CN209471053U - Handheld Raman spectrum detection instrument - Google Patents
Handheld Raman spectrum detection instrument Download PDFInfo
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- CN209471053U CN209471053U CN201920035834.4U CN201920035834U CN209471053U CN 209471053 U CN209471053 U CN 209471053U CN 201920035834 U CN201920035834 U CN 201920035834U CN 209471053 U CN209471053 U CN 209471053U
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- raman spectrum
- detection instrument
- spectrum detection
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Abstract
The utility model discloses a kind of Handheld Raman spectrum detection instruments, it include: laser generator, the first optical module, the second optical module and spectrometer, wherein, laser generator is for generating laser, first optical module is used to laser focusing to sample to be tested, and a long and narrow hot spot is formed on sample to be tested, the Raman heat dissipation light that the second optical module is used to generate on sample to be tested focuses in spectrometer.Cylindrical lens are arranged in the utility model, carry out shaping to laser beam, make to form the different angles of divergence in X, Y both direction perpendicular to direction of laser propagation.Since the laser beam after shaping has the different angles of divergence in the horizontal and vertical directions, the laser facula of a thin-and-long can be formed on sample to be tested after the focusing of the second optical lens.
Description
Technical field
The utility model relates to a kind of Handheld Raman spectrum detection instruments.
Background technique
Raman spectrum analysis is a kind of powerful nondestructive material detection and identification technology.Traditional Raman spectrometer volume is huge
Greatly, limiting them can be only applied in laboratory environment.Recently, with semiconductor laser excitation light source and CCD (Charged Couple
Device) array spectrometer development, Raman spectrometer has developed into handheld instrument, can be used to carry out field sampling point
Analysis.Since Ramam effect is a kind of very faint nonlinear effect, the million of the intensity of Raman light usually only excitating light strength
/ mono-.In order to obtain stronger Raman signal, it usually needs using the laser with relatively high power as excitation light source.
However, excessively high laser power density is possible to burn sample to be tested.
Utility model content
The utility model is in order to solve the above technical problems, provide a kind of Handheld Raman spectrum detection instrument.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of Handheld Raman spectrum detection instrument, comprising: laser generator, the first optical module, the second optical module and
Spectrometer, wherein laser generator is used to laser focusing to sample to be tested for generating laser, the first optical module, and
A long and narrow hot spot is formed on sample to be tested, the Raman heat dissipation light that the second optical module is used to generate on sample to be tested focuses to
In spectrometer.
An embodiment according to the present utility model, first optical module include: the first light being sequentially arranged
Learn lens, cylindrical lens, the first optical filter and the second optical lens, wherein the first optical lens and cylindrical lens alignment setting, first
Optical filter is obliquely installed, and the first optical filter makes the laser in cylindrical lens direction that can inject the second optical lens, the second optical lens
The laser in direction can inject the second optical module.
An embodiment according to the present utility model, first optical filter are color separation filter.
An embodiment according to the present utility model, second optical module include: the second optical filter and third
Optical lens, the second optical filter are aligned the setting of the first optical filter, and third optical lens is aligned the setting of the second optical filter, third optics
Lens are set to before spectrometer.
An embodiment according to the present utility model further includes central processing unit, central processing unit and spectrometer and is swashed
Optical generator is connected.
An embodiment according to the present utility model further includes shell, laser generator, the first optical module, second
Optical module, spectrometer and central processing unit are all set in shell, and the one protrusion cavity of end setting of shell, protrusion cavity is used
In accommodating the second optical lens.
An embodiment according to the present utility model, the laser generator stablize output using volume Bragg grating
Semiconductor laser.
An embodiment according to the present utility model, further includes touch display screen, touch display screen is set to shell
Surface, touch display screen are connected with central processing unit, and touch display screen is organic light-emitting diode (OLED) display screen.
An embodiment according to the present utility model, further includes microphone, and microphone is set to surface of shell, microphone
It is connected with central processing unit.
An embodiment according to the present utility model further includes condenser type writing pen, and condenser type writing pen is for touching
It touches and is operated on display screen.
