CN106959282A - A kind of solid on-line measuring device based on near-infrared spectrum technique - Google Patents
A kind of solid on-line measuring device based on near-infrared spectrum technique Download PDFInfo
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- CN106959282A CN106959282A CN201710105624.3A CN201710105624A CN106959282A CN 106959282 A CN106959282 A CN 106959282A CN 201710105624 A CN201710105624 A CN 201710105624A CN 106959282 A CN106959282 A CN 106959282A
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- solid
- measuring device
- line measuring
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- 239000007787 solid Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000002329 infrared spectrum Methods 0.000 title claims abstract description 9
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 238000001228 spectrum Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000009897 systematic effect Effects 0.000 claims description 2
- 235000013312 flour Nutrition 0.000 abstract description 5
- 240000007594 Oryza sativa Species 0.000 abstract description 2
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 2
- 235000009566 rice Nutrition 0.000 abstract description 2
- 238000004458 analytical method Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
Abstract
The present invention provides a kind of solid on-line measuring device based on near-infrared spectrum technique, including moveable casing, and the sampling system being placed on the casing, sample transport system, sample pretreatment system, optical system and sample negative pressure recovery system, the sample transport system covers the first station, second station, 3rd station and the 4th station, the sampling system is used to the sample on production line delivering to the first station, sample is pulverized and is compacted in the second station by the sample pretreatment system, the optical system is used to carry out diffusing reflection spectrum collection to the sample in 3rd station, the sample negative pressure recovery system is used to discharge in the sample on the 4th station.It apparatus of the present invention highly versatile and can move freely, be easily installed by the production conveyer belt such as similar rice, flour, feed and carry out quick, accurate, contamination-freely on-line checking.
Description
Technical field
The present invention relates to on-line analysis detection technique field, and in particular to a kind of solid based on near-infrared spectrum technique exists
Line detector, for a variety of quality parameters to a variety of online production solids to be lossless, quickly and accurately automatic detection.
Background technology
With the continuous improvement in production process to Dynamic matrix control requirement, Entry Firm is produced in-line analyzer more and more widely
Links, it can provide data accurately and in time, can to raw material and production intermediate link be monitored.In recent years, closely
Infrared spectrum technology is as a kind of green analytical technology, because its measurement accuracy is high, analyze speed is fast, Multiple components are while can
The advantages of survey, is developed rapidly in many association areas.
Compared with fluid sample, solid sample is increasingly complex, with higher heterogeneity；In addition, solid powder is
It is compressible, when measuring it ensure optical density and light path it is constant be it is extremely difficult, filling tightness degree can significantly affect light
Scattering and the penetration depth of light.Therefore, the on-line analysis to solid sample is particularly difficult.
At present, generally directed to different on-line checking situations（Different samples, different geometries and different particles
Diameter）, all kinds of engineering staffs have built different on-line period and test device.Such as, Japanese Nisshin Flour Milling Co opens
A kind of device for Flour production process on-line analysis is sent out, by quantitative sampling and supply unit and sample preparation and analytic unit
Two parts are constituted, and first with main pipeline taking-up sample of the sampler from flour pneumatic conveying is asked for, are deviate from through cyclone separator
Gas enters volume regulator, to ensure to get sufficient amount of sample, then passes through pneumatic conveying to second whirlwind point again
Enter sample preparation unit from the solid sample in device, separated, and entered by the diffusing reflection formula near infrared spectrometer being mounted above
Row analysis.After measurement terminates, conveying device is switched on, and sample is discharged, and is come back in main pipeline.
Then, the big flexible of existing apparatus is not strong, and measurement scene is single, and higher to detection sample requirement, Hen Duoyuan
Beginning sample is not preprocessed can not to carry out on-line checking；And because sample size is different, light is focused on and light path one in measurement process
Cause property can not ensure that is, accuracy of detection has much room for improvement.
The content of the invention
The present invention provides a kind of on-line measuring device based on near-infrared spectrum technique for solid sample, and the device leads to
It is strong and can move freely with property, it is adaptable to the on-line measuring device of solid sample, may be such that whole sampling, pretreatment, detection,
Analysis and removal process is controllable and serialization, be easily installed by the production conveyer belt such as similar rice, flour, feed carry out it is fast
Speed, accurate, contamination-freely on-line checking.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of solid on-line measuring device based on near-infrared spectrum technique, including moveable casing, and it is placed in the casing
On sampling system, sample transport system, sample pretreatment system, optical system and sample negative pressure recovery system, the sample
Transport system covers the first station, the second station, 3rd station and the 4th station, and the sampling system is used for production line
Sample deliver to the first station, sample is pulverized and is compacted in the second station by the sample pretreatment system, the optical system
For carrying out diffusing reflection spectrum collection to the sample in 3rd station, the sample negative pressure recovery system is used for the 4th station
Sample discharge.
