilled in the art are badly in need of the technical matters solving.
Utility model content
In order to solve the technical matters existing in background technology, the utility model proposes a kind of light-source system, can not only Real-time Obtaining dark background value, the true dark background value that the dark background value that also makes this collection is whole system.In addition, the utility model has also proposed a kind of gas analyzer that this light-source system is installed.
On the one hand, the utility model proposes a kind of light-source system, for spectral analysis, comprise erecting frame and be arranged on deuterium lamp, convex lens and the installation component thereof on described erecting frame, convex lens and installation component thereof are arranged on the light path of deuterium lamp; This light-source system also comprises anti-dazzling screen and drive motor, and described drive motor is used for driving anti-dazzling screen to rotate; Described anti-dazzling screen is arranged between deuterium lamp and convex lens, for the light interrupted illuminating convex lens that allow described deuterium lamp send.
Further, on described anti-dazzling screen, have transmission region, described drive motor is connected with anti-dazzling screen by rotating shaft, and described transmission region is the open close light of crossing deuterium lamp in the middle of anti-dazzling screen rotation process.
Further, described anti-dazzling screen is rectangle, and the anti-dazzling screen of described rectangle is in rotation process, and the light path of blocking between deuterium lamp and convex lens can be interrupted in its long limit.
Further, described light-source system also comprises connecting cylinder, and described connecting cylinder is between convex lens and anti-dazzling screen, and one end of connecting cylinder and installation component are socketed, and anti-dazzling screen is fitted in the end face of the other end of connecting cylinder rotationally.
Further, described connecting cylinder is conically shaped, and the little one end of xsect is towards deuterium lamp, one end socket installation component that xsect is large.
Further, described drive motor and anti-dazzling screen integrated installation are on described erecting frame, and a side of anti-dazzling screen is installed and be all arranged on to described drive motor and deuterium lamp vicinity, and described convex lens and installation component thereof are arranged on the opposite side of anti-dazzling screen.
Further, described light-source system also comprises the limit switch being fixed on described erecting frame, and described limit switch is provided with guide groove, and the rotational trajectory of described anti-dazzling screen is by described guide groove.
On the other hand, the utility model also proposes a kind of gas analyzer, comprises above-mentioned any one light-source system.
A kind of light-source system the utility model proposes, comprise erecting frame and be arranged on deuterium lamp, convex lens and installation component thereof, anti-dazzling screen and the drive motor on described erecting frame, convex lens and installation component thereof are arranged on the light path of deuterium lamp, drive motor is used for driving anti-dazzling screen to rotate, anti-dazzling screen is arranged between deuterium lamp and convex lens, for the light interrupted illuminating convex lens that allow deuterium lamp send.Due to the setting of anti-dazzling screen and drive motor, in the rotary course of anti-dazzling screen, the light that deuterium lamp sends is interrupted through convex lens, in the time that anti-dazzling screen blocks light path, the photodetector at the air chamber light-emitting window place of gas analyzer can detect signal value now, it is dark background value, in the time that anti-dazzling screen does not block light path, light is through convex lens, now photodetector can detect another signal value, it is spectral value, because the spectral value of dark background value and above-mentioned detection is all to detect in real time, therefore pass through certain calculating, just can obtain real light intensity.
In further technical scheme, between anti-dazzling screen and the installation component of convex lens, add connecting cylinder, can allow anti-dazzling screen in rotary course, the impact that the light that as far as possible reduces deuterium lamp when blocking light path detects dark background, makes the dark background that detects more true.
In further technical scheme, connecting cylinder be shaped as taper shape, can better ensure like this effect that is in the light of anti-dazzling screen, further increased the authenticity that dark background detects.
In further technical scheme, because drive motor and anti-dazzling screen also integrated installation, on erecting frame, make the smaller volume of whole light-source system, structure is more compact, has reduced to take up room.
Brief description of the drawings
Fig. 1 is the light path principle figure of a kind of light-source system of the utility model specific embodiment proposition.
Embodiment
As shown in Figure 1, the utility model specific embodiment provides a kind of light-source system, for spectral analysis, comprise erecting frame and integrated installation deuterium lamp 1, convex lens 2 and installation component thereof, anti-dazzling screen 3 and the drive motor 4 on erecting frame, convex lens 2 and installation component thereof are arranged on the light path of deuterium lamp 1; Drive motor 4 and the contiguous side of installing and being all arranged on anti-dazzling screen 3 of deuterium lamp 1, convex lens 2 and installation component thereof are arranged on the opposite side of anti-dazzling screen 3, and drive motor 4 is for driving anti-dazzling screen 3 to rotate; Anti-dazzling screen 3 is arranged between deuterium lamp 1 and convex lens 2, for the light interrupted illuminating convex lens 2 that allow deuterium lamp 1 send.Particularly, anti-dazzling screen 3 can have multiple, and for example: on anti-dazzling screen 3, have transmission region, drive motor 4 is connected with anti-dazzling screen 3 by rotating shaft, transmission region is the open close light path of crossing deuterium lamp 1 in the middle of anti-dazzling screen 3 rotation processes; Or anti-dazzling screen 3 is rectangle, the anti-dazzling screen 3 of rectangle is in rotation process, and the light path of blocking between deuterium lamp 1 and convex lens 2 can be interrupted in its long limit.It should be noted that, the shape of anti-dazzling screen 3 can also be other shape, as long as in the process of rotating at anti-dazzling screen 3, the luminous energy that deuterium lamp 1 sends is interrupted through anti-dazzling screen 3 just.
