CN2828804Y - Atomic fluorescence spectrograph - Google Patents
Atomic fluorescence spectrograph Download PDFInfo
- Publication number
- CN2828804Y CN2828804Y CN 200520122223 CN200520122223U CN2828804Y CN 2828804 Y CN2828804 Y CN 2828804Y CN 200520122223 CN200520122223 CN 200520122223 CN 200520122223 U CN200520122223 U CN 200520122223U CN 2828804 Y CN2828804 Y CN 2828804Y
- Authority
- CN
- China
- Prior art keywords
- lens
- atomic fluorescence
- photomultiplier
- atomizer
- light path
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an atomic fluorescence spectrograph which comprises an atomizer, a photomultiplier tube and a light path system which is positioned between the atomizer and the photomultiplier and is provided with unequal-focal length short focuses, wherein the light path system is composed of a lens chamber and a front cover thereof, a lens positioned in the lens chamber and a positioning ring positioned on the back part of the lens, the atomizer is positioned on the front focus of the lens, the back part of the lens chamber is connected together with an outer cover of the photomultiplier tube through screw threads, the photomultiplier tube is fixed in the back focus of the lens and the lens chamber is provided with a fixed ring and is fixedly installed on a lens rack plate through the fixed ring. The atomic fluorescence spectrometer of the utility model has the advantages that the utility model reduces the distance between the atomizer and the photomultiplier tube, enlarges a solid angle receiving atomic fluorescence signals to realize strong atomic fluorescence signals and reduces the fluorescence quenching phenomenon of the atomic fluorescence spectrometer.
Description
Technical field
The utility model relates to optical measuring device, particularly a kind of atomic fluorescence spectrometer.
Background technology
Light path system is the important component part of atomic fluorescence spectrometer, and it is the transmission and the receiving trap of atomic fluorescence spectrophotometry signal.At present, traditional atomic fluorescence spectrometer adopts equidistant light path system both at home and abroad.Because the transfer efficiency and the receiving efficiency of atomic fluorescence spectrophotometry signal are low, directly influence the sensitivity of whole instrument test.Receive solid angle if strengthen, signal energy has strengthened, but has also strengthened system's focal length simultaneously, and the atomic fluorescence spectrophotometry signal is inevitable can be weakened again, and the structure of light path system has also strengthened, and this is a very big contradiction.Transfer efficiency and receiving efficiency directly influence the sensitivity height of atomic fluorescence spectrometer.The transfer efficiency and the receiving efficiency that solve the atomic fluorescence spectrophotometry signal are the important topics of atomic fluorescence spectrometer quality.
The utility model content
The purpose of this utility model is to provide a kind of effective enhancing atomic fluorescence signal, reduces the atomic fluorescence spectrometer of fluorescent quenching phenomenon.
For achieving the above object, the utility model atomic fluorescence spectrometer, comprise atomizer and photomultiplier and the light path system between atomizer and photomultiplier, wherein, light path system is the not equidistant light path system of short Jiao, this light path system is by lens chamber and protecgulum thereof and be arranged in the lens of lens chamber and the centring ring at lens rear portion is formed, atomizer is positioned on the front focus of lens, the rear portion of lens chamber and photomultiplier outer cover are by being threaded togather, and the back focus that photomultiplier is fixed on lens is with on the interior position, be provided with retainer plate between lens chamber and its protecgulum, lens chamber is fixedly mounted on the mirror holder plate by retainer plate.
The utility model atomic fluorescence spectrometer, wherein said photomultiplier are fixed in the lens back focus, and its position is that the distance of photomultiplier and lens is 40mm～60mm.
The utility model atomic fluorescence spectrometer, it is the biconvex lens of 22mm～48mm that wherein said lens adopt diameter, its transmission solid angle is 21 °～43 °.
Adopt respectively between the utility model atomic fluorescence spectrometer, wherein said lens chamber and its protecgulum and retainer plate and be threaded.
Adopt between the utility model atomic fluorescence spectrometer, wherein said centring ring and lens chamber and be threaded.
The advantage of the utility model atomic fluorescence spectrometer is: reduced the distance between atomizer and the photomultiplier, increased the solid angle that the atomic fluorescence signal receives, receive stronger atomic fluorescence signal, reduced the fluorescent quenching phenomenon of atomic fluorescence spectrometer.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that the purpose of this utility model, feature and advantage are had deep understanding.
Description of drawings
Fig. 1 is the vertical view of the utility model atomic fluorescence spectrometer structure;
Fig. 2 is the side view of the utility model atomic fluorescence spectrometer structure;
Fig. 3 is the structure explosive view of Fig. 2;
Fig. 4 is the synoptic diagram of the equidistant light path system of atomic fluorescence spectrometer in the known technology;
Fig. 5 is the not synoptic diagram of equidistant light path system of the utility model atomic fluorescence spectrometer.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
The not equidistant light path system of short Jiao of the utility model atomic fluorescence spectrometer, be by rational light path system structure, the various factors that influences atomic fluorescence spectrophotometry effectiveness and receiving efficiency is taken all factors into consideration, make the transmission path of atomic fluorescence spectrophotometry signal and the proportioning of atomic fluorescence spectrophotometry signal reception solid angle reach best, the loss of atomic fluorescence signal is dropped to minimum, finally reach the purpose that improves instrument test sensitivity.