The sampling system includes mechanical arm, is arranged on the adsorbing mechanism that mechanical arm front end can freely stretch, Yi Jian
Main shaft on casing, the mechanical arm can rotate freely to production line negative pressure absorbing sample and rotation to the first work around main shaft
Place sample in position top.
The sample pretreatment system uses vertically-mounted cylinder assembly.
The optical system includes light-source system, spectra collection system and near infrared spectrometer, wherein spectra collection system
The diffusing reflection spectrum of sample is collected, and sends data near infrared spectrometer and is handled.
The casing side is provided with waste material cylinder, and the sample detected is recycled to this and given up by the sample negative pressure recovery system
Expect cylinder.
The sample transport system includes rotating round table and the sample disc that is placed in rotating round table, first station,
Second station, 3rd station and the 4th station are sequentially distributed along the circumferencial direction of rotating round table.
Solid sample is transmitted on sample conveyer belt, and sample is taken out from the main belt of production conveying by sampling system
Product, are put and are turned into sample disc below the drill bit of sample pretreatment system, and the spy of optical system is turned to after pulverizing compacting
Head lower section carries out diffusing reflection spectrum collection, and carries out data analysis and transmission, and after measurement analysis terminates, sample is sent into sample
Negative pressure recovery system, discharges sample, and cleaning sample disk is measured next time.
From above technical scheme, the present invention has the advantages that：
1st, whole device can move freely, it is adaptable to the on-line checking of solid sample so that entirely sample, pre-process, detecting,
Analysis and removal process is controllable and serialization, whole process green non-pollution；
2nd, device highly versatile, for different solid samples, can suitably adjust sampling, the parameter in pretreatment and select difference
Spectral prediction model, the scope of application is wider；
3rd, distinctive automatic pretreatment apparatus in the present apparatus, solid sample can be pulverized and be compacted, so as to ensure in measurement process
Light focus on and light path uniformity, greatly improve accuracy of detection.
Brief description of the drawings
Fig. 1 is axonometric drawing one of the invention；
Fig. 2 is axonometric drawing two of the invention；
Fig. 3 is top view of the invention；
Fig. 4 is Fig. 3 sectional view.
In figure：10th, casing, 11, waste material cylinder, 20, sampling system, 21, mechanical arm, 22, adsorbing mechanism, 23, main shaft, 30,
Sample transport system, the 31, first station, the 32, second station, 33,3rd station, the 34, the 4th station, 35, rotating round table, 36,
Sample disc, 40, sample pretreatment system, 50, optical system, 51, light-source system, 52, spectra collection system, 53, near infrared light
Spectrometer, 60, sample negative pressure recovery system.
Embodiment
A kind of preferred embodiment to the present invention is described in detail below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, the solid on-line measuring device includes moveable casing 10, and is placed on the casing
Sampling system 20, sample transport system 30, sample pretreatment system 40, optical system 50 and sample negative pressure recovery system 60.
As shown in figure 3, the sample transport system 30 covers the first station 31, the second station 32, the and of 3rd station 33
4th station 34, the sampling system is used to the sample on production line delivering to the first station, and the sample pretreatment system exists
Sample is pulverized and is compacted by the second station, and the optical system is used to adopt the sample progress diffusing reflection spectrum in 3rd station
Collection, the sample negative pressure recovery system is used to discharge in the sample on the 4th station.The sample transport system 30 includes rotating
Motor, first station, the second work are installed under round platform 35 and the sample disc 36 being placed in rotating round table, rotating round table
Position, 3rd station and the 4th station are sequentially distributed along the circumferencial direction of rotating round table.Motor control rotating round table is rotated, will
Sample disc spins are immediately below the stamping cylinder into the second station, i.e. sample pretreatment system；Will via sample pretreatment system
After sample pulverizes and is compacted, rotating round table continues to rotate to 3rd station, i.e. optical system, carries out near infrared spectrum letter
Breath collection；After signal acquisition terminates, rotating round table continues to rotate to the 4th station, i.e. sample negative pressure recovery system, enters
The recovery of row sample.
