CN102175686B - Method for measuring cutting ratio of imbue diamond - Google Patents
Method for measuring cutting ratio of imbue diamond Download PDFInfo
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- CN102175686B CN102175686B CN201110003581.0A CN201110003581A CN102175686B CN 102175686 B CN102175686 B CN 102175686B CN 201110003581 A CN201110003581 A CN 201110003581A CN 102175686 B CN102175686 B CN 102175686B
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Abstract
The invention discloses a method for measuring the cutting ratio of imbue diamond, and the method is characterized in that a sample table, an imaging system, a collimating system and a computer system are utilized, wherein the imaging system comprises a CCD (Charge Coupled Device) camera and a CCD power supply; the CCD camera is installed at the top of the collimating system; the collimating system comprises a main lifting table and a focusing system; the focusing system comprises an adjusting knob and an optical stepless zoom lens; the adjusting knob can move a sample to be detected forwards, backwards, leftwards and rightwards; the optical stepless zoom lens is positioned at the lower part of the CCD camera; and the computer system is provided with a video card and connected with the CCD camera through a video wire. The method disclosed by the invention can be used for measuring the bare diamond and the ratio of the imbue diamond and simultaneously has the following technical characteristics: high speed, high accuracy and large measuring range are achieved; the diamond with 0.1-15ct can be measured; and the method can be used for selecting the type of the measured imbue diamond.
Description
(1) technical field
The present invention relates to a kind of diamond ratio measuring method, particularly a kind of assay method of inlaid diamond cut ratio.
(2) background technology
The quality assessment of diamond is generally weighed from color, weight, cleanliness and cut four aspects.Detection classifier in the past does mainly to be undertaken by naked eyes, and larger human factor causes testing result disunity.External production now has a kind of instrument being called automatic diamond ratio instrument, and automatically can measure the cut proportion of the naked stone of diamond easily, speed is fast, and precision is high.Domestic existing tens units buy this equipment.But clear stipulaties set diamond grading in China's national standard, the diamond inlayed cannot detect with automatic diamond ratio instrument.Go back at present neither one unit in the world and develop ratio instrument for inlaid diamond and simple assay method.About the mensuration of inlaid diamond ratio, most of detection department, can only go to obtain ratiometric result roughly by the method for visual estimation, deviation is large.And annual China has the Diamond Jewelry of nearly ten million part to come into the market, the market demand of diamond grading is very large.
Since the issuing and implementation of GB/T16554-2003 " diamond grading " national standard, the classification of inlaid diamond ornaments is become to an important content of current China quality inspection organization.But due to after winding wheel setting, the automatic cut grading instrument that can not re-use naked diamond detects, and can only with the naked eye roughly estimate.This method is due to a great extent according to the subjective factor of individual, and error is very large, and speed is slow.If there is a kind of method can detect inlaid diamond ornaments easily as the automatic diamond ratio instrument of current import, current conventional damascene diamond cutter classification will be made greatly to simplify, and error is very little.The development of the assay method of inlaid diamond cut ratio becomes the important need of market and industry naturally.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides the assay method of the inlaid diamond cut ratio that a kind of speed is fast, precision is high.
The present invention is achieved through the following technical solutions:
An assay method for inlaid diamond cut ratio, its special character is: adoption rate analyzer measures, and comprises the steps: (1), installation procedure: apparatus preparation fixing disc, installs application software according to prompting; (2) working procedure: after program installs, runs the diamond ratio system under start menu, occurs picture; (3) prepare to measure: open switch, place sample to be measured, after connection, occur the projected image of diamond, carefully adjust image, form three clearly demarcated regions; (4) circle shown in sign is removed with software: select top menu: type-> inlaid diamond, screen can produce a circle; Use+,-change round size; The position of circle is changed with arrow key; Determine that rear MOUSE right button selects relative region circle; After three circles are all determined, ratiometric result please be put.
