阅读说明：本技术 一种拉曼光谱鉴定宝石装置及其方法 (Raman spectrum gem identification device and method thereof ) 是由 范文莉 张丽娟 潘凤 于 2019-11-26 设计创作，主要内容包括：本发明涉及一种拉曼光谱鉴定宝石装置及其方法,拉曼光谱鉴定宝石装置包括箱体、第一抽屉和第二抽屉,第一抽屉和第二抽屉均可抽出的置于箱体内,第一抽屉处于第二抽屉的上端；第一抽屉内设置有磁性固定装置,磁性固定装置与第一抽屉的底部连接；磁性固定装置对宝石进行固定；第一抽屉底部对应磁性固定装置处设置有出光孔；第二抽屉内设置有拉曼光谱仪,拉曼光谱仪对应处于出光孔的下方；箱体上设置有显示屏,拉曼光谱仪与显示屏通过线路连接；拉曼光谱仪发出光源穿过出光孔照射在宝石上。相对现有技术,本发明能对宝石进行稳固,提升检测鉴定精准性。(The invention relates to a Raman spectrum identification gem device and a method thereof, wherein the Raman spectrum identification gem device comprises a box body, a first drawer and a second drawer, wherein the first drawer and the second drawer are both arranged in the box body in a withdrawable manner, and the first drawer is positioned at the upper end of the second drawer; a magnetic fixing device is arranged in the first drawer and is connected with the bottom of the first drawer; the magnetic fixing device is used for fixing the gem; a light outlet hole is formed at the bottom of the first drawer corresponding to the magnetic fixing device; a Raman spectrometer is arranged in the second drawer and correspondingly positioned below the light outlet hole; the display screen is arranged on the box body, and the Raman spectrometer is connected with the display screen through a line; the Raman spectrometer emits a light source to irradiate the gem through the light outlet hole. Compared with the prior art, the invention can stabilize the gem and improve the detection and identification accuracy.)

1. A raman spectroscopy gemstone identification apparatus, comprising: the drawer comprises a box body (1), a first drawer (2) and a second drawer (3), wherein both the first drawer (2) and the second drawer (3) can be pulled out and placed in the box body (1), and the first drawer (2) is positioned at the upper end of the second drawer (3);

a magnetic fixing device (4) is arranged in the first drawer (2), and the magnetic fixing device (4) is connected with the bottom of the first drawer (2); the magnetic fixing device (4) fixes the jewel (9); a light outlet (5) is formed in the position, corresponding to the magnetic fixing device (4), of the bottom of the first drawer (2);

a Raman spectrometer (6) is arranged in the second drawer (3), and the Raman spectrometer (6) is correspondingly positioned below the light outlet hole (5); a display screen (7) is arranged on the box body (1), and the Raman spectrometer (6) is connected with the display screen (7) through a line; the Raman spectrometer (6) emits light source which penetrates through the light outlet hole (5) and irradiates on the gem (9).

2. A raman spectroscopic identification gemstone apparatus as recited by claim 1 wherein: the magnetic fixing device (4) comprises two guide rails (4.1) arranged in parallel and two sliding seats (4.2), and the two guide rails (4.1) are fixedly connected with the bottom of the first drawer (2); both of the carriages (4.2) are placed on two of the guide rails (4.1), each of the carriages (4.2) being movable along the two guide rails (4.1);

a first magnet (4.3) is arranged on one sliding seat (4.2), and the first magnet (4.3) is fixedly connected with the sliding seat (4.2); a second magnet (4.4) is arranged on the other sliding seat (4.2), and the second magnet (4.4) is fixedly connected with the sliding seat (4.2); the first magnet (4.3) and the second magnet (4.4) are magnetically attracted;

and one end of each sliding seat (4.2) close to each other is wrapped with a silica gel sleeve (4.5).