An embodiment according to the present utility model, further includes code reader, and code reader is set to surface of shell, code reader
It is connected with central processing unit.
An embodiment according to the present utility model, further includes wireless communication module, wireless communication module is set to shell
In vivo, wireless communication module is connected with central processing unit, and wireless communication module is connected with external data center.
An embodiment according to the present utility model, the wireless communication module and outer remote control unit phase
Even.
An embodiment according to the present utility model, the outer remote control unit include computer, mobile phone.
An embodiment according to the present utility model, the wireless communication module are bluetooth, Wi-Fi or honeycomb.
An embodiment according to the present utility model, further includes imaging sensor, and imaging sensor is set to shell table
Face, imaging sensor are connected with wireless communication module.
An embodiment according to the present utility model, the imaging sensor includes digital camera.
An embodiment according to the present utility model, further includes alignment sensor, alignment sensor is set in shell
Or surface of shell.
The length-width ratio of an embodiment according to the present utility model, the long and narrow hot spot is greater than 2.
The length-width ratio of an embodiment according to the present utility model, the long and narrow hot spot is greater than 5.
Cylindrical lens are arranged in the utility model, carry out shaping to laser beam, make X, Y two perpendicular to direction of laser propagation
Side is upwardly formed the different angles of divergence.Since the laser beam after shaping has different divergings in the horizontal and vertical directions
Angle can form the laser facula of a thin-and-long after the focusing of the second optical lens on sample to be tested.With focus on a bit
Laser facula compare, the power density of the thin-and-long laser facula of the utility model is substantially reduced, and is thus greatly reduced sharp
Light burns a possibility that sample.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of embodiment 2.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing:
Embodiment 1
As shown in Figure 1, the present embodiment Handheld Raman spectrum detection instrument, comprising: laser generator 104, the first optics group
Part, the second optical module and spectrometer 107, wherein for laser generator 104 for generating laser, the first optical module is used for will
Laser focuses on sample to be tested 103, and a long and narrow hot spot is formed on sample to be tested 103, and the second optical module is for will be to
The Raman heat dissipation light generated in sample 103 focuses in spectrometer 107.Spectrometer 107 is ccd array spectrometer.
First optical module includes: the first optical lens 1061 being sequentially arranged, the optical filtering of cylindrical lens 1066, first
Piece 1062 and the second optical lens 1063, wherein the first optical lens 1061 and the alignment setting of cylindrical lens 1066, the first optical filter
1062 are obliquely installed, and the first optical filter 1062 makes the laser in 1066 direction of cylindrical lens that can inject the second optical lens 1063,
The laser in two optical lenses, 1063 direction can inject the second optical module.The cylindrical lens 1066 are cuboid.Described
One optical filter 1062 is color separation filter.
Second optical module includes: the second optical filter 1064 and third optical lens 1065, the second optical filter
1064 alignment the first optical filter 1062 settings, third optical lens 1065 are aligned the setting of the second optical filter 1064, third optical lens
Mirror 1065 is set to before spectrometer 107.Second optical filter 1064 is long wave pass filter.
The input mouth-shaped and the second optical lens 1063 of the spectrometer 107 focus to the light on sample to be tested 103
Shape of spot is adapted.
The present embodiment further includes that central processing unit 120, abbreviation CPU, central processing unit 120 and spectrometer 107 and laser are sent out
Raw device 104 is connected.The present embodiment further includes shell 102, laser generator 104, the first optical module, the second optical module, light
Spectrometer 107 and central processing unit 120 are all set in shell 102, and the one protrusion cavity of end setting of shell 102 protrudes cavity
For accommodating the second optical lens 1063.
The laser generator 104 stablizes the semiconductor laser of output, the preferably U.S. using volume Bragg grating
The semiconductor that output wavelength described in patent of invention 7,245,369 and breadth of spectrum line are stablized and narrowed by volume Bragg grating swashs
Light device.The wavelength of the semiconductor laser may be selected to be the suitable wavelength of 785nm or 1064nm or other.
