CN201819877U - Rapid monitoring device for milk moisture based on near-infrared spectroscopy analysis technology - Google Patents
Rapid monitoring device for milk moisture based on near-infrared spectroscopy analysis technology Download PDFInfo
- Publication number
- CN201819877U CN201819877U CN 201020144645 CN201020144645U CN201819877U CN 201819877 U CN201819877 U CN 201819877U CN 201020144645 CN201020144645 CN 201020144645 CN 201020144645 U CN201020144645 U CN 201020144645U CN 201819877 U CN201819877 U CN 201819877U
- Authority
- CN
- China
- Prior art keywords
- light
- milk
- detector
- fast
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000008267 milk Substances 0.000 title claims abstract description 51
- 210000004080 milk Anatomy 0.000 title claims abstract description 51
- 235000013336 milk Nutrition 0.000 title claims abstract description 51
- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- 238000012806 monitoring device Methods 0.000 title abstract 4
- 238000004458 analytical method Methods 0.000 title description 12
- 238000004497 NIR spectroscopy Methods 0.000 title 1
- 238000001228 spectrum Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000010183 spectrum analysis Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000013307 optical fiber Substances 0.000 abstract description 7
- 235000013305 food Nutrition 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000001069 Raman spectroscopy Methods 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004451 qualitative analysis Methods 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000004847 absorption spectroscopy Methods 0.000 abstract 1
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000007405 data analysis Methods 0.000 abstract 1
- 239000012263 liquid product Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 24
- 239000000470 constituent Substances 0.000 description 13
- 238000002329 infrared spectrum Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000013350 formula milk Nutrition 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000010949 in-process test method Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003909 pattern recognition Methods 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000002485 urinary effect Effects 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000021393 food security Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model belongs to the technical field of fast monitoring of the production of chemical engineering, food and liquid products, in particular to a fast milk moisture monitoring device based on the near infrared spectral analysis technology, which consists of a light transmitting device, an optical fiber conductor, a light detector, a multi-channel data collector and a microcomputer, wherein the light transmitting device consists of a full-spectrum light source, a lens, a diffuse reflector and a transmitting detector. The fast milk moisture monitoring device is built through the absorption spectroscopy, the Raman spectroscopy and the computer control technology. Wide-spectrum light sent by the light source passes through milk, transmitted light transmitted through the milk and scattered light scattered by the milk simultaneously pass through the optical fiber to be transmitted, then, the light is divided to obtain multiple paths of light, each path of light reaches the detector after being transmitted through a light filter, the intensity condition of each path of light is detected, and contents such as water content and the like of the milk are obtained through real-time collection by the computer and data analysis. The fast milk moisture monitoring device based on the near infrared spectral analysis technology provided by the utility model has the advantages that samples can be directly detected in real time without being diluted by solvents, the qualitative analysis can be realized, quantitative results with high precision can also be obtained, the samples are not damaged, the environment is not polluted because reagents are not used, and the detection speed is very high.
Description
Technical field
The utility model belongs to chemical industry, food, liquid form product production fast monitoring technique field, specifically a kind of milk composition fast monitored device based on near-infrared spectral analysis technology.
Background technology
The Ministry of Public Health pointed out in September, 2008, ground such as Gansu report many cases infant calculus of urinary system example, investigation finds that infant has the history of edible Sanlu board baby formula milk powder more, investigate through relevant departments, the Sanlu board baby formula milk powder that Shijiazhuang Sanlu Group Corp., Ltd. produces is subjected to melamine and pollutes, afterwards, a large amount of infant's calculus of urinary system examples in the whole nation are found.Attacked maximum enterprises except that Sanlu, 20 many enterprises such as other Mongolia Ox, Erie also all are involved in this to be allowed in the disturbance that catches people's attention.
Along with growth in the living standard, people are more and more urgent to the demand of pollution-free food, and are especially all the more so to milk.Except require fresh, the adjuvant (as melamine) that requirement residues of pesticides and microbiotic can not occur and violate a ban.Food security has become influence agricultural and food industry key of competitiveness factor (grab it each milk plant as a most important condition that establishes famous brands), more and more causes the attention of countries in the world, because it and people's health has the most direct the contact.In order to ensure the consumer health, solve the adjuvant of violating a ban and residues of pesticides and antibiotic residue except requiring to control well production of fodder process, source and quality and require the agriculture and animal husbandry field to carry out antibiotic use and the management, must strengthen the detection link.
Milk product already is one of mainstay industry of China, and this project can be the economic development of China and makes contributions.