3. A raman spectroscopic identification gemstone apparatus as recited by claim 1 wherein: the Raman spectrometer (6) comprises a laser (6.1), a lens (6.2), a dichroic mirror (6.3), a confocal microscope (6.4), a silicon detector (6.5) and a processor (6.6); the laser (6.1), the lens (6.2) and the dichroic mirror (6.3) are sequentially arranged and are positioned on the same horizontal line; the dichroic mirror (6.3) is arranged obliquely; the confocal microscope (6.4) is placed at the upper end of the dichroic mirror (6.3), the confocal microscope (6.4) being located below the gemstone (9); the silicon detector (6.5) is positioned below the dichroic mirror (6.3), and the confocal microscope (6.4), the dichroic mirror (6.3) and the silicon detector (6.5) are positioned on the same vertical line; the silicon detector (6.5) is connected with the processor (6.6); the processor (6.6) is arranged at the bottom of the inner side of the second drawer (3);

light emitted by the laser (6.1) is emitted to the dichroic mirror (6.3) through the lens (6.2), the dichroic mirror (6.3) reflects the light, and the reflected light is irradiated on the gem (9) through the confocal microscope (6.4); the light rays are subjected to Rayleigh scattering and Raman scattering after passing through the jewel (9), the scattered light subjected to Rayleigh scattering and the scattered light subjected to Raman scattering pass through the head of the confocal microscope (6.4) and then irradiate the head to the dichroic mirror (6.3), the dichroic mirror (6.3) enables the Raman scattered light in the scattered light to transmit and reflect the Rayleigh scattered light, the Raman scattered light transmitted through the dichroic mirror (6.3) irradiates the silicon detector (6.5), the silicon detector (6.5) detects the light rays of the Raman scattered light to obtain optical signals, the processor (6.6) processes the optical signals to obtain Raman spectrum data, the Raman spectrum data are matched with the stored Raman spectrum data of the jewel (9), and the jewel identification result data are obtained.

4. A raman spectroscopic identification gemstone device according to claim 3, wherein: the processor (6.6) is connected with the display screen (7) through a line, and the line is of a winding telescopic structure.

5. A raman spectroscopic identification gemstone apparatus as recited by claim 1 wherein: a hemispherical base (3.1) and a supporting plate (3.2) are arranged in the second drawer (3), the supporting plate (3.2) is arranged at the upper end of the base (3.1), and the supporting plate (3.2) is fixedly connected with the base (3.1); the Raman spectrometer (6) is arranged at the upper end of the supporting plate (3.2), and the Raman spectrometer (6) is detachably connected with the supporting plate (3.2);

one end of the supporting plate (3.2) is fixedly connected with a first magnetic block (3.3), a sliding block (8) is arranged on the side wall of the box body (1) corresponding to the second drawer (3), a second magnetic block is arranged in the sliding block (8), and the first magnetic block (3.3) and the second magnetic block are magnetically attracted; the magnetic field acting force between the first magnetic block (3.3) and the second magnetic block is larger than the magnetic field acting force between the first magnetic block (3.3) and the first magnet (4.3) or the second magnet (4.4).

6. A raman spectroscopic identification gemstone device according to claim 5, wherein: a groove is formed in the bottom of the inner side of the second drawer (3) corresponding to the base (3.1), and the lower end part of the base (3.1) is matched with the groove in structure; the base (3.1) is rotatably limited in the groove.

7. A method of identifying a gemstone according to raman spectroscopy according to any one of claims 1 to 6, comprising the steps of:

step 1, drawing out the first drawer (2), pulling out the magnetic fixing device (4), and putting the jewel (9) into the magnetic fixing device (4); a second magnetic block in the sliding block (8) magnetically attracts the first magnetic block (3.3), the sliding block (8) is moved, the sliding block (8) drives the supporting plate (3.2) to rotate through the second magnetic block and the first magnetic block (3.3), and the supporting plate (3.2) drives the Raman spectrometer (6) to rotate to a set position;

and 2, light rays emitted by the Raman spectrometer (6) pass through the light outlet hole (5) and irradiate on the gem (9), the light rays are subjected to Raman scattering after passing through the gem (9), the generated scattered light is reflected back to the Raman spectrometer (6) through the light outlet hole (5), and the Raman spectrometer (6) processes the scattered light to obtain gem identification result data.

Technical Field

The invention relates to the technical field of gem identification, in particular to a Raman spectrum gem identification device and a Raman spectrum gem identification method.

Background

As the jewelry market expands, more and more artificial and counterfeit gemstones are present in the market, which are becoming fake and do not. Traditional gemstone identification mainly depends on the experience of an identification person, and means such as a magnifying glass, a gravimeter, a microscope, a refractometer and the like are used.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, an object of the present invention is to provide a raman spectroscopy gemstone identification apparatus and method thereof, which can stabilize a gemstone and improve the accuracy of detection and identification.

