CN203894158U - Quick detection device for content of aspartame in sugar-free coke - Google Patents
Quick detection device for content of aspartame in sugar-free coke Download PDFInfo
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- CN203894158U CN203894158U CN201420302154.1U CN201420302154U CN203894158U CN 203894158 U CN203894158 U CN 203894158U CN 201420302154 U CN201420302154 U CN 201420302154U CN 203894158 U CN203894158 U CN 203894158U
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- sugar
- aspartame
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Abstract
The utility model discloses a quick detection device for the content of aspartame in sugar-free coke. The quick detection device comprises a data storage device, a CCD (Charge Coupled Device) spectrograph, a light path switcher, a reflection collimating lens, a transmittance collimating lens, an optical filter, an objective table, a reflector, a beam splitter and a light source, wherein the data storage device is connected with the CCD spectrograph, the CCD spectrograph is connected with the light path switcher, the light path switcher is respectively connected with the reflection collimating lens and the transmittance collimating lens, the optical filter is arranged at the front end of the reflection collimating lens, the objective table is arranged at the front end of the transmittance collimating lens, a to-be-tested sample is arranged on the objective table; in addition, the light source is arranged at the front end of the beam splitter, the reflector is arranged at one side of the beam splitter, the beam splitter is located at the front end of the objective table, and the reflector is located at the front end of the optical filter. The quick detection device has the advantages of being free from pretreatment of the sample, quick and real-time to detect, simple and convenient to operate and low in time consumption; by adopting the quick detection device, the work efficiency is effectively improved, and the labor intensity and the production cost are reduced.
Description
Technical field
The utility model relates to food technology field, is specially the device for fast detecting of Aspartame content in a kind of sugar-free cola.
Background technology
Aspartame is a kind of artificial sweetener of non-carbohydrate class, and its sweet taste is 200 times of general sucrose.At present, be there is to very large dispute in the security of Aspartame in the world, there is scientist to think that Aspartame can cause great harm to human body, and sugar-free cola is to replace sugar to add in cola drink using Aspartame as sweetener, because Aspartame sweet taste is high and heat is low, make sugar-free laughable standby welcomed by the people.For protection health, eliminate the potential hazard of Aspartame to human body, be necessary the Aspartame content in sugar-free cola to monitor, the content of Aspartame is controlled in safe range guaranteeing.
At present, in food, the detection method of Aspartame mainly contains high performance liquid chromatography, vapor-phase chromatography, high performance capillary electrophoresis, titrimetry and square wave voltammetry etc.; Yet there is loaded down with trivial details, the consuming time length of operating process, high in cost of production shortcoming in above-mentioned detection method, can not realize field quick detection, inefficiency, and hand labor intensity is large.
Utility model content
The technical matters that the utility model solves is to provide the device for fast detecting of Aspartame content in a kind of sugar-free cola, to solve the shortcoming in above-mentioned background technology.
The technical matters that the utility model solves realizes by the following technical solutions:
The method for quick of Aspartame content in a kind of sugar-free cola, first collect the laughable sample of representative sugar-free, then by analyzing and processing, set up the calibration model of Aspartame content in sugar-free cola, finally the Aspartame content detection of sugar-free cola to be measured is inputted in calibration model after treatment, the Aspartame content that can obtain fast sugar-free cola to be measured, concrete steps are as follows:
1) collect the representative laughable sample of sugar-free of different manufacturers and different production time;
2) acquisition step 1) in the near infrared spectrum of the laughable sample of sugar-free collected, adopt Adaptive Fuzzy Neural-network to eliminate the noise signal of the laughable sample spectrum of sugar-free, and the laughable sample spectrum of the sugar-free after denoising is carried out to differential processing, obtain the set of the laughable sample light spectrum signal of sugar-free;
3) determination step 1) in Aspartame real content in the laughable sample of sugar-free collected, obtain the laughable sample Aspartame of sugar-free real content value set;
4) to step 2) set of the laughable sample light spectrum signal of the middle sugar-free obtaining, employing is removed the useless wavelength variable in the laughable sample light spectrum signal of sugar-free without information variable null method, recycle the heavy weighted method of competitive self-adaptation and obtain the characteristic wavelength of Aspartame in the laughable sample light spectrum signal of sugar-free, and extract the spectral value of Aspartame characteristic wavelength in the laughable sample light spectrum signal of sugar-free, obtain the set of sample Aspartame characteristic wavelength spectral value;
5) application particle group optimizing-least square method supporting vector machine method is carried out the sample Aspartame characteristic wavelength spectral value obtaining in step 4) and the real content value of Aspartame in step 3) associated, and then sets up the calibration model of Aspartame content in sugar-free cola;
6) gather the near infrared spectrum of sugar-free cola to be measured, adopt Adaptive Fuzzy Neural-network to eliminate the noise signal of the laughable spectrum of sugar-free to be measured, and the laughable spectrum of the sugar-free to be measured after denoising is carried out to differential processing, obtain the laughable spectral signal of sugar-free to be measured;
7) to the laughable spectral signal of the sugar-free to be measured obtaining in step 6), extract the spectral value of Aspartame characteristic wavelength, obtain the spectral value of the laughable Aspartame characteristic wavelength of sugar-free to be measured;
8) spectral value of the laughable Aspartame characteristic wavelength of sugar-free to be measured step 7) being obtained inputs in the calibration model that step 5) sets up, and obtains the Aspartame content of sugar-free cola to be measured.