The utility model content
But the purpose of this utility model is to provide a kind of finding speed milk composition fast monitored device based on near-infrared spectral analysis technology of on-line monitoring that is exceedingly fast.
The concrete technical scheme that realizes the utility model purpose is: by the transmittance device, fiber optic conduction, light detection device, the multi-channel data acquisition device, microcomputer is formed, the transmittance device is by full spectrum light source, lens, diffuse reflector, transmission detector is formed, light detection device is by optical filter, detector is formed, the irradiation of full spectrum light source scioptics sees through tested milk and arrives transmission detector after fiber optic conduction beam filter mating plate changes Computer Processing over to after detector arrives the data acquisition unit conversion of signals again, composes the irradiation of light source scioptics entirely and sees through the reflected light that produces after the tested milk and filter mating plate through warm catoptron by fiber optic conduction change Computer Processing over to after detector arrives the data acquisition unit conversion of signals again.
A kind of milk composition fast monitored device based on near-infrared spectral analysis technology of the present utility model utilizes absorption spectrum technology, Raman spectroscopy and Computer Control Technology to build milk moisture fast monitored device.The wide range light that light source sends is through milk, will through the transmitted light of milk and through the scattered light of milk scattering jointly by the optical fiber transmission, beam split obtains multichannel light then, behind the light transmission optical filter of every road, arrive detector, detect each road light intensity situation, machine is gathered in real time as calculated, analyze the water cut that data draw milk, after the analysis by control system, report to the police or control the amount of water that adds water mechanism.Be characterized in: 1. sample need not with the i.e. direct The real time measure of solvent dilution.The near-infrared region is according to the height of employed bands of a spectrum and tester content, and light path can be 1～100mm.2. near infrared light can penetrate in glass or quartz medium, makes the remote analysis of the sample in process analysis procedure analysis and toxic material or rugged surroundings be achieved.3. can qualitative analysis, also can obtain the very high quantitative result of precision: adopt multivariate calibration methods and one group of quantitative model that known similar sample is set up, can obtain relative error fast less than 0.5% measurement result.4. do not destroy sample, without reagent, so free from environmental pollution.5. finding speed is exceedingly fast.So realize that with near-infrared spectrum technique the field quick detection of milk constituents is a kind of inventive process.
Description of drawings
Fig. 1 is the near-infrared absorption spectrum of water and different material content
Fig. 2 is the line monitoring and control system schematic diagram of the utility model embodiment
Embodiment
Below in conjunction with embodiment the utility model is further described, but the utility model also is not limited only to the content of embodiment.
As depicted in figs. 1 and 2, milk composition fast monitored device based on near-infrared spectral analysis technology of the present utility model is by the transmittance device, fiber optic conduction, light detection device, the multi-channel data acquisition device, microcomputer is formed, the transmittance device is by full spectrum light source, lens, diffuse reflector, transmission detector is formed, light detection device is by optical filter, detector is formed, the irradiation of full spectrum light source scioptics sees through tested milk and arrives transmission detector after fiber optic conduction beam filter mating plate changes Computer Processing over to after detector arrives the data acquisition unit conversion of signals again, composes the irradiation of light source scioptics entirely and sees through the reflected light that produces after the tested milk and filter mating plate through warm catoptron by fiber optic conduction change Computer Processing over to after detector arrives the data acquisition unit conversion of signals again.
(1) Infrared Spectrum Technology is carried out the analyzing and testing principle to milk constituents
Because near infrared absorption diffuse reflection spectrum bands of a spectrum are all very wide and overlapping serious, as shown in Figure 1 the near infrared spectrum spectrogram of certain material different content and water.This is a restriction near-infrared spectrum technique key in application, and principal component model is set up in how information extraction from determination data, also is one of key content.At first analyze and study the principal ingredient of milk constituents and the mechanism of action of near infrared light, the metering method of the collection of research near infrared spectrum data and processing spectroscopic data.
The information that making full use of spectrum provides must adopt the multi-wavelength data, adopts the absorption data of full spectrum data or several specific bands, and data are carried out intensive collection.Before unknown sample is analyzed, selected one group of sample is as a calibration set, its spectrum of each sample measurement and corresponding composition or character to calibration set, measure with single wavelength that to set up calibration curve the same, must set up calibration model with multivariate calibration methods with spectrum and character or the composition data association measured in advance.When needs are measured unknown sample, must use the spectrum of the unknown sample of this model and mensuration, calculate its composition or character.Near-infrared spectral analysis technology is actually a secondary analysis method, it getable accuracy can not surpass that when setting up model used mensuration is formed or the accuracy of character method.