The technical scheme for solving the technical problems is as follows: a Raman spectrum identification gem device comprises a box body, a first drawer and a second drawer, wherein the first drawer and the second drawer are arranged in the box body in a withdrawable mode, and the first drawer is located at the upper end of the second drawer;

a magnetic fixing device is arranged in the first drawer and connected with the bottom of the first drawer; the magnetic fixing device is used for fixing the gem; a light outlet hole is formed in the bottom of the first drawer corresponding to the magnetic fixing device;

a Raman spectrometer is arranged in the second drawer and correspondingly positioned below the light outlet hole; the box body is provided with a display screen, and the Raman spectrometer is connected with the display screen through a circuit; the Raman spectrometer emits a light source to irradiate the gem through the light outlet hole.

The invention has the beneficial effects that: the box body can provide a dark box environment for identifying the jewel in the first drawer, and the accuracy of jewel detection and identification is improved; moreover, the box body, the first drawer and the second drawer are used for packaging, so that the Raman spectrum identification gem device is convenient to carry, and the convenience of detection and identification is improved; the magnetic fixing device can effectively fix the jewel and can adapt to various jewels with different structures; the structure is simple, and the cost can be effectively reduced.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the magnetic fixing device comprises two guide rails arranged in parallel and two sliding seats, and the two guide rails are fixedly connected with the bottom of the first drawer; the two sliding seats are arranged on the two guide rails, and each sliding seat can move along the two guide rails;

a first magnet is arranged on one sliding seat and fixedly connected with the sliding seat; a second magnet is arranged on the other sliding seat and is fixedly connected with the sliding seat; the first magnet and the second magnet are magnetically attracted;

two the one end that the slide is close to each other all wraps up there is the silica gel cover.

The beneficial effect of adopting the further scheme is that: the two sliding seats clamp the jewel, can adapt to various shapes and structures of the jewel, improves the stability of the jewel and is convenient for a Raman spectrometer to accurately detect and identify the jewel; two slides press from both sides tightly the precious stone through two silica gel covers, avoid the precious stone wearing and tearing to appear.

Further, the Raman spectrometer comprises a laser, a lens, a dichroic mirror, a confocal microscope, a silicon detector and a processor; the laser, the lens and the dichroic mirror are sequentially arranged and are positioned on the same horizontal line; the dichroic mirrors are arranged obliquely; the confocal microscope is arranged at the upper end of the dichroic mirror and is positioned below the gem; the silicon detector is positioned below the dichroic mirror, and the confocal microscope, the dichroic mirror and the silicon detector are positioned on the same vertical line; the silicon detector is connected with the processor; the processor is arranged at the bottom of the inner side of the second drawer;

the light emitted by the laser device is emitted to the dichroic mirror through the lens, the dichroic mirror reflects the light, and the reflected light is irradiated on the gem through the confocal microscope; the light rays generate Rayleigh scattering and Raman scattering after passing through the jewel, the scattered light generating Rayleigh scattering and the scattered light generating Raman scattering pass through the confocal microscope lens and then irradiate to the dichroic mirror again, the dichroic mirror enables the Raman scattering light in the scattered light to transmit and reflect the Rayleigh scattering light, the Raman scattering light transmitted by the dichroic mirror irradiates to the silicon detector, the silicon detector detects the light rays of the Raman scattering light to obtain optical signals, the processor processes the optical signals to obtain Raman spectrogram data, and the Raman spectrogram data are matched with the stored jewel Raman spectrogram data to obtain jewel identification result data.

The beneficial effect of adopting the further scheme is that: the dichroic mirror is utilized to reflect laser rays to the confocal microscope, and the rays scattered by the Rayleigh of the gem can be filtered, so that the number of elements is reduced, the volume of the spectrometer is reduced, and the Raman spectrometer provided by the invention has the advantages of small volume and portability.

Further, the processor is connected with the display screen through a line, and the line is of a winding telescopic structure.

The beneficial effect of adopting the further scheme is that: utilize the circuit to convolute extending structure, when being convenient for the second drawer to take out, can stretch out and draw back, can effectively adapt to the second drawer and take out and the return, increase of service life.

