CN109900677A - A kind of Raman spectroscopy test device - Google Patents
A kind of Raman spectroscopy test device Download PDFInfo
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- CN109900677A CN109900677A CN201910280603.4A CN201910280603A CN109900677A CN 109900677 A CN109900677 A CN 109900677A CN 201910280603 A CN201910280603 A CN 201910280603A CN 109900677 A CN109900677 A CN 109900677A
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- raman spectroscopy
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 35
- 238000004611 spectroscopical analysis Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004904 shortening Methods 0.000 claims description 3
- 230000001902 propagating effect Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 7
- 238000001237 Raman spectrum Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a kind of Raman spectroscopy test devices, including light generating unit, light transhipment department, light output part and signal receiving part, light generating unit is for generating light and projecting light onto light transhipment department, light transhipment department is for propagating light to light output part, light output part is for focusing light and projecting measured object, and collect the scattering light generated after measured object is excited, light propagation will be scattered to signal receiving part, signal receiving part is used for according to the scattering photogenerated spectroscopic data received, wherein, light output part can change the focus of output light to the distance of measured object, this Raman spectroscopy test device is enabled to adjust the energy density size that output light projects hot spot on measured object, while so that the luminous energy for projecting on measured object makes measured object generate sufficient intensity Raman signal, it reduces and in test measured object is caused to ignite or damage Risk.
Description
Technical field
The present invention relates to spectral instrument technical fields, more particularly to a kind of Raman spectroscopy test device.
Background technique
Raman spectroscopy chemistry, high molecular material, material science, in terms of obtained widely answering
With Raman spectrum has unique advantage in molecular spectrum research field, it can characterize intramolecule normal mode vibration frequency and have
The case where closing vibration level, is able to carry out qualitative analysis, structural analysis and quantitative analysis.
In the prior art, what Raman spectrum test equipment issued is used to project measured object to excite measured object
Light beam, focal point energy density is high, projects measured object with the focus of light beam and is excited, be easy to cause and measured object ignites
Or damage, it is more prominent particularly with inflammable and explosive substances problem.
Summary of the invention
In view of this, can reduce in test the object of the present invention is to provide a kind of Raman spectroscopy test device to quilt
It surveys object and causes the risk ignited or damaged.
To achieve the above object, the invention provides the following technical scheme:
A kind of Raman spectroscopy test device, including light generating unit, light transhipment department, light output part and signal receiving part, it is described
For light generating unit for generating light and projecting light onto the smooth transhipment department, the smooth transhipment department is defeated for propagating light to the light
Portion out, the light output part collect the scattering light that measured object is excited and generates for measured object to be focused and projected to light,
The scattering photogenerated spectrum number that scattering light propagation is received to the signal receiving part, the signal receiving part for basis
According to the light output part is also used to change the focus of output light to the distance of measured object.
Preferably, the light output part includes concentrating element, and the light output part is by changing the concentrating element to quilt
It surveys the distance of object and changes the focus of output light to the distance of measured object.
Preferably, the light output part includes telescopic probe, is changed by probe elongation or shortening defeated
Distance of the focus of light to measured object out.
It preferably, further include scattering be connected with the signal receiving part, for being measured according to the signal receiving part
Luminous intensity controls the control unit that the light output part changes distance of the focus of output light to measured object.
Preferably, if the scattered light intensity that the control unit is specifically used for signal receiving part measurement is greater than upper limit threshold
Value then controls the light output part and increases the focus of output light to the distance of measured object, if signal receiving part measurement dissipates
Luminous intensity is penetrated less than lower threshold, then controls the light output part and reduces the focus of output light to the distance of measured object, if described
The scattered light intensity of signal receiving part measurement is less than or equal to upper limit threshold and is more than or equal to lower threshold, then controls the light output
Portion does not change the focus of output light to the distance of measured object, and the upper limit threshold is greater than the lower threshold.
Preferably, the smooth transhipment department is dissipated for reflecting light to the light output part by what the light output part was collected
It penetrates light and travels to the signal receiving part after the smooth transhipment department.
Preferably, the smooth transhipment department includes dichroscope.
Preferably, the smooth generating unit is specifically used for the light of light source output carrying out shaping and expands processing.
Preferably, service band range covers ultraviolet light wave band, visible light wave range or infrared band.
