A detection device based on LIBS and Raman combined spectrum

Abstract

This invention provides a detection device based on LIBS and Raman combined spectroscopy, relating to the field of laser spectroscopy detection technology. This invention integrates LIBS and Raman spectroscopy detection within the same device, using a single laser to generate continuous and pulsed lasers respectively. The sample is irradiated with this laser, and the LIBS and Raman spectral data are detected by a spectrometer to obtain elemental and molecular analysis results, achieving both elemental composition and molecular information analysis of the sample. In other words, the elemental and molecular information analysis of a sample can be achieved using a single detection device, solving the problems of cumbersome processes and low detection efficiency in sample analysis processes such as those involving ores and plastic particles. By developing a portable, integrated device and simplifying the sample analysis process, the detection efficiency of sample analysis is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser spectroscopy detection technology, and in particular to a detection device based on LIBS and La Mans combined spectroscopy. Background Technology

[0002] Currently, customs enforcement at ports of entry often requires the testing of sample composition. For example, handheld LIBS equipment is used to analyze the elemental composition and content of samples. Another example is the use of handheld Raman spectroscopy equipment to analyze the molecular composition and content of samples.

[0003] However, in practical applications, it is often necessary to analyze not only the elemental types and contents of a sample, but also its main molecular composition and contents. For example, imported mineral products require both quality analysis and phase analysis. When there are many samples to be tested, using handheld LIBS and Raman spectroscopy equipment to detect the samples separately is a cumbersome process with low detection efficiency. Utility Model Content

[0004] This invention provides a detection device based on LIBS and Raman combined spectroscopy, which can integrate LIBS spectroscopy detection and Raman spectroscopy detection in the same device, solving the problems of cumbersome sample analysis process and low detection efficiency, simplifying the sample analysis process and improving the detection efficiency of sample analysis.

[0005] In a first aspect, this utility model provides a detection device based on LIBS and Raman combined spectroscopy, comprising: a laser, an optical path transmission device, a spectrometer, and a controller installed inside the detection device; a sampling head installed at the front end of the detection device; and a display screen installed at the rear end of the detection device. The laser, optical path transmission device, and sampling head are connected in sequence. The laser generates continuous laser light and pulsed laser light, which are transmitted to the optical path transmission device. The optical path transmission device focuses and reflects the continuous laser light and pulsed laser light before transmitting it to the sampling head. When the detection device is in use, the sampling head is aligned with the sample to be tested, and the continuous laser light and pulsed laser light are irradiated onto the sample. The spectrometer, controller, and display screen are connected in sequence. The spectrometer receives and analyzes the laser light reflected from the sample to obtain LIBS spectral data and Raman spectral data. The controller receives and analyzes the LIBS spectral data and Raman spectral data to obtain elemental analysis results and molecular analysis results. The display screen receives and displays the elemental analysis results and molecular analysis results.

[0006] In one possible implementation, the laser operates in two modes: continuous mode and pulsed mode. The laser is connected to a controller and receives continuous emission signals and pulsed emission signals from the controller. When the laser receives a continuous emission signal, it operates in continuous mode, with a continuous output duration of a set duration and an output power greater than the set power. When the laser receives a pulsed emission signal, it operates in pulsed mode, with a pulse frequency of a set frequency and a pulse energy greater than the set energy value, outputting pulsed laser light.

[0007] In one possible implementation, the duration is set to 1 second, the power is set to 300mW, the frequency is set to any frequency between 0 and 1000Hz, and the energy value is set to 40uJ.

[0008] In one possible implementation, the laser is a high-frequency solid-state microlaser with a maximum emission frequency greater than 1000 Hz and a single laser energy greater than 40 μJ.

[0009] In one possible implementation, the optical path transmission device includes a focusing lens and a collimating lens; a slit is provided on the sampling head; continuous laser and pulsed laser are converged by the focusing lens, reflected by the collimating lens, and then enter the sample to be tested through the slit.