(2) the detection system principle of the optical fiber milk constituents of near-infrared spectral analysis technology and sensor-based system structure optimization
On the basis of further investigation, utilize fiber optic sensor technology to realize the transmission of light, the reception of signal based on the detection principle of the milk constituents of near-infrared spectrum technique; Sensor one-piece construction based on optical fiber technology is optimized design.Be illustrated in figure 2 as milk constituents detection system schematic diagram.
(3) set up the check and analysis calibration model of the milk constituents of near-infrared spectral analysis technology
According to the digitizing spectral signal of the sample that detects mechanism and record, utilize the topology calculating principle and the method for neural network, pattern-recognition to set up calibration model.And stability (model that can use for a long time), model sharing (same model can use on different instruments), adaptivity, the self-study habit of model studied, utilize the further research model transmission of data fusion principle technology.
(4) measurement data dynamic compensation method:
Measurement result can have some inevitably because the measuring error that the environmental baseline fluctuation causes, owing to be milk constituents to be carried out situ metrology detect, need testing apparatus to have higher sensitivity and accuracy of detection, therefore, must in the processing of measuring method and test data, adopt dynamic compensation method respectively, to reduce the influence of environmental interference.
Embodiment
(1) near-infrared spectral analysis technology carries out the principle research of analyzing and testing and the structure optimization of sensor-based system to milk constituents:
Analyze and the principal ingredient of research milk constituents and the mechanism of action of near infrared light the stoechiometric process of the collection of research near infrared spectrum data and processing spectroscopic data.On this basis, utilize fiber optic sensor technology to realize the transmission of light, the reception of signal; Sensor one-piece construction based on optical fiber technology is optimized design studies.
(2) set up the check and analysis calibration model of the milk constituents of near-infrared spectral analysis technology:
Because near infrared absorption diffuse reflection spectrum bands of a spectrum are all very wide and overlapping serious,, utilize the topology calculating principle and the method for neural network, pattern-recognition to set up calibration model according to the digitizing spectral signal of the sample that detects mechanism and record.And stability, model sharing, adaptivity, the self-study habit of model studied, further research model transmits technology.
(3) measurement data dynamic compensation method:
Measurement result can have some inevitably because the measuring error that the environmental baseline fluctuation causes, because this project is milk constituents to be carried out situ metrology detect, need testing apparatus to have higher sensitivity and accuracy of detection, therefore, must in the processing of measuring method and test data, adopt the suitable compensation method respectively, to reduce the influence of environmental interference.
(4) foundation of experimental system:
Design and set up a cover experimental system, by detecting and analyze the near infrared light spectral property of milk and milk product, test data is carried out error analysis, constantly the correction analysis calibration model.
Milk composition high speed monitor utilizes absorption spectrum technology, Raman spectroscopy and Computer Control Technology to build milk moisture fast monitored device.The wide range light that light source sends is through milk, will through the transmitted light of milk and through the scattered light of milk scattering jointly by the optical fiber transmission, beam split obtains multichannel light then, behind the light transmission optical filter of every road, arrive detector, detect each road light intensity situation, machine is gathered in real time as calculated, analyze the water cut that data draw milk, after the analysis by control system, report to the police or control the amount of water that adds water mechanism.Be characterized in: 1. sample need not with the i.e. direct The real time measure of solvent dilution.The near-infrared region is according to the height of employed bands of a spectrum and tester content, and light path can be 1～100mm.2. near infrared light can penetrate in glass or quartz medium, makes the remote analysis of the sample in process analysis procedure analysis and toxic material or rugged surroundings be achieved.3. can qualitative analysis, also can obtain the very high quantitative result of precision: adopt multivariate calibration methods and one group of quantitative model that known similar sample is set up, can obtain relative error fast less than 0.5% measurement result.4. do not destroy sample, without reagent, so free from environmental pollution.5. finding speed is exceedingly fast.So realize that with near-infrared spectrum technique the field quick detection of milk constituents is a kind of inventive process.
