CN104075999B - Automatic observing device used for mineral spectrum test - Google Patents

Abstract

The invention belongs to the field of experimental detection, and in particular relates to an automatic observation device for mineral spectrum detection. The automatic observation device includes: a chassis, a sample chamber, a first mineral spectroscope, a second mineral spectroscope, a first camera, a second camera, and a control system; the LED light source is set in the chassis, the first mineral spectroscope, the second mineral spectroscope The objective lens end of the mirror is inserted into the chassis, and the eyepiece ends of the first mineral beam splitter and the second mineral beam splitter are respectively connected with the first camera and the second camera; the first camera and the second camera are respectively connected through the first transmission cable and the second The transmission cable is connected to the data card; the data card is connected to the control system through the third transmission cable; the LED light source in the chassis is connected to the driving circuit through the fourth transmission cable, and the driving circuit is connected to the control system through the fifth transmission cable. The invention improves the detection efficiency and identification accuracy of mineral samples, and reduces the requirements for the proficiency and experience of detection personnel.

Description

Automatic Observation Device for Spectral Detection of Minerals

technical field

The invention belongs to the field of experimental detection, and in particular relates to an automatic observation device for mineral spectrum detection, which is used to realize fixed and automatic observation of mineral samples.

Background technique

At present, in mineralogy, the selective absorption of full-spectrum visible light by different mineral samples is often used as an important feature for mineral identification and identification. There are generally two known methods for spectroscopic detection of mineral samples: the most commonly used is the transmitted light detection method, the full-spectrum visible light directly penetrates through the mineral sample to be tested and enters the spectroscope, and the transmission spectrum can be observed; the other method It is a reflected light detection method. The full-spectrum visible light is reflected and refracted in the mineral sample to be tested, and then enters the spectroscope. In the process of operation, these two detection methods adopt the observation method of manual clamping, that is, the light source, spectroscope and mineral samples to be tested all rely on manual clamping. This method is not only inefficient and highly dependent on the experience and proficiency of the inspector, but also has many problems:

(1) The light source used is a high-power fiber optic lamp, which consumes a lot of power and has a complex structure. The fiber optic hose is very easy to damage, and the high temperature generated by long-term work will destroy mineral samples;

(2) When holding a mineral sample with a small size, a small amount of light will enter the spectroscope through the finger, and the spectrum of human blood will be mixed into the observed spectrum, which will bring great errors to the test results;

(3) The observation space is not airtight, and some stray light is directly injected into the observation hole of the spectroscope, reducing the observed spectral resolution;

(4) The observation results in the spectroscope eyepiece cannot be archived;

(5) The transmission spectrum and reflection spectrum of the same sample cannot be compared.

Patent No. ZL200320125527.4 utility model patent "a clamping device for gemstones" discloses a clamping device for gemstones, which consists of a beam splitter clamping frame, a gemstone fixing frame, a central connecting frame and a light source clip frame composition. Pull out the center connecting frame from the gemstone holder, put the gemstone to be identified from the shaft hole on the right side of the gemstone holder, and fix the gemstone in the gemstone holder by rotating the three gemstone holder adjustment bolt handles, Then insert the central connecting frame into the right shaft hole of the gemstone holder, then fix the light source on the light source holder, and finally insert the beam splitter into the central shaft hole of the beam splitter holder, and make the beam splitter In close contact with soft shades and stones. This utility model is only suitable for transmitted light observation, and cannot be used in reflected light observation method, and the fiber optic lamp works for a long time and heats up to easily damage the mineral sample to be tested, and the observation results cannot be preserved.

To sum up, in the prior art, the mineral spectrum detection operation is complicated, and the detection equipment used is easily damaged; the high temperature generated during the operation of the equipment not only generates huge energy consumption, but also easily causes damage to mineral samples, which is contrary to the "non-destructive The basic principle of "detection"; the detection process is greatly affected by the external environment, resulting in large errors in the detection results, low resolution, and cannot be archived, let alone the results obtained by the two detection methods of transmission and reflection can not be accurately compared and analyzed . The existence of the above problems directly reduces the work efficiency of mineral spectrum detection and the accuracy of detection results.

