CN207007707U - A kind of near-infrared spectrometers based on dmd chip - Google Patents
A kind of near-infrared spectrometers based on dmd chip Download PDFInfo
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- CN207007707U CN207007707U CN201720640220.XU CN201720640220U CN207007707U CN 207007707 U CN207007707 U CN 207007707U CN 201720640220 U CN201720640220 U CN 201720640220U CN 207007707 U CN207007707 U CN 207007707U
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- light source
- dmd chip
- infrared spectrometers
- rotation platform
- spectrometers based
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Abstract
The utility model provides a kind of near-infrared spectrometers based on dmd chip, including spectrometer body；Spectrometer body includes rotation platform, light source module, main control unit；Rotary drive is installed in rotation platform；Spectrometer body upper surface is provided with mounting groove；Rotation platform is installed on mounting groove；Light source module includes light source, the first condenser lens；Main control unit includes collimation lens set, grating, imaging lens group, dmd chip, the second focus lens group, single point detector, signal processing system.The utility model samples uniformly continuous, automaticity is high using the spectral information in automatic rotation structure collection testing sample.The utility model is rational in infrastructure, ingenious in design, practical, is easy to promote.
Description
Technical field
It the utility model is related to a kind of spectroanalysis instrument, more particularly to a kind of near-infrared spectrum analysis based on dmd chip
Instrument.
Background technology
Spectroanalysis instrument, it is a kind of instrument for being used to measure the radiation spectrum, the i.e. index parameter of illuminator in itself of illuminator
Device.Because near infrared light has a good transmission characteristic in routine, and its instrument is relatively simple, analyze speed is fast, non-destructive and
Sample preparation amount is small, is almost adapted to all kinds of sample (liquid, viscous body, coating, powder and solid) analyses, multicomponent multichannel same
When the features such as determining, turn into a wonderful work in on-line analysis instrument.In recent years, with Chemical Measurement, optical fiber and computer
The development of technology, On-line NIR analytical technology just with surprising rapidity be applied to include agriculture and animal husbandry, food, chemical industry, petrochemical industry,
Many fields including pharmacy, tobacco etc., a very wide use is provided for the control of scientific research, teaching and production process
Space.Spectroanalysis instrument is applied to Ferrous Metallurgy, non-ferrous metal, petrochemical industry, machine-building, electricity power, railway transportation, boat
The every field such as empty space flight, food hygiene, environmental protection and teaching and scientific research.
Generally require to adopt but common spectroanalysis instrument is complicated, and acquisition mode is fixed, during spectrum analysis to liquid
Collect the sample spectrum information of multiple positions, gatherer process is cumbersome and automaticity is low, is badly in need of a kind of automaticity height, can connect
The spectrometric instrument of continuous collection.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of near red based on dmd chip
External spectrum analyzer, continuous acquisition sample diverse location spectral information, automaticity are high.
The utility model provides a kind of near-infrared spectrometers based on dmd chip, including spectrometer body；Described
Spectrometer body includes rotation platform, light source module, main control unit；Rotary drive is installed in described rotation platform；
Described spectrometer body upper surface is provided with mounting groove；Described rotation platform is installed on described mounting groove；Described light
Source module includes light source, the first condenser lens；Described main control unit include collimation lens set, grating, imaging lens group,
Dmd chip, the second focus lens group, single point detector, signal processing system；
Testing container containing testing sample is positioned on described testing container, described in the driving of described rotary drive
Rotation platform rotation；Described light source sends detection light beam, and the detection window being provided with by described rotation platform is with treating
The bottom plate of xylometer bottom is injected in testing sample；After bottom plate, detection window being passed through after testing sample absorbs and reflects successively
Converged by the first described condenser lens, then converged after passing sequentially through described collimation lens set, grating and imaging lens group,
The picture of the slit of different wave length is formed on the dmd chip, by described second after the dmd chip carries out wavelength gating
Focus lens group focuses on described single point detector；The single point detector sends the optical signal of reception to the signal
Reason system, the described optical signal of described signal processing system analyzing and processing.
Further, described rotation platform also includes bearing；Described rotation platform by described bearing with it is described
Mounting groove inwall connection.
Further, described spectrometer body also includes optical fiber；Described light source module and described described master control
Unit processed is connected by described optical fiber.
Further, described spectrometer body also includes control button；Described light source module also includes light source control
Circuit board；Described control button respectively with described control circuit for light source plate, described rotary drive, described DMD cores
Piece electrically connects；Described control circuit for light source plate electrically connects with described light source.
Further, described detection window and described bottom plate are specially transparent glass.
Further, described single point detector is single-point photodiode.
Further, the quantity of described light source is two or more.
