CN212780544U - Diamond identification device - Google Patents
Diamond identification device Download PDFInfo
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- CN212780544U CN212780544U CN202021784124.0U CN202021784124U CN212780544U CN 212780544 U CN212780544 U CN 212780544U CN 202021784124 U CN202021784124 U CN 202021784124U CN 212780544 U CN212780544 U CN 212780544U
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Abstract
The utility model belongs to the technical field of the diamond appraisal, a diamond appraisal device is disclosed, include: the device comprises a case, a case panel, a test rod base, a sample table, a power supply circuit, and a short wave ultraviolet light source, an ultraviolet sensor, a signal amplifying circuit and a result display circuit which are connected with the power supply circuit; the case panel is fixed in the case; the first end of the test rod is hinged with the test rod base through a hinge, the test rod base is fixed on a chassis panel, and the sample table is fixed on the chassis panel and is positioned in the range of the rotation stroke of the test rod; the short wave ultraviolet light source is fixed in the sample table and is positioned right below the test hole formed in the sample table; the ultraviolet sensor is arranged at the second end of the test rod and can acquire an ultraviolet signal emitted by the short-wave ultraviolet light source when the identification operation is executed; the ultraviolet sensor is connected with the result display circuit through the signal amplification circuit and the signal amplification circuit in sequence. The utility model provides a diamond appraisal device not only can conveniently realize not inlaying the lithodomous appraisal, can also conveniently realize the lithodomous appraisal after inlaying.
Description
Technical Field
The utility model relates to a diamond appraisal technical field, in particular to diamond appraisal device.
Background
In the prior art, a diamond identifying instrument which is simple in structure and convenient to carry is formed by utilizing the characteristic that natural diamonds absorb short-wave ultraviolet light strongly and synthetic diamonds have higher transmittance, and is used for distinguishing the natural diamonds from the synthetic diamonds. The device mainly detects the diamonds by projecting short-wave ultraviolet light to the diamonds from the periphery of the diamonds and then collecting projected light signals, but for the diamonds which are already inlaid on the jewelry, especially the jewelry such as rings, the inlaid metal bracket blocks the transmission of ultraviolet light, so that the devices can only test non-inlaid diamond samples, and the application range is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a diamond appraisal device solves among the prior art portable diamond appraisal appearance and appraises the inconvenient technical problem of operation to the diamond of inlaying.
In order to solve the technical problem, the utility model provides a diamond identification device, include: the device comprises a case, a case panel, a test rod base, a sample table, a short wave ultraviolet light source, an ultraviolet sensor, a signal amplification circuit, a result display circuit and a power supply circuit;
the case panel is fixed in the case, the first end of the test rod is hinged with the test rod base through a hinge, the test rod base is fixed on the case panel, the sample table is fixed on the case panel and is positioned in the rotating stroke range of the test rod;
the short wave ultraviolet light source is fixed in the sample table and is positioned right below a test hole formed in the sample table;
the ultraviolet sensor is arranged at the second end of the test rod and can acquire an ultraviolet light signal emitted by the short-wave ultraviolet light source when the identification operation is executed;
the ultraviolet sensor is connected with the signal amplification circuit, and the signal amplification circuit is connected with the result display circuit;
the power supply circuit is respectively connected with the short wave ultraviolet light source, the signal amplification circuit and the result display circuit.
Further, the diamond evaluation device further comprises: a diaphragm;
the diaphragm is arranged on the case panel and is positioned on the periphery of the test hole.
Further, the short wave ultraviolet light source is a C-band ultraviolet LED lamp.
Further, the chassis includes: a lower box body and a box cover;
the case panel is fixed on the lower case body, and the case cover is buckled on the lower case body.
Further, the case lid passes through the hinge with the box links to each other down.
Further, the signal amplification circuit includes: an instrumentation amplifier;
the ultraviolet sensor is connected with the input end of the instrumentation amplifier, and the output end of the instrumentation amplifier is connected with the result display circuit.
Further, the signal amplification circuit further includes: a preamplifier;
the preamplifier is connected between the ultraviolet sensor and the input end of the instrumentation amplifier.
Further, the result display circuit includes: the integrated comparator and the indicating lamp set;
the input end of the integrated comparator is connected with the output end of the signal amplification circuit and the threshold signal end, and the output end of the integrated comparator is connected with the indicator lamp set.
