CN104122245A - Method for introduction of standard light source into calibration optical path of portable Raman spectrometer - Google Patents
Method for introduction of standard light source into calibration optical path of portable Raman spectrometer Download PDFInfo
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- CN104122245A CN104122245A CN201310149283.1A CN201310149283A CN104122245A CN 104122245 A CN104122245 A CN 104122245A CN 201310149283 A CN201310149283 A CN 201310149283A CN 104122245 A CN104122245 A CN 104122245A
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Abstract
The invention relates to a method for introduction of a standard light source into a calibration optical path of a portable Raman spectrometer of a highly-integrated closed optical path system; according to the method, a key component of an optical channel is designed for connecting a Raman spectrometer sample table and fixedly supporting a standard light source; the key component lower end with magnetic beads is vertically combined with a groove of the Raman spectrometer sample table, and meanwhile plays the role of a switch; the standard light source is inserted into a wing of the upper end of the key component of the optical channel, a light source of the standard light source is in alignment with an optical path inlet of the key component so as to fixedly support the standard light source; so that the standard light source can stably pass through a circular hole of the key component for collimating and entering the calibration optical path, and the object of introduction of the standard light source into the calibration optical path of the portable Raman spectrometer can be achieved; the material of the main body of the key component is a black polymer material or a metal material, the key component is inlaid with 4-8 magnetic beads with the size of 3-5mm, the optical path length is 3cm-5cm, and the wing length is 10cm-15cm.
Description
Affiliated field
The present invention relates to Portable Raman spectrometer alignment light road standard sources introducing method, particularly relate in the calibration process of highly integrated, closed optical path system Portable Raman spectrometer, standard sources is introduced the method for calibration light path.
Background technology
The character of Raman spectrum frequency and atom or ion, space bit shape and they are to each other or relevant with the extraneous factors such as interaction; According to feature Raman spectrum, just can learn the information of composition, microstructure and the internal motion of this material.Therefore, similar to infrared absorption spectrum, to the research of Raman spectrum, also can obtain the information of relevant molecular vibration or rotation.At present, Raman spectroscopy is with its abundant information, and sample preparation is simple, to unique advantages such as sample nondestructive wounds, in chemistry, physics, materialogy, life science, a plurality of fields such as environmentology, medicine and pharmacology, geology, archaeology of cultural relic, the public security science of law are widely used.
Due to the widespread use of Raman spectrum, to Raman spectrum light path, calibration has proposed requirement.Raman spectrum need to make regular check on to determine whether status of equipment meets routine measurement requirement or whether equipment performance variation has occurred.Raman spectrum calibration is exactly in order conveniently to make regular check on and determine system problem place when instrument performance to decline.Particularly in a plurality of fields such as geology, archaeology of cultural relic, the public security science of law, because the features such as Portable Raman spectrometer is easy to carry, on-the-spot test are used widely.But because its integrated level is high, system lock, its light path calibration solution brings very large difficulty.
U.S. ASTM standard has been issued standard to Raman spectrum performance measurement and calibration standard material, but the word standard that these standards propose mainly for Raman spectrum calibration, as for standard sources being introduced in calibration process to alignment light path method, not setting forth, is an important step of calibration Raman spectroscopy instrument and standard sources is introduced to calibration light path.
Because Portable Raman spectrometer height is integrated, its sample test light path is closed system, and therefore relatively large Raman spectrometer calibration Plays light source is introduced more difficult.In order to break through this problem, this patent has adopted the specific optical path length of a unique design and the path channels of shape, standard sources is introduced to the calibration light path of Portable Raman spectrometer, realizes the calibration of Portable Raman spectrometer.
Summary of the invention
This patent has proposed the introducing method of a kind of Portable Raman spectrometer alignment light road standard sources.Adopt the path channels of unique design, standard sources is introduced to the calibration light path of Portable Raman spectrometer, realize the calibration of Portable Raman spectrometer, solved and related in highly integrated, closed optical path system Raman spectrometer calibration process, standard sources is introduced the method for calibration light path.
The present invention adopts specific materials material, is the path channels of specific optical path length and shape according to standard sources dimensioned, standard sources is introduced to the calibration light path of Portable Raman spectrometer, realizes the calibration of Portable Raman spectrometer.The path channels critical component of this unique design not only can only be introduced standard sources calibration light path, avoids the introducing of parasitic light, and plays support effect and the on-off action of fixed standard light source.