Further, the light source described in two is symmetrical on the first described condenser lens.
Further, described light source is specially Nernst glower and Elema.
Compared with prior art, the beneficial effects of the utility model are：
The utility model provides a kind of near-infrared spectrometers based on dmd chip, including spectrometer body；Spectrometer
Body includes rotation platform, light source module, main control unit；Rotary drive is installed in rotation platform；On spectrometer body
Surface is provided with mounting groove；Rotation platform is installed on mounting groove；Light source module includes light source, the first condenser lens；Main control list
Member includes collimation lens set, grating, imaging lens group, dmd chip, the second focus lens group, single point detector, signal transacting system
System.The utility model samples uniformly continuous, automaticity using the spectral information in automatic rotation structure collection testing sample
It is high.The utility model is rational in infrastructure, ingenious in design, practical, is easy to promote.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.Specific embodiment of the present utility model is shown in detail by following examples and its accompanying drawing.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is a kind of entirety sectional view of the near-infrared spectrometers based on dmd chip of the present utility model；
Fig. 2 is a kind of near-infrared spectrometers broken section Fig. 1 based on dmd chip of the present utility model；
Fig. 3 is a kind of near-infrared spectrometers broken section Fig. 2 based on dmd chip of the present utility model；
Fig. 4 is a kind of near-infrared spectrometers top view based on dmd chip of the present utility model.
In accompanying drawing, spectrometer body 1, mounting groove 11, control button 12, testing container 2, bottom plate 21, rotation platform 3, axle
Hold 31, detection window 32, light source module 4, light source 41, the first condenser lens 42, control circuit for light source plate 43, optical fiber 5, main control
Unit 6, collimation lens set 61, grating 62, imaging lens group 63, dmd chip 64, the second focus lens group 65, single point detector
66。
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further, it is necessary to explanation is,
On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
A kind of near-infrared spectrometers based on dmd chip, as shown in Figure 1-Figure 3, including spectrometer body 1；Spectrum
Instrument body 1 includes rotation platform 3, light source module 4, main control unit 6；Rotary drive is installed in rotation platform 3；Spectrometer
The upper surface of body 1 is provided with mounting groove 11；Rotation platform 3 is installed on mounting groove 11；Light source module 4 is poly- including light source 41, first
Focus lens 42；Main control unit 6 includes collimation lens set 61, grating 62, imaging lens group 63, dmd chip 64, second and focused on thoroughly
Microscope group 65, single point detector 66, signal processing system；In one embodiment, spectrometer body 1 also includes optical fiber 5；Light source module
4 are connected with main control unit 6 by optical fiber 5.
As shown in Figure 2 and Figure 3, the testing container 2 containing testing sample is positioned on testing container 2, rotary drive driving
Rotation platform 3 rotates；Light source 41 sends detection light beam, passes through the detection window 32 that rotation platform 3 is provided with and the bottom of testing container 2
The bottom plate 21 in portion is injected in testing sample；Successively through logical after bottom plate 21, detection window 32 after testing sample absorbs and reflects
The first condenser lens 42 is crossed to converge, by optical fiber 5 by optical signal transmission into main control unit 6, then pass sequentially through collimation lens
Converged after group 61, grating 62 and imaging lens group 63, the picture of the slit of different wave length is formed on dmd chip 64, through dmd chip
Single point detector 66 is focused on by the second focus lens group 65 after 64 progress wavelength gatings；Single point detector 66 believes the light of reception
Number send to signal processing system, signal processing system analyzing and processing optical signal.In one embodiment, single point detector 66 is single
Point photodiode, the quantity of light source 41 is two, and two light sources 41 are symmetrical on the first condenser lens 42, and light source 41 is specially energy
This special lamp and Elema.
In one embodiment, specifically, rotation platform 3 also includes bearing 31；Rotation platform 3 passes through bearing 31 and mounting groove
11 inwalls connect, and detection window 32 is specially transparent glass with bottom plate 21.
As shown in figure 4, in one embodiment, spectrometer body 1 also includes control button 12；Light source module 4 also includes light
Source control circuit plate 43；Control button 12 electrically connects with control circuit for light source plate 43, rotary drive, dmd chip 64 respectively；Light
Source control circuit plate 43 electrically connects with light source 41.
The utility model provides a kind of near-infrared spectrometers based on dmd chip, including spectrometer body；Spectrometer
Body includes rotation platform, light source module, main control unit；Rotary drive is installed in rotation platform；On spectrometer body
Surface is provided with mounting groove；Rotation platform is installed on mounting groove；Light source module includes light source, the first condenser lens；Main control list
Member includes collimation lens set, grating, imaging lens group, dmd chip, the second focus lens group, single point detector, signal transacting system
System.The utility model samples uniformly continuous, automaticity using the spectral information in automatic rotation structure collection testing sample
It is high.The utility model is rational in infrastructure, ingenious in design, practical, is easy to promote.
