CN205643160U - Photoluminescence diamond detection device - Google Patents
Photoluminescence diamond detection device Download PDFInfo
- Publication number
- CN205643160U CN205643160U CN201620382893.5U CN201620382893U CN205643160U CN 205643160 U CN205643160 U CN 205643160U CN 201620382893 U CN201620382893 U CN 201620382893U CN 205643160 U CN205643160 U CN 205643160U
- Authority
- CN
- China
- Prior art keywords
- light
- diamond
- wavelength
- light source
- detection 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.)
- Ceased
Links
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model discloses a photoluminescence diamond detection device, including light source, workstation, array detector, data processing terminal, place the sample article that remain on the workstation, the wavelength of light source is wavelength less than or equal to 410nm's monochromatic light or mixed light, the light source sends the light struck and to treat the sample article on, makes and treat sample article obtaining energy and produce to arouse to lead to giving out light, and luminous light incidence array detector is laggard conducts the survey, and then converts the photon information of luminous light into the signal of telecommunication according to the wavelength order, then passes through analog -to -digital conversion with this signal of telecommunication and for behind the data signal, transmit data processing terminal to and form real -time photoluminescence spectrum and scheme. The utility model discloses a photoluminescence's method can realize once only measuring a plurality of peak positions, and whether it is the diamond to solve, be synthetic, a plurality of problems such as rough diamond whether, and detectivity is high, detects fastly, detects with low costsly.
Description
Technical field
This utility model relates to diamond detection field, is specifically related to a kind of luminescence generated by light diamond detection device.
Background technology
Luminescence generated by light refers to that object relies on external light source and is irradiated, thus obtain energy, and producing and excite the phenomenon causing luminescence, it is substantially through absorption, energy transmission and three Main Stage of light emission, absorption and the transmitting of light all betide the transition between energy level, all through excited state.Energy transmission is then the motion due to excited state.Ultraviolet radiation, visible ray and infra-red radiation all can cause luminescence generated by light.Such as phosphorescence and fluorescence.
Photoluminescence spectra (Photoluminescence Spectroscopy, be called for short PL spectrum), refer to material under the excitation of light, electronics transits to conduction band from valence band and leaves hole in valence band；Electronics and hole reach the lowest excited state (being at the bottom of conduction band in intrinsic semiconductor and top of valence band) not each being occupied in each comfortable conduction band and valence band by relaxation, become quasi-equilibrium state；Recombination luminescence is passed through in electronics and hole under quasi-equilibrium state again, forms intensity or the spectrogram of Energy distribution of different wavelengths of light.Photoluminescent process includes that fluorescence radiation and phosphorescence are luminous.
The advantage of luminescence generated by light: equipment is simple, without destructive, to sample size without being strict with: resolution is high, can do thin layer and micro-zone analysis.The shortcoming of luminescence generated by light: be typically only capable to do qualitative analysis, and do not make quantitative analysis；If doing low-temperature test, needing liquid helium to lower the temperature, condition is harsher；The deep energy level defect center of non-radiative recombination can not be reflected.In the case of exciting light energy is not very big, photoluminescence spectra test is a kind of lossless method of testing, can quickly and conveniently characterize the luminescent properties of the defect of semi-conducting material, impurity and material.
The chemical composition of diamond is carbon, and its crystal structure is the tetrahedron that 4 carbon atoms are constituted.Pure diamond is water white, but all contains the impurity element of trace in most of rough diamond.According to analysis, C mass fraction in diamond is up to 99.95%, and its submember has the impurity such as N, B, H.
Ultraviolet-visible absorption spectroscopy and Raman spectrum is currently mainly used to measure, ultraviolet-visible absorption spectroscopy is for crests such as measurement 415,452nm, 465nm, 478nm, but owing to sensitivity is low, some weak signal cannot be measured, and needing to do reference corrected, reference sheet is the dirtiest, is easily caused measurement error, measure hot spot too big, little particulate samples is difficult to measure；Raman spectrum can be determined whether diamond, and partial synthesis diamond, but whether can not judge is Ia type rough diamond, it usually needs 2 even more equipment of equipment, and expensive.
Utility model content
For the problems referred to above, this utility model aims to provide a kind of low-cost high-efficiency high-precision luminescence generated by light diamond detection device.
For realizing this technical purpose, scheme of the present utility model is: a kind of luminescence generated by light diamond detection device, including light source, workbench, array detector, data processing terminal, it is placed with measuring samples on described workbench, the wavelength of described light source is monochromatic light or the mixed light that wavelength is less than or equal to 410nm, described light source sends light and is irradiated on measuring samples reflect, reflection light detects after injecting array detector, and then the photon information of reflection light is converted to the signal of telecommunication according to wavelength order, then after this signal of telecommunication being digital signal by analog digital conversion, it is transferred to data processing terminal and forms real-time photoluminescence spectra figure.