[0010] In one possible implementation, the optical path transmission device includes a first focusing lens, a first collimating lens, a second collimating lens, and a second focusing lens; continuous laser and pulsed laser are converged by the first focusing lens and enter the first collimating lens, reflected by the first collimating lens and enter the second collimating lens, reflected by the second collimating lens and enter the second focusing lens, converged by the second focusing lens, and then enter the surface of the sample to be tested through a slit.

[0011] In one possible implementation, the spectrometer includes a LIBS spectrometer and a Raman spectrometer; when a continuous laser is incident on the surface of the sample, a first laser carrying a Raman reflection spectrum is generated on the sample surface; the Raman spectrometer receives the first laser and analyzes the Raman reflection spectrum to obtain Raman spectral data; when a pulsed laser is incident on the surface of the sample, a second laser carrying a plasma spectrum is generated on the sample surface; the LIBS spectrometer receives the second laser and analyzes the plasma spectrum to obtain LIBS spectral data.

[0012] In one possible implementation, the detection device further includes an optical path return device, which includes a first return branch and a second return branch; the first return branch is located at the front end of the Raman spectrometer and includes a third focusing lens and a third direct mirror; the second return branch is located at the front end of the LIBS spectrometer and includes a fourth focusing lens.

[0013] In one possible implementation, the detection device also includes a handle installed at the lower end of the detection device, with an open button at the upper end of the handle; after the user presses the open button, the controller controls the detection device to perform LIBS spectral detection and Raman spectral detection.

[0014] This invention provides a detection device based on LIBS and Raman combined spectroscopy. By integrating LIBS and Raman spectroscopy detection into a single device using a shared laser, continuous and pulsed lasers are generated respectively. The sample is irradiated with these lasers, and the LIBS and Raman spectral data are detected by a spectrometer to obtain elemental and molecular analysis results. This allows for the analysis of both elemental composition and molecular information of the sample. In other words, the elemental and molecular information analysis of a sample can be achieved using a single detection device, solving the problems of cumbersome procedures and low detection efficiency in sample analysis processes such as those involving ores and plastic particles. By developing a portable, integrated device and simplifying the sample analysis process, the detection efficiency of sample analysis is improved. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a structure based on LIBS and La Mans combined spectroscopy provided in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram illustrating the connection relationship between LIBS and La Mans combined spectroscopy, provided by an embodiment of this utility model.

[0018] Figure 3 This is a schematic flowchart of a detection method based on LIBS and La Mans combined spectroscopy provided in an embodiment of this utility model;

[0019] Figure 4 This is a schematic flowchart of another detection method based on LIBS and La Mans combined spectroscopy provided in this embodiment of the present invention. Detailed Implementation

[0020] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0021] In the description of this utility model, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" and "multiple" refer to two or more. The terms "first," "second," etc., do not limit the quantity or order of execution, and "first," "second," etc., do not necessarily imply differences.

[0022] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0023] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the steps or modules listed, but may optionally include other steps or modules not listed, or may optionally include other steps or modules inherent to such process, method, product, or device.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0025] As described in the background section, there are currently technical problems such as cumbersome sample material analysis processes and low detection efficiency.

[0026] To solve the above technical problems, such as Figure 1 As shown, this embodiment of the invention provides a detection device based on LIBS and La Mans combined spectroscopy. The detection device includes: a laser, an optical path transmission device, a spectrometer, and a controller installed inside the detection device; a sampling head installed at the front end of the detection device; and a display screen installed at the rear end of the detection device.

[0027] In this embodiment, the laser, the optical path transmission device, and the sampling head are connected in sequence. The laser can generate continuous laser and / or pulsed laser, which is transmitted to the optical path transmission device. The optical path transmission device focuses and reflects the continuous laser and pulsed laser and then transmits them to the sampling head. When the detection device is in use, the sampling head is aligned with the sample to be tested, and the continuous laser and pulsed laser are irradiated onto the sample.