The sampling system 20 includes mechanical arm 21, adsorbing mechanism 22 and main shaft 23, and wherein mechanical arm uses Three Degree Of Freedom
Structure, adsorbing mechanism is arranged on the front end of mechanical arm by the fluid pressure type expansion link of retractable, and the main shaft is arranged on
On casing, the mechanical arm can rotate freely to production line negative pressure absorbing sample around main shaft, after rotate again to the first station sample
Sample is placed above disk.
The sample pretreatment system 40 uses vertically-mounted cylinder assembly, sample disc spins to below when, it is real
Compacting now is pulverized to solid sample.
As shown in figure 3, the optical system 50 includes light-source system 51, spectra collection system 52 and near infrared spectrometer
53, the wherein diffusing reflection spectrum of spectra collection systematic collection sample, and send data near infrared spectrometer and handled.
The light-source system is a cylindrical structure, and two planoconvex lens placed small halogen bulb in cylinder and dorsad placed are used to launch
The collimation of light and focusing.Spectra collection system is also equally a cylindrical structure, and optical fiber is fixed in cylinder top using helicitic texture,
A planoconvex lens is placed in cylinder bottom is used for the focusing to reflected light.
The side of casing 10 is provided with waste material cylinder 11, and the sample detected is recycled to by the sample negative pressure recovery system
The waste material cylinder, the opposite side of casing is provided with controller, and the near infrared spectrometer of optical system is also placed in casing, can external one
Individual notebook computer is to the processing to spectroscopic data, storage and display.
The controller uses DSP (micro-chip processor) or FPGA（PLD）In any one, and pass through
Its come control sampling system, sample transport system, sample pretreatment system, optical system and sample retrieval system startup and
Stop.
The operation principle of the present invention：
1）Apparatus of the present invention are moved to by solid material production line first, starter after stabilization, now relay indicating light is bright
Rise；
2）Start sampling system, operating robotic arm starts fluid pressure type expansion link after rotating to above production line, utilizes negative pressure absorbing
Solid sample, the main shaft of rear rotating mechanical arm when expansion link is located at directly over sample stage, places sample, now sample disc position
In the first station；
3）Start the rotating round table of sample transport system, the sample disc spins of sample will be filled to the second station i.e. sample pretreatment
Immediately below system, stop operating round platform；
4）Start sample pretreatment system, elongation cylinder rod pulverizes compacting sample, after-contraction cylinder rod；
5）Rotary motion round platform, sample disc is turned to immediately below 3rd station i.e. optical system again；
6）Start optical system, collect the diffusing reflection spectrum of solid sample to be measured, and send data near infrared spectrometer and
Subsequent treatment is carried out in notebook computer；
7）Rotary motion round platform, sample disc is turned to immediately below the 4th station i.e. sample retrieval system, inhaled using negative pressure again
Taking mode will detect that sample is recycled to waste material cylinder；
8）Rotary motion round platform is again started up sampling system to the first station, repeats the above steps.
Apparatus of the present invention have stronger versatility, for different solid samples, can suitably adjust in sampling, pretreatment
Parameter and select different spectral prediction models.In addition, distinctive automatic pretreatment apparatus in the present apparatus, can be by solid sample
Pulverize and be compacted, so as to ensure that the light in measurement process is focused on and light path uniformity, effectively improve accuracy of detection.
The above embodiment is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.
Claims (6)
1. a kind of solid on-line measuring device based on near-infrared spectrum technique, it is characterised in that including moveable casing
(10), and be placed on the casing sampling system (20), sample transport system (30), sample pretreatment system (40), optics
System (50) and sample negative pressure recovery system (60), the sample transport system cover the first station (31), the second station
(32), 3rd station (33) and the 4th station (34), the sampling system are used to the sample on production line delivering to the first station,
Sample is pulverized and is compacted in the second station by the sample pretreatment system, and the optical system is used for the sample in 3rd station
Product carry out diffusing reflection spectrum collection, and the sample negative pressure recovery system is used to discharge in the sample on the 4th station.
2. solid on-line measuring device according to claim 1, it is characterised in that the sampling system (20) includes machinery
Arm (21), the adsorbing mechanism (22) that mechanical arm front end can freely stretch, and the main shaft (23) on casing are arranged on,
The mechanical arm can rotate freely to above production line negative pressure absorbing sample and rotation to the first station around main shaft and place sample.
3. solid on-line measuring device according to claim 1, it is characterised in that the sample pretreatment system (40) is adopted
With vertically-mounted cylinder assembly.
4. solid on-line measuring device according to claim 1, it is characterised in that the optical system (50) includes light source
System (51), spectra collection system (52) and near infrared spectrometer (53), the wherein diffusing reflection of spectra collection systematic collection sample
Spectrum, and send data near infrared spectrometer and handled.