Claims (1)
1. milk composition fast monitored device based on near-infrared spectral analysis technology, it is characterized in that: by the transmittance device, fiber optic conduction, light detection device, the multi-channel data acquisition device, microcomputer is formed, the transmittance device is by full spectrum light source, lens, diffuse reflector, transmission detector is formed, light detection device is by optical filter, detector is formed, the irradiation of full spectrum light source scioptics sees through tested milk and arrives transmission detector after fiber optic conduction beam filter mating plate changes Computer Processing over to after detector arrives the data acquisition unit conversion of signals again, composes the irradiation of light source scioptics entirely and sees through the reflected light that produces after the tested milk and filter mating plate through warm catoptron by fiber optic conduction change Computer Processing over to after detector arrives the data acquisition unit conversion of signals again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020144645 CN201819877U (en) | 2010-03-30 | 2010-03-30 | Rapid monitoring device for milk moisture based on near-infrared spectroscopy analysis technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020144645 CN201819877U (en) | 2010-03-30 | 2010-03-30 | Rapid monitoring device for milk moisture based on near-infrared spectroscopy analysis technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819877U true CN201819877U (en) | 2011-05-04 |
Family
ID=43917827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020144645 Expired - Fee Related CN201819877U (en) | 2010-03-30 | 2010-03-30 | Rapid monitoring device for milk moisture based on near-infrared spectroscopy analysis technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201819877U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364360A (en) * | 2013-03-14 | 2013-10-23 | 深圳先进技术研究院 | Moisture meter |
| CN103543123A (en) * | 2013-10-08 | 2014-01-29 | 江南大学 | Infrared spectrum recognition method for adulterated milk |
| CN104297204A (en) * | 2014-10-08 | 2015-01-21 | 华南理工大学 | Method and device for identifying whether toilet paper is mixed with reclaimed fiber or not |
| CN104777102A (en) * | 2015-03-13 | 2015-07-15 | 东莞捷荣技术股份有限公司 | Method and system for distinguishing liquids in feeding bottle |
| CN107356536A (en) * | 2017-06-15 | 2017-11-17 | 中科谱光科技（北京）有限公司 | Grape wine quality detection method, server and spectral measuring devices |
| CN107576628A (en) * | 2017-05-01 | 2018-01-12 | 无锡迅杰光远科技有限公司 | Milk powder classification and determination system and method based on near-infrared spectrum technique |
| CN108872144A (en) * | 2018-09-13 | 2018-11-23 | 中国农业大学 | A kind of on-Line Monitor Device for anaerobic digestion process |
| CN109030409A (en) * | 2018-08-30 | 2018-12-18 | 无锡迅杰光远科技有限公司 | A kind of Intellectual feeding bottle and milk power solution detection method |
| CN109690288A (en) * | 2016-09-13 | 2019-04-26 | 巴斯夫涂料有限公司 | Sensor for almost simultaneous measurement of transmission and/or forward scatter and/or re-emission of liquid samples and for simultaneous measurement of transmission and forward scatter or transmission and re-emission of liquid samples |
| CN110312924A (en) * | 2017-02-24 | 2019-10-08 | 松下知识产权经营株式会社 | Aridity sensor |
| CN110346299A (en) * | 2019-08-06 | 2019-10-18 | 东北石油大学 | The novel test chamber of trade effluent detection |
| CN110749569A (en) * | 2019-12-06 | 2020-02-04 | 天津中医药大学 | Bottled oral liquid quality nondestructive rapid detection device based on near infrared spectrum |
| CN117647498A (en) * | 2023-11-08 | 2024-03-05 | 中国农业大学 | Method for acquiring standardized parameters of different instruments of mid-infrared spectrum of milk |
-
2010
- 2010-03-30 CN CN 201020144645 patent/CN201819877U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364360B (en) * | 2013-03-14 | 2015-09-30 | 深圳先进技术研究院 | Moisture teller |
| CN103364360A (en) * | 2013-03-14 | 2013-10-23 | 深圳先进技术研究院 | Moisture meter |
| CN103543123A (en) * | 2013-10-08 | 2014-01-29 | 江南大学 | Infrared spectrum recognition method for adulterated milk |
| CN104297204A (en) * | 2014-10-08 | 2015-01-21 | 华南理工大学 | Method and device for identifying whether toilet paper is mixed with reclaimed fiber or not |
| CN104297204B (en) * | 2014-10-08 | 2017-02-08 | 华南理工大学 | Method and device for identifying whether toilet paper is mixed with reclaimed fiber or not |
| CN104777102A (en) * | 2015-03-13 | 2015-07-15 | 东莞捷荣技术股份有限公司 | Method and system for distinguishing liquids in feeding bottle |