Contents of the invention

In order to overcome the defects of the prior art, the present invention provides an automatic detection device for mineral spectrum detection, which uses a mechanical device to fix the mineral spectroscope and the mineral sample to be tested, uses a low-energy LED light source as the emission light source, and utilizes The camera collects the detection results.

To achieve the above object, the present invention adopts the following scheme:

An automatic observation device for mineral spectrum detection, including: a chassis, a sample compartment, a first mineral spectroscope, a second mineral spectroscope, a first camera, a second camera, and a control system; the chassis is equipped with an LED light source, and the sample compartment is set At the bottom of the case; the objective end of the first mineral spectroscope is inserted into the case, and the eyepiece end is connected to the first camera; the objective end of the second mineral spectroscope is inserted into the case, and the eyepiece end is connected to the second camera; the first camera passes through the second camera A transmission cable is connected to the data card; the second camera is connected to the data card through the second transmission cable; the data card is connected to the control system through the third transmission cable; the LED light source in the chassis is connected to the driving circuit through the fourth transmission cable, and the driving circuit It is connected with the control system through the fifth transmission cable.

Compared with the prior art, the beneficial effects of the present invention are as follows:

(1) Using a mechanical device to fix the mineral spectroscope and the sample is not only convenient, efficient, stable and reliable, but also the detection space is completely sealed, eliminating the influence of the external environment.

(2) Using a full-spectrum LED with long life and low energy consumption as the emission light source not only has simple operation and low failure rate, but also will not damage the mineral sample to be tested during the long-term detection process.

(3) The reflection spectrum and transmission spectrum of the same sample are respectively collected by the camera, and archived and compared for analysis, which can improve the accuracy of the detection results.

(4) The detection efficiency and identification accuracy of mineral samples are improved, and the requirements for the proficiency and experience of detection personnel are reduced.

Description of drawings

Fig. 1 is the schematic diagram of the front view of the automatic observation device for mineral spectrum detection;

Figure 2 is a schematic diagram of the front view of the chassis of the automatic observation device for mineral spectrum detection;

Fig. 3 is a schematic left view of the chassis of the automatic observation device for mineral spectrum detection;

Fig. 4 is a right-view schematic diagram of an automatic observation device for mineral spectrum detection;

Fig. 5 is a schematic rear view of the chassis of the automatic observation device for mineral spectrum detection;

Fig. 6 is a schematic sectional view of the chassis of the automatic observation device for mineral spectrum detection;

Fig. 7 is a schematic diagram of the front view of the sample chamber of the automatic observation device for mineral spectrum detection;

Fig. 8 is a top view diagram of a sample chamber of an automatic observation device for mineral spectrum detection;

Fig. 9 is a schematic diagram of the right side view of the sample chamber of the automatic observation device for mineral spectrum detection;

Fig. 10 is a schematic cross-sectional view of the sample compartment of the automatic observation device for mineral spectrum detection;

Fig. 11 is a front view of the shading sheet of the automatic observation device for mineral spectrum detection.

Detailed ways

As shown in Figure 1, the automatic observation device for mineral spectrum detection includes: a chassis 1, a sample chamber 2, a first mineral spectroscope 3, a second mineral spectroscope 4, a first camera 5, a second camera 6, a control System 7; an LED light source is provided in the cabinet 1, and the sample chamber 2 is located at the bottom of the cabinet 1; the objective end of the first mineral beam splitter 3 is inserted into the cabinet 1, and the eyepiece end is connected with the first camera 5; the second mineral beam splitter 4 The objective lens end of the object lens is inserted in the cabinet 1, and the eyepiece end is connected with the second camera 6; the first camera 5 is connected with the data card 512 through the first transmission cable 511; the second camera 6 is connected with the data card 512 through the second transmission cable 611; The card 512 is connected to the control system 7 through the third transmission cable 513; the LED light source in the chassis is connected to the driving circuit 712 through the fourth transmission cable 713, and the driving circuit 712 is connected to the control system 7 through the fifth transmission cable 711.

