A geological sample chemical and microstructure multi-modal spectral analysis system

Abstract

The utility model discloses a geological sample chemical and microstructure multimodal spectrum analysis system, including the laser light source for providing the carrier required for raman spectrum analysis and LIBS analysis, the sample cell for depositing the sample to be detected and the spectrum analysis equipment for receiving the spectrum excited by carrier and carrying out sample analysis, the laser light source includes the first laser for emitting the carrier required for raman spectrum analysis and the second laser for emitting the carrier required for LIBS analysis, and the first transmission mirror group and the second transmission mirror group for conveying corresponding carrier to the sample to be detected are correspondingly arranged at the emission end of the first laser and the second laser, the utility model spectrum analysis system can realize the comprehensive analysis of the chemical composition and microstructure of geological sample quickly, and provides technical support for the application in the field such as mineral exploration, environmental monitoring etc.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of spectrum analysis technique, concretely relates to a geological sample chemical and microstructure multimodal spectrum analysis system. BACKGROUND

[0002] Geological sample analysis is a key link to understand the characteristics of earth materials, resource distribution and environmental conditions, and is usually comprehensively analyzed from two main angles of chemical composition and structure. Chemical composition analysis can provide information of elements and their contents in the sample, helping scientists to identify mineral composition and its potential economic value. For example, the composition analysis of metal deposits is directly related to its mining value and processing technology. On the other hand, structural analysis focuses on the micro characteristics of the sample, such as crystal morphology, particle size and organizational structure, which affect the physical and chemical properties of minerals, and further affect their behavior in geological processes and applications.

[0003] However, the current methods for geological sample analysis are limited, such as chemical analysis, X-ray diffraction (XRD) and scanning electron microscope (SEM). Chemical analysis can provide quantitative and qualitative composition of the sample, but usually requires sample pretreatment, takes a long time, and sometimes uses harmful chemical reagents. XRD method and SEM method can effectively identify the mineral composition of the sample, but require high sample structure and may cause sample structure damage. SUMMARY

[0004] Technical purpose: in view of the deficiencies existing in the present geological sample analysis, the utility model discloses a geological sample chemical and microstructure multimodal spectrum analysis system.

[0005] Technical scheme: in order to realize the above technical purpose, the utility model adopts the following technical scheme:

[0006] A geological sample chemical and microstructure multimodal spectrum analysis system, comprising a laser light source for providing the carrier required for Raman spectrum analysis and LIBS analysis, a sample pool for storing the sample to be detected, and a spectrum analysis device for receiving the spectrum excited by the carrier for sample analysis; the laser light source comprises a first laser for emitting the carrier required for Raman spectrum analysis and a second laser for emitting the carrier required for LIBS analysis, and a first transmission mirror group and a second transmission mirror group are correspondingly arranged at the emission end of the first laser and the second laser for conveying the corresponding carrier to the sample to be detected.

[0007] Preferably, the sample pool of the utility model is rotationally connected with the corresponding placement position through a rotating shaft, and a receiving port for the carrier to enter is correspondingly arranged on one side of the sample pool, and the carrier emitted by the first laser and the second laser enters the sample through the corresponding receiving port.

[0008] Preferably, the utility model on the sample cell above sets up sample press device, through sample press device presses sample makes sample be in the light path of first laser and second laser.

[0009] Preferably, the utility model's first transmission mirror group includes the first filter, first three prism reflector and first triangular prism that are sequentially arranged along the laser light path direction;Second transmission mirror group includes the second filter, second three prism reflector and lens for converging light beam along the laser light path direction.

[0010] Preferably, the utility model's first filter, first three prism reflector, second filter, second three prism reflector and lens are all correspondingly arranged on the movable base, and the position is adjusted through the movable base.

[0011] Preferably, the utility model's first laser and second laser are correspondingly connected with the modulator for controlling the laser output laser, and the display screen for showing the laser adjustment state and the emergency brake button for stopping the laser operation are arranged on the modulator.

[0012] Preferably, the utility model's spectral analysis system is also provided with the deep learning analysis and data processing device for the depth learning and analysis of the spectrum received by the spectral analysis equipment, the deep learning analysis and data processing device includes the deep learning machine carrying DNN and CNN deep learning model, the deep learning machine analyzes the received spectrum signal and shows the analysis result through the display screen.

[0013] Beneficial effect: the geological sample chemical and microstructure multimodal spectral analysis system provided by the utility model has the following beneficial effects:

[0014] 1, the utility model LIBS is through laser pulse and produces plasma on the surface of geological sample, then analyzes the spectrum of emission, can quickly, non-destructively obtains the chemical composition of geological sample. And Raman spectrum utilizes laser and geological sample molecule interaction, obtains the vibration mode information of molecule, thereby reveals its structure characteristics. The combination of the two technologies can realize the comprehensive analysis of the chemical composition and microstructure of geological sample, improve the accuracy and efficiency of analysis.