Fig. 4 and Fig. 5 are respectively the synoptic diagram of the equidistant light path system of atomic fluorescence spectrometer in the known technology and the not synoptic diagram of equidistant light path system of the utility model atomic fluorescence spectrometer.Wherein, atomizer is positioned on the front focus of lens.In Fig. 4, lens diameter is φ 1, and the transmission solid angle is α, and photomultiplier is fixed on the lens back focus, that is: atomizer and photomultiplier equate with the distance of lens, also are a=b, is equidistant light path system; In Fig. 5, lens diameter is φ 2, and the transmission solid angle is β, and photomultiplier is fixed in the back focus of lens, that is: the distance of atomizer and photomultiplier and lens does not wait, and is c＜a yet, is not equidistant light path system.In these two systems, c＜b is arranged, its transmission solid angle α＜β.
With reference to Fig. 1 and Fig. 3, the utility model atomic fluorescence spectrometer comprises the not equidistant light path system of atomizer 1, photomultiplier 7 and short Jiao between atomizer 1 and photomultiplier 7.This light path system is by lens chamber 4 and protecgulum thereof 2 and be arranged in the lens 6 of lens chamber 4 and the centring ring 9 at lens 6 rear portions is formed.Atomizer 1 is positioned on the front focus of lens 6, and lens chamber 4 and protecgulum 2 adopt and be threaded, and the outer cover 5 of the rear portion of lens chamber 4 and photomultiplier 7 is by being threaded togather.It is the biconvex lens of 22mm～48mm that lens 6 adopt diameter, and its transmission solid angle β is 21 °～43 °.Lens chamber 4 and centring ring 9 adopt and are threaded.Photomultiplier 7 is 40mm～60mm with the distance of lens 6, and promptly photomultiplier 7 is fixed on the back focus of lens 6 with on the interior position.Lens chamber 4 is provided with retainer plate 3 and is fixedly mounted on the mirror holder plate 8 by retainer plate 3.
In the size and organization plan of the utility model atomic fluorescence spectrometer light path system, adjusting lens 6 diameters is 22mm～48mm, transmission solid angle β is 21 °～43 °, when the distance of photomultiplier 7 and lens 6 is 40mm～60mm, the cooperation of the transmission path of atomic fluorescence spectrophotometry signal and atomic fluorescence spectrophotometry signal transmission solid angle is selected to reach optimum efficiency, improved the transfer efficiency and the receiving efficiency of atomic fluorescence spectrophotometry signal, thereby the sensitivity that has improved instrument test.
Claims (5)
1. atomic fluorescence spectrometer, comprise atomizer (1) and photomultiplier (7) and be positioned at described atomizer (1) and described photomultiplier (7) between light path system, it is characterized in that, wherein, described light path system is the not equidistant light path system of short Jiao, this light path system is by lens chamber (4) and protecgulum (2) thereof and be arranged in the lens (6) of described lens chamber (4) and the centring ring (9) at described lens (6) rear portion is formed, described atomizer (1) is positioned on the front focus of described lens (6), the outer cover (5) of the rear portion of described lens chamber (4) and described photomultiplier (7) is by being threaded togather, and the back focus that described photomultiplier (7) is fixed on described lens (6) is with on the interior position, the front portion of described lens chamber (4) is provided with retainer plate (3), and described lens chamber (4) is fixedly mounted on the mirror holder plate (8) by described retainer plate (3).
2. atomic fluorescence spectrometer according to claim 1 is characterized in that, wherein said photomultiplier (7) is fixed on lens (6) back focus and with interior position is: the distance of photomultiplier and lens is 40mm～60mm.
3. atomic fluorescence spectrometer according to claim 1 and 2 is characterized in that, it is the biconvex lens of 22mm～48mm that wherein said lens (6) adopt diameter, and its transmission solid angle (β) is 21 °～43 °.
4. atomic fluorescence spectrometer according to claim 3 is characterized in that, adopts respectively between wherein said lens chamber (4) and its protecgulum (2) and the described retainer plate (3) to be threaded.
5. atomic fluorescence spectrometer according to claim 4 is characterized in that, adopts between wherein said centring ring (9) and the described lens chamber (4) to be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122223 CN2828804Y (en) | 2005-09-23 | 2005-09-23 | Atomic fluorescence spectrograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122223 CN2828804Y (en) | 2005-09-23 | 2005-09-23 | Atomic fluorescence spectrograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828804Y true CN2828804Y (en) | 2006-10-18 |
Family
ID=37080360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520122223 Expired - Lifetime CN2828804Y (en) | 2005-09-23 | 2005-09-23 | Atomic fluorescence spectrograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828804Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088824A (en) * | 2008-03-14 | 2018-05-29 | 科隆迪亚戈有限公司 | A kind of system for testing and analyzing object |
-
2005
- 2005-09-23 CN CN 200520122223 patent/CN2828804Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088824A (en) * | 2008-03-14 | 2018-05-29 | 科隆迪亚戈有限公司 | A kind of system for testing and analyzing object |
| CN108088824B (en) * | 2008-03-14 | 2021-06-04 | 雅培快速诊断耶拿有限公司 | System for detecting analytes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061018 |
|
| EXPY | Termination of patent right or utility model |