The assay method of inlaid diamond cut ratio of the present invention, it improves further and is: described ratiometric result utilizes SPECIAL SCALE gauge to calibrate: calibration criterion chi providing with the machine, mark has two kinds of conventional desirable cut diamond ratio battens, wherein: G-> is GIA standard, E-> European standard; Operation steps:
(1), high-ranking officers' fiducial mark object staff is parallel is placed on thing platform;
(2), adjustable lens ZOOM, thing platform focal plane, XY displacement make:
A, a certain desirable cut diamond scale map is made to be positioned at sighting center;
B, scale map account for 75% of the whole ken;
C, clear picture, without ghost image;
(3), by picking up the method for key point, obtaining critical data, calculating result;
(4), compare and differentiation:
With true value difference:
A, angular error are not more than 2 degree to AC AP;
It is diamond diameter that B, proportional error T/D*100%, CH/D*100%, PH/D*100 are all not more than 3%, D.
The present invention, in order to measure inlaid diamond, must obtain with different levels striograph of diamond, through repetition test, devises special scattering light source system, and fluorescent light source, after scattering, makes the feature measured of diamond fully demonstrate, meets measuring condition.Of the present inventionly come into operation, layman just can operate easily, thus reduces most professional manual work, reduce cost, and testing result accurately and reliably.
The present invention mainly adopts the sample clamp seat of particular design, make testing sample unique point completely exposed, utilize optical imaging system, adopt CCD imaging technique by the image collection of microsize sample in computing machine, and change sample image size by optical zoom system, calculate result after machine process as calculated, coordinatograph.
The present invention adjusts by two-dimensional stage, rotates adjusting knob, can move testing sample all around.Because testing sample varies in size, in order to obtain better measurement effect, suitable zoom operation to be carried out to image.This instrument is realized by optics Free-scaling camera lens gap adjustment.
Energy Fast Measurement inlaid diamond ratio of the present invention, has following technical characterstic simultaneously:
1, speed is fast: the cut ratio that can detect diamond fast, detects total data within 100 seconds;
2, precision is high: can differentiate 0.005mm;
3, measurement range is large: 0.1ct-15ct diamond all can measure;
4, can the cut ratio of quantitative measurement inlaid diamond.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of proportion test instrument of the present invention;
Fig. 2 is the schematic front view of inlaid diamond sample stage of the present invention;
Fig. 3 is that the present invention forms trizonal diamond echo when measuring inlaid diamond;
Fig. 4 is the ratiometric result figure of the present invention when measuring inlaid diamond;
Fig. 5 is that the present invention calibrates inlaid diamond ratiometric result figure.
In figure, 1 base, 2 astigmatism cylinders, 3 openings, 4 jaw shape binding clips, 5 fixed mounts, 6 dwangs, 7 turning handles, 16 CCD cameras, 17 CCD power supplys, 18 adjusting knobs, 19 optics Free-scaling camera lenses, 20 montants, 21 transverse arms, 22 worktable, 23 stop tight button.
(5) embodiment
Fig. 1, Fig. 2 are a kind of specific embodiment of the present invention.This embodiment is the assay method of inlaid diamond cut ratio, naked brill sample stage in Fig. 1 changes the inlaid diamond sample stage in Fig. 2 into, this analyzer comprises sample stage, imaging system, accurate burnt system and computer system, imaging system comprises interconnective CCD camera 16 and CCD power supply 17 two parts, and CCD camera 16 is arranged on accurate burnt system head; The burnt system of described standard comprises main lifting table and focusing system two parts, and focusing system comprises the adjusting knob 18 that can move testing sample all around and the optics Free-scaling camera lens 19 being positioned at CCD camera 16 bottom; Described computer system is equipped with video card, be connected with CCD camera 16 by video line, usage data line connects computer and CCD camera 16, and wherein RJ-45 connector connects computer, lotus flower joint connects CCD camera 16, CCD camera 16 is connected with power supply simultaneously.Main lifting table forms primarily of montant 20, transverse arm 21 and the worktable 22 that is positioned at bottom, and the middle part of montant 20 is provided with only tight button 23.Sample stage comprises specimen holder device and is fixed on the astigmatism cylinder 2 on base 1, and described astigmatism cylinder 2 is cylindric, and its underpart is provided with opening 3; Described specimen holder device front end is jaw shape binding clip 4, and rear portion is provided with the fixed mount 5 that can be placed on base 1; Jaw shape binding clip 4 is connected by dwang 6 with fixed mount 5, and the end of dwang 6 is turning handle 7.Like this when the sample of front end needs adjusting position, the turning handle 7 rotating end reaches the object of adjustment, and this sample stage is a kind of special scattering light source system, and fluorescent light source is after scattering, the feature measured of diamond is fully demonstrated, meets measuring condition.
