CN204536202U - A kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum - Google Patents
A kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum Download PDFInfo
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- CN204536202U CN204536202U CN201520192072.0U CN201520192072U CN204536202U CN 204536202 U CN204536202 U CN 204536202U CN 201520192072 U CN201520192072 U CN 201520192072U CN 204536202 U CN204536202 U CN 204536202U
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Abstract
The utility model discloses a kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum, include the computing machine pre-depositing edible oil database, also comprise data collecting card, imageing sensor, cuvette, monochromator, condenser lens, control circuit and xenon lamp; Described computing machine is connected with control circuit signal, this control circuit respectively with xenon lamp, monochromator, data collecting card and imageing sensor control linkage, described data collecting card is connected with data transfer of computer, described xenon lamp is connected with cuvette light signal through monochromator, and described cuvette line focus lens are connected with imageing sensor light signal.The utility model has the advantage of, structure is simple, easy to connect.
Description
Technical field
The utility model relates to edible oil quality authentication technique field, especially a kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum.
Background technology
The quality of edible oil quality is directly connected to the security status of food of country, but " waste oil " " roast duck oil " etc. reflux repeatedly, edible oil pretended to be by dining table, to the dietetic hygiene of the people and healthyly bring high risks.Waste oil is after peroxidating, adsorption treatment, and color with oil color obviously shoals, and viscosity reduces, and penetrating odor disappears.Therefore waste oil can not be detected easily by means of only organoleptic detection color and luster, transparency etc.
In addition, mix pseudo-phenomenon and be on the rise in the edible oil and fat of outlet and home market in recent years.Price variance is very large because its kind is different, nutritive value is different for vegetable oil.Some operators, in order to obtain sudden huge profits, mix cheap vegetable oil in high price vegetable oil.As mixed oil with common edible in olive oil, in sesame oil, mix rape oil, cottonseed oil, soybean oil, sunflower oil; Palm oil, cottonseed wet goods is mixed in rape oil.Also there is illegal manufacturer to mix in edible oil by the Toxic that country forbids, make expired rotten oil product reach some Physico-chemical tests index of qualified edible oil, get by under false pretences.
For above-mentioned situation, the Ministry of Public Health is repeatedly to Social collecting edible oil method for quick, several detection methods that current collection is arrived are because specificity is not strong and device is complicated, and cannot tell which is edible oil, which is the edible oil being doped with variable concentrations waste oil completely, and traditional chemical detection method can not be made the edible oil of doping and judging fast and effectively.At present conventional spectral method of detection due to information content few, just detect for above-mentioned a certain situation, the quality condition of edible oil can not be reacted comprehensively, thus in the urgent need to study a kind of can Rapid identification edible oil quality novel detection method and the identification device of edible oil quality can be differentiated fast.
Summary of the invention
Technical problem to be solved in the utility model is the present situation for prior art, provides structure simple, a kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum easy to connect.
The utility model solves the problems of the technologies described above adopted technical scheme:
Based on an edible oil quality device for quickly identifying for three-dimensional fluorescence spectrum, include the computing machine pre-depositing edible oil database, also comprise data collecting card, imageing sensor, cuvette, monochromator, condenser lens, control circuit and xenon lamp; Described computing machine is connected with control circuit signal, this control circuit respectively with xenon lamp, monochromator, data collecting card and imageing sensor control linkage, described data collecting card is connected with data transfer of computer, described xenon lamp is connected with cuvette light signal through monochromator, and described cuvette line focus lens are connected with imageing sensor light signal.
The technical measures optimized also comprise:
Above-mentioned condenser lens is vertical with the fluorescent emission direction of described cuvette to be arranged.
Above-mentioned imageing sensor is ccd image sensor.
Above-mentioned monochromator includes housing, is arranged at the light import on described housing and light exit, is just tiltedly installed with reflective mirror to light inflow point in described housing, is also provided with the first concave mirror, the second concave mirror and grating in described housing.
Above-mentioned grating comprises the first grating and the second grating, and the first described grating and the second parallel gratings are arranged.
A kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum of the utility model, include the computing machine pre-depositing edible oil database, data collecting card, imageing sensor, cuvette, monochromator, condenser lens, control circuit and xenon lamp; Its light signal sent by xenon lamp is divided into monochromatic light through monochromator, beat again on the cuvette being placed with oil sample to be measured, excite oil sample emitting fluorescence to be measured, received by imageing sensor after being collected by condenser lens again, then by data collecting card, the fluorescence spectrum obtained is formed matrix array, and transfer to computing machine, by computing machine, acquisition data and the comparative analysis of edible oil database are obtained a result; This identification device structure is simple, easy to connect.
In addition, condenser lens is vertical with the fluorescent emission direction of described cuvette to be arranged, and condenser lens can be made to collect emitting fluorescence better, thus improves the accuracy differentiated.
The utility model utilizes three-dimensional fluorescence spectrum technology to differentiate edible oil quality fast, three-dimensional fluorescence spectrum technology be obtain corresponding emission spectrum by many group excitation wavelength excited sample excite-emission matrix, more common fluorescence spectrum has abundanter information content, the favourable sample analysis realizing complicated ingredient, be applied to water analysis, the fields such as tealeaves qualification and mineral oil analysis, the variety and quality qualification utilizing it to realize Various Edible has advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model identification device;
Fig. 2 is the structural representation of monochromator in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Reference numeral is wherein: computing machine 1, data collecting card 2, imageing sensor 3, cuvette 4, monochromator 5, light import 5a, light exit 5b, housing 51, reflective mirror 52, second concave mirror 54, first grating 55a, the second grating 55b, condenser lens 6, control circuit 7, xenon lamp 8.