The present invention is achieved in that
First described method adopts specific materials material, according to standard sources size design, be processed as the path channels of specific optical path length and shape, secondly by this path channels respectively at standard sources and the close combination of Portable Raman spectrometer sample stage.Make on the one hand standard sources introduce calibration light path, but avoid the introducing of parasitic light; Make on the other hand standard sources stably be fixed in whole light path system.The calibration light path of like this standard sources being introduced to Portable Raman spectrometer, realizes the calibration of Portable Raman spectrometer.
In concrete enforcement,
Described specific materials body of material is black polymer material or metal material, inlays 3-5mm magnetic grain pearl 4-8;
Described specific optical path length is 3cm-5cm;
Described given shape is asymmetric assistant type, assistant length 10cm-15cm;
The described concrete path of standard sources being introduced to Portable Raman spectrometer calibration light path:
Standard sources is inserted to the assistant place of described path channels critical component upper end, standard sources enters calibration light path by the circular hole place collimation of path channels critical component; Then path channels critical component band the is magnetic lower end and standard and the vertical combination of raman spectroscopic sample platform of a pearl, realize the target of standard sources being introduced to Raman spectrum calibration light path.
Key point of the present invention is:
(1) combination of path channels and standard sources and sample stage is airtight, avoids the introducing of parasitic light and dispersing of standard sources;
(2) path channels also will play the support effect of fixed standard light source, makes standard sources can stablize, collimate and enter calibration light path;
(3) the more important thing is that path channels will play measurement on-off action when sample stage is combined.
Innovative point of the present invention:
1) design asymmetric assistant type path channels;
2) adopt and inlay magnetic bead mode and sample stage adhesive and play measurement on-off action.
Accompanying drawing explanation
Fig. 1. the present invention designs the schematic diagram of processing path channels critical component; Fig. 1 (a) is vertical view, and Fig. 1 (b) is sectional view.
Fig. 2 standard sources is introduced alignment light road technique route; Fig. 2 A: sample stage; B: sample stage groove, carve and close with capping, play on-off action; C: the long assistant part of critical component groove, place standard sources, play fixation; D: critical component light path entrance is also the light source passage of standard sources; E: critical component bottom magnetic bead and B groove are carved and closed part, play sealing and on-off action.
Embodiment:
Path channels critical component of the present invention as shown in Figure 1.Design path channels critical component size, as Fig. 1 identifies, adopts black polymer material or metal material by design size cutting, processing, polishing, and 4-8 can be embedded in to path channels bottom by magnetic grain pearl.The present invention introduces alignment light path method as shown in Figure 2 by standard sources.By path channels critical component band the be magnetic lower end and the vertical combination of raman spectroscopic sample platform of a pearl, be wherein the magnetic groove B of a pearl part and raman spectroscopic sample platform A of critical component band carves and closes.Standard sources is inserted to the assistant place of described path channels critical component upper end, wherein the light source of standard sources and critical component light path entrance D collimate, standard sources remaining part and critical component C carve and close, thereby fixed support standard sources, enable the stable circular hole place by path channels critical component collimation and enter calibration light path, thereby realize the target of standard sources being introduced to Raman spectrum calibration light path.Obtain design unique, meet path channels and be combined sealing with Raman spectrometer sample stage and standard sources, 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 is of a size of 3cm, assistant length is 10cm, 4,3mm magnetic grain pearl is inlayed in bottom.
B: as Fig. 2 by path channels critical component the lower end and the vertical combination of raman spectroscopic sample platform with 4 magnetic grain pearls, be wherein the magnetic groove B of pearl part and raman spectroscopic sample platform A of critical component band carves and closes.
C: the assistant place that the light source exit position of mercury lamp standard sources is inserted to described path channels critical component upper end, wherein the light source of standard sources and critical component light path entrance D collimate, standard sources remaining part and critical component C carve and close, thereby make critical component C fixed support live standard sources.
