CN104122245B - Portable Raman spectrometer calibrates light path standard sources introducing method - Google Patents
Portable Raman spectrometer calibrates light path standard sources introducing method Download PDFInfo
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- CN104122245B CN104122245B CN201310149283.1A CN201310149283A CN104122245B CN 104122245 B CN104122245 B CN 104122245B CN 201310149283 A CN201310149283 A CN 201310149283A CN 104122245 B CN104122245 B CN 104122245B
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- standard sources
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- critical component
- light path
- raman spectrometer
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Abstract
The present invention is a kind of highly integrated, closed optical path system portable Raman spectrometer calibration light path standard sources introducing method.The method manufactures and designs a kind of path channels critical component, makes its connection Raman spectrometer sample stage and fixed support standard sources.The be magnetic lower end of bead of critical component band is combined (while rise on-off action) with the texturearunaperpendicular of raman spectroscopic sample platform, standard sources is inserted at the assistant of the path channels critical component upper end, wherein the light source of standard sources is collimated with critical component light path entrance, so as to fixed support standard sources, enable to be collimated at the circular hole that stabilization passes through path channels critical component and enter calibration light path, so as to realize for standard sources introducing the target that Raman spectrum calibrates light path.Critical component material main body is black polymer material or metal material, inlays 3 5mm magnetic beads 48, and its optical path length is 3cm 5cm, and assistant length is 10cm 15cm.
Description
Art
The present invention relates to Portable Raman spectrometer calibration light path standard sources introducing method, more particularly to height collects
Into in, the calibration process of closed optical path system portable Raman spectrometer, the method that standard sources introduces calibration light path.
Background technology
The property of Raman spectrum frequency and atom or ion, space bit shape and they to each other or with extraneous interactions
It is relevant etc. factor；According to Raman spectrum, the information of composition, micro-structural and the internal motion of the material can be just learned.Therefore,
It is similar to infrared absorption spectroscopy, the information about molecular vibration or rotation can also be obtained to the research of Raman spectrum.At present, draw
Graceful spectral technique is with its abundant information, and sample preparation is simple, to unique advantages such as sample nondestructive wounds, in chemistry, physics, material
The multiple fields such as, life science, environmentology, medicine and pharmacology, geology, archaeology of cultural relic, the public security science of law are widely used.
Due to the extensive use of Raman spectrum, requirement is proposed to Raman spectrum light path calibration.Raman spectrum needs regular
Check to determine whether status of equipment meets general measure requirement or whether equipment performance there occurs change.Raman spectrum is calibrated just
It is to inspect periodically and determine when instrument performance declines system problem place for convenience.Particularly examined in geology, historical relic
The multiple fields such as Gu, the public security science of law, because Portable Raman spectrometer is easy to carry, on-the-spot test the features such as and obtain extensively should
With.But because its integrated level is high, system lock, its light path calibration liquid band carrys out very big difficulty.
U.S.ASTM standard has issued standard to Raman spectrum performance measurement and calibration standard material, but these standards
Mainly for the Teletext Standard that Raman spectrum calibration is proposed, do not have as standard sources is introduced into calibration light path method in calibration process
It is described, and standard sources is introduced into the important step that calibration light path is calibration Raman spectroscopy instrument.
Because Portable Raman spectrometer is highly integrated, its sample test light path is closed system, therefore relatively large Raman
Spectrometer calibration Plays light source introduces increasingly difficult.In order to break through this problem, this patent employs unique design
The path channels of specific light path length and shape, standard sources is introduced the calibration light path of Portable Raman spectrometer, is realized just
Take the calibration of formula Raman spectrometer.
The content of the invention
This patent proposes the introducing method that a kind of Portable Raman spectrometer calibrates light path standard sources.Set using uniqueness
The path channels of meter, standard sources is introduced the calibration light path of Portable Raman spectrometer, realizes Portable Raman spectrometer
Calibration, solves and is related in highly integrated, closed optical path system Raman spectrometer calibration process, and standard sources introduces calibration light path
Method.
The present invention uses specific materials material, according to the light path that standard sources dimensioned is specific light path length and shape
Passage, standard sources is introduced the calibration light path of Portable Raman spectrometer, realizes the calibration of Portable Raman spectrometer.This is only
Standard sources only can not only be introduced calibration light path by the path channels critical component of ad hoc meter, it is to avoid the introducing of veiling glare, and
And play support effect and the on-off action of fixed standard light source.