[0015] 2, the utility model's sample cell can realize rotation through the shaft, thereby adjusts the direction of sample, can realize LIBS and Raman measurement simultaneously, improves the detection efficiency.

[0016] 3, the utility model sets up sample press device on the sample cell, can make sample adhere to the bottom area of sample cell, and the sample surface is flat and close to the laser path, and corresponds with the corresponding laser irradiation position, thereby can maximize the contact area of laser and sample, improve the precision and stability of laser analysis.

[0017] 4、The components of the first transmission lens group and the second transmission lens group are arranged on the movable base, the position can be adjusted according to the light path requirement, the accurate transmission of the laser is realized, and the assembly positioning precision requirement is reduced.

[0018] 5、The depth learning analysis and data processing device is arranged, sample detection spectrum analysis and processing can be automatically performed through the loaded depth learning model, high-precision detection can be completed in a short time, the analysis period is reduced, and the demand of large-scale and high-throughput geological sample analysis is met. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below.

[0020] Figure 1 It is a structural schematic view of the spectrum analysis system of the utility model;

[0021] Figure 2 It is a structural schematic view of the depth learning analysis and data processing device of the utility model;

[0022] Among them, 1-sample cell, 2-first laser, 3-second laser, 4-first filter, 5-first three-prism reflector, 6-first triangular prism, 7-second filter, 8-second three-prism reflector, 9-lens, 10-depth learning machine, 11-LIBS spectrometer, 12-Raman spectrometer, 13-optical lens controller, 14-analysis result display screen, 15-operation interface display screen, 16-query display screen, 17-modulator. DETAILED DESCRIPTION

[0023] Now, the embodiments of the present disclosure will be described in detail, and one or more examples thereof are described herein below. Each embodiment and example are provided by explaining the devices, components and materials of the present disclosure, rather than limiting. On the contrary, the following description provides a convenient illustration for implementing the exemplary embodiments of the present disclosure. Actually, those skilled in the art will clearly understand that various modifications and variations can be made in the teaching of the present disclosure without departing from the scope or spirit of the present disclosure.

[0024] As Figure 1As shown, the utility model discloses a geological sample chemical and microstructure multimodal spectral analysis system, including the laser light source for providing the carrier required for raman spectrum analysis and LIBS (laser induced breakdown spectroscopy) analysis, the sample cell 2 for depositing the sample to be detected and the spectral analysis equipment for receiving the spectrum excited by the carrier and carrying out sample analysis, the laser light source includes the first laser 2 for emitting the carrier required for raman spectrum analysis and the second laser 3 for emitting the carrier required for LIBS analysis, and the first transmission mirror group and the second transmission mirror group for conveying the corresponding carrier to the sample to be detected are correspondingly arranged at the emission end of the first laser 2 and the second laser 3.

[0025] The utility model discloses the sample cell 1 is rotatably connected with the corresponding placement position through the pivot, and the receiving port for the carrier entering is correspondingly arranged on one side of the sample cell 1, and the carrier emitted by the first laser 2 and the second laser 3 enters the sample through the corresponding receiving port and irradiates on the sample, and the LIBS and raman spectrum detection are carried out synchronously, and the corresponding spectral analysis equipment uses the LIBS spectrometer and the raman spectrum spectrometer.

[0026] The utility model sets up sample pressing device above sample cell 1, and the sample is pressed by sample pressing device and makes the sample be in the light path of first laser 2 and second laser 3, and the sample pressing device adopts the pressure gas-operated, electric or manual device, such as air cylinder or electric cylinder, etc., and the sample is located at the bottom of sample cell by the drive end down pressure, and the pressing degree of control can guarantee that the sample surface is flat and closely laser path, so that the laser can be accurately focused on the sample surface, the contact area between laser and sample is maximized, and the precision and stability of system analysis are enhanced.

[0027] The utility model first transmission mirror group and first transmission mirror group are used for the transmission of light path, and the component that can change the light path direction such as reflecting mirror can be added according to demand, so that the laser can be accurately irradiated to sample cell 1, and in the embodiment of the utility model, such as Figure 1 As shown, the first transmission mirror group includes the first filter 4, the first three-prism mirror 5 and the first triangular prism 6 arranged in sequence along the laser light path direction, and the second transmission mirror group includes the second filter 7, the second three-prism mirror 8 and the lens 9 for converging the light beam arranged in sequence along the laser light path direction.

[0028] As preferred, the first filter 4, the first three-prism mirror 5, the second filter 7, the second three-prism mirror 8 and the lens 9 are all correspondingly arranged on the movable base, and the position adjustment is realized by sliding the movable base driven by the driving part, so that the position adjustment of the optical elements and the like installed on the base is realized, thereby ensuring the accuracy of the light path transmission after the equipment is assembled.