Compared with prior art, due to the setting of anti-dazzling screen 3 and drive motor 4, in the rotary course of anti-dazzling screen 3, the light that deuterium lamp 1 sends is interrupted through convex lens 2, in the time that anti-dazzling screen 3 blocks light path, the photodetector of the air chamber light-emitting window of gas analyzer can detect dark background value now, in the time that anti-dazzling screen 3 does not block light path, light is through convex lens 2, now photodetector can detect light intensity, because the light intensity of dark background value and above-mentioned detection is all to detect in real time, therefore pass through the calculating of predetermined way, just can obtain real light intensity, in addition, because drive motor 4 and anti-dazzling screen 3 also integrated installation, on erecting frame, make the smaller volume of whole light-source system, structure is more compact, has reduced to take up room.
Preferably, light-source system also comprises connecting cylinder 6, and connecting cylinder 6 is between convex lens 2 and anti-dazzling screen 3, and one end of connecting cylinder 6 and installation component are socketed, and anti-dazzling screen 3 is fitted in the end face of the other end of connecting cylinder 6 rotationally.Particularly, connecting cylinder 6 is conically shaped, and the little one end of xsect is towards deuterium lamp 1, one end socket installation component that xsect is large.Like this, the light inlet place of the adjacent connecting cylinder 6 of anti-dazzling screen 3, connecting cylinder 6 is open circles taper, ensureing that the luminous energy of dispersing at a certain angle all enters into lens face, the extraneous parasitic light of avoiding of maximum possible enters into light path, and have influence on the measurement of dark background, thereby ensure the authenticity that dark background detects.
In addition, this light-source system also comprises the limit switch 5 being fixed on erecting frame, and limit switch 5 is provided with guide groove, and the rotational trajectory of anti-dazzling screen 3 passes through guide groove.Limit switch 5 can judge and anti-dazzling screen 3 is positioned to judgement the collection point of dark background.
In addition, the utility model specific embodiment also provides a kind of gas analyzer, above-mentioned any one light-source system and photodetector are installed, photodetector is arranged on the light-emitting window of air chamber, therefore the photodetector of this gas analyzer can not only Real-time Obtaining dark background value, the true dark background value that the dark background value that also makes this collection is whole system, thus make the testing result of gas analyzer more accurate.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; be equal to replacement or changed according to the technical solution of the utility model and utility model design thereof, within all should being encompassed in protection domain of the present utility model.
Claims (8)
1. a light-source system, for spectral analysis, comprise erecting frame and be arranged on deuterium lamp (1), convex lens (2) and the installation component thereof on described erecting frame, convex lens (2) and installation component thereof are arranged in the light path of deuterium lamp (1), it is characterized in that, also comprise anti-dazzling screen (3) and drive motor (4), described drive motor (4) is for driving anti-dazzling screen (3) to rotate; Described anti-dazzling screen (3) is arranged between deuterium lamp (1) and convex lens (2), for the light interrupted illuminating convex lens (2) that allow described deuterium lamp (1) send.
2. light-source system according to claim 1, it is characterized in that, described anti-dazzling screen has transmission region on (3), described drive motor (4) is connected with anti-dazzling screen (3) by rotating shaft, and described transmission region is interrupted the light that sees through deuterium lamp (1) in anti-dazzling screen (3) rotation process.
3. light-source system according to claim 1, it is characterized in that, described anti-dazzling screen (3) is rectangle, and the anti-dazzling screen (3) of described rectangle is in rotation process, and the light path of blocking between deuterium lamp (1) and convex lens (2) can be interrupted in its long limit.
4. light-source system according to claim 1, it is characterized in that, also comprise connecting cylinder (6), described connecting cylinder (6) is positioned between convex lens (2) and anti-dazzling screen (3), one end of connecting cylinder (6) and installation component socket, anti-dazzling screen (3) is fitted in the end face of the other end of connecting cylinder (6) rotationally.
5. light-source system according to claim 4, is characterized in that, described connecting cylinder (6) is conically shaped, and the little one end of xsect is towards deuterium lamp (1), one end socket installation component that xsect is large.
6. according to the light-source system described in claim 1-5 any one, it is characterized in that, described drive motor (4) and anti-dazzling screen (3) integrated installation are on described erecting frame, described drive motor (4) and the contiguous side of installing and being all arranged on anti-dazzling screen (3) of deuterium lamp (1), described convex lens (2) and installation component thereof are arranged on the opposite side of anti-dazzling screen (3).
7. light-source system according to claim 6, it is characterized in that, also comprise the limit switch (5) being fixed on described erecting frame, described limit switch (5) is provided with guide groove, and the rotational trajectory of described anti-dazzling screen (3) is by described guide groove.
8. a gas analyzer, is characterized in that, comprises the light-source system described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320837146.2U CN203705051U (en) | 2013-12-18 | 2013-12-18 | Light source system and gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320837146.2U CN203705051U (en) | 2013-12-18 | 2013-12-18 | Light source system and gas analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705051U true CN203705051U (en) | 2014-07-09 |
Family
ID=51055474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320837146.2U Expired - Fee Related CN203705051U (en) | 2013-12-18 | 2013-12-18 | Light source system and gas analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089702A (en) * | 2013-12-18 | 2014-10-08 | 力合科技（湖南）股份有限公司 | Light source system and gas analyzer |
-
2013
- 2013-12-18 CN CN201320837146.2U patent/CN203705051U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089702A (en) * | 2013-12-18 | 2014-10-08 | 力合科技（湖南）股份有限公司 | Light source system and gas analyzer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20211218 |