Use the process of this device measuring inlaid diamond as follows:
Adoption rate analyzer measures, and comprises the steps: (1), installation procedure: apparatus preparation fixing disc, installs application software according to prompting; (2) working procedure: after program installs, runs the diamond ratio system under start menu, occurs picture; (3) prepare to measure: open switch, place sample to be measured, after connection, occur the projected image of diamond, carefully adjust image, as shown in Figure 3, form three clearly demarcated regions:; (4) circle shown in sign is removed with software:
The circle indicated as shown in the figure is removed with software.
Select top menu: type-> inlaid diamond, screen can produce a circle.
Use+,-change round size
The position of circle is changed with arrow key
Determine region circle (MOUSE right button) that rear selection is relative
As shown in Figure 4, after three circles are all determined, please point " ratiometric result ".
Then calibration function design is carried out:
This method utilizes SPECIAL SCALE gauge to calibrate.
Calibration criterion chi providing with the machine, mark has two kinds of conventional desirable cut diamond ratio battens.
Wherein: G-> is GIA standard
E-> European standard
Its corresponding data invests in the survey report that producer provides, and owing to being glass delineation batten, has long-term stability.
Operation steps:
1, high-ranking officers' fiducial mark object staff is parallel is placed on thing platform.
2, adjustable lens ZOOM, thing platform focal plane, XY displacement make:
A, a certain desirable cut diamond scale map is made to be positioned at sighting center
B, scale map account for about 75% of the whole ken
C, clear picture, without ghost image
3, by the method for pickup key point, obtain critical data, calculate result.
4, compare and differentiation (as shown in Figure 5):
With true value difference:
Angular error is not more than 2 degree to AC AP
It is diamond diameter that proportional error T/D*100% CH/D*100% PH/D*100 is all not more than 3%, D.
Claims (3)
1. an assay method for inlaid diamond cut ratio, is characterized in that: adoption rate analyzer measures, and comprises the steps: (1), installation procedure: proportion test instrument is equipped with a fixing disc, installs application software according to prompting; (2) working procedure: after program installs, runs the diamond ratio system under start menu, occurs picture; (3) prepare to measure: open switch, place sample to be measured, after connection, occur the projected image of diamond, carefully adjust image, form three clearly demarcated regions; (4) circle shown in sign is removed with software: select top menu: type-> inlaid diamond, screen can produce a circle; Use+,-change round size; The position of circle is changed with arrow key; Determine that rear MOUSE right button selects relative region circle; After three circles are all determined, ratiometric result please be put; Described proportion test instrument comprises sample stage, imaging system, accurate burnt system and computer system, and imaging system comprises interconnective CCD camera (16) and CCD power supply (17) two parts, and CCD camera (16) is arranged on accurate burnt system head; The burnt system of described standard comprises main lifting table and focusing system two parts, and focusing system comprises the adjusting knob (18) that can move testing sample all around and the optics Free-scaling camera lens (19) being positioned at CCD camera (16) bottom; Described computer system is equipped with video card, is connected with CCD camera (16) by video line; Described sample stage comprises specimen holder device and is fixed on the astigmatism cylinder (2) on base (1), and described astigmatism cylinder (2) is cylindric, and its underpart is provided with opening (3); Described specimen holder device front end is jaw shape binding clip (4), and rear portion is provided with the fixed mount (5) that can be placed on base (1); Described jaw shape binding clip (4) is connected by dwang (6) with fixed mount (5), and the end of dwang (6) is turning handle (7).
