Spectral phase analysis device and method for performing phase analysis by using spectrum

Abstract

The invention relates to a spectral phase analysis device and a method for carrying out phase analysis by using a spectrum, and relates to the technical field of spectral analysis equipment. The main light source and the auxiliary light source are arranged in the gas storage tank; the dichroscope is arranged in the gas storage tank, light beams emitted by the main light source and the auxiliary light source irradiate the two opposite sides of the dichroscope respectively, the dichroscope is used for reflecting the light beams emitted by the main light source, and the light beams emitted by the auxiliary light source penetrate through the dichroscope. Light beams emitted by the main light source and light beams emitted by the auxiliary light source coincide after passing through the dichroscope; the reflectors are used for reflecting light beams emitted by the main light source and the auxiliary light sources; the receiver is arranged on the gas storage tank and is used for receiving light beams emitted by the main light source and the auxiliary light source; and the data acquisition unit is electrically connected with the receiver. According to the invention, the detection accuracy in the gas sample can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of spectral analysis equipment, and in particular to a spectral phase analysis device and a method for performing phase analysis using spectroscopy. Background Art

[0002] A spectrometer is an instrument used to measure spectral signals. It determines the composition and properties of a sample by analyzing the absorption, reflection or scattering of light emitted by a light source after passing through the sample. A spectrometer generally includes a gas phase chamber, a light source and a receiver, as well as a matching analysis system. The light emitted by the light source passes through the physical phase atmosphere in the gas phase chamber, and after the corresponding absorption and excitation peaks occur, it is received by the receiver and compared with the preset physical phase characteristic table by the analysis system to obtain the specific composition of the physical phase to be tested. Spectrometers can detect samples efficiently and accurately, and are therefore widely used in environmental monitoring, industrial process control, pharmaceutical research and development and other fields.

[0003] In spectral analysis, different gases and elemental components have different requirements for absorption and excitation. When detecting gas components, a specific optical path is required to ensure the sensitivity and accuracy of the detection. The difference in optical path directly affects the sensitivity and accuracy of the detection. Therefore, in spectral analysis, it is particularly important to adjust the optical path according to the characteristics and concentrations of different gas and elemental components. However, most existing spectrometers are designed with fixed optical path and light path, which leads to inadequate determination of different gas and elemental components in complex phase analysis. Especially when multiple gases are mixed, a single optical path spectrometer is difficult to detect the components of the mixed gas. Summary of the invention

[0004] The present application provides a spectral phase analysis device and a method for phase analysis using spectroscopy, the purpose of which is to increase the diversity of optical paths within the spectral phase analysis device, thereby being able to detect gas samples in dual or even multi-optical paths, thereby improving the detection accuracy of gas samples.

[0005] In the first aspect, the present application provides a spectral phase analysis device using the following technical solution: A spectral phase analysis device comprises a gas storage box for accommodating a gas sample; a main light source and a secondary light source, the main light source and the secondary light source are arranged in the gas storage box, and the main light source and the secondary light source are used to emit light beams; a dichroic mirror, the dichroic mirror is arranged in the gas storage box, and the light beams emitted by the main light source and the secondary light source are respectively irradiated on opposite sides of the dichroic mirror, the dichroic mirror is used to reflect the light beam emitted by the main light source, the light beam emitted by the secondary light source penetrates the dichroic mirror, and the optical axes of the light beam emitted by the main light source and the light beam emitted by the secondary light source coincide after passing through the dichroic mirror; a plurality of reflectors, the plurality of reflectors are arranged in the gas storage box, and the plurality of reflectors are used to reflect the light beams emitted by the main light source and the secondary light source; a receiver, the receiver is arranged on the gas storage box, and the receiver is used to receive the light beams emitted by the main light source and the secondary light source; a data acquisition unit, the data acquisition unit is electrically connected to the receiver, and the data acquisition unit is used to acquire spectral data obtained by the receiver and analyze the spectral data.