| CN109690288A (en) * | 2016-09-13 | 2019-04-26 | 巴斯夫涂料有限公司 | Sensor for almost simultaneous measurement of transmission and/or forward scatter and/or re-emission of liquid samples and for simultaneous measurement of transmission and forward scatter or transmission and re-emission of liquid samples |
| CN110312924B (en) * | 2017-02-24 | 2021-11-23 | 松下知识产权经营株式会社 | Dryness sensor |
| CN110312924A (en) * | 2017-02-24 | 2019-10-08 | 松下知识产权经营株式会社 | Aridity sensor |
| CN107576628A (en) * | 2017-05-01 | 2018-01-12 | 无锡迅杰光远科技有限公司 | Milk powder classification and determination system and method based on near-infrared spectrum technique |
| CN107356536A (en) * | 2017-06-15 | 2017-11-17 | 中科谱光科技（北京）有限公司 | Grape wine quality detection method, server and spectral measuring devices |
| CN107356536B (en) * | 2017-06-15 | 2020-07-17 | 中科谱光科技（北京）有限公司 | Wine quality detection method, server and spectral measurement equipment |
| CN109030409A (en) * | 2018-08-30 | 2018-12-18 | 无锡迅杰光远科技有限公司 | A kind of Intellectual feeding bottle and milk power solution detection method |
| CN108872144A (en) * | 2018-09-13 | 2018-11-23 | 中国农业大学 | A kind of on-Line Monitor Device for anaerobic digestion process |
| CN110346299A (en) * | 2019-08-06 | 2019-10-18 | 东北石油大学 | The novel test chamber of trade effluent detection |
| CN110749569A (en) * | 2019-12-06 | 2020-02-04 | 天津中医药大学 | Bottled oral liquid quality nondestructive rapid detection device based on near infrared spectrum |
| CN115032172A (en) * | 2019-12-06 | 2022-09-09 | 天津中医药大学 | Bottled oral liquid quality nondestructive rapid detection device based on near infrared spectrum |
| CN117647498A (en) * | 2023-11-08 | 2024-03-05 | 中国农业大学 | Method for acquiring standardized parameters of different instruments of mid-infrared spectrum of milk |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201819877U (en) | Rapid monitoring device for milk moisture based on near-infrared spectroscopy analysis technology | |
| Li et al. | An effective method for the rapid detection of microplastics in soil | |
| CN104897607B (en) | Portable near infrared spectrum food modeling and quick detection integral method and system | |
| Zhou et al. | Development and performance test of an in-situ soil total nitrogen-soil moisture detector based on near-infrared spectroscopy | |
| CN101387605B (en) | Optical fiber agricultural land soil organic matter content rapid detector | |
| CN102175638A (en) | Device for rapidly and nondestructively detecting component content of yellow rice wine | |
| CN101975759A (en) | Transmission-type nondestructive measuring device and method of water content of plant leaves | |
| CN109060755A (en) | A kind of soil pollution real-time in-situ detection device based on laser fluorescence inductive technology | |
| CN201298020Y (en) | Near infrared spectrometric analyzer | |
| CN107907528A (en) | A kind of water quality on-line monitoring device based on wide spectrum multi-parameter | |
| Chen et al. | Terahertz dual-band metamaterial absorber for trace indole-3-acetic acid and tricyclazole molecular detection based on spectral response analysis | |
| CN102393378B (en) | Method for rapidly detecting alcoholysis degree and polymerization degree in production of polyvinyl alcohol by utilizing near infrared spectrum technology | |
| CN202886274U (en) | Micro electro mechanical system technology-based agricultural product quality near infrared spectrum analyzer | |
| Roberts et al. | Wet or dry? The effect of sample characteristics on the determination of soil properties by near infrared spectroscopy | |
| CN205844176U (en) | A kind of near infrared spectrum analysis device | |
| CN105259136B (en) | Near infrared correction without measuring point temperature correction | |
| CN215640875U (en) | SERS spectral detection device based on hollow-core photonic crystal fiber | |
| CN204008454U (en) | Portable near infrared spectrometer for detection of mould index in storage paddy | |
| CN202002879U (en) | Yellow wine ingredient content detecting device | |
| CN106092961A (en) | A kind of method of chemical composition in quick detection agricultural product | |
| CN102539392A (en) | System and method for on-line detection of nitrogen in farmland soil | |
| Che et al. | Research on COD parameter in water based on the combination of UV absorption photometry and laser spectroscopy | |
| CN109520967A (en) | The detection system and its detection method of trace heavy metal in a kind of food | |
| CN201697871U (en) | High-concentration visible spectrophotometer | |
| CN201589749U (en) | Agriculture chemicals residue detector with wireless transmission function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20120330 |