5. solid on-line measuring device according to claim 1, it is characterised in that casing (10) side is provided with useless
Expect cylinder (11), the sample detected is recycled to the waste material cylinder by the sample negative pressure recovery system (60).
6. the solid on-line measuring device according to any one of claim 1 to 5, it is characterised in that the sample transport system
System (30) includes rotating round table (35) and the sample disc (36) that is placed in rotating round table, first station, the second station, the
Three stations and the 4th station are sequentially distributed along the circumferencial direction of rotating round table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105624.3A CN106959282A (en) | 2017-02-26 | 2017-02-26 | A kind of solid on-line measuring device based on near-infrared spectrum technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105624.3A CN106959282A (en) | 2017-02-26 | 2017-02-26 | A kind of solid on-line measuring device based on near-infrared spectrum technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106959282A true CN106959282A (en) | 2017-07-18 |
Family
ID=59481021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105624.3A Pending CN106959282A (en) | 2017-02-26 | 2017-02-26 | A kind of solid on-line measuring device based on near-infrared spectrum technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN106959282A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562555A (en) * | 2018-06-06 | 2018-09-21 | 北京工商大学 | Wheat albinism line on-line detecting system based on miniature near infrared spectrometer |
| CN108816869A (en) * | 2018-09-07 | 2018-11-16 | 福建师范大学 | A kind of decaying In situ ATR-FTIR instrument sample stage cleaning device |
| CN109444125A (en) * | 2018-11-27 | 2019-03-08 | 中国科学院合肥物质科学研究院 | A kind of pH value detection system and method |
| CN109632411A (en) * | 2018-11-27 | 2019-04-16 | 中国农业大学 | A kind of cultivation matrix pre-treatment and ingredient fast spectrum detect integral system |
| CN110501474A (en) * | 2019-09-25 | 2019-11-26 | 长沙开元仪器有限公司 | A kind of online Moisture Meter |
| CN110736744A (en) * | 2019-10-24 | 2020-01-31 | 北京航天益来电子科技有限公司 | Novel chemistry corroborating operation device |
| CN113231336A (en) * | 2021-05-08 | 2021-08-10 | 中国科学院长春光学精密机械与物理研究所 | Device and method for analyzing flour sample on line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458666A (en) * | 2014-12-31 | 2015-03-25 | 清华大学 | Solid sample on-line detection system and method based on laser-induced breakdown spectrum |
| CN104483293A (en) * | 2014-12-31 | 2015-04-01 | 清华大学 | Laser induced breakdown spectroscopy-based online solid sampling measurement system and method |
-
2017
- 2017-02-26 CN CN201710105624.3A patent/CN106959282A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458666A (en) * | 2014-12-31 | 2015-03-25 | 清华大学 | Solid sample on-line detection system and method based on laser-induced breakdown spectrum |
| CN104483293A (en) * | 2014-12-31 | 2015-04-01 | 清华大学 | Laser induced breakdown spectroscopy-based online solid sampling measurement system and method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562555A (en) * | 2018-06-06 | 2018-09-21 | 北京工商大学 | Wheat albinism line on-line detecting system based on miniature near infrared spectrometer |
| CN108816869A (en) * | 2018-09-07 | 2018-11-16 | 福建师范大学 | A kind of decaying In situ ATR-FTIR instrument sample stage cleaning device |
| CN108816869B (en) * | 2018-09-07 | 2023-10-13 | 福建师范大学 | Sample stage cleaning device for attenuated total reflection infrared spectrometer |
| CN109444125A (en) * | 2018-11-27 | 2019-03-08 | 中国科学院合肥物质科学研究院 | A kind of pH value detection system and method |
| CN109632411A (en) * | 2018-11-27 | 2019-04-16 | 中国农业大学 | A kind of cultivation matrix pre-treatment and ingredient fast spectrum detect integral system |
| CN109444125B (en) * | 2018-11-27 | 2024-03-19 | 中国科学院合肥物质科学研究院 | PH value detection system and method |
| CN110501474A (en) * | 2019-09-25 | 2019-11-26 | 长沙开元仪器有限公司 | A kind of online Moisture Meter |
| CN110736744A (en) * | 2019-10-24 | 2020-01-31 | 北京航天益来电子科技有限公司 | Novel chemistry corroborating operation device |
| CN113231336A (en) * | 2021-05-08 | 2021-08-10 | 中国科学院长春光学精密机械与物理研究所 | Device and method for analyzing flour sample on line |
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Application publication date: 20170718 |
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