After the first camera 5 reads the picture at the eyepiece hole of the first mineral spectroscope 3, the observed information is transmitted to the data card 512 by the first transmission cable 511, and the information is transmitted to the data card 512 by the third transmission cable 513 after the data card 512. Control system 7; the control system 7 can observe the image in the eyepiece, and can also store the observed image and output it to a designated file.

After the second camera 6 reads the picture at the eyepiece hole of the second mineral spectroscope 4, the observed information is transmitted to the data card 512 by the second transmission cable 611, and the information is transmitted to the data card 512 by the third transmission cable 513 after the data card 512 Control system 7; the control system 7 can observe the image in the eyepiece, and can also store the observed image and output it to a designated file.

The first camera 5 and the first mineral beam splitter 3 are connected with a first airtight cover 311, and the first airtight cover 311 can play the role of connecting the first camera 5 and the first mineral beam splitter 3 and blocking the interference of external light. When using the first airtight cover 311 to connect the first camera 5 with the eyepiece end of the first mineral beamsplitter 3, the first camera 5 can read the picture at the eyepiece hole of the first mineral beamsplitter 3 in real time.

The second camera 6 and the second mineral beam splitter 4 are connected with a second airtight cover 411, and the second airtight cover 411 can play the role of connecting the second camera 6 and the second mineral beam splitter 4 and blocking the interference of external light. When using the second airtight cover 411 to connect the second camera 6 with the eyepiece end of the second mineral beamsplitter 4, the second camera 6 can read the picture at the eyepiece hole of the second mineral beamsplitter 4 in real time.

As shown in Figure 2, Figure 3, Figure 4, and Figure 6, the chassis 1 is made up of a front chassis shell 111, an upper left chassis shell 112, a rear chassis shell 113, a right chassis shell 114, and a lower chassis shell 115. The chassis shell 112, the rear chassis shell 113, the right chassis shell 114, and the lower chassis shell 115 are fixedly connected to form a closed space;

The front chassis shell 111, the rear chassis shell 113, the right chassis shell 114, and the lower chassis shell 115 are all composed of a single plane; The angle between the shell surface 1120 and the lower case shell 115 and the upper shell surface 1122 is 90°, the angle between the left shell surface 1120 and the inclined shell surface 1121 is 135°, and the angle between the inclined shell surface 1121 and the upper shell surface 1122 is 90°. The angle is 135°;

A latch door 1116 is provided on the front chassis shell 111, and the sample compartment 2 can be freely taken and placed after the latch door 1116 is pulled out;

The inner side of the upper shell surface 1122 is equipped with a first LED lamp base 1123, a second LED lamp base 1124, and a third LED lamp base 1125, and a first full-spectrum white LED lamp 1126 is installed in the first LED lamp base 1123. The second full-spectrum white LED lamp 1127 is installed in the lamp base 1124, and the third full-spectrum white LED lamp 1128 is installed in the third LED lamp base 1125; intersecting line without interfering with the fifth LED lamp base 1146 and the fifth full-spectrum white LED lamp 1148; the third LED lamp base 1125 is installed directly above the second sample holder 214; the second LED lamp base 1124 is installed on the second The midpoint of the line connecting the first LED lamp base 1123 and the third LED lamp base 1125 .

The inside of the right chassis shell 114 is equipped with a fourth LED lamp base 1145 and a fifth LED lamp base 1146, a fourth full-spectrum white LED lamp 1147 is installed in the fourth LED lamp base 1145, and a fifth LED lamp base 1146 is installed in the fifth LED lamp base 1146. Full-spectrum white LED lamp 1148; the fourth LED lamp base 1145 is installed inside the right chassis shell 114, and is coaxial with the first sample clamp 212, the third through hole 219, and the observation hole at the objective end of the first mineral beam splitter 3; Five LED lamp bases 1146 are installed inside the right chassis shell 114, and its position in the vertical direction needs to be higher than the observation hole at the objective lens end of the second mineral beam splitter 4, and must not be in contact with the first LED lamp base 1123, the first full-spectrum white LED Lights 1126 create interference.

The first full-spectrum white LED lamp 1126, the second full-spectrum white LED lamp 1127, the third full-spectrum white LED lamp 1128, the fourth full-spectrum white LED lamp 1147, and the fifth full-spectrum white LED lamp 1148 are all in the same vertical direction. In plane A-A.