D: the light stability of standard sources enters calibration light path by the circular hole place collimation of path channels critical component like this, thus realize the target of standard sources being introduced to Raman spectrum calibration light path.Obtain design unique, meet path channels and be combined sealing with Raman spectrometer sample stage and standard sources, 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 is of a size of 5cm, assistant length is 15cm, 8,5mm magnetic grain pearl is inlayed in bottom.
B: as Fig. 2 by path channels critical component the lower end and the vertical combination of raman spectroscopic sample platform with 8 magnetic grain pearls, be wherein the magnetic groove B of pearl part and raman spectroscopic sample platform A of critical component band carves and closes.
C: the assistant place that the light source exit position of neon lamp standard sources is inserted to described path channels critical component upper end, wherein the light source of standard sources and critical component light path entrance D collimate, standard sources remaining part and critical component C carve and close, thereby make critical component C fixed support live standard sources.
D: the light stability of standard sources enters calibration light path by the circular hole place collimation of path channels critical component like this, thus realize the target of standard sources being introduced to Raman spectrum calibration light path.Obtain design unique, meet path channels and be combined sealing with Raman spectrometer sample stage and standard sources, and can play the path channels of fixed standard light source bracket effect.
Claims (4)
1. Portable Raman spectrometer alignment light road standard sources introducing method, is characterized in that:
Described method is selected specific materials material, is the path channels of specific optical path length and shape according to standard sources dimensioned, standard sources is introduced to the calibration light path of Portable Raman spectrometer, realizes the calibration of Portable Raman spectrometer.
2. according to the Portable Raman spectrometer alignment light road standard sources introducing method of claim 1, it is characterized in that:
Described specific materials material is black polymer material or metal material;
What described path channels was processed by certain material only all introduces Raman spectrometer light path by standard sources, but the path channels of avoiding external stray light to introduce.
3. according to the specific optical path length of claim 1 and shape path channels, it is characterized in that:
Described specific optical path length path channels enters the optical path length of calibration light path intensity for meet standard sources according to alignment requirements, be 3cm-5cm;
Described given shape path channels is that path channels plays support effect to standard sources, makes it to be fixed in calibration light path.Path channels is shaped as asymmetric assistant type, so that stress balance.
4. according to the given shape path channels of claim 3, it is characterized in that:
Described given shape path channels, for not only standard sources is played to fixing support effect, also will be combined closely with Raman spectrometer, avoids external stray light to introduce calibration light path.3-5mm magnetic grain pearl 4-8 is inlayed in path channels assistant lower end, so as with the adhesive of Raman spectrometer sample stage.
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| CN201310149283.1A CN104122245B (en) | 2013-04-26 | 2013-04-26 | Portable Raman spectrometer calibrates light path standard sources introducing method |
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| CN201310149283.1A CN104122245B (en) | 2013-04-26 | 2013-04-26 | Portable Raman spectrometer calibrates light path standard sources introducing method |
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| CN104122245B CN104122245B (en) | 2017-07-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106732A (en) * | 2017-12-01 | 2018-06-01 | 中国计量科学研究院 | The scaling method and device of Raman spectrometer wavenumber resolution |
| 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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| CN1635348A (en) * | 2003-12-31 | 2005-07-06 | 中国科学院西安光学精密机械研究所 | On-star self-focusing lens calibration system for interference type super spectrum imager |
| CN101187705A (en) * | 2007-12-19 | 2008-05-28 | 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 |
| CN102121902A (en) * | 2011-03-15 | 2011-07-13 | 南京工业大学 | Online Raman spectrometer correction device and correction method thereof |
| CN102878453A (en) * | 2012-08-28 | 2013-01-16 | 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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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1635348A (en) * | 2003-12-31 | 2005-07-06 | 中国科学院西安光学精密机械研究所 | On-star self-focusing lens calibration system for interference type super spectrum imager |
| CN101187705A (en) * | 2007-12-19 | 2008-05-28 | 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 |
| CN102121902A (en) * | 2011-03-15 | 2011-07-13 | 南京工业大学 | Online Raman spectrometer correction device and correction method thereof |
| CN102878453A (en) * | 2012-08-28 | 2013-01-16 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106732A (en) * | 2017-12-01 | 2018-06-01 | 中国计量科学研究院 | The scaling method and device of Raman spectrometer wavenumber resolution |
| 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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| CN104122245B (en) | 2017-07-04 |
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