What the present invention was realized in：
Described method uses specific materials material first, according to standard sources size design, is processed as specific optical path length
The path channels of degree and shape, it is secondly that the path channels are close respectively at standard sources and Portable Raman spectrometer sample stage
With reference to.On the one hand standard sources is introduced calibration light path, but avoid the introducing of veiling glare；On the other hand standard sources stabilization is made
Be fixed in whole light path system.Standard sources is so introduced the calibration light path of Portable Raman spectrometer, is realized portable
The calibration of formula Raman spectrometer.
In specific implementation,
Described specific materials body of material is black polymer material or metal material, inlays 3-5mm magnetic beads 4-8
；
Described specific optical path length is 3cm-5cm；
Described given shape is asymmetric assistant type, assistant length 10cm-15cm；
Described standard sources is introduced the specific path that Portable Raman spectrometer calibrates light path：
Standard sources is inserted at the assistant of the path channels critical component upper end, standard sources is closed by path channels
Collimated at the circular hole of key member and enter calibration light path；Then by path channels critical component band be magnetic bead lower end and standard
It is vertical with raman spectroscopic sample platform to be combined, realize for standard sources introducing the target that Raman spectrum calibrates light path.
Key point of the invention is：
(1) combination of path channels and standard sources and sample stage is closed, it is to avoid the introducing of veiling glare and standard sources
Diverging；
(2) path channels will also play the support effect of fixed standard light source, standard sources is stablized, collimate entrance
Calibration light path；
(3) more importantly path channels with sample stage combination when to play measurement on-off action.
Innovative point of the invention：
1) asymmetric assistant type path channels are designed；
2) use and inlay magnetic bead mode and sample stage adhesive and play measurement on-off action.
Brief description of the drawings
The schematic diagram of Fig. 1 present invention design processing path channels critical components；Fig. 1 (a) is top view, and Fig. 1 (b) is to cut open
Face figure.Fig. 2 standard sources introduces calibration light path technology path；Fig. 2A：Sample stage；B：Sample stage groove, conjunction is carved with capping, is played
On-off action；C：Critical component assistant part recess long, places standard sources, plays fixation；D：Critical component light path enters
Mouthful, it is also the light source channels of standard sources；E：Critical component bottom magnetic bead carves conjunction part with B grooves, plays sealing and switch is made
With.
Specific embodiment：
Path channels critical component of the invention is as shown in Figure 1.Design path channels critical component size such as Fig. 1 is marked
Know, using black polymer material or metal material by design size cutting, processing, polishing, by 4-8 can magnetic bead be embedded in
Path channels bottom.It is as shown in Figure 2 that standard sources is introduced calibration light path method by the present invention.Path channels critical component is carried
The lower end of magnetic bead is vertical with raman spectroscopic sample platform to be combined, and wherein critical component band is magnetic bead part and Raman light
The groove B of spectroscopy sample table A carves conjunction.Standard sources is inserted at the assistant of the path channels critical component upper end, its Plays
The light source of light source is collimated with critical component light path entrance D, and standard sources remaining part carves conjunction with critical component C, so that fixed branch
Support standard sources, enables to be collimated into calibration light path, so as to realize at the circular hole that stabilization passes through path channels critical component
Standard sources is introduced into the target that Raman spectrum calibrates light path.Obtain design uniqueness, meet path channels and Raman spectrometer sample
Sample platform and standard sources combine closing, and can play the path channels of fixed standard light source bracket effect.
Embodiment 1
A：As Fig. 1 processes path channels critical component, path channels size is 3cm, and assistant length is 10cm, and bottom is inlayed
3mm magnetic bead 4.
B：Such as Fig. 2 by path channels critical component with 4 lower ends of magnetic bead and raman spectroscopic sample platform vertical junction
Close, wherein the be magnetic groove B of bead part and raman spectroscopic sample platform A of critical component band carves conjunction.
C：The light source outlet port of mercury lamp standard sources is inserted at the assistant of the path channels critical component upper end, its
The light source of Plays light source is collimated with critical component light path entrance D, and standard sources remaining part carves conjunction with critical component C, so that
Fix critical component C and support standard sources.