[0028] In this embodiment, the spectrometer, controller, and display screen are connected in sequence. The spectrometer receives and analyzes the laser light reflected from the sample to obtain LIBS spectral data and Raman spectral data. The controller receives and analyzes the LIBS spectral data and Raman spectral data to obtain elemental analysis results and molecular analysis results. The display screen receives and displays the elemental analysis results and molecular analysis results.

[0029] In some embodiments, the controller can perform Raman molecular composition analysis and content analysis; LIBS elemental analysis and content analysis, and achieve a comprehensive judgment of the composition and elemental content of molecular target objects through Raman spectroscopy and LIBS elemental spectroscopy analysis.

[0030] This invention provides a detection device based on LIBS and Raman combined spectroscopy. By integrating LIBS and / or Raman spectroscopy detection into a single device using a shared laser, continuous and pulsed lasers are generated to irradiate the sample. The LIBS and Raman spectral data are then detected by a spectrometer to obtain elemental and molecular analysis results, achieving both elemental composition and molecular information analysis of the sample. In other words, the elemental and molecular information analysis of a sample can be performed using a single detection device, solving the problems of cumbersome procedures and low detection efficiency in sample analysis processes such as those involving ores and plastic particles. By developing a portable, integrated device and simplifying the sample analysis process, the detection efficiency of sample analysis is improved.

[0031] Optionally, the laser's operating modes include continuous mode and pulsed mode. The laser is connected to the controller and receives continuous emission signals and pulsed emission signals from the controller. When the laser receives a continuous emission signal, it operates in continuous mode, with a continuous output duration of the set duration and an output power greater than the set power. When the laser receives a pulsed emission signal, it operates in pulsed mode, with a pulse frequency of the set frequency and a pulse energy greater than the set energy value, outputting pulsed laser light.

[0032] For example, in this embodiment of the invention, the duration, power, laser frequency, and laser energy can be set according to the actual scenario. For instance, the duration can be set to 1 second, or the user can adjust it themselves. The power can be set to 300mW. The frequency can be any frequency between 0 and 1000Hz. The energy value can be set to 40uJ, or the user can adjust the energy value themselves.

[0033] It should be noted that the set duration of this utility model embodiment is 1 second and is adjustable, and the set energy value is 40uJ and is adjustable, which can increase the application range of the detection device and increase the types of materials that the detection device can detect.

[0034] For example, the laser is a high-frequency solid-state micro laser with a maximum emission frequency greater than 1000 Hz and a single laser energy greater than 40 μJ.

[0035] For example, the laser could be a high-frequency solid-state microlaser with a wavelength of 1064 nm.

[0036] It should be noted that the laser can be a single-wavelength laser or a dual-wavelength laser. There are two laser selection options: one uses a single-wavelength 1064nm laser; the other uses a dual-wavelength output of 1064nm and 532nm. Pulse energy can be selected as 50mJ, 100mJ, or 200mJ. The melting and plasma formation by the laser are related to the sample type, therefore different energy requirements apply to different samples. For metallic materials, a 50mJ laser is used. For non-metallic materials and materials with high OH⁻ content, a 200mJ laser is more suitable. For liquid samples, a dual-wavelength laser can be used; the oxidizing substances in the sample slow down plasma formation, so a second wavelength of laser is needed to enhance plasma formation.

[0037] For example, the laser required for the Raman spectroscopy effect is a continuous laser with a power consumption of 500mW, a continuous duration of 1s, and an energy of 500mJ.

[0038] The laser required for the LIBS spectral effect is a pulsed laser with a single pulse energy of 40 uJ, a frequency of 1000 Hz, and a pulse duration of 1 s.

[0039] Optional, such as Figure 2 As shown, the optical path transmission device includes a focusing lens and a collimating lens; a slit is provided on the sampling head. Continuous laser and pulsed laser, after being converged by the focusing lens and reflected by the collimating lens, are projected into the sample to be tested through the slit.