The present embodiment further includes touch display screen 108, and touch display screen 108 is set to the surface of shell 102, touches display
Screen 108 is connected with central processing unit 120, and touch display screen 108 is organic light-emitting diode (OLED) display screen.The present embodiment further includes wheat
Gram wind 114, microphone 114 are set to 102 surface of shell, and microphone 114 is connected with central processing unit 120.The present embodiment also wraps
Condenser type writing pen is included, condenser type writing pen in touch display screen 108 for operating.The present embodiment further includes code reader 115,
Code reader 115 is set to 102 surface of shell, and code reader 115 is connected with central processing unit 120.
The present embodiment further includes wireless communication module 116, and wireless communication module 116 is set in shell 102, wireless communication
Module 116 is connected with central processing unit 120, and wireless communication module 116 is connected with external data center.The radio communication mold
Block 116 is connected with outer remote control unit.The outer remote control unit includes computer, mobile phone.The channel radio
Believe that module 116 is bluetooth, Wi-Fi or honeycomb.
The present embodiment further includes imaging sensor 117, and imaging sensor 117 is set to 102 surface of shell, imaging sensor
117 are connected with wireless communication module 116.The imaging sensor 117 includes digital camera.The present embodiment further includes that positioning passes
Sensor 118, alignment sensor 118 is set in shell 102 or 102 surface of shell.The utility model is powered using battery 110.
In use, user is ordered by touch display screen 108 or microphone 114, central processing unit 120 is controlled
Laser occurs for laser generator 104, and laser is collected and collimated by the first optical lens 1061, and collimated laser is saturating by column
Mirror 1066 forms laser in X, Y both direction perpendicular to direction of laser propagation respectively different to carry out shaping to laser
The angle of divergence, that is to say, that the direction of propagation of laser is the Z axis in three-dimensional coordinate, then after 1066 shaping of cylindrical lens, is swashed
Light forms the different angles of divergence in the X-axis and Y-axis both direction in three-dimensional coordinate.Shaped the first optical filter of laser light
1062 are incident on the second optical lens 1063 and are focused on sample to be tested 103 by the second optical lens 1063 with from sample to be tested
103 excitation Raman diffused lights.Since the laser after shaping has the different angles of divergence in the horizontal and vertical directions, by the
Two optical lenses 1063 can form the laser facula of a thin-and-long on sample to be tested 103 after focusing.With focus on any swash
Light hot spot is compared, and the power density of the thin-and-long laser facula is substantially reduced, and thus greatly reduce laser burnout sample can
It can property.
Laser after focusing excites Raman diffused light from the sample to be tested 103 irradiated, and the Raman diffused light is by second
A optical lens 1063 reflected after collecting and collimating by the first optical filter 1062 with filter out Rayleigh scattering and by sample to be tested 103 it is anti-
The laser penetrated.The second optical filter 1064 after the first optical filter 1062 is auspicious for further filtering out from Raman diffused light
Benefit scattering.Filtered Raman diffused light focuses on the input slit of spectrometer 107 through third optical lens 1065 and forms one
The Raman diffused light hot spot of thin-and-long.The shape of the thin-and-long Raman diffused light hot spot is designed as and 107 input slit of spectrometer
Shape match, to improve spectrometer 107 to the full extent to the collection efficiency of Raman diffused light.Spectrometer 107 is right
The Raman diffused light being collected into carries out spectrum analysis to obtain the Raman spectrum of sample to be tested 103.Spectrometer 107 in the present embodiment
The laser facula on Raman diffused light hot spot and sample to be tested 103 on input slit is of similar shape and length-width ratio.For
Achieve the purpose that the shape of Raman diffused light hot spot and the shape of 107 input slit of spectrometer is made to match, laser facula
Length-width ratio at least should be greater than 2, can be 2.1,3 or 4, ideally should be greater than 5, can be 5.1,6 or 7, with maximum
Spectrometer 107 is improved in degree to the collection efficiency of Raman diffused light.