As preferably, being provided with the high-pass filter for absorbing bias light between described array detector and measuring samples, high-pass filter filters out bias light, reduces ambient interferences, improves the identification of spectrogram.
As preferably, it is provided with the first optical filter for filtering incident illumination between described light source and measuring samples, the light of other wavelength that light source sends can be filtered by the first optical filter, it is thus achieved that stable monochromatic light or the mixed light of multiple single wavelength composition.
As preferably, described workbench being provided with sample cell and XY axle head, described measuring samples is placed in sample cell, and described sample cell is fixed on XY axle head, and described sample cell can be the most movable along XY axle, it is achieved multiple samples are tested automatically.
The beneficial effects of the utility model, the crest such as the application uses photoluminescence measurement to excite the light of luminescence 415,452nm, 465nm, 478nm, highly sensitive, and have stronger signal as reference；And without reference corrected, avoid the measurement error caused after making dirty because of reference sheet；And spot size can arbitrarily adjust during photoluminescence measurement, it is possible to the measurement of the competent multiple big small sample such as little granule or bulky grain；The photoluminescence spectra figure of the application disposably measures multiple peak position, diamond is can be determined whether by spectrogram, determine whether synthesizing diamond simultaneously, Ia type rough diamond can also be determined whether, only using an equipment just can complete the work that present multiple devices measure, detection efficiency is high, low cost, practical, facilitate user the most accurately to screen different types of diamond.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is decision flowchart of the present utility model.
Detailed description of the invention
With specific embodiment, this utility model is described in further details below in conjunction with the accompanying drawings.
nullSuch as Fig. 1、Shown in 2，Specific embodiment described in the utility model is a kind of luminescence generated by light diamond detection device，Including light source 1、Workbench 2、Array detector 3、Data processing terminal 4，It is placed with measuring samples 5 on described workbench 2，The wavelength of described light source 1 is monochromatic light or the mixed light that wavelength is less than or equal to 410nm，Described light source 1 sends light and is irradiated on measuring samples 5,Make measuring samples 5 obtain energy and generation excites and causes luminescence，Luminous light detects after injecting array detector 3，The light that described measuring samples sends after exciting includes fluorescence、Raman light and hole are luminous，And then the photon information of luminous light is converted to the signal of telecommunication according to wavelength order，Then after this signal of telecommunication being digital signal by analog digital conversion，It is transferred to data processing terminal 4 and forms real-time photoluminescence spectra figure.
In order to filter out bias light, reducing ambient interferences, be provided with the high-pass filter 6 for absorbing incident bias light between described array detector 3 and measuring samples 5, high-pass filter 6 filters out incident bias light, reduces ambient interferences, improves the identification of spectrogram.
In order to reduce interference, the first optical filter 7 for filtering incident illumination it is provided with between described light source 1 and measuring samples 2, the light of other wavelength that light source sends can be filtered, it is thus achieved that stable monochromatic light or the mixed light of multiple single wavelength composition by the first optical filter 7.Can filter part interference light by the first optical filter, can also obtain monochromatic light or the mixed light of multiple single wavelength composition simultaneously, the measurement process being interference reduces, and improves the accuracy judged.
In order to improve the efficiency of detection, being provided with sample cell and XY axle head on described workbench, described measuring samples is placed in sample cell, and described sample cell is fixed on XY axle head, described sample cell can be the most movable along XY axle, it is achieved multiple samples are tested automatically.By automatically moving the workbench position in XY direction, can automatically switch measuring samples, can realize the operation that multiple sample is tested automatically, be greatly improved work efficiency.
During use, the first step, irradiate, measuring samples is placed in wavelength and is irradiated less than or equal under the light source of 410nm；
Second step, obtain spectrogram, by array detector detection measuring samples be stimulated produce light, and then the photon information of light is converted to the signal of telecommunication according to wavelength order, then after this signal of telecommunication being digital signal by analog digital conversion, being transferred to data processing terminal and form photoluminescence spectra figure, the light that described measuring samples sends after exciting includes that fluorescence, Raman light and hole are luminous；
3rd step, analyzes spectrogram,
A. carry out preliminary judgement, according to characteristic peak, it is determined that whether this measuring samples is diamond, but do not differentiate between natural or artificial,
The wavelength equation of characteristic peak is (A1 is incident illumination, and A2 is emergent light, unit nm):
A2=1000000/ (10000000/A1-1332)；
If the wavelength of the Raman light that measuring samples sends meets above-mentioned formula result of calculation, then judge that this measuring samples belongs to diamond, but now can't distinguish natural or artificial.