As shown from the above technical solution, Raman spectroscopy test device provided by the present invention includes light generating unit, light transfer
Portion, light output part and signal receiving part, light generating unit generate light and project light onto light transhipment department, and light transhipment department propagates light to
Light output part, light output part focus to light and project measured object, and measured object is excited by output light and generates scattering light, light output
Portion collects the scattering light of measured object and propagates light to signal receiving part, and signal receiving part is according to the scattering photogenerated light received
Modal data, so that test obtains the Raman spectrum of measured object.Wherein, light output part can change the focus of output light to measured object
Distance, enable this Raman spectroscopy test device to adjust the energy density size that output light projects hot spot on measured object,
While enabling the light projected on measured object that measured object is made to generate sufficient intensity Raman signal, reduce in test to quilt
It surveys object and causes the risk ignited or damaged.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram of Raman spectroscopy test device provided in an embodiment of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The embodiment of the present invention provides a kind of Raman spectroscopy test device, including light generating unit, light transhipment department, light output part and
Signal receiving part, for the smooth generating unit for generating light and projecting light onto the smooth transhipment department, the smooth transhipment department is used for will
To the light output part, the light output part is used to focusing light and projecting measured object light propagation, and collects measured object and swashed
The scattering light sent out and generated will scatter light propagation to the signal receiving part, and the signal receiving part is used for what basis received
Photogenerated spectroscopic data is scattered, the light output part is also used to change the focus of output light to the distance of measured object.
Light output part focuses to light and projects measured object, and output illumination is mapped to measured object and excites to measured object,
Light output part collects the scattering light that measured object generates and propagates light to signal receiving part, and signal receiving part is dissipated according to what is received
Photogenerated spectroscopic data is penetrated, so that test obtains the Raman spectrum of measured object.In this Raman spectroscopy test device, light output part energy
Enough change output light focus to measured object distance, enable this Raman spectroscopy test device adjust output light project by
The energy density size for surveying hot spot on object enables the light projected on measured object that measured object is made to generate sufficient intensity Raman letter
Number while, reduce test when the risk ignited or damaged is caused to measured object.
This Raman spectroscopy test device is described in detail with reference to the accompanying drawings and detailed description.Referring to FIG. 1,
Fig. 1 is the schematic diagram of Raman spectroscopy test device provided in this embodiment, and as seen from the figure, this Raman spectroscopy test device includes light
Generating unit 10, light transhipment department 11, light output part 12 and signal receiving part 13.
In the specific implementation, light generating unit 10 is specifically used for the light of light source output carrying out shaping and expands processing, is formed
Meet necessarily required light beam and projects light transhipment department 11.Light generating unit 10 may include convex lens, concavees lens or diaphragm etc.
Optical element.
Light transhipment department 11 is for propagating light to light output part 12.Preferably in a kind of light path design, Fig. 1 institute is please referred to
Show, light transhipment department 11 is for reflecting light to the light output part 12, and the scattering light collected by the light output part 12 is by institute
The signal receiving part 13 is traveled to after stating light transhipment department 11.Optionally, dichroscope can be used in light transhipment department 11.
For measured object to be focused and projected to light, the focus that light output part 12 can change output light arrives light output part 12
The distance of measured object.Specifically, please referring to shown in Fig. 1, light output part 12 includes concentrating element 14, and light output part 12 passes through change
The concentrating element 14 to measured object distance and change the focus of output light to the distance of measured object.The output of light output part 12
Optical focus between concentrating element 14 and measured object, light output part 12 by change concentrating element to measured object distance thus
Change the distance for exporting optical focus to measured object.Optionally, if concentrating element 14 can be using lens either by dry lens structure
At optical module.
In the specific implementation, telescopic probe 15 can be used in light output part 12, is changed by the probe telescoping defeated
Distance of the focus of light to measured object out.By elongating or shortening probe, the outer end face that can adjust probe is popped one's head in and quilt
An end face of object fitting is surveyed to the distance of output optical focus, to realize the distance for adjusting output optical focus to measured object.
Light output part 12 is also used to collect the scattering light generated after measured object is excited, by scattering light propagation to the signal
Receiving unit 13, signal receiving part 13 are used for according to the scattering photogenerated spectroscopic data received.Signal receiving part 13 is based on light
Electric transfer principle detection light, and form spectroscopic data.
Further, the present embodiment Raman spectroscopy test device further includes the control unit 16 being connected with signal receiving part 13,
The scattered light intensity that control unit 16 is used to be measured according to the signal receiving part 13 controls the light output part 12 and changes output light
Focus to measured object distance.