The lights emitted by the first full-spectrum white LED lamp 1126, the second full-spectrum white LED lamp 1127, the third full-spectrum white LED lamp 1128, and the fifth full-spectrum white LED lamp 1148 are focused on the second sample holder 214;

The optical path of the fourth full-spectrum white LED lamp 1147 is on the same straight line as the first sample clamp 212, the third through hole 219, and the observation hole at the objective end of the first mineral spectroscope 3;

The first full-spectrum white LED lamp 1126, the second full-spectrum white LED lamp 1127, the third full-spectrum white LED lamp 1128, the fourth full-spectrum white LED lamp 1147, and the fifth full-spectrum white LED lamp 1148 pass through the fourth transmission cable 713 Connected to the drive circuit 712, the drive circuit 712 is connected to the control system 7 through the fifth transmission cable 711;

The center of the left shell surface 1120 and the inclined shell surface 1121 of the upper left chassis shell 112 are respectively opened with a first through hole 118 and a second through hole 119,

The left shell surface 1120 and the inclined shell surface 1121 of the left upper chassis shell 112 are respectively provided with a first beam splitter mounting clip 116 and a second beam splitter mounting clip 117; when installing, the first mineral beam splitter 3 and the second mineral beam splitter 4 The objective lens ends of the first beam splitter mounting clip 116, the second beam splitting mirror mounting clip 117 are inserted into the round holes respectively, and then respectively inserted into the first through hole 118, the second through hole 119, and then tighten the first beam splitter mounting The screws 1161 of the clip 116 and the screws 1171 of the second beam splitter mounting clip 117 are sufficient; the insides of the first through hole 118 and the second through hole 119 are provided with soft rubber sealing bushes for shielding external light.

The first mineral beamsplitter 3 is perpendicular to the left shell surface 1120 of the left upper chassis shell 112, and the second mineral beamsplitter 4 is perpendicular to the inclined shell surface 1121 of the left upper chassis shell 112, that is, the first mineral beamsplitter 3 and the second mineral beamsplitter 4 The angle between them is 45°;

As shown in Figure 7, the sample chamber 2 is U-shaped, and the bottom of the sample chamber 2 is provided with a T-shaped groove, and the lower chassis shell 115 is provided with a T-shaped guide rail 1151, and the T-shaped groove can cooperate with the T-shaped guide rail 1151; The bottom surface of the U-shaped space is inlaid with a first support rod 211, and a first sample holder 212 is installed on the first support rod 211. The first sample holder 212 is used to hold the mineral sample observed by the transmission method; A second support rod 213 is inlaid on the outer top surface of the U-shaped space, and a second sample holder 214 is installed on the second support rod 213. The second sample holder 214 is used to clamp the mineral sample observed by reflection method; the left end of the sample chamber 2 is opened There is a rectangular gap 215, and the upper and lower sides of the rectangular gap 215 are respectively provided with an upper rectangular groove 216 and a lower rectangular groove 217, and the upper rectangular groove 216 and the lower rectangular groove 217 are used to place the light-shielding sheet 218;

The light-shielding sheet 218 is a cuboid sheet with a third through hole 219 on it; the light-shielding sheet is inserted into the upper rectangular groove 216 and the lower rectangular groove 217 during use, and the light-shielding sheet 218 can completely block the rectangular gap 215, only the third The through hole 219 can allow light to pass through; after the shading sheet 218 is installed and positioned, the third through hole 219 is coaxial with the observation hole at the objective end of the first mineral spectroscope 3, the mineral sample to be measured, and the fourth full-spectrum white LED lamp 1147;

The control system 7 sends an LED light driving signal, which is transmitted to the driving circuit 712 through the fifth transmission cable 711, and the driving circuit 712 directly drives the first full-spectrum white LED light 1126, the second full-spectrum white LED light 1127, The third full-spectrum white LED lamp 1128, the fourth full-spectrum white LED lamp 1147, and the fifth full-spectrum white LED lamp 1148 complete the control of lighting and extinguishing of the LED lamps;