[0040] Optionally, the optical path transmission device includes a first focusing lens, a first collimating lens, a second collimating lens, and a second focusing lens; continuous laser and pulsed laser are converged by the first focusing lens and enter the first collimating lens, reflected by the first collimating lens and enter the second collimating lens, reflected by the second collimating lens and enter the second focusing lens, converged by the second focusing lens, and then enter the surface of the sample to be tested through a slit.

[0041] It should be noted that after the laser is incident on the surface of the sample, it excites the surface of the sample to generate plasma emission spectrum and Raman spectrum. The spectral signals are collected by a LIBS spectrometer and a Raman spectrometer, respectively. The collected spectral signals are processed and analyzed to determine the molecular structure, elemental composition and content of the sample.

[0042] Optionally, the spectrometer includes a LIBS spectrometer and a Raman spectrometer.

[0043] In some embodiments, the Raman spectrometer ranges from 175 to 3200 cm⁻¹. -1 The resolution is 12cm. -1 Raman spectrometers operate using semiconductor cooling.

[0044] The LIBS spectrometer has a range of 170-440 nm and a resolution of 0.28 nm. The LIBS spectrometer operates using a semiconductor temperature-controlled isothermal system.

[0045] For example, when a continuous laser is incident on the surface of the sample to be tested, a first laser carrying a Raman reflection spectrum is generated on the surface of the sample to be tested; the Raman spectrometer receives the first laser, analyzes the Raman reflection spectrum, and obtains Raman spectral data.

[0046] For example, when a pulsed laser is incident on the surface of the sample to be tested, a second laser carrying a plasma spectrum is generated on the surface of the sample to be tested; the LIBS spectrometer receives the second laser, analyzes the plasma spectrum, and obtains LIBS spectral data.

[0047] Optionally, the detection device may also include an optical path return device, which includes a first return branch and a second return branch.

[0048] The first return path is located at the front end of the Raman spectrometer and includes a third focusing lens and a third direct mirror.

[0049] The second return path is located at the front end of the LIBS spectrometer and includes the fourth focusing lens.

[0050] Optionally, the detection device also includes a handle installed at the lower end of the detection device, with an open button at the upper end of the handle; after the user presses the open button, the controller controls the detection device to perform LIBS spectral detection and Raman spectral detection.

[0051] Optional, such as Figure 3 As shown, this embodiment of the invention also provides a detection method based on LIBS and La Mans combined spectroscopy, applicable to, for example... Figure 1 The detection device shown includes steps S101-S108 in the detection method.

[0052] S101. The user aligns the sampling head of the detection device with the sample to be tested and presses the start button on the handle.

[0053] In some embodiments, the laser can operate automatically or under the control of a controller.

[0054] For example, such as Figure 4 As shown, when the user presses the start button, the detection device begins detection. The laser automatically switches to continuous mode and adjusts the laser output power to perform Raman spectroscopy detection. After the Raman detection is completed, the laser automatically switches to pulse mode and adjusts the laser pulse frequency and single pulse power.

[0055] In another example, when the user presses the power button, the controller generates a continuous laser signal and sends it to the laser. Upon receiving the continuous laser signal, the laser switches its operating mode to continuous mode and adjusts the laser output power to perform Raman spectroscopy detection. After the Raman detection is complete, the controller generates a pulsed laser signal and sends it to the laser. Upon receiving the pulsed laser signal, the laser switches its operating mode to pulsed mode and adjusts the laser pulse frequency and single pulse power.

[0056] S102. After the controller detects the start signal returned by the start button, it generates a continuous emission signal and controls the laser to generate continuous laser.

[0057] For example, the laser can be switched to continuous mode under the control of the laser to generate continuous laser.

[0058] Another example, such as Figure 4 As shown, the laser can also automatically switch to continuous mode and adjust the laser output power.

[0059] S103. The Raman spectrometer receives the first laser reflected from the sample to be tested, analyzes the Raman reflection spectrum carried by the first laser, and obtains Raman spectral data.