Furthermore, a hemispherical base and a supporting plate are arranged in the second drawer, the supporting plate is arranged at the upper end of the base, and the supporting plate is fixedly connected with the base; the Raman spectrometer is arranged at the upper end of the supporting plate and is detachably connected with the supporting plate;

one end of the supporting plate is fixedly connected with a first magnetic block, a sliding block is arranged on the side wall of the box body corresponding to the second drawer, a second magnetic block is arranged in the sliding block, and the first magnetic block and the second magnetic block are magnetically attracted; the magnetic field acting force between the first magnetic block and the second magnetic block is larger than the magnetic field acting force between the first magnetic block and the first magnet or the second magnet.

The beneficial effect of adopting the further scheme is that: the angle that the raman spectroscopy appearance sent the light to the precious stone is adjusted, can realize that different directions detect the appraisal to the precious stone, promotes the precision of appraisal, avoids the appraisal result that the individual flaw of precious stone influences the precious stone.

Furthermore, a groove is formed in the bottom of the inner side of the second drawer corresponding to the base, and the lower end part of the base is matched with the groove structure; the rotatable spacing of base is in the recess.

The beneficial effect of adopting the further scheme is that: the base is in the spacing rotation of recess, and the raman spectroscopy of being convenient for shifts, and the accurate directive precious stone of light that the guarantee raman spectroscopy sent.

Another technical solution of the present invention for solving the above technical problems is as follows: a method of identifying a gemstone by raman spectroscopy, comprising the steps of:

step 1, drawing out the first drawer, pulling open the magnetic fixing device, and putting the jewel into the magnetic fixing device; a second magnetic block in the sliding block magnetically attracts the first magnetic block, the sliding block is moved, the sliding block drives the supporting plate to rotate through the second magnetic block and the first magnetic block, and the supporting plate drives the Raman spectrometer to rotate to a set position;

and 2, the light emitted by the Raman spectrometer passes through the light outlet hole to irradiate on the gem, the light is subjected to Raman scattering after passing through the gem, the generated scattered light is reflected back to the Raman spectrometer through the light outlet hole, and the Raman spectrometer processes the scattered light to obtain gem identification result data.

The invention has the beneficial effects that: the box body, the first drawer and the second drawer are used for packaging, so that the Raman spectrum identification gem device is convenient to carry, and the convenience of detection and identification is improved; the magnetic fixing device can effectively fix the jewel and can adapt to various jewels with different structures; the gems can be detected and identified in different directions, and the accuracy of identification is improved.

Drawings

FIG. 1 is a front view of a Raman spectroscopy apparatus for identifying a gemstone according to the present invention;

FIG. 2 is a front view of a Raman spectroscopy apparatus of the present invention;

FIG. 3 is a schematic view of a Raman spectroscopy apparatus for identifying gemstones in accordance with the present invention;

FIG. 4 is a schematic structural view of a magnetic fixing device according to the present invention;

FIG. 5 is a schematic structural diagram of the Raman spectrometer of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a box body 2 and a first drawer;

3. the second drawer, 3.1, the base, 3.2, the supporting plate, 3.3 and the first magnet;

4. the device comprises a magnetic fixing device, 4.1, a guide rail, 4.2, a sliding seat, 4.3, a first magnet, 4.4, a second magnet, 4.5 and a silica gel sleeve;

5. a light exit hole;

6. a Raman spectrometer 6.1, a laser 6.2, a lens 6.3, a dichroic mirror 6.4, a confocal microscope 6.5, a silicon detector 6.6 and a processor;

7. display screen, 8, slider, 9, precious stone.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, a raman spectroscopy identification gem apparatus comprises a case 1, a first drawer 2 and a second drawer 3, wherein the first drawer 2 and the second drawer 3 are both arranged in the case 1 in a withdrawable manner, and the first drawer 2 is arranged at the upper end of the second drawer 3;

a magnetic fixing device 4 is arranged in the first drawer 2, and the magnetic fixing device 4 is connected with the bottom of the first drawer 2; the magnetic fixing device 4 fixes the gem 9; a light outlet 5 is arranged at the bottom of the first drawer 2 corresponding to the magnetic fixing device 4;

a Raman spectrometer 6 is arranged in the second drawer 3, and the Raman spectrometer 6 is correspondingly positioned below the light outlet 5; the box body 1 is provided with a display screen 7, and the Raman spectrometer 6 is connected with the display screen 7 through a circuit; the raman spectrometer 6 emits a light source through the light exit aperture 5 onto the gemstone 9.