The control system 7 can select two working modes; when the transmission observation working mode is selected, the control system 7 controls to light the fourth full-spectrum white LED lamp 1147, and the first camera 5 works; the fourth full-spectrum white LED lamp 1147 The optical path passes through the third through hole 219 on the first sample holder 212, the mineral sample to be measured, and the light-shielding sheet 218 and injects into the observation hole at the objective lens end of the first mineral spectroscope 3; The observation picture collected by the eyepiece end will be continuously displayed on the upper part of the observation interface window of the control system 7 while being saved in the file;

When the reflective observation mode is selected, the control system 7 controls to turn on the first full-spectrum white LED lamp 1126, the second full-spectrum white LED lamp 1127, the third full-spectrum white LED lamp 1128, and the fifth full-spectrum white LED lamp 1148, The second camera 5 is working; the light paths of the first full-spectrum white LED lamp 1126, the second full-spectrum white LED lamp 1127, the third full-spectrum white LED lamp 1128, and the fifth full-spectrum white LED lamp 1148 converge at the second sample holder 214 , after being reflected by the surface of the mineral sample to be measured, inject into the second mineral spectroscope 4 objective lens end observation hole; Continuously displayed in the lower part of the observation interface window of the control system 7;

The two working modes of the control system 7 cannot be operated at the same time. When switching between the two working modes, the observation picture obtained in the former working mode will be continuously displayed in the observation interface window of the control system while being saved in the file above. In this way, the observation results of the two working modes of transmission and reflection can be obtained on the observation interface window, so as to facilitate the comparative study of the transmission and reflection detection results of the same sample.

Claims (9)

1., for the automatic observation device that mineral spectra detects, comprising: cabinet, sample bin, the first mineral spectroscope, the second mineral spectroscope, the first camera, second camera, control system; It is characterized in that: be provided with LED light source in cabinet, sample bin is located at the bottom in cabinet; First mineral spectroscope objective end is inserted in cabinet, and eyepiece end is connected with the first camera; The spectroscopical objective end of second mineral is inserted in cabinet, and eyepiece end is connected with second camera; First camera is connected with data card by the first transmission cable; Second camera is connected with data card by the second transmission cable; Data card is connected with control system by the 3rd transmission cable; LED light source in cabinet is connected with driving circuit by the 4th transmission cable, and driving circuit is connected with control system by the 5th transmission cable; Sample bin takes the shape of the letter U, and is provided with T-slot bottom sample bin, and lower case shell is provided with T-shaped guide rail, and T-slot can coordinate with T-shaped guide rail; The U-shaped space inner bottom surface of sample bin is inlaid with the first support bar, first support bar is provided with the first specimen holder, outside the U-shaped space of sample bin, end face is inlaid with the second support bar, second support bar is provided with the second specimen holder, sample bin left end has rectangle gap, the upper and lower both sides of rectangle gap are respectively equipped with rectangular channel, lower rectangular channel, and upper rectangular channel, lower rectangular channel are for placing anti-dazzling screen; Anti-dazzling screen is rectangular sheet, and it has third through-hole; Inserted in upper rectangular channel, lower rectangular channel by anti-dazzling screen during use, rectangle gap can all be blocked by anti-dazzling screen, only has third through-hole to allow light therethrough; After location installed by anti-dazzling screen, third through-hole and the first mineral spectroscope objective end observation port, mineral samplers to be measured, the 4th full spectrum white-light LED lamp are coaxial; Control system sends LED drive singal, driving circuit is transferred to through the 5th transmission cable, driving circuit, by the 4th transmission cable Direct driver first full spectrum white-light LED lamp, the second full spectrum white-light LED lamp, the 3rd full spectrum white-light LED lamp, the 4th full spectrum white-light LED lamp, the 5th full spectrum white-light LED lamp, completes the control of to light LED and extinguishing.

2. the automatic observation device detected for mineral spectra according to claim 1, it is characterized in that: the first camera, the first mineral spectroscope connecting place are provided with the first enclosed hood, second camera, the second mineral spectroscope connecting place are provided with the second enclosed hood.