If specifically, the scattered light intensity that the control unit 16 is specifically used for the signal receiving part 13 measurement is greater than the upper limit
Threshold value then controls the light output part 12 and increases the focus of output light to the distance of measured object, if the signal receiving part 13 is surveyed
The scattered light intensity of amount is less than lower threshold, then control the light output part 12 reduce the focus of output light to measured object away from
From if the scattered light intensity that the signal receiving part 13 measures is controlled less than or equal to upper limit threshold and more than or equal to lower threshold
It makes the light output part 12 and does not change the focus of output light to the distance of measured object.The upper limit threshold is greater than the lower limit threshold
Value, upper limit threshold and lower threshold can be accordingly arranged according to practical application.Therefore, this Raman spectroscopy test device can be intelligent
Change the light spot energy density that ground adjustment is irradiated to measured object, avoids the optical energy density for being irradiated to measured object excessively high and cause
Measured object is damaged.
Preferably, the service band range of the present embodiment Raman spectroscopy test device covers ultraviolet light wave band, visible light wave
Section or infrared band.
In the prior art, measured object is projected with the focus of light beam for solution Raman spectrum test equipment to be excited, hold
The problem of measured object is ignited or damaged is easily caused, adjusts excitation light intensity somewhat by the driving current of conditioning instrumentation light source
Degree, however this method requires hardware circuit to reserve electric current tuning function, and long term frequent adjust light source drive current,
Influence whether the service life of light source.And this Raman spectroscopy test device can adjust output light and project hot spot on measured object
Energy density size, make to project the luminous energy on measured object make measured object generate sufficient intensity Raman signal, but not ignite or
Person damages measured object, in contrast, it is not necessary to it is required that hardware circuit reserves electric current tuning function, also avoid continually adjusting light source
Driving current.
A kind of Raman spectroscopy test device provided by the present invention is described in detail above.Tool used herein
Principle and implementation of the present invention are described for body example, the above embodiments are only used to help understand this hair
Bright method and its core concept.It should be pointed out that for those skilled in the art, not departing from the present invention
, can be with several improvements and modifications are made to the present invention under the premise of principle, these improvement and modification also fall into right of the present invention
It is required that protection scope in.
Claims (9)
1. a kind of Raman spectroscopy test device, which is characterized in that connect including light generating unit, light transhipment department, light output part and signal
Receipts portion, for generating light and projecting light onto the smooth transhipment department, the smooth transhipment department is used for light propagation the smooth generating unit
To the light output part, the light output part collects measured object and is excited and produces for measured object to be focused and projected to light
Raw scattering light, by scattering light propagation to the signal receiving part, the signal receiving part is used for according to the scattering light received
Spectroscopic data is generated, the light output part is also used to change the focus of output light to the distance of measured object.
2. Raman spectroscopy test device according to claim 1, which is characterized in that the light output part includes focusing member
Part, the focus that the light output part changes output light by changing the distance of concentrating element to the measured object arrive measured object
Distance.
3. Raman spectroscopy test device according to claim 1, which is characterized in that the light output part includes telescopic
Probe, is extended by the probe or shortening changes the focus of output light to the distance of measured object.
4. Raman spectroscopy test device according to claim 1, which is characterized in that further include and the signal receiving part phase
The focus that the connect, scattered light intensity for being measured according to the signal receiving part controls the light output part change output light arrives
The control unit of the distance of measured object.
5. Raman spectroscopy test device according to claim 4, which is characterized in that if the control unit is specifically for described
The scattered light intensity of signal receiving part measurement is greater than upper limit threshold, then controls the light output part and increase the focus of output light to quilt
The distance of object is surveyed, if the scattered light intensity of signal receiving part measurement is less than lower threshold, the light output part is controlled and subtracts
The focus of small output light to measured object distance, if the signal receiving part measurement scattered light intensity be less than or equal to upper limit threshold
And be more than or equal to lower threshold, then control the light output part and do not change the focus of output light to the distance of measured object, it is described on
It limits threshold value and is greater than the lower threshold.
6. Raman spectroscopy test device according to claim 1-5, which is characterized in that the smooth transhipment department is used for
The light output part is reflected light to, the scattering light collected by the light output part travels to described after the smooth transhipment department
Signal receiving part.
7. Raman spectroscopy test device according to claim 6, which is characterized in that the smooth transhipment department includes dichroic
Mirror.
8. Raman spectroscopy test device according to claim 1, which is characterized in that the smooth generating unit is specifically used for light
The light of source output carries out shaping and expands processing.