2. the assay method of inlaid diamond cut ratio according to claim 1, it is characterized in that: described ratiometric result utilizes calibration criterion chi to calibrate: calibration criterion chi providing with the machine, mark has two kinds of conventional desirable cut diamond ratio battens, wherein: G-> is GIA standard, E-> European standard; Operation steps:
(1), high-ranking officers' fiducial mark object staff is parallel is placed on thing platform;
(2), adjustable lens ZOOM, thing platform focal plane, XY displacement make:
A, a certain desirable cut diamond scale map is made to be positioned at sighting center;
B, scale map account for 75% of the whole ken;
C, clear picture, without ghost image;
(3), by picking up the method for key point, obtaining critical data, calculating result;
(4), compare and differentiation:
With true value difference:
A, angular error: for hat angle AC, booth angle AP, error is not more than 2 degree;
B, proportional error: platform wide than T/D*100%, crown height than CH/D*100%, booth deeply than PH/D*100, it is diamond diameter that error is all not more than 3%, D.
3. the assay method of inlaid diamond cut ratio according to claim 1, it is characterized in that: described main lifting table is primarily of montant (20), transverse arm (21) and worktable (22) composition being positioned at bottom, and the middle part of montant (20) is provided with only tight button (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110003581.0A CN102175686B (en) | 2011-01-10 | 2011-01-10 | Method for measuring cutting ratio of imbue diamond |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110003581.0A CN102175686B (en) | 2011-01-10 | 2011-01-10 | Method for measuring cutting ratio of imbue diamond |
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| CN102175686A CN102175686A (en) | 2011-09-07 |
| CN102175686B true CN102175686B (en) | 2014-12-17 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6786733B2 (en) * | 2002-10-15 | 2004-09-07 | Overseas Diamonds Inc. | Computer-implemented method of and system for teaching an untrained observer to evaluate a gemstone |
| EP1795888B1 (en) * | 2005-12-09 | 2017-08-23 | Sarine Color Technologies Ltd. | Apparatus for generating data for determining a property of a gemstone |
| CN101539530B (en) * | 2008-03-20 | 2011-08-31 | 香港城市大学 | Method and device for grading colors of diamonds |
| CN101793840A (en) * | 2010-03-29 | 2010-08-04 | 中国地质大学（武汉） | Diamond cutting parameter measurement method and measuring device |
-
2011
- 2011-01-10 CN CN201110003581.0A patent/CN102175686B/en not_active Expired - Fee Related
Non-Patent Citations (5)
| Title |
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| 兰延等.Sarin钻石切工比例仪的溯源问题.《深圳职业技术学院学报》.2007,30-32. * |
| 吕林素等.碧玺的加工技法.《超硬材料工程》.2006,第18卷(第05期),56-58. * |
| 吕林素等.红、蓝宝石的加工技法.《宝石和宝石学杂志》.2006,第8卷(第01期),22-24. * |
| 张蕴韬等.八箭八心钻石的切工条件.《宝石和宝石学杂志》.2006,第8卷(第01期),33-35. * |
| 李宏博等.浅论欧泊的加工.《地球学报》.2007,第28卷(第02期),190-194. * |
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Inventor after: Liu Xiaowei Inventor after: Cheng Youfa Inventor after: Li Jianjun Inventor after: Fan Chunli Inventor after: Wang Yue Inventor before: Cheng Youfa Inventor before: Zhang Zhigang Inventor before: Wang Yue Inventor before: Li Jianjun |
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Free format text: CORRECT: INVENTOR; FROM: CHENG YOUFA ZHANG ZHIGANG WANG YUE LI JIANJUN TO: LIU XIAOWEI CHENG YOUFA LI JIANJUN FAN CHUNLI WANG YUE |
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Granted publication date: 20141217 Termination date: 20160110 |
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