D：Collimated at the circular hole that so light stability of standard sources passes through path channels critical component and enter calibration light path,
So as to realize for standard sources introducing the target that Raman spectrum calibrates light path.Obtain design uniqueness, meet path channels and Raman
Optical spectrometer sample platform and standard sources combine closing, and can play the path channels of fixed standard light source bracket effect.
Embodiment 2
A：As Fig. 1 processes path channels critical component, path channels size is 5cm, and assistant length is 15cm, and bottom is inlayed
5mm magnetic bead 8.
B：Such as Fig. 2 by path channels critical component with 8 lower ends of magnetic bead and raman spectroscopic sample platform vertical junction
Close, wherein the be magnetic groove B of bead part and raman spectroscopic sample platform A of critical component band carves conjunction.
C：The light source outlet port of neon lamp standard sources is inserted at the assistant of the path channels critical component upper end, its
The light source of Plays light source is collimated with critical component light path entrance D, and standard sources remaining part carves conjunction with critical component C, so that
Fix critical component C and support standard sources.
D：Collimated at the circular hole that so light stability of standard sources passes through path channels critical component and enter calibration light path,
So as to realize for standard sources introducing the target that Raman spectrum calibrates light path.Obtain design uniqueness, meet path channels and Raman
Optical spectrometer sample platform and standard sources combine closing, and can play the path channels of fixed standard light source bracket effect.
Claims (4)
1. Portable Raman spectrometer calibrates light path standard sources introducing method, it is characterised in that：
Methods described selects specific materials material, logical according to the light path that standard sources dimensioned is specific light path length and shape
Road critical component, the path channels critical component is asymmetric assistant type, and standard sources is introduced into Portable Raman spectrometer
Calibration light path, realize the calibration of Portable Raman spectrometer；
The course of work that methods described is realized is that standard sources is inserted the upper end of the path channels critical component, standard sources
Enter calibration light path by being collimated at the circular hole of the path channels critical component；Then by the path channels critical component band
The lower end of the bead that is magnetic is vertical with raman spectroscopic sample platform to be combined, and realizes for standard sources introducing Raman spectrum calibration light path
Target.
2. Portable Raman spectrometer calibrates light path standard sources introducing method according to claim 1, it is characterised in that：
The specific materials material is black polymer material or metal material；
Standard sources is only fully incorporated Raman spectrometer light by the path channels critical component by what certain material was processed
Road, but avoid the path channels critical component of external stray light introducing.
3. Portable Raman spectrometer calibrates light path standard sources introducing method according to claim 1, it is characterised in that：
The specific optical path length is to meet the optical path length that standard sources enters calibration light path intensity according to alignment requirements；It is described
Specific optical path length is 3cm-5cm；
The path channels critical component plays support effect to standard sources, is allowed to be fixed in calibration light path；The light path
Passage critical component is shaped as asymmetric assistant type, so as to stress balance.
4. Portable Raman spectrometer calibrates light path standard sources introducing method according to claim 3, it is characterised in that：
The path channels critical component not only plays fixed support effect to standard sources, also tight with Raman spectrometer
With reference to, it is to avoid external stray light introduces calibration light path；Inlay 3-5mm magnetic grain in the assistant lower end of the path channels critical component
4-8, pearl, so as to Raman spectrometer sample stage adhesive.
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| CN108106732B (en) * | 2017-12-01 | 2020-06-09 | 中国计量科学研究院 | Method and device for calibrating wave number resolution of Raman spectrometer |
| CN113640257A (en) * | 2020-04-27 | 2021-11-12 | 中国科学院上海硅酸盐研究所 | Array sample spectrum testing system |
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| CN101187705B (en) * | 2007-12-19 | 2011-05-18 | 中国科学院空间科学与应用研究中心 | Spectrum irradiance standard light source for ultraviolet optical instrument radiometric calibration |
| CN201193960Y (en) * | 2008-05-09 | 2009-02-11 | 杭州浙大三色仪器有限公司 | Optical calibrating device having alignment apparatus |
| CN102121902B (en) * | 2011-03-15 | 2012-10-24 | 南京工业大学 | Online Raman spectrometer correction device and correction method thereof |
| CN102878453B (en) * | 2012-08-28 | 2014-12-24 | 中国科学院长春光学精密机械与物理研究所 | Light source mechanism capable of moving along spherical track |
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