CN202049112U - Pearl quality detecting device - Google Patents
Pearl quality detecting device Download PDFInfo
- Publication number
- CN202049112U CN202049112U CN2011200858508U CN201120085850U CN202049112U CN 202049112 U CN202049112 U CN 202049112U CN 2011200858508 U CN2011200858508 U CN 2011200858508U CN 201120085850 U CN201120085850 U CN 201120085850U CN 202049112 U CN202049112 U CN 202049112U
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- China
- Prior art keywords
- raman
- pearl
- dichroscope
- laser instrument
- microcobjective
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
一种珍珠质量检测装置，其技术要点在于：将珍珠置于正立显微镜的载物台上，激光经显微镜照射到珍珠表面，其表面反射的拉曼特征光谱被置于显微镜顶端的光谱仪收集。通过对光谱仪中显示的拉曼信号的波长和峰值分布进行分析，可以实现珍珠中特定微量元素的精确检测，从而判断珍珠质量。本实用新型可以应用于珍珠制品的生产单位以及相关质量检测机构。
A pearl quality detection device, the technical key points of which are as follows: the pearl is placed on the stage of an upright microscope, laser light is irradiated on the surface of the pearl through the microscope, and the Raman characteristic spectrum reflected by the surface is collected by a spectrometer placed on the top of the microscope. By analyzing the wavelength and peak distribution of the Raman signal displayed in the spectrometer, the precise detection of specific trace elements in pearls can be realized, thereby judging the quality of pearls. The utility model can be applied to production units of pearl products and related quality inspection institutions.
Description
Technical field
The utility model relates to a kind of Raman spectrum that adopts and carries out the method that pearl quality detects, and it is mainly used in the grade estimation of good and bad pearl, or carries out the discriminating of true and false pearl.
Background technology
In recent years, the pearl articles industry development was rapid, and industry size constantly enlarges, but the quality problems in pearl articles market are more and more outstanding, adulterated and fake and forged pearl articles remains incessant after repeated prohibition always.
At present, the quality testing means of pearl articles mainly contain ocular estimate and chemical detection.Ocular estimate is meant that outward appearance, smell, density and the gloss by pearl estimates pearl quality.This method is to sum up to come out from abundant production practices, but when facing the fraud technology that emerges in an endless stream, often discrimination is not high.Chemical detection is meant by the method for chemistry pearl composition is discerned, thereby judges its true and false.Though the method has suitable precision on discrimination, the checkout procedure time is longer, and can destroy sample composition.
The utility model content
Technical problem to be solved in the utility model provides a kind of precision height, lacks and do not damage the novel pearl quality pick-up unit of sample detection time.It is by the raman signatures spectral detection, the pearl of different quality, wherein contained special component can produce the Raman peaks and the raman scattering intensity of different wave length under the laser excitation of 785nm, principle in view of the above, we can differentiate the principal ingredient of pearl fast and effectively, thereby realize estimating the effect of pearl quality.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of pearl quality pick-up unit is characterized in that comprising:
Laser instrument, Raman dichroscope, microcobjective and Raman spectrometer; Described laser instrument is the Raman detection light source; Described laser output is connected to the microscope light source input end; To the Raman dichroscope, described laser instrument and Raman dichroscope are 45 and spend incident angles by the laser radiation of laser instrument output; After the reflection of Raman dichroscope, vertically enter microcobjective by the laser of laser instrument output, described microcobjective and Raman dichroscope are 45 and spend angles; During detection, the pearl sample places on the focal plane of microcobjective; Through the transmission of Raman dichroscope, vertically enter Raman spectrometer by the excited Raman light of pearl sample reflection, described Raman spectrometer and Raman dichroscope are 45 and spend angles.
Be specially, at upright microscopical outside laser instrument, the Raman spectrometer installed, at microscopical inner Raman dichroscope of installing.Laser can act on sample by dichroscope, and the Raman signal of sample can be introduced Raman spectrometer by dichroscope and survey.After adjusting light path, pearl sample to be measured is put on the objective table.Open laser instrument, realize the focusing of hot spot, then start the software of Raman spectrometer, the excited Raman signal of pearl sample is collected at the pearl sample surfaces.At last, according to Raman spectrum on different wave numbers distribution and strength information to the quality good or not of pearl sample with true and falsely analyze judgement.
The beneficial effects of the utility model are: can be under the prerequisites of not destroying pearl sample structure, composition, and the specificity vibrational spectrum that detects them (being Raman spectrum) of quick nondestructive, thus be finally inversed by their structure, composition information.This system principle is simple and easy, simple in structure, has really realized the integrated detection of analyzing to processing from data acquisition.
Description of drawings
Fig. 1 is an instrumentation diagram of the present utility model.
1. laser instruments among the figure, 2. Raman dichroscope, 3. Raman spectrometer, 4. microcobjective, 5. pearl sample.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Test principle figure of the present utility model, as shown in Figure 1.Whole detection system is based on laser instrument 1, Raman spectrometer 3, Raman dichroscope 2 and microcobjective 4.Described laser instrument 1 is a semiconductor laser, and wavelength is 785nm.Described Raman dichroscope 2 and microcobjective 4 place in the upright microscope.The output terminal of described laser instrument 1 is connected to the microscope light source input end.By the Raman dichroscope 2 of the special use of laser incident of laser instrument 1 output, described Raman dichroscope 2 is 45 degree incident angles with laser instrument 1.Incident laser is introduced microcobjective 4 after 2 reflections of Raman dichroscope, described microcobjective 4 is 45 degree angles with Raman dichroscope 2.During test, utilize microscopical focusing to realize the focusing of laser facula in microcobjective 4 operating distances, thereby make laser vertical after the focusing be incident in the surface of pearl sample 5, realize exciting of its Raman signal.Described pearl sample 5 places microcobjective 4 times, and is positioned at microcobjective 4 centers.Collected by same microcobjective 4 by the backward scattered Raman signal of pearl sample, thereby enter Raman dichroscope 2.Raman diffused light is collected by the Raman spectrometer 3 on microscope top after 2 transmissions of Raman dichroscope.Described Raman spectrometer 3 is 45 degree angles with Raman dichroscope 2.