[0060] For example, such as Figure 4 As shown, after the laser switches to continuous mode, the optical path return device can switch to the first return branch, i.e., the Raman path. Data is then acquired by the Raman spectrometer to obtain Raman spectral data.

[0061] S104 The controller generates a pulse emission signal to control the laser to generate pulsed laser.

[0062] For example, the laser can be switched to pulse mode under the control of the laser to generate pulsed laser.

[0063] Another example, such as Figure 4 As shown, the laser can also switch to pulse mode on its own, while adjusting the laser pulse frequency and single pulse power.

[0064] The S105 LIBS spectrometer receives the second laser reflected from the sample under test, analyzes the plasma spectrum carried by the second laser, and obtains LIBS spectral data.

[0065] For example, such as Figure 4 As shown, after the laser switches to pulse mode, the optical path return device can switch to the second return branch, i.e., the LIBS path. Data is then acquired by the LIBS spectrometer to obtain LIBS spectral data.

[0066] S106 The controller obtains the molecular analysis results of the sample to be tested based on Raman spectroscopy data analysis.

[0067] In some embodiments, the analysis results include the molecular types and the content of each molecule.

[0068] For example, the controller may have a pre-stored Raman database. The Raman database is a database that maps molecular analysis results to Raman spectral data. The controller can query the Raman database based on the Raman spectral data to obtain the molecular analysis results.

[0069] S107 The controller obtains the elemental analysis results of the sample to be tested based on LIBS spectral data analysis.

[0070] In some embodiments, the elemental analysis results include the type of each element and the content of each element.

[0071] For example, the controller may have a pre-stored LIBS database. The LIBS database is a mapping database between elemental analysis results and LIBS spectral data. The controller can query the LIBS database based on the LIBS spectral data to obtain the elemental analysis results.

[0072] S108, The display screen shows the molecular analysis results and elemental analysis results.

[0073] Thus, this embodiment of the invention can use a detection device to perform LIBS spectroscopy and Raman spectroscopy on the sample to be tested, thereby obtaining molecular analysis results and elemental analysis results, simplifying the sample material analysis process and improving the detection efficiency of sample material analysis.

[0074] Optionally, this embodiment of the invention also provides a detection method based on LIBS and La Mans combined spectroscopy, applicable to, for example... Figure 1 The detection device shown includes steps S201-S208 in the detection method.

[0075] S201. Obtain the detection request input by the user.

[0076] In some embodiments, a detection request is used to characterize the type of detection requested.

[0077] The detection types include Raman spectroscopy and LIBS spectroscopy.

[0078] It should be noted that the sample to be tested may require only one type of spectral detection, namely Raman spectroscopy or LIBS spectroscopy. The detection device can select the detection type based on the user's input and perform the corresponding spectral detection.

[0079] S202. Based on the detection request input by the user, the detection type is identified.

[0080] For example, a detection request may include a detection type identifier. Accordingly, embodiments of the present invention can determine the detection type based on the detection type identifier.

[0081] S203. According to the detection type of the detection request, adjust the laser frequency band of the laser to the frequency band corresponding to the detection type.

[0082] For example, if the detection type is Raman spectroscopy detection, the laser frequency band of the laser is adjusted to the laser frequency band corresponding to the continuous laser, and the duration and power consumption of the laser output continuous laser are controlled.

[0083] Another example is that if the detection type is LIBS spectral detection, the laser frequency band of the laser is adjusted to the laser frequency band corresponding to the pulsed laser, and the duration and power consumption of the laser output pulsed laser are controlled.

[0084] S204. Control the laser to emit a pulsed beam of the specified frequency band.

[0085] Thus, this embodiment of the invention can perform single-type spectral detection based on the detection type input by the user, thereby improving the portability of the detection device.