[0029] The first laser 2 and the second laser 3 of the utility model correspondingly connect the modulator 17 for controlling the laser output laser, the display screen for displaying the laser adjustment state and the emergency brake button for stopping the laser operation are arranged on the modulator 17, the modulator, the laser and the controller and the like of the utility model are all powered by the internally arranged power supply, are electrically connected with the power supply, and can be configured with fans and the like for the heat dissipation of electrical components according to the requirement; for the indoor working scene, the power supply can also be powered by the external power supply.

[0030] After the corresponding laser irradiation to the sample, the spectrum is generated and received by the LIBS spectrometer and the Raman spectrum spectrometer, the spectrum can be transmitted to the computer and the like processing equipment through the external interface on the spectrometer, and the spectrum is analyzed and processed; in order to meet the rapid analysis and processing requirement of a large number of samples, such as Figure 2 As shown, the spectrum analysis system of the utility model further has a deep learning analysis and data processing device for deeply learning and analyzing the spectrum received by the spectrum analysis equipment, the deep learning analysis and data processing device includes the deep learning machine 10 carrying the deep neural network DNN or the convolutional neural network CNN deep learning model, the deep learning machine 10 analyzes the received spectrum signal and displays the analysis result through the display screen, and sets the analysis result display screen 14, the operation interface display screen 15 for human-computer interaction and the data retrieval and management tool display screen 16 for providing data retrieval and management tools and the like according to the requirement. Through the spectrum analysis system of the utility model, the chemical composition and the microstructure of the geological sample can be comprehensively analyzed, the deep learning model is utilized to train the model with a large number of training samples, so as to identify the chemical composition, the mineral type and the microstructure and the like information of different geological samples. According to the extracted features, the mineral classification, the element identification and the element content quantitative analysis task are realized, the manual intervention is reduced, the more comprehensive and rapid multi-level analysis of the complex geological sample is provided, and the technical support is provided for the application in the fields of mineral exploration and environmental monitoring.

Claims

1. A geological sample chemical and microstructure multimodal spectral analysis system, characterized in that, The application relates to a laser spectrum analysis system, which comprises a laser light source for providing a carrier wave required for Raman spectrum analysis and LIBS analysis, a sample pool (1) for storing a sample to be detected, and a spectrum analysis device for receiving a spectrum excited by the carrier wave for sample analysis; the laser light source comprises a first laser (2) for emitting a carrier wave required for Raman spectrum analysis and a second laser (3) for emitting a carrier wave required for LIBS analysis, and a first transmission mirror group and a second transmission mirror group are correspondingly arranged at the emission ends of the first laser (2) and the second laser (3) and used for conveying the corresponding carrier waves to the sample to be detected.

2. The multi-modal spectroscopic system for chemical and microstructural analysis of geological samples of claim 1, wherein, The sample pool (1) is rotationally connected with a corresponding placement position through a rotating shaft, one side of the sample pool (1) is correspondingly provided with a receiving port for the carrier wave, and the carrier waves emitted by the first laser (2) and the second laser (3) enter and irradiate on the sample through the corresponding receiving ports.

3. A system for multi-modal spectroscopic analysis of the chemistry and microstructure of geological samples according to claim 2, wherein, A sample pressing device is arranged above the sample pool (1), and the sample pressing device is used for pressing the sample so that the sample is located in the light path of the first laser (2) and the second laser (3).

4. The multi-modal spectral analysis system for chemical and microstructural analysis of geological samples of claim 1, wherein, The first transmission mirror group comprises a first filter (4), a first triangular prism reflector (5) and a first triangular prism (6) which are sequentially arranged along the laser light path, and the second transmission mirror group comprises a second filter (7), a second triangular prism reflector (8) and a lens (9) for converging a light beam which are sequentially arranged along the laser light path.

5. A system for multi-modal spectroscopic analysis of the chemistry and microstructure of geological samples according to claim 4, wherein, The first filter (4), the first triangular prism reflector (5), the second filter (7), the second triangular prism reflector (8) and the lens (9) are correspondingly arranged on a movable base, and the position is adjusted through the movable base.

6. The multi-modal spectroscopic analysis system for chemical and microstructural analysis of geological samples of claim 1, wherein, The first laser (2) and the second laser (3) are correspondingly connected with a modulator (17) for controlling the output laser of the laser, a display screen for displaying the adjustment state of the laser and an emergency brake button for stopping the operation of the laser are arranged on the modulator (17).

7. The multi-modal spectral analysis system for chemical and microstructural analysis of geological samples of claim 1, wherein, The spectrum analysis system is also provided with a deep learning analysis and data processing device for deep learning and analysis of the spectrum received by the spectrum analysis device, the deep learning analysis and data processing device comprises a deep learning machine (10) loaded with a DNN and a CNN deep learning model, the deep learning machine (10) analyzes the received spectrum signal and displays the analysis result through the display screen.

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