In the utility model, in described step 3), the Aspartame real content in the laughable sample of the sugar-free of collecting in step 1) is measured and adopted national standard method GB/T 22254-2008.
The device for fast detecting of Aspartame content in a kind of sugar-free cola, method for quick based on Aspartame content in above-mentioned sugar-free cola, it comprises data storage device, CCD spectrometer, optical path switcher, reflection collimation lens, transmission collimation lens, optical filter, objective table, catoptron, beam splitter and light source; Wherein, data storage device is connected with CCD spectrometer, and CCD spectrometer is connected with optical path switcher, and optical path switcher is connected with transmission collimation lens with reflection collimation lens respectively; And be provided with optical filter at reflection collimation lens front end, and transmission collimation lens front end is provided with objective table, and sample to be tested is placed on objective table; In addition, light source is arranged on to the front end of beam splitter, catoptron is arranged on a side of beam splitter, and beam splitter is positioned at the front end of objective table, and catoptron is positioned at the front end of optical filter.
In the utility model, data storage device is storer, is convenient to mobile carrying.
In the utility model, data storage device is computing machine, is convenient to realize detection online data and uploads.
In the utility model, optical filter is neutral density filter, and its minimizing ability to various different wave length light is equal, uniform, only plays the effect that weakens light, and can not produce any impact to the color of the original, is convenient to reflect collimation lens imaging.
In the utility model, optical path switcher is connected with transmission collimation lens with reflection collimation lens respectively by optical fiber.
In the utility model, CCD spectrometer is connected with optical path switcher by optical fiber.
In the utility model, during detection, first sample to be tested is placed on objective table, then adjust optical path switcher, open light source, the light beam that light source produces is after beam splitter simultaneously, and half light beam is reflected, become folded light beam, half light beam is transmitted, and becomes transmitted light beam; Folded light beam is reflected after mirror reflection, through optical filter, enters reflection collimation lens, enters optical path switcher and by CCD spectrometer, is gathered the near infrared spectrum of folded light beam, and be kept in data storage device by optical fiber; Again adjust optical path switcher, transmission collimation lens is connected with optical path switcher, transmitted light beam is irradiated to sample to be tested, the light that sees through sample to be tested enters transmission collimation lens, through optical fiber, enter optical path switcher and gather the near infrared spectrum of sample to be tested by CCD spectrometer 7, and be kept in data storage device; Data storage device contrasts both data values, can obtain fast the Aspartame content of sample to be tested.
Beneficial effect: the utlity model has without sample pretreatment, the quick advantage detecting in real time, and operating process is easy, consuming time low, effectively improved work efficiency, reduced hand labor intensity and production cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to the device for fast detecting of Aspartame content in a kind of sugar-free cola of Fig. 1, comprise catoptron 1, neutral density filter 2, reflection collimation lens 3, optical fiber 4, optical path switcher 5, optical fiber 6, CCD spectrometer 7, computing machine 8, optical fiber 9, transmission collimation lens 10, objective table 11, sample to be tested 12, transmitted light beam 13, beam splitter 14, light beam 15, light source 16 and folded light beam 17.
Before carrying out test experience, first gather the near infrared spectrum of the laughable sample of representative sugar-free of 260 different manufacturers and different production times, and the near infrared spectrum of 260 samples is processed: 1) adopt Adaptive Fuzzy Neural-network to eliminate the noise signal of sample spectrum, and the sample spectrum after denoising is carried out to differential processing; 2) according to national standard method GB/T 22254-2008, measure the Aspartame real content in the laughable sample of 260 sugar-frees; 3) to the sample spectrum after differential processing, employing is removed useless wavelength variable in sample spectrum without information variable null method, recycle the heavy weighted method of competitive self-adaptation and obtain the characteristic wavelength of sample Aspartame, and extract the spectral value of Aspartame characteristic wavelength in sample spectrum; 4) application particle group optimizing-least square method supporting vector machine method is carried out associated by the spectral value of Aspartame characteristic wavelength in sample spectrum with the real content value of Aspartame, set up the calibration model of Aspartame content in sugar-free cola, and input in computing machine 8.