The first drawer 2 is drawn out, the magnetic fixing device 4 is pulled open, and the jewel 9 is placed in the magnetic fixing device 4; the light emitted by the Raman spectrometer 6 passes through the light outlet 5 and irradiates on the gem 9, the light is Raman scattered after passing through the gem 9, the generated scattered light is reflected back to the Raman spectrometer 6 through the light outlet 5, and the Raman spectrometer 6 processes the scattered light to obtain gem identification result data;

the box body 1 can provide a dark box environment for identifying the jewel 9 in the first drawer 2, and the accuracy of jewel detection and identification is improved; moreover, the box body 1, the first drawer 2 and the second drawer 3 are used for packaging, so that the Raman spectrum identification gem device is convenient to carry, and the convenience of detection and identification is improved;

the magnetic fixing device 4 can effectively fix the jewel 9 and can adapt to various jewels 9 with different structures; the structure is simple, and the cost can be effectively reduced.

In the above embodiment, the magnetic fixing device 4 includes two parallel guide rails 4.1 and two sliding seats 4.2, and the two guide rails 4.1 are fixedly connected with the bottom of the first drawer 2; the two sliding seats 4.2 are arranged on the two guide rails 4.1, and each sliding seat 4.2 can move along the two guide rails 4.1;

a first magnet 4.3 is arranged on one sliding seat 4.2, and the first magnet 4.3 is fixedly connected with the sliding seat 4.2; a second magnet 4.4 is arranged on the other sliding seat 4.2, and the second magnet 4.4 is fixedly connected with the sliding seat 4.2; the first magnet 4.3 and the second magnet 4.4 are magnetically attracted;

two the one end that slide 4.2 are close to each other all wraps up there is the silica gel cover 4.5.

The two sliding seats 4.2 are respectively moved along opposite directions, the jewel 9 is put between the two sliding seats 4.2, and then the two sliding seats 4.2 are loosened; the two sliding seats 4.2 are close to each other under the action of the magnetic field action force of the first magnet 4.3 and the second magnet 4.4, the two sliding seats 4.2 clamp the jewel 9, the jewel 9 can adapt to various shapes and structures of the jewel 9, the stability of the jewel 9 is improved, and the accurate detection and identification of the jewel 9 by the Raman spectrometer 6 are facilitated; the two sliding seats 4.2 clamp the jewel 9 through the two silica gel sleeves 4.5, so that the jewel 9 is prevented from being worn.

In the above embodiment, the raman spectrometer 6 comprises a laser 6.1, a lens 6.2, a dichroic mirror 6.3, a confocal microscope 6.4, a silicon detector 6.5 and a processor 6.6; the laser 6.1, the lens 6.2 and the dichroic mirror 6.3 are sequentially arranged and are positioned on the same horizontal line; the dichroic mirror 6.3 is arranged obliquely; the confocal microscope 6.4 is arranged at the upper end of the dichroic mirror 6.3, and the confocal microscope 6.4 is arranged below the gem 9; the silicon detector 6.5 is positioned below the dichroic mirror 6.3, and the confocal microscope 6.4, the dichroic mirror 6.3 and the silicon detector 6.5 are positioned on the same vertical line; the silicon detector 6.5 is connected with the processor 6.6 through a line; the processor 6.6 is arranged at the bottom of the inner side of the second drawer 3;

light emitted by the laser 6.1 is emitted to the dichroic mirror 6.3 through the lens 6.2, the dichroic mirror 6.3 reflects the light, and the reflected light is irradiated on the gem 9 through the confocal microscope 6.4; the light rays generate Rayleigh scattering and Raman scattering after passing through the jewel 9, the scattered light generating Rayleigh scattering and the scattered light generating Raman scattering pass through the head of the confocal microscope 6.4 and then irradiate to the dichroic mirror 6.3 again, the dichroic mirror 6.3 enables the Raman scattering light in the scattered light to transmit and reflect the Rayleigh scattering light, the Raman scattering light transmitted by the dichroic mirror 6.3 irradiates to the silicon detector 6.5, the silicon detector 6.5 detects the light rays of the Raman scattering light to obtain optical signals, the processor 6.6 processes the optical signals to obtain Raman spectrogram data, and the Raman spectrogram data are matched with the stored Raman spectrogram data of the jewel 9 to obtain jewel identification result data.