[0006] By adopting the above technical solution, firstly, the gas storage chamber is used to store sample gas, and the gas storage chamber is provided with a main light source, an auxiliary light source, a receiver and a plurality of reflectors. The arrangement of the plurality of reflectors enables the light beams emitted by the main light source and the auxiliary light source to be received by the receiver after several reflections. At this time, the receiver can obtain the spectral data of the sample gas in the gas storage chamber, and the receiver will transmit the spectral data to the data acquisition unit, and the data acquisition unit will analyze and compare the collected spectral data, which can determine the components and concentration of the sample gas. Secondly, due to the coordinated arrangement of the main light source, the auxiliary light source and the dichroic mirror, the optical axes of the main light source and the auxiliary light source can overlap, so that the receiver can receive light beams of two different optical paths, and thus the receiver can obtain the spectral data of the gas sample under two different optical paths, which can increase the detection accuracy and sensitivity of different components in the gas sample.

[0007] Therefore, the spectral phase analysis device of the present application can perform dual-optical path gas sample detection, and can detect gas samples under two different optical path lengths, which can improve the accuracy and sensitivity of detection.

[0008] Optionally, a beam adjustment mechanism is arranged between the main light source, the auxiliary light source and the receiver and the corresponding inner walls of the air storage box, and the beam adjustment mechanism includes an angle adjustment member and a vertical driving member, the angle adjustment member is used to drive the corresponding main light source or auxiliary light source or receiver to rotate, and the vertical driving member is used to adjust the corresponding main light source or auxiliary light source or receiver to move in a straight line direction.

[0009] By adopting the above technical solution, the beam adjustment mechanism facilitates the adjustment of the inclination angle of the main light source or the auxiliary light source or the receiver through the setting of the angle adjustment member, thereby being able to change the adjustment of the inclination angle of the light beam emitted by the main light source and the auxiliary light source, and also being able to change the inclination angle of the receiver to ensure that the receiver can receive the light beam. The beam adjustment mechanism can adjust the position of the main light source, the auxiliary light source and the receiver through the setting of the vertical adjustment member. The present application introduces a beam adjustment mechanism, which enhances the device's ability to adjust the direction and position of the light beam, and improves the flexibility and accuracy of spectral analysis.

[0010] Optionally, the air storage box includes a first box body and a second box body, the opening of the first box body is arranged opposite to the opening of the second box body, and the first box body is connected to the second box body, and an air storage chamber is formed between the first box body and the second box body; so an adjustment drive member is arranged between the first box body and the second box body for driving the first box body and the second box body to move toward or away from each other, and when the first box body and the second box body move toward or away from each other, the air storage chamber is closed; and a plurality of the light beam adjustment mechanisms are respectively arranged on the inner side wall of the first box body facing the second box body and on the inner side wall of the second box body facing the first box body.

[0011] By adopting the above technical solution, by setting the structure of the gas storage box, by adjusting the driving member to drive the first box body and the second box body to move, the length of the gas storage box can be changed, and then the length between the two inner side walls of the gas storage box can be changed, so that the optical path can be adjusted. Such a setting increases the diversity of the optical path that can be adjusted by the spectral phase analysis device of the present application, and can also achieve linear adjustment of the optical path. This design provides data under different optical path conditions for the spectral analysis of gas samples, and improves the accuracy of spectral analysis.

[0012] Optionally, the first box body is plug-fitted with the second box body, and the first box body is slidably connected to the inner wall of the second box body.

[0013] By adopting the above technical solution, the first box body and the second box body are plugged and slidably connected, and the air storage chamber between the first box body and the second box body can be always in a closed state while ensuring that the distance between the first box body and the second box body is adjustable. This can meet the requirements of the air storage box.

[0014] Optionally, a telescopic tube is provided between the first box body and the second box body, and both ends of the telescopic tube are respectively connected to the first box body and the second box body, and one end of the telescopic tube is connected to the opening of the first box body, and the other end is connected to the opening of the second box body.

[0015] By adopting the above technical solution, a telescopic tube is arranged between the first box body and the second box body, and the arrangement of the telescopic tube determines that the distance between the first box body and the second box body is adjustable, and at the same time ensures that the air storage chamber between the first box body and the second box body can always be in a closed state. This can meet the requirements of the air storage box.