[0086] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A detection device based on LIBS and Raman combined spectroscopy, characterized by, include: The detection device includes a laser, an optical path transmission device, a spectrometer, and a controller installed inside the detection device; a sampling head installed at the front end of the detection device; and a display screen installed at the rear end of the detection device. The laser, optical path transmission device, and sampling head are connected in sequence. The laser generates continuous laser or pulsed laser and transmits it to the optical path transmission device. The optical path transmission device focuses and reflects the continuous laser and pulsed laser and then transmits it to the sampling head. When the detection device is in use, the sampling head is aligned with the sample to be tested, and the continuous laser and pulsed laser are irradiated onto the sample to be tested. The spectrometer, the controller, and the display screen are connected in sequence. The spectrometer receives and analyzes the laser light reflected from the sample to obtain LIBS spectral data and Raman spectral data. The controller receives and analyzes the LIBS spectral data and Raman spectral data to obtain elemental analysis results and molecular analysis results. The display screen receives and displays the elemental analysis results and molecular analysis results.

2. The LIBS and Raman combined use spectroscopy-based detection apparatus according to claim 1, characterized by, The laser operates in two modes: continuous mode and pulsed mode. The laser is connected to the controller and receives continuous emission signals and pulse emission signals sent by the controller. When the laser receives a continuous emission signal, it operates in continuous mode, with a continuous output duration of a set duration and an output power greater than the set power. When the laser receives a pulse emission signal, it operates in pulse mode, with a pulse frequency of a set frequency and a pulse energy greater than the set energy value, and outputs pulsed laser.

3. The LIBS and Raman combined use spectroscopy-based detection apparatus according to claim 2, characterized by The set duration is 1 second, the set power is 300mW, the set frequency is any frequency between 0 and 1000Hz, and the set energy value is 40uJ.

4. The LIBS and Raman combined use spectroscopy-based detection apparatus according to claim 3, characterized by The laser is a high-frequency solid-state micro laser with a maximum emission frequency greater than 1000 Hz and a single laser energy greater than 40 μJ.

5. The LIBS and Raman combined based detection apparatus according to claim 1, wherein, The optical path transmission device includes a focusing lens and a collimating lens; the sampling head is provided with a slit. The continuous laser and pulsed laser are converged by the focusing lens, reflected by the collimating mirror, and then enter the sample to be tested through the slit.

6. The LIBS and Raman combined use spectroscopy-based detection apparatus according to claim 5, characterized by The optical path transmission device includes a first focusing lens, a first collimating lens, a second collimating lens, and a second focusing lens; The continuous laser and pulsed laser are converged by the first focusing lens and then enter the first collimating lens. After being reflected by the first collimating lens, they enter the second collimating lens, are reflected by the second collimating lens, and then enter the second focusing lens. After being converged by the second focusing lens, they pass through the slit and enter the surface of the sample to be tested.

7. The LIBS and Raman combined use spectroscopy-based detection apparatus according to claim 1, characterized by The spectrometers include a LIBS spectrometer and a Raman spectrometer; When a continuous laser beam is incident on the surface of the sample to be tested, a first laser beam carrying a Raman reflection spectrum is generated on the surface of the sample to be tested; the Raman spectrometer receives the first laser beam, analyzes the Raman reflection spectrum, and obtains Raman spectral data; When a pulsed laser is incident on the surface of the sample to be tested, a second laser carrying a plasma spectrum is generated on the surface of the sample to be tested; the LIBS spectrometer receives the second laser, analyzes the plasma spectrum, and obtains LIBS spectral data.

8. The LIBS and Raman combined use spectroscopy-based detection apparatus according to claim 1, characterized by, The detection device also includes an optical path return device, which includes a first return branch and a second return branch. The first return path is located at the front end of the Raman spectrometer and includes a third focusing lens and a third direct mirror; The second return path is located at the front end of the LIBS spectrometer and includes a fourth focusing lens.

9. The LIBS and Raman combined use spectroscopy-based detection apparatus according to claim 1, characterized by, The detection device also includes a handle installed at the lower end of the detection device, and an open button is provided at the upper end of the handle; After the user presses the start button, the controller controls the detection device to perform LIBS spectral detection and Raman spectral detection.

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