As depicted in figs. 1 and 2,
A kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum, include the computing machine 1 pre-depositing edible oil database, also comprise data collecting card 2, imageing sensor 3, cuvette 4, monochromator 5, condenser lens 6, control circuit 7 and xenon lamp 8; Described computing machine 1 is connected with control circuit 7 signal, this control circuit 7 respectively with xenon lamp 8, monochromator 5, data collecting card 2 and imageing sensor 3 control linkage, described data collecting card 2 transmits with computing machine 1 data and is connected, described xenon lamp 8 is connected with cuvette 4 light signal through monochromator 5, and described cuvette 4 line focus lens 6 are connected with imageing sensor 3 light signal.
In embodiment, condenser lens 6 is vertical with the fluorescent emission direction of described cuvette 4 to be arranged.Adopt vertical setting can collect emitting fluorescence better, improve the accuracy differentiated.
In embodiment, imageing sensor 3 is ccd image sensor.
In embodiment, monochromator 5 includes housing 51, be arranged at the light import 5a on described housing 51 and light exit 5b, in described housing 51, just reflective mirror 52 be tiltedly installed with to light import 5a place, in described housing 51, be also provided with the first concave mirror 53, second concave mirror 54 and grating.
In embodiment, grating comprises the first grating 55a and the second grating 55b, and the first described grating 55a and the second grating 55b be arranged in parallel.
The principle of work of monochromator 5:
Light (in Fig. 2 shown in dotted line) enters in housing 51 from light import 5a, incident light incides grating after being collimated by the first concave mirror 53 after reflective mirror 52 reflects again, light is divided into the monochromatic light of different wave length at grating place, then penetrates from light exit 5b after being collimated by the second concave mirror 54.
Wherein, the first grating 55a is applicable to the incident light that wavelength is 200nm ~ 600nm, and the second grating 55b suitable wavelength is the incident light of 500nm ~ 1000nm.
The using method of this identification device, comprises the following steps:
Step one, oil sample to be measured is put into cuvette 4;
Step 2, open xenon lamp 8, xenon lamp 8 sends light signal and is divided into monochromatic light through monochromator 5, and monochromatic light is beaten and put into cuvette 4 putting into oil sample to be measured, excites oil sample emitting fluorescence to be measured;
Step 3, collect emitting fluorescence by condenser lens 6, then deliver to imageing sensor 3 and received by it;
Step 4, excite the fluorescence spectrum obtained to form matrix array different excitation wavelength by data collecting card 2, and these matrix array data are delivered to computing machine 1;
The data of acquisition and the normal data in the edible oil database pre-deposited contrast by step 5, computing machine 1, analyze the kind and the quality that draw oil sample to be measured.
Identification device of the present utility model, structure is simple, and easy to connect, it utilizes three-dimensional fluorescence spectrum technology can differentiate edible oil quality fast, contrasted by the normal data in the data of oil sample to be measured and edible oil database, differentiate kind and the quality of oil sample to be measured.
Most preferred embodiment of the present utility model is illustrated, and the various change made by those of ordinary skill in the art or remodeling all can not depart from scope of the present utility model.
Claims (5)
1. the edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum, include the computing machine (1) pre-depositing edible oil database, it is characterized in that: also comprise data collecting card (2), imageing sensor (3), cuvette (4), monochromator (5), condenser lens (6), control circuit (7) and xenon lamp (8); Described computing machine (1) is connected with control circuit (7) signal, this control circuit (7) respectively with xenon lamp (8), monochromator (5), data collecting card (2) and imageing sensor (3) control linkage, described data collecting card (2) transmits with computing machine (1) data and is connected, described xenon lamp (8) is connected with cuvette (4) light signal through monochromator (5), and described cuvette (4) line focus lens (6) are connected with imageing sensor (3) light signal.
2. a kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum according to claim 1, is characterized in that: described condenser lens (6) is vertical with the fluorescent emission direction of described cuvette (4) to be arranged.
3. a kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum according to claim 2, is characterized in that: described imageing sensor (3) is ccd image sensor.
4. a kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum according to claim 3, it is characterized in that: described monochromator (5) includes housing (51), be arranged at the light import (5a) on described housing (51) and light exit (5b), just reflective mirror (52) is tiltedly installed with to light import (5a) place in described housing (51), in described housing (51), is also provided with the first concave mirror (53), the second concave mirror (54) and grating.
5. a kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum according to claim 4, it is characterized in that: described grating comprises the first grating (55a) and the second grating (55b), described the first grating (55a) and the second grating (55b) be arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520192072.0U CN204536202U (en) | 2015-04-01 | 2015-04-01 | A kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum |
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| CN201520192072.0U CN204536202U (en) | 2015-04-01 | 2015-04-01 | A kind of edible oil quality device for quickly identifying based on three-dimensional fluorescence spectrum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115744A (en) * | 2018-10-16 | 2019-01-01 | 四川理工学院 | The method that edible oil mixes pseudo- frying oil is quickly detected using three-dimensional fluorescence spectrum technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115744A (en) * | 2018-10-16 | 2019-01-01 | 四川理工学院 | The method that edible oil mixes pseudo- frying oil is quickly detected using three-dimensional fluorescence spectrum technology |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160401 |