Then sample to be tested 12 is placed on objective table 11, adjusts optical path switcher 5, optical fiber 4 is communicated with optical fiber 6; Open light source 16, the light beam 15 that light source 16 produces is after beam splitter 14 simultaneously, and 50% light beam 15 is reflected, and the light beam 15 that becomes folded light beam 17,50% is transmitted, and becomes transmitted light beam 13; Folded light beam 17 is reflected after mirror 1 reflection, sees through neutral density filter 2 and enters reflection collimation lens 3, then pass through optical fiber 4, optical path switcher 5 and optical fiber 6, gathers the near infrared spectrum of folded light beam 17, and be kept at 8 li, computing machine by CCD spectrometer 7; Again adjust optical path switcher 5, optical fiber 9 is communicated with optical fiber 6, transmitted light beam 13 is irradiated to sample to be tested 12, the light that sees through sample to be tested 12 enters transmission collimation lens 10, again through optical fiber 9, optical path switcher 5 and optical fiber 6, by CCD spectrometer 7, gather the near infrared spectrum of sample to be tested 12, and be kept at 8 li, computing machine.
In the present embodiment, for eliminating the impact of light source 16 fluctuations, the near infrared spectrum by the near infrared spectrum of sample to be tested 12 divided by folded light beam 17, as the final near infrared spectrum of sample to be tested 12.
Near infrared spectrum to sample to be tested 12 is processed: 1) adopt Adaptive Fuzzy Neural-network to eliminate the noise signal of sample spectrum, and the sample spectrum after denoising is carried out to differential processing; 2), to the sample spectrum after differential processing, extract the spectral value of Aspartame characteristic wavelength; 3) spectral value of Aspartame characteristic wavelength is inputed in interior the set up calibration model of computing machine 8, can obtain the Aspartame content of sample to be tested 12.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof
.
Claims (6)
1. a device for fast detecting for Aspartame content in sugar-free cola, comprises data storage device, CCD spectrometer, optical path switcher, reflection collimation lens, transmission collimation lens, optical filter, objective table, catoptron, beam splitter and light source; It is characterized in that, data storage device is connected with CCD spectrometer, and CCD spectrometer is connected with optical path switcher, and optical path switcher is connected with transmission collimation lens with reflection collimation lens respectively; And be provided with optical filter at reflection collimation lens front end, and transmission collimation lens front end is provided with objective table, and sample to be tested is placed on objective table; In addition, light source is arranged on to the front end of beam splitter, catoptron is arranged on a side of beam splitter, and beam splitter is positioned at the front end of objective table, and catoptron is positioned at the front end of optical filter.
2. the device for fast detecting of Aspartame content in a kind of sugar-free cola according to claim 1, is characterized in that, data storage device is storer.
3. the device for fast detecting of Aspartame content in a kind of sugar-free cola according to claim 1, is characterized in that, data storage device is computing machine.
4. the device for fast detecting of Aspartame content in a kind of sugar-free cola according to claim 1, is characterized in that, optical filter is neutral density filter.
5. the device for fast detecting of Aspartame content in a kind of sugar-free cola according to claim 1, is characterized in that, optical path switcher is connected with transmission collimation lens with reflection collimation lens respectively by optical fiber.
6. the device for fast detecting of Aspartame content in a kind of sugar-free cola according to claim 1, is characterized in that, CCD spectrometer is connected with optical path switcher by optical fiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302154.1U CN203894158U (en) | 2014-06-09 | 2014-06-09 | Quick detection device for content of aspartame in sugar-free coke |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420302154.1U CN203894158U (en) | 2014-06-09 | 2014-06-09 | Quick detection device for content of aspartame in sugar-free coke |
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| CN203894158U true CN203894158U (en) | 2014-10-22 |
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| CN201420302154.1U Expired - Fee Related CN203894158U (en) | 2014-06-09 | 2014-06-09 | Quick detection device for content of aspartame in sugar-free coke |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018123A (en) * | 2019-05-16 | 2019-07-16 | 厦门斯坦道科学仪器股份有限公司 | A kind of In situ spectroscopic fado parameter water quality monitoring method and device |
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2014
- 2014-06-09 CN CN201420302154.1U patent/CN203894158U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018123A (en) * | 2019-05-16 | 2019-07-16 | 厦门斯坦道科学仪器股份有限公司 | A kind of In situ spectroscopic fado parameter water quality monitoring method and device |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170609 |
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| CF01 | Termination of patent right due to non-payment of annual fee |