The dichroic mirror 6.3 is utilized to reflect laser rays to the confocal microscope 6.4, and also can filter the rays rayleigh scattered by the gem 9, so that the number of elements is reduced, the volume of the spectrometer is reduced, and the raman spectrometer provided by the invention has the advantages of small volume and portability.

In the above embodiment, the processor 6.6 is connected to the display 7 through a wire, and the wire is in a winding telescopic structure.

Utilize the circuit to convolute extending structure, when the second drawer 3 of being convenient for is taken out, can stretch out and draw back, can effectively adapt to second drawer 3 and take out and the return, increase of service life.

In the above embodiment, a hemispherical base 3.1 and a supporting plate 3.2 are arranged in the second drawer 3, the supporting plate 3.2 is arranged at the upper end of the base 3.1, and the supporting plate 3.2 is fixedly connected with the base 3.1; the Raman spectrometer 6 is arranged at the upper end of the supporting plate 3.2, and the Raman spectrometer 6 is detachably connected with the supporting plate 3.2;

one end of the supporting plate 3.2 is fixedly connected with a first magnetic block 3.3, a sliding block 8 is arranged on the side wall of the box body 1 corresponding to the second drawer 3, a second magnetic block is arranged in the sliding block 8, and the first magnetic block 3.3 and the second magnetic block are magnetically attracted; the magnetic field acting force between the first magnetic block 3.3 and the second magnetic block is larger than the magnetic field acting force between the first magnetic block 3.3 and the first magnet 4.3 or the second magnet 4.4.

The movable sliding block 8 can drive the second magnetic block to move, the first magnetic block 3.3 is driven to move in the moving process of the second magnetic block, the first magnetic block 3.3 drives the supporting plate 3.2 to deflect, the supporting plate 3.2 drives the base 3.1 to deflect, and the supporting plate 3.2 simultaneously drives the Raman spectrometer 6 to deflect; thereby adjust the angle that raman spectroscopy appearance 6 sent light to precious stone 9, can realize that different directions detect the appraisal to precious stone 9, promote the precision of appraisal, avoid the appraisal result that the individual flaw of precious stone influences the precious stone.

In the above embodiment, a groove is provided at the bottom of the inner side of the second drawer 3 corresponding to the base 3.1, and the lower end of the base 3.1 is matched with the groove structure; the rotatable limit of base 3.1 is in the recess.

The base 3.1 rotates in the groove in a limiting way, so that the Raman spectrometer 6 can move conveniently, and light rays emitted by the Raman spectrometer 6 can be accurately emitted to the gem 9.

A method of identifying a gemstone by raman spectroscopy, comprising the steps of:

step 1, drawing out the first drawer 2, pulling the magnetic fixing device 4 open, and placing the jewel 9 in the magnetic fixing device 4; a second magnetic block in the sliding block 8 magnetically attracts the first magnetic block 3.3, the sliding block 8 is moved, the sliding block 8 drives the supporting plate 3.2 to rotate through the second magnetic block and the first magnetic block 3.3, and the supporting plate 3.2 drives the Raman spectrometer 6 to rotate to a set position;

and 2, the light emitted by the Raman spectrometer 6 passes through the light outlet 5 and irradiates on the gem 9, the light is Raman scattered after passing through the gem 9, the generated scattered light is reflected back to the Raman spectrometer 6 through the light outlet 5, and the Raman spectrometer 6 processes the scattered light to obtain gem identification result data.

The box body 1 can provide a dark box environment for identifying the jewel 9 in the first drawer 2, and the accuracy of jewel detection and identification is improved; moreover, the box body 1, the first drawer 2 and the second drawer 3 are used for packaging, so that the Raman spectrum identification gem device is convenient to carry, and the convenience of detection and identification is improved;

the magnetic fixing device 4 can effectively fix the jewel 9 and can adapt to various jewels 9 with different structures; the structure is simple, and the cost can be effectively reduced;

the angle of the light emitted by the Raman spectrometer 6 to the gem 9 can be adjusted, detection and identification of the gem 9 in different directions can be achieved, the accuracy of identification is improved, and the identification result of the gem is prevented from being influenced by individual flaws of the gem.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.