Further, the integrated comparator comprises: a first comparator and a second comparator; the indicator light set includes: a first indicator light and a second indicator light;
the reverse input ends of the first comparator and the second comparator are respectively connected with the output end of the signal amplification circuit and the threshold signal end, the output end of the first comparator is connected with the first indicator light, and the output end of the second comparator is connected with the second indicator light.
Furthermore, the power supply circuit is provided with an on-off button and a status indicator lamp.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the diamond identification device provided by the embodiment of the application, the sample table is arranged on the panel of the case, the test hole is formed in the sample table, the short wave ultraviolet light source is arranged below the test hole, so that ultraviolet light beams are projected to diamonds, jewelries and the like to be detected, ultraviolet light beam signals passing through the diamonds to be detected are collected through the ultraviolet sensor hinged to the second end of the test rod on the panel of the case, then the light signal intensity at the moment is obtained through the signal amplification circuit and the result display circuit, and therefore whether the diamonds are natural or synthetic is judged; it is worth noting that the measuring signal is more conveniently obtained through the light beam projection and receiving mode compared with the existing annular projection mode, and the identification result is obtained; meanwhile, for diamond ring type jewelry, through holes are generally reserved at the bottom of a bracket for fixing a diamond, so that an ultraviolet light beam can pass through the bracket, and a rotatable test rod can enable an ultraviolet sensor to enter a ring after the ring is inverted and vertically placed on a sample table, so that an optical signal penetrating through a diamond sample is received without shielding, and reliable and convenient identification is realized; compared with the prior art, the identification of the jewelry is more convenient and reliable.
Drawings
Fig. 1 is a schematic structural view of a diamond identifier according to an embodiment of the present invention;
FIG. 2 is a top view of the diamond identifier provided by the embodiment of the present invention
Fig. 3 is a schematic diagram of a signal amplifying circuit according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a structure display circuit according to an embodiment of the present invention.
Detailed Description
The embodiment of this application is through providing a diamond appraisal device, solves among the prior art portable diamond appraisal appearance to the inconvenient technical problem of the diamond appraisal operation that has inlayed.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.
Referring to fig. 1 and 2, a diamond evaluation apparatus comprising: the device comprises a case, a case panel 3, a test rod 4, a test rod base 6, a sample table 7, a short wave ultraviolet light source 9, an ultraviolet sensor 5, a signal amplification circuit 10, a result display circuit 11 and a power supply circuit 12.
This will be explained in detail below.
The case panel 3 is fixed in the case, the first end of the test rod 4 is hinged with the test rod base 6 through a hinge, the test rod base 6 is fixed on the case panel 3, the sample table 7 is fixed on the case panel 3, and the sample table 7 is located in the range of the rotation stroke of the test rod 4; the short wave ultraviolet light source 9 is fixed in the sample table 7, and the short wave ultraviolet light source 9 is positioned right below a test hole formed in the sample table 7; the ultraviolet sensor 5 is arranged at the second end of the test rod 4 and can acquire an ultraviolet light signal emitted by the short-wave ultraviolet light source 9 when the identification operation is executed.
When the identification operation is executed, a diamond 30 to be detected or a diamond embedded on a ring is placed on the sample table 7, an ultraviolet light beam formed by an ultraviolet light signal emitted by the short wave ultraviolet light source 9 after passing through the test hole penetrates through the diamond 30 to be detected and then is transmitted upwards, the test rod 4 rotates to the position above the sample table 7 for searching books, so that the ultraviolet sensor 5 is positioned right above the test hole, the projected ultraviolet light beam signal is accurately captured, and the identification signal capture is completed.
It is worth mentioning that for diamonds set on a ring, the diamond ring can be placed upside down and vertically at the testing hole; since the diamond inlay is only a locked ring structure on the ring, there is a through hole, so the transmitted ultraviolet light beam can also pass through the through hole and be captured by the ultraviolet sensor 5. Simultaneously, the test rod 4 articulates on the test rod base 6 to can be through the rotation adjustment position, can stretch into in the ring, thereby do not have the transmitted ultraviolet beam signal of catching that shelters from, for current structure, can promote detection efficiency by a wide margin, reduce the complexity.
The ultraviolet sensor 5 is connected with the signal amplifying circuit 10, and the signal amplifying circuit 10 is connected with the result display circuit 11; the power supply circuit 12 is connected with the short wave ultraviolet light source 9, the signal amplification circuit 10 and the result display circuit 11 respectively to realize power supply.