User interface of the touch display screen 108 as display Raman spectrum and reception user's input.Touch display screen
108 preferably without backlight with regard to workable organic light-emitting diode (OLED) display screen.The touch display screen 108 has faster display
Speed, wider visual angle, more accurate color rendition, outstanding contrast and higher brightness, allow to be used for black
Dark and bright light environments.Moreover, the low-power consumption of organic light-emitting diode (OLED) display screen further extends the battery life of the present embodiment.
Other functions, such as the letter of browsing listed files, the scaling of spectrum, input spectrum can also be realized using touch display screen 108
Breath, browsing custom menu and offer help on-line information etc..
In addition, the present embodiment can also be equipped with microphone 114 to realize that voice inputs.After the spoken command of user is by identification
Compared with spectral measurement and the familiar instruction set of analysis, and show the instruction list most to match for selection by the user.Voice
Identification and input system use the prior art.The setting of spectrometer, such as the input of laser power, the data of the time of integration can be with
Similar mode carries out.In addition to voice entry system, the present embodiment can be equipped with condenser type writing pen, virtual to assist user to pass through
Keyboard or handwritten character recognizing system carry out data and text input.In order to be further reduced the burden of data inputting, this implementation
Example is equipped with code reader 115 to read in the related data of the sample to be tested 103 with bar code or two dimensional code.Sample to be tested 103
Raman spectrum can combine with its bar code or two-dimensional barcode information, to carry out Put on file.
The present embodiment further includes wireless communication module 116.Module 116 by wireless communication, the present embodiment can will obtain
Raman spectrum be transferred to external data center and analyzed, and compared with spectra database, with the identification of complete paired samples.
This method allows spectra database to be stored in external data center in the present embodiment, largely deposits to save
Store up space.The present embodiment is remotely controlled in addition, outer remote control unit can be used by wireless communication.It is external remote
Process control unit may include tablet computer or smart mobile phone etc..In order to monitor the state of sample to be tested 103, the present embodiment can also match
Standby imaging sensor 117 is to acquire the image of sample 103 and module 116 sends images to outer remote control by wireless communication
On unit processed.The present embodiment may also include an alignment sensor 118, such as GPS sensor, to determine its geographical location.It obtains
Geographical location information can report control centre, so that the Raman spectrum of sample 103 and its geographical location be connected.
Embodiment 2
As shown in Fig. 2, the present embodiment does not include touch display screen 108, but module 116 is remote with outside by wireless communication
Process control unit 112 carries out wireless communication, and shows that Raman spectrum and reception user are defeated by the outer remote control unit 112
Enter the manipulation to the present embodiment.Bluetooth, Wi-Fi or honeycomb etc. can be used in wireless communication module 116.Outer remote control unit
112 may include tablet computer or smart mobile phone etc..Other parts are same as Example 1.
Cylindrical lens 1066 are arranged in the utility model, carry out shaping to laser beam, make X, Y perpendicular to direction of laser propagation
The different angles of divergence is formed in both direction.Since the laser beam after shaping has different hairs in the horizontal and vertical directions
Angle is dissipated, the laser facula of a thin-and-long can be formed on sample to be tested 103 after the focusing of the second optical lens 1063.With it is poly-
The burnt laser facula to any is compared, and the power density of the thin-and-long laser facula of the utility model is substantially reduced, thus significantly
A possibility that reducing laser burnout sample.
The embodiments of the present invention are only used for being illustrated the utility model, do not constitute to scope of the claims
Limitation, other substantially equivalent substitutions that those skilled in that art are contemplated that, in scope of protection of the utility model
It is interior.
Claims (19)
1. a kind of Handheld Raman spectrum detection instrument characterized by comprising laser generator, the first optical module, the second light
Learn component and spectrometer, wherein laser generator is for generating laser, and the first optical module is for focusing to laser to test sample
On product, and a long and narrow hot spot is formed on sample to be tested, the second optical module is used to radiate the Raman generated on sample to be tested
Light focuses in spectrometer.