In the software of spectrometer, the Raman spectrum of detected pearl sample 5 will be with wave number (cm
-1) form show that its sensing range generally is from 200cm
-1-2600cm
-1, analyze according to the wavelength and the peak Distribution of the Raman signal that shows, can realize the accurate detection of pearl composition and structure, thereby judge the quality of pearl quality.
According to actual needs, our Raman micro measurement system can also be expanded dissimilar Raman spectrometer in addition, to obtain abundanter Raman information, improves the accuracy that detects.
In addition to the implementation, the utility model also includes other embodiments, and the technical scheme that all employing equivalents or equivalent substitute mode form all should fall within the protection domain of the utility model claim.
Claims (2)
1. pearl quality pick-up unit is characterized in that comprising:
Laser instrument (1), Raman dichroscope (2), microcobjective (4) and Raman spectrometer (3); Described laser instrument (1) is the Raman detection light source; Described laser instrument (1) output terminal is connected to the microscope light source input end; To Raman dichroscope (2), described laser instrument (1) is 45 with the Raman dichroscope and spends incident angles by the laser radiation of laser instrument (1) output; After Raman dichroscope (2) reflection, vertically enter microcobjective (4) by the laser of laser instrument (1) output, described microcobjective (4) is 45 degree angles with Raman dichroscope (2); During detection, pearl sample (5) places on the focal plane of microcobjective (4); Through Raman dichroscope (2) transmission, vertically enter Raman spectrometer (3) by the excited Raman light of pearl sample (5) reflection, described Raman spectrometer (3) is 45 degree angles with Raman dichroscope (2).
2. pearl quality pick-up unit according to claim 1 is characterized in that:
Be used for the laser instrument (1) of Raman micro measurement, be semiconductor laser, its wavelength is 785nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200858508U CN202049112U (en) | 2011-03-28 | 2011-03-28 | Pearl quality detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200858508U CN202049112U (en) | 2011-03-28 | 2011-03-28 | Pearl quality detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202049112U true CN202049112U (en) | 2011-11-23 |
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ID=44989417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200858508U Expired - Fee Related CN202049112U (en) | 2011-03-28 | 2011-03-28 | Pearl quality detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202049112U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608076A (en) * | 2012-03-16 | 2012-07-25 | 国家黄金钻石制品质量监督检验中心 | Device and method for carrying out detection and gloss classification on pearls |
| CN103115880A (en) * | 2013-01-18 | 2013-05-22 | 山东大学 | Spectral analysis method with laser-induced auditory nerve |
| CN104749158A (en) * | 2013-12-27 | 2015-07-01 | 同方威视技术股份有限公司 | Jade jewelry appraisal method and device thereof |
| CN104749162A (en) * | 2015-04-17 | 2015-07-01 | 江苏天瑞仪器股份有限公司 | Confocal Raman spectrometer and light path device thereof |
| CN108548806A (en) * | 2018-03-08 | 2018-09-18 | 绍兴文理学院 | A kind of method and its application of evaluation clam shell nacre color hereditary and selection effect |
| CN114910121A (en) * | 2022-04-08 | 2022-08-16 | 广西诸宝科技开发有限公司 | Pearl source tracing identification method and device |
-
2011
- 2011-03-28 CN CN2011200858508U patent/CN202049112U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608076A (en) * | 2012-03-16 | 2012-07-25 | 国家黄金钻石制品质量监督检验中心 | Device and method for carrying out detection and gloss classification on pearls |
| CN102608076B (en) * | 2012-03-16 | 2015-06-24 | 国家黄金钻石制品质量监督检验中心 | Device and method for carrying out detection and gloss classification on pearls |
| CN103115880A (en) * | 2013-01-18 | 2013-05-22 | 山东大学 | Spectral analysis method with laser-induced auditory nerve |
| CN103115880B (en) * | 2013-01-18 | 2015-03-11 | 山东大学 | Spectral analysis method with laser-induced auditory nerve |
| CN104749158A (en) * | 2013-12-27 | 2015-07-01 | 同方威视技术股份有限公司 | Jade jewelry appraisal method and device thereof |
| CN104749162A (en) * | 2015-04-17 | 2015-07-01 | 江苏天瑞仪器股份有限公司 | Confocal Raman spectrometer and light path device thereof |
| CN104749162B (en) * | 2015-04-17 | 2018-03-27 | 江苏天瑞仪器股份有限公司 | Confocal laser-scanning microscopy instrument and its light path device |
| CN108548806A (en) * | 2018-03-08 | 2018-09-18 | 绍兴文理学院 | A kind of method and its application of evaluation clam shell nacre color hereditary and selection effect |
| CN114910121A (en) * | 2022-04-08 | 2022-08-16 | 广西诸宝科技开发有限公司 | Pearl source tracing identification method and device |
| CN114910121B (en) * | 2022-04-08 | 2024-04-26 | 广西诸宝科技开发有限公司 | Pearl tracing identification method and device |
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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: 20111123 Termination date: 20120328 |