Therefore, when the ultraviolet sensor 5 captures an ultraviolet signal, the ultraviolet signal is converted into an electric signal to be output, the electric signal is amplified by the signal amplifying circuit 10, and then the electric signal is compared with a set threshold value by the result display circuit to display a comparison result, so that a visual identification result is obtained.
Referring to fig. 3, the signal amplification circuit 10 includes: an instrumentation amplifier 21; the ultraviolet sensor 5 is connected with the input end of the instrument amplifier 21, the output end of the instrument amplifier 21 is connected with the result display circuit 11, and the output electric signal of the ultraviolet sensor 5 is amplified and output to facilitate identification.
Generally, the signal amplifying circuit 10 further includes: a preamplifier 20; the preamplifier 20 is connected between the ultraviolet sensor 5 and the input terminal of the instrumentation amplifier 21, and thus can output a stable and reliable electrical signal.
Referring to fig. 4, the result display circuit 11 includes: an integrated comparator 22 and a set of indicator lights; the input end of the integrated comparator 22 is connected with the output end of the signal amplifying circuit 10 and the threshold signal end Vr, and the output end of the integrated comparator 22 is connected with the indicator light group.
The amplified electrical signal and the set threshold signal are simultaneously connected to two input ends of the integrated comparator 22, and the comparison result is output and used for turning on the indicator lights of the indicator light group so as to indicate the identification result.
Here, the threshold is set to be generally 2V or less for natural diamond and 2V or more for synthetic diamond.
Of course, the indication lamp set is only turned on or off by indication, and may also be a sound indication module such as a buzzer, or a display module such as a display, and is not limited specifically here.
Specifically, the integrated comparator 22 includes: a first comparator 31 and a second comparator 32; the indicator light set includes: a first indicator lamp 14 and a second indicator lamp 15; the inverting input terminals of the first comparator 31 and the second comparator 32 are respectively connected to the output terminal of the signal amplifying circuit 10 and the threshold signal terminal Vr, the output terminal of the first comparator 31 is connected to the first indicator lamp 14, and the output terminal of the second comparator 32 is connected to the second indicator lamp 15.
For the convenience of operation, the power supply circuit 12 is provided with an on-off button 13 and a status indicator light 16 for indicating the working status of the device.
The start-stop button 13 is pressed to switch on the power supply, the battery lights the short wave ultraviolet light source 9 through the power supply circuit 12 for boosting and stabilizing voltage, the short wave ultraviolet light enters the ultraviolet sensor 5 on the test rod after penetrating through the sample, the signal amplification circuit 10 amplifies the electric signal to form a Ve signal and outputs the Ve signal to the test result display circuit 11, and if the signal Ve of the tested ultraviolet light is larger than the set threshold Vr1, the first indicator light 15 lights to indicate the synthetic diamond; if the signal Ve is less than the set threshold Vr2, the second indicator light 16 is illuminated to indicate a natural diamond.
The power supply circuit 12 in this embodiment adopts two batteries of No. 7 connected in series, is installed at the rear part of the chassis, provides direct current with voltage of 6v (vcc) for the instrument through boosting, triggers an alarm when the electric quantity of the battery is insufficient and the battery voltage is less than 2.2 v, and the third indicator light 14 lights and flickers to indicate that the accuracy of the test result is influenced by the battery electric quantity.
Further, the diamond evaluation device further comprises: a diaphragm 8; the diaphragm 8 is arranged on the case panel 3, and the diaphragm 8 is positioned at the periphery of the test hole. Wherein, the diaphragm is an 8-position manual diaphragm, the outer diameter is 28 mm, the inner diameter is 18 mm, the aperture size can be adjusted by a handle, and the aperture variation range is 1 mm-18 mm; the corresponding test hole had an air drop of 1.5 mm. The diamond 30 can be positioned at the test hole by adjusting the diaphragm 8.
In this embodiment, the short wave ultraviolet light source 9 is a C-band ultraviolet LED lamp.
Further, the chassis includes: a lower box body 1 and a box cover 2;
the case panel 3 is fixed on the lower case body 1, and the case cover 2 is buckled on the lower case body 1.