2. Handheld Raman spectrum detection instrument according to claim 1, which is characterized in that the first optical module packet
Include: the first optical lens, cylindrical lens, the first optical filter and the second optical lens being sequentially arranged, wherein the first optical lens and
Cylindrical lens alignment setting, the first optical filter are obliquely installed, and the first optical filter makes the laser in cylindrical lens direction that can inject the second light
Learn lens, the laser in the second optical lens direction can inject the second optical module.
3. Handheld Raman spectrum detection instrument according to claim 2, which is characterized in that first optical filter is point
Colo(u)r filter.
4. Handheld Raman spectrum detection instrument according to claim 1,2 or 3, which is characterized in that second optics
Component includes: the second optical filter and third optical lens, and the second optical filter is aligned the setting of the first optical filter, third optical lens pair
Neat second optical filter setting, third optical lens are set to before spectrometer.
5. Handheld Raman spectrum detection instrument according to claim 1, which is characterized in that it further include central processing unit, in
Central processor is connected with spectrometer and laser generator.
6. Handheld Raman spectrum detection instrument according to claim 5, which is characterized in that further include shell, laser occurs
Device, the first optical module, the second optical module, spectrometer and central processing unit are all set in shell, the end setting of shell
One protrusion cavity, protrusion cavity is for accommodating the second optical lens.
7. according to claim 1, Handheld Raman spectrum detection instrument described in 5 or 6, which is characterized in that the laser occurs
Device stablizes the semiconductor laser of output using volume Bragg grating.
8. Handheld Raman spectrum detection instrument according to claim 5, which is characterized in that it further include touch display screen, touching
The surface that display screen is set to shell is touched, touch display screen is connected with central processing unit, and touch display screen is organic light-emitting diodes
Tube display screen.
9. Handheld Raman spectrum detection instrument according to claim 5, which is characterized in that further include microphone, microphone
It is set to surface of shell, microphone is connected with central processing unit.
10. Handheld Raman spectrum detection instrument according to claim 8, which is characterized in that it further include condenser type writing pen,
Condenser type writing pen in touch display screen for operating.
11. Handheld Raman spectrum detection instrument according to claim 5, which is characterized in that further include code reader, code reader
It is set to surface of shell, code reader is connected with central processing unit.
12. Handheld Raman spectrum detection instrument according to claim 6, which is characterized in that it further include wireless communication module,
Wireless communication module is set in shell, and wireless communication module is connected with central processing unit, wireless communication module and external data
Center is connected.
13. Handheld Raman spectrum detection instrument according to claim 12, which is characterized in that the wireless communication module
It is connected with outer remote control unit.
14. Handheld Raman spectrum detection instrument according to claim 12, which is characterized in that the wireless communication module
For bluetooth, Wi-Fi or honeycomb.
15. Handheld Raman spectrum detection instrument according to claim 6, which is characterized in that it further include imaging sensor, at
As sensor is set to surface of shell, imaging sensor is connected with wireless communication module.
16. Handheld Raman spectrum detection instrument according to claim 15, which is characterized in that the imaging sensor packet
Include digital camera.
17. Handheld Raman spectrum detection instrument according to claim 6, which is characterized in that it further include alignment sensor, it is fixed
Level sensor is set in shell or surface of shell.
18. Handheld Raman spectrum detection instrument according to claim 4, which is characterized in that the length of the long and narrow hot spot
Wide ratio is greater than 2.
19. Handheld Raman spectrum detection instrument according to claim 18, which is characterized in that the length of the long and narrow hot spot
Wide ratio is greater than 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920035834.4U CN209471053U (en) | 2019-01-09 | 2019-01-09 | Handheld Raman spectrum detection instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920035834.4U CN209471053U (en) | 2019-01-09 | 2019-01-09 | Handheld Raman spectrum detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209471053U true CN209471053U (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920035834.4U Active CN209471053U (en) | 2019-01-09 | 2019-01-09 | Handheld Raman spectrum detection instrument |
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| Country | Link |
|---|---|
| CN (1) | CN209471053U (en) |
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2019
- 2019-01-09 CN CN201920035834.4U patent/CN209471053U/en active Active
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