More than, preferred embodiment only of the present utility model, not make any formal limit to the utility model
System；The those of ordinary skill of all industry can swimmingly implement the utility model shown in by specification accompanying drawing and above；But
It is that all those skilled in the art are not being departed from the range of technical solutions of the utility model, utilizes disclosed above skill
Art content and the equivalent variations of a little variation, modification and evolution made, are equivalent embodiment of the present utility model；Meanwhile
All variation, modification and evolution of any equivalent variations made according to substantial technological of the present utility model to above example etc.,
Still fall within the protection domain of the technical solution of the utility model.
Claims (9)
1. a kind of near-infrared spectrometers based on dmd chip, including spectrometer body, it is characterised in that：Described spectrum
Instrument body includes rotation platform, light source module, main control unit；Rotary drive is installed in described rotation platform；It is described
Spectrometer body upper surface be provided with mounting groove；Described rotation platform is installed on described mounting groove；Described light source die
Block includes light source, the first condenser lens；Described main control unit includes collimation lens set, grating, imaging lens group, DMD cores
Piece, the second focus lens group, single point detector, signal processing system；
Testing container containing testing sample is positioned on described testing container, the described rotation of described rotary drive driving
Turn platform rotation；Described light source sends detection light beam, passes through the detection window that described rotation platform is provided with and appearance to be measured
The bottom plate of device bottom is injected in testing sample；Pass through after passing through bottom plate, detection window successively after testing sample absorbs and reflects
Described the first condenser lens convergence, then converged after passing sequentially through described collimation lens set, grating and imaging lens group, in institute
The picture for the slit that different wave length is formed on dmd chip is stated, is focused on after the dmd chip carries out wavelength gating by described second
Lens group focuses on described single point detector；The single point detector sends the optical signal of reception to the signal transacting system
System, the described optical signal of described signal processing system analyzing and processing.
A kind of 2. near-infrared spectrometers based on dmd chip as claimed in claim 1, it is characterised in that：Described rotation
Turning platform also includes bearing；Described rotation platform is connected by described bearing with described mounting groove inwall.
A kind of 3. near-infrared spectrometers based on dmd chip as claimed in claim 1, it is characterised in that：Described light
Spectrometer body also includes optical fiber；Described light source module is connected with described described main control unit by described optical fiber.
A kind of 4. near-infrared spectrometers based on dmd chip as claimed in claim 1, it is characterised in that：Described light
Spectrometer body also includes control button；Described light source module also includes control circuit for light source plate；Described control button difference
Electrically connected with described control circuit for light source plate, described rotary drive, described dmd chip；Described light source control electricity
Road plate electrically connects with described light source.
A kind of 5. near-infrared spectrometers based on dmd chip as described in any one of Claims 1-4, it is characterised in that：
Described detection window is specially transparent glass with described bottom plate.
A kind of 6. near-infrared spectrometers based on dmd chip as claimed in claim 5, it is characterised in that：Described list
Point probe is single-point photodiode.
A kind of 7. near-infrared spectrometers based on dmd chip as claimed in claim 5, it is characterised in that：Described light
The quantity in source is two or more.
A kind of 8. near-infrared spectrometers based on dmd chip as claimed in claim 7, it is characterised in that：Described in two
Light source is symmetrical on the first described condenser lens.
A kind of 9. near-infrared spectrometers based on dmd chip as claimed in claim 7 or 8, it is characterised in that：Described
Light source is specially Nernst glower and Elema.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640220.XU CN207007707U (en) | 2017-06-02 | 2017-06-02 | A kind of near-infrared spectrometers based on dmd chip |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720640220.XU CN207007707U (en) | 2017-06-02 | 2017-06-02 | A kind of near-infrared spectrometers based on dmd chip |
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| CN207007707U true CN207007707U (en) | 2018-02-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406449A (en) * | 2018-11-22 | 2019-03-01 | 中国科学院合肥物质科学研究院 | A kind of portable near infrared spectrometer |
| CN111189795A (en) * | 2020-02-27 | 2020-05-22 | 南京农业大学 | Portable grain quality on-line measuring device based on near infrared spectrum |
-
2017
- 2017-06-02 CN CN201720640220.XU patent/CN207007707U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406449A (en) * | 2018-11-22 | 2019-03-01 | 中国科学院合肥物质科学研究院 | A kind of portable near infrared spectrometer |
| CN111189795A (en) * | 2020-02-27 | 2020-05-22 | 南京农业大学 | Portable grain quality on-line measuring device based on near infrared spectrum |
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