B. with post analysis photoluminescence spectra figure has the crest of 415nm, then judge that this measuring samples is as -a-type rough diamond；
C. with the crest having 452nm, 465nm, 478nm in post analysis photoluminescence spectra figure, then can judge that this measuring samples is as -a-type rough diamond further, but iff having 452nm, 465nm, 478nm, there is no the crest of 415nm, then need to detect whether suspection is artificial synthesizing diamond further；
D. with post analysis photoluminescence spectra figure has the crest of 737nm, then judge that diamond is as CVD synthesizing diamond；
E. with post analysis photoluminescence spectra figure has the crest of 986nm, then judge that diamond is as High Temperature High Pressure synthesizing diamond or HPHT-treated diamond (being called for short HPHT process)；
F., photoluminescence spectra figure has arbitrary crest of 496nm, 504nm, 575nm, 595nm, then judges that this measuring samples is through artificial treatment；
G. the crest occurred other, can determine the cause along with going deep into further of research, and all wavelengths, due to the difference of detector, there may be the error of 1nm；
F. and then the photon information of light is converted to after then this signal of telecommunication is digital signal by analog digital conversion by the signal of telecommunication according to wavelength order, it is transferred to data processing terminal and forms photoluminescence spectra figure, by luminescence generated by light light figure, color and the intensity of sample luminescence generated by light can be calculated, the judgement of diamond is provided with further reference to.
The crests such as the application uses photoluminescence measurement to excite the light of luminescence 415,452nm, 465nm, 478nm, highly sensitive, and have stronger signal as reference；And without reference corrected, avoid the measurement error caused after making dirty because of reference sheet；And spot size can arbitrarily adjust during photoluminescence measurement, it is possible to the measurement of the competent multiple big small sample such as little granule or bulky grain；The photoluminescence spectra figure of the application disposably measures multiple peak position, diamond is can be determined whether by spectrogram, determine whether synthesizing diamond simultaneously, Ia type rough diamond can also be determined whether, only using an equipment just can complete the work that present multiple devices measure, detection efficiency is high, low cost, practical, facilitate user the most accurately to screen different types of diamond.
The above; it is only preferred embodiment of the present utility model; not in order to limit this utility model, every any trickle amendment, equivalent and improvement made above example according to technical spirit of the present utility model, within should be included in the protection domain of technical solutions of the utility model.
Claims (4)
1. a luminescence generated by light diamond detection device, it is characterized in that: include light source, workbench, array detector, data processing terminal, it is placed with measuring samples on described workbench, the wavelength of described light source is monochromatic light or the mixed light that wavelength is less than or equal to 410nm, described light source sends light and is irradiated on measuring samples, make sample obtain energy and generation excites and causes luminescence, luminous light detects after injecting array detector, and then the photon information of luminous light is converted to the signal of telecommunication according to wavelength order, then after this signal of telecommunication being digital signal by analog digital conversion, it is transferred to data processing terminal and forms real-time photoluminescence spectra figure.
Luminescence generated by light diamond the most according to claim 1 detection device, it is characterized in that: between described array detector and measuring samples, be provided with the high-pass filter for absorbing incident bias light, high-pass filter filters out incident bias light, reduces ambient interferences, improves the identification of spectrogram.
Luminescence generated by light diamond the most according to claim 1 detection device, it is characterized in that: between described light source and measuring samples, be provided with the first optical filter for filtering incident illumination, the light of other wavelength that light source sends can be filtered, it is thus achieved that stable monochromatic light or the mixed light of multiple single wavelength composition by the first optical filter.