9. Raman spectroscopy test device according to claim 1, which is characterized in that service band range covers ultraviolet light wave
Section, visible light wave range or infrared band.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910280603.4A CN109900677A (en) | 2019-04-09 | 2019-04-09 | A kind of Raman spectroscopy test device |
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| CN201910280603.4A CN109900677A (en) | 2019-04-09 | 2019-04-09 | A kind of Raman spectroscopy test device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7595873B1 (en) * | 2008-02-11 | 2009-09-29 | Thermo Electron Scientific Instruments Llc | Rapid spatial averaging over an extended sample in a Raman spectrometer |
| JP2011064536A (en) * | 2009-09-16 | 2011-03-31 | Toyota Industries Corp | Method, system and program for sample analysis |
| CN103439254A (en) * | 2013-09-06 | 2013-12-11 | 北京理工大学 | Spectroscopic pupil laser confocal Raman spectrum testing method and device |
| US20160091366A1 (en) * | 2014-09-25 | 2016-03-31 | Frank Jiann-Fu Yang | Auto-focus raman spectrometer system |
| CN106383105A (en) * | 2016-08-29 | 2017-02-08 | 上海交通大学 | Raman spectrum measuring device and method capable of automatically adjusting distance between device and measured sample |
| EP3182099A1 (en) * | 2015-12-16 | 2017-06-21 | rap.ID Particle Systems GmbH | System and method for confocal raman-spectroscopic measurements of biological samples |
| CN206292170U (en) * | 2016-12-26 | 2017-06-30 | 同方威视技术股份有限公司 | Article based on Raman spectrum checks equipment |
| CN107820567A (en) * | 2017-08-03 | 2018-03-20 | 深圳前海达闼云端智能科技有限公司 | Raman detection method, apparatus and storage medium |
| US20190033128A1 (en) * | 2017-07-25 | 2019-01-31 | Nuctech Company Limited | Raman spectrum inspection apparatus |
| CN209992398U (en) * | 2019-04-09 | 2020-01-24 | 杭州中车数字科技有限公司 | Raman spectrum testing device |
-
2019
- 2019-04-09 CN CN201910280603.4A patent/CN109900677A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7595873B1 (en) * | 2008-02-11 | 2009-09-29 | Thermo Electron Scientific Instruments Llc | Rapid spatial averaging over an extended sample in a Raman spectrometer |
| JP2011064536A (en) * | 2009-09-16 | 2011-03-31 | Toyota Industries Corp | Method, system and program for sample analysis |
| CN103439254A (en) * | 2013-09-06 | 2013-12-11 | 北京理工大学 | Spectroscopic pupil laser confocal Raman spectrum testing method and device |
| US20160091366A1 (en) * | 2014-09-25 | 2016-03-31 | Frank Jiann-Fu Yang | Auto-focus raman spectrometer system |
| EP3182099A1 (en) * | 2015-12-16 | 2017-06-21 | rap.ID Particle Systems GmbH | System and method for confocal raman-spectroscopic measurements of biological samples |
| US20170176320A1 (en) * | 2015-12-16 | 2017-06-22 | Rap.Id Particle Systems Gmbh | System and Method for Confocal Raman-Spectroscopic Measurements of Biological Samples |
| CN106383105A (en) * | 2016-08-29 | 2017-02-08 | 上海交通大学 | Raman spectrum measuring device and method capable of automatically adjusting distance between device and measured sample |
| CN206292170U (en) * | 2016-12-26 | 2017-06-30 | 同方威视技术股份有限公司 | Article based on Raman spectrum checks equipment |
| US20190033128A1 (en) * | 2017-07-25 | 2019-01-31 | Nuctech Company Limited | Raman spectrum inspection apparatus |
| CN107820567A (en) * | 2017-08-03 | 2018-03-20 | 深圳前海达闼云端智能科技有限公司 | Raman detection method, apparatus and storage medium |
| CN209992398U (en) * | 2019-04-09 | 2020-01-24 | 杭州中车数字科技有限公司 | Raman spectrum testing device |
Non-Patent Citations (1)
| Title |
|---|
| 化工仪器网-奥谱天成（厦门）光电有限公司: "拉曼光谱仪的使用怎样避免被测试的样品被激光烧毁", pages 1, Retrieved from the Internet <URL:https://www.chem17.com/Tech_news/detail/1448746.html> * |
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Address after: 310000 room 614-615, building 9, No. 20, kekeyuan Road, Baiyang street, Qiantang District, Hangzhou City, Zhejiang Province Applicant after: Zhongshu Zhike (Hangzhou) Technology Co.,Ltd. Address before: Room 414-417, building 4, No.2, kekeyuan Road, Baiyang street, Hangzhou Economic and Technological Development Zone, Hangzhou, Zhejiang 310000 Applicant before: CRRC HANGZHOU DIGITAL TECHNOLOGY Co.,Ltd. |
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Inventor after: Shi Jing Inventor after: Hua Daozhu Inventor before: Hua Daozhu Inventor before: Shi Jing |
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