3. the automatic observation device detected for mineral spectra according to claim 2, it is characterized in that: cabinet is made up of front chassis shell, upper left chassis shell, rear chassis shell, right chassis shell, lower case shell, be fixedly connected with between the front chassis shell of chassis shell, upper left chassis shell, rear chassis shell, right chassis shell, lower case shell, form airtight space.

4. the automatic observation device detected for mineral spectra according to claim 3, is characterized in that: front chassis shell, rear chassis shell, right chassis shell, lower case shell are formed by single plane; Upper left chassis shell is made up of left shell face, tiltedly shell face, epivalve three planes, and the angle between left shell face and lower case shell, epivalve is all in 90 °, and between left shell face and oblique shell face, angle is 135 °, and the angle between oblique shell face and epivalve is 135 °; Front chassis shell is provided with latch door.

5. the automatic observation device detected for mineral spectra according to claim 4, it is characterized in that: the first LED base, the second LED base, the 3rd LED base are equipped with in the inner side of epivalve, first full spectrum white-light LED lamp is installed in the first LED base, second full spectrum white-light LED lamp is installed in the second LED base, the 3rd full spectrum white-light LED lamp is installed in the 3rd LED base; The intersection of first LED base next-door neighbour's upper left chassis shell and right chassis shell, and do not formed interfere with the 5th LED base, the 5th full spectrum white-light LED lamp; 3rd LED floor installation is directly over the second specimen holder; Second LED floor installation is in the mid point of the first LED base and the 3rd LED base line.

6. the automatic observation device detected for mineral spectra according to claim 5, it is characterized in that: the 4th LED base, the 5th LED base are housed inside right chassis shell, 4th full spectrum white-light LED lamp is installed in the 4th LED base, the 5th full spectrum white-light LED lamp is installed in the 5th LED base; 4th LED floor installation is inside right chassis shell, and coaxial with the first specimen holder, third through-hole, the first mineral spectroscope objective end observation port; 5th LED floor installation is inside right chassis shell, and its position in vertical direction higher than the second mineral spectroscope objective end observation port, and need must not be formed and interfere with the first LED base, the first full spectrum white-light LED lamp.

7. the automatic observation device detected for mineral spectra according to claim 6, it is characterized in that: the first full spectrum white-light LED lamp, the second full spectrum white-light LED lamp, the 3rd full spectrum white-light LED lamp, the 4th full spectrum white-light LED lamp, the 5th full spectrum white-light LED lamp, be all in same vertical plane.

8. the automatic observation device detected for mineral spectra according to claim 7, is characterized in that: the light focusing emitted of the first full spectrum white-light LED lamp, the second full spectrum white-light LED lamp, the 3rd full spectrum white-light LED lamp, the 5th full spectrum white-light LED lamp is in the second specimen holder place; 4th full spectrum white-light LED lamp and the first specimen holder, third through-hole, the spectroscopical objective end observation port of the first mineral are on same straight line; First full spectrum white-light LED lamp, the second full spectrum white-light LED lamp, the 3rd full spectrum white-light LED lamp, the 4th full spectrum white-light LED lamp, the 5th full spectrum white-light LED lamp are connected with driving circuit by the 4th transmission cable, and driving circuit is connected with control system by the 5th transmission cable; The left shell face of upper left chassis shell, the tiltedly center in shell face have the first through hole, the second through hole; The first spectroscope mounting clamp, the second spectroscope mounting clamp is respectively equipped with outside the left shell face of upper left chassis shell, tiltedly shell face; During installation, the first mineral spectroscope, the spectroscopical objective end of the second mineral are inserted in the circular hole of the first spectroscope mounting clamp, the second spectroscope mounting clamp first respectively, insert respectively again within the first through hole, the second through hole, then tighten the screw of the screw of the first spectroscope mounting clamp, the second spectroscope mounting clamp; Inside first through hole and the second through hole, soft rubber sealing bush is housed.

9. the automatic observation device detected for mineral spectra according to claim 8, it is characterized in that: the first mineral spectroscope is vertical with the left shell face of upper left chassis shell, second mineral spectroscope is vertical with the oblique shell face of upper left chassis shell, and the angle namely between the first mineral spectroscope and the second mineral spectroscope is 45 °.