Luminescence generated by light diamond the most according to claim 1 detection device, it is characterized in that: on described workbench, be provided with sample cell and XY axle head, described measuring samples is placed in sample cell, described sample cell is fixed on XY axle head, described sample cell can be the most movable along XY axle, it is achieved multiple samples are tested automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620382893.5U CN205643160U (en) | 2016-04-28 | 2016-04-28 | Photoluminescence diamond detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620382893.5U CN205643160U (en) | 2016-04-28 | 2016-04-28 | Photoluminescence diamond detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205643160U true CN205643160U (en) | 2016-10-12 |
Family
ID=57062194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620382893.5U Ceased CN205643160U (en) | 2016-04-28 | 2016-04-28 | Photoluminescence diamond detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205643160U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784648A (en) * | 2016-04-28 | 2016-07-20 | 广州标旗电子科技有限公司 | Photoluminescent diamond detection method and photoluminescent diamond detection device |
| CN109580574A (en) * | 2019-01-21 | 2019-04-05 | 国检中心深圳珠宝检验实验室有限公司 | A kind of ruby fluorescence detection system and its ruby fluorescence detection method |
| US11346788B2 (en) | 2019-11-26 | 2022-05-31 | Gemological Institute Of America, Inc. (Gia) | Fluorescence imaging of gemstone on transparent stage |
-
2016
- 2016-04-28 CN CN201620382893.5U patent/CN205643160U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784648A (en) * | 2016-04-28 | 2016-07-20 | 广州标旗电子科技有限公司 | Photoluminescent diamond detection method and photoluminescent diamond detection device |
| CN109580574A (en) * | 2019-01-21 | 2019-04-05 | 国检中心深圳珠宝检验实验室有限公司 | A kind of ruby fluorescence detection system and its ruby fluorescence detection method |
| US11346788B2 (en) | 2019-11-26 | 2022-05-31 | Gemological Institute Of America, Inc. (Gia) | Fluorescence imaging of gemstone on transparent stage |
| TWI794686B (en) * | 2019-11-26 | 2023-03-01 | 美商美國寶石學院公司 | Fluorescence imaging of gemstone on transparent stage |
| US11674905B2 (en) | 2019-11-26 | 2023-06-13 | Gemological Institute Of America, Inc. (Gia) | Fluorescence imaging of gemstone on transparent stage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105784648A (en) | Photoluminescent diamond detection method and photoluminescent diamond detection device | |
| CN103308499B (en) | A kind of blue-ray LED excitated fluorescent powder performance testing device and method of testing | |
| CN205643160U (en) | Photoluminescence diamond detection device | |
| CN107091822A (en) | The device and its detection method of double light source activation luminescence generated by light detection semiconductor defects | |
| CN103411676A (en) | Color measurement instrument for measuring object color by use of linear variable filter | |
| CN104198388A (en) | Online water quality monitoring device based on composite spectrum measurement | |
| CN106092895B (en) | A kind of water body chlorophyll concentration in situ detection device and its detection method | |
| CN104614338B (en) | Infrared gas analysis equipment and its analysis method | |
| Fabbri et al. | Mid-infrared Fiber-Optics Reflectance Spectroscopy: a noninvasive technique for remote analysis of painted layers. Part I: technical setup | |
| CN104091864A (en) | Multi-wavelength near-infrared LED manufacturing method and gas detection method based on PbSe quantum dots | |
| CN100498285C (en) | Investigator based on optical fibre raster | |
| CN206420773U (en) | A kind of portable formaldehyde examination device based on fluorescence probe method | |
| CN103162942B (en) | A kind of lower conversion luminescence film conversion efficiency measuring method | |
| CN102032984A (en) | Method for measuring properties of light of LED | |
| CN103776782A (en) | Detection method and detection instrument for identifying CVD (Chemical Vapor Deposition) synthetic diamond | |
| CN105911029B (en) | A kind of system for measuring sample luminescence generated by light under profound hypothermia high-intensity magnetic field | |
| RU2372607C1 (en) | Device for sorting diamonds | |
| CN107919854A (en) | A kind of detection device and its detection method of solar cell IV characteristics | |
| CN115901694A (en) | Method for identifying producing area of amber | |
| CN104568799A (en) | Monochromatic light composited light scanning type luminosity absorption detection system | |
| CN109490750A (en) | A kind of instrument and method detecting LED chip | |
| CN103792217A (en) | Coffee concentration detection system and method based on light-emitting diode (LED) induced fluorescence spectrum | |
| CN109374585B (en) | Method and device for measuring fluorescence quantum yield | |
| CN111982864B (en) | Absolute photoluminescence quantum efficiency measuring method related to excitation light intensity | |
| CN206161529U (en) | Portable combined detection analysis appearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 510663 Guangdong Guangzhou high tech Industrial Development Zone, Science City, Cai Fang Road No. 7 701 Patentee after: Guangzhou Standard Flag photoelectric technology development Limited by Share Ltd Address before: 510663 Guangdong, Guangzhou, Guangzhou hi tech Industrial Development Zone, Science City, Cai Po Road, No. 7, 701B Patentee before: Guangzhou Biaoqi Electronic Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20180829 Decision number of declaring invalidation: 37012 Granted publication date: 20161012 |
|
| IW01 | Full invalidation of patent right |