Of course, the box cover 2 can also be connected with the lower box body 1 through a hinge.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the diamond identification device provided by the embodiment of the application, the sample table is arranged on the panel of the case, the test hole is formed in the sample table, the short wave ultraviolet light source is arranged below the test hole, so that ultraviolet light beams are projected to diamonds, jewelries and the like to be detected, ultraviolet light beam signals passing through the diamonds to be detected are collected through the ultraviolet sensor hinged to the second end of the test rod on the panel of the case, and then the intensity of light signals of the diamond at the moment is obtained through the signal amplification circuit and the result display circuit, so that whether the diamonds are natural or synthetic is judged; it is worth noting that the measuring signal is more conveniently obtained through the light beam projection and receiving mode compared with the existing annular projection mode, and the identification result is obtained; meanwhile, for diamond ring type jewelry, through holes are generally reserved at the bottom of a bracket for fixing a diamond, so that an ultraviolet light beam can pass through the bracket, and a rotatable test rod can enable an ultraviolet sensor to enter a ring after the ring is inverted and vertically placed on a sample table, so that an optical signal penetrating through a diamond sample is received without shielding, and reliable and convenient identification is realized; compared with the prior art, the identification of the jewelry is more convenient and reliable.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A diamond evaluation device comprising: the device comprises a case, a case panel, a test rod base, a sample table, a short wave ultraviolet light source, an ultraviolet sensor, a signal amplification circuit, a result display circuit and a power supply circuit;
the case panel is fixed in the case, the first end of the test rod is hinged with the test rod base through a hinge, the test rod base is fixed on the case panel, the sample table is fixed on the case panel and is positioned in the rotating stroke range of the test rod;
the short wave ultraviolet light source is fixed in the sample table and is positioned right below a test hole formed in the sample table;
the ultraviolet sensor is arranged at the second end of the test rod and can acquire an ultraviolet light signal emitted by the short-wave ultraviolet light source when the identification operation is executed;
the ultraviolet sensor is connected with the signal amplification circuit, and the signal amplification circuit is connected with the result display circuit;
the power supply circuit is respectively connected with the short wave ultraviolet light source, the signal amplification circuit and the result display circuit.
2. The diamond evaluation apparatus of claim 1, wherein said diamond evaluation apparatus further comprises: a diaphragm;
the diaphragm is arranged on the case panel and is positioned on the periphery of the test hole.
3. The diamond evaluation apparatus of claim 1 wherein said short wave uv light source is a C-band uv LED lamp.
4. The diamond evaluation apparatus of claim 1, wherein said housing comprises: a lower box body and a box cover;
the case panel is fixed on the lower case body, and the case cover is buckled on the lower case body.
5. The diamond evaluation apparatus of claim 4 wherein said box lid is connected to said lower box by a hinge.
6. The diamond evaluation apparatus of claim 1 wherein said signal amplification circuit comprises: an instrumentation amplifier;
the ultraviolet sensor is connected with the input end of the instrumentation amplifier, and the output end of the instrumentation amplifier is connected with the result display circuit.
7. The diamond evaluation apparatus of claim 6 wherein said signal amplification circuit further comprises: a preamplifier;
the preamplifier is connected between the ultraviolet sensor and the input end of the instrumentation amplifier.
8. The diamond evaluation apparatus of claim 1, wherein said result display circuit comprises: the integrated comparator and the indicating lamp set;
the input end of the integrated comparator is connected with the output end of the signal amplification circuit and the threshold signal end, and the output end of the integrated comparator is connected with the indicator lamp set.
9. The diamond evaluation apparatus of claim 8, wherein said integrated comparator comprises: a first comparator and a second comparator; the indicator light set includes: a first indicator light and a second indicator light;
the reverse input ends of the first comparator and the second comparator are respectively connected with the output end of the signal amplification circuit and the threshold signal end, the output end of the first comparator is connected with the first indicator light, and the output end of the second comparator is connected with the second indicator light.
10. The diamond evaluation apparatus of claim 1 wherein said power supply circuit is provided with an on/off button and a status indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784124.0U CN212780544U (en) | 2020-08-24 | 2020-08-24 | Diamond identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784124.0U CN212780544U (en) | 2020-08-24 | 2020-08-24 | Diamond identification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212780544U true CN212780544U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021784124.0U Active CN212780544U (en) | 2020-08-24 | 2020-08-24 | Diamond identification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212780544U (en) |
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2020
- 2020-08-24 CN CN202021784124.0U patent/CN212780544U/en active Active
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