[0016] Optionally, a plurality of module sockets are provided on the two opposite side walls of the gas storage box, the module sockets penetrate the corresponding side walls of the gas storage box, and the plurality of module sockets are arranged in sequence and at intervals along the driving direction of the vertical driving member; a plurality of mounting modules are provided on the gas storage box, the mounting modules are arranged in one-to-one correspondence with the module sockets, the mounting modules are plugged into and matched with the corresponding module sockets, and the mounting modules close the corresponding module sockets; there are a plurality of mounting modules that are arranged in one-to-one correspondence with the main light source, the auxiliary light source, the receiver and a plurality of reflectors, the main light source, the auxiliary light source, the receiver and a plurality of reflectors are all arranged on the corresponding mounting modules, and the dichroic mirror and the auxiliary light source are arranged on the same mounting module; the beam adjustment mechanism is arranged between the main light source, the auxiliary light source and the receiver and the corresponding mounting modules.

[0017] By adopting the above technical solution, through the setting of the installation module and the module socket, the installation modules can be freely installed on the opposite sides of the gas storage box. Since the main light source, the auxiliary light source, the dichroic mirror, the receiver and several reflectors are all installed on the corresponding installation modules, the installation modules can be disassembled and assembled, which is convenient for the replacement and maintenance of various components. Since the installation module is easy to disassemble and assemble, it is convenient to replace the positions of the main light source, the auxiliary light source, the receiver and the reflector, which can achieve the adjustment of the optical path; it is also possible to replace the installation module with the reflector and the module without the reflector, which is convenient for freely changing the number of reflectors in the gas storage box, and then the number of reflections of the light beam in the gas storage box can be changed, so as to achieve the adjustment of the optical path. Such a setting can increase the adjustable range of the optical path in the spectral phase analysis device, and then the spectral data of the gas sample under more optical paths can be obtained, and the detection accuracy and sensitivity of different components in the gas sample can be improved.

[0018] Optionally, a mounting seat is provided on the mounting module, and the light beam adjustment mechanism is provided between the mounting seat and the corresponding mounting module; the main light source, the auxiliary light source, the receiver and the plurality of reflectors are all detachably connected to the corresponding mounting seat.

[0019] By adopting the above technical solution, the installation of the mounting seat facilitates the connection between the mounting module and the corresponding main light source or auxiliary light source or receiver or reflector, and at the same time makes the mounting module universal. In addition, a beam adjustment mechanism is provided between the mounting seat and the corresponding mounting module, so that the inclination angle of the reflector can also be adjusted, which makes it easy to project the light beams emitted by the main light source and the auxiliary light source onto the receiver.

[0020] In a second aspect, the present application provides a method for phase analysis using spectroscopy, which adopts the following technical solution: a method for phase analysis using spectroscopy, using the above-mentioned spectral phase analysis device to perform spectral analysis, comprising the following steps: S1. Prepare a variety of standard gas samples with different components and different concentrations, and use a spectral phase analysis device to collect spectral data of each standard gas sample at multiple optical path lengths; S2. Analyze the sample data set to obtain a three-dimensional spectrum of absorbance, wave number and optical path length of each standard gas sample, and construct a three-dimensional spectrum library of the sample data set; S3, using a three-dimensional atlas library to train a deep learning model to obtain a mixed gas detection model; S4, using a spectral phase analysis device to collect spectral data of the gas sample to be tested at multiple optical path lengths, and constructing a three-dimensional spectrum of the gas sample to be tested; S5. Input the three-dimensional spectrum of the gas sample to be detected into the mixed gas detection model, that is, perform qualitative and / or quantitative detection on the gas sample to be detected.

[0021] By adopting the above technical solution, the method collects spectral data at different optical path lengths, constructs a three-dimensional spectrum library, and trains a deep learning model to achieve efficient analysis of mixed gas samples. This method utilizes a large amount of data and advanced algorithms to improve the speed and accuracy of analysis.

[0022] Optionally, the multiple optical paths in step S1 are continuously changing optical paths.

[0023] By adopting the above technical solution and the acquisition method of continuously changing the optical path, comprehensive acquisition of spectral data of standard gas samples is achieved, providing a basis for establishing an accurate three-dimensional spectrum library and mixed gas detection model.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application adopts the coordinated setting of the main light source and the auxiliary light source, so that the spectral phase analysis device can perform dual-path gas sample detection, and further can detect the gas sample at two different light paths, which can improve the accuracy and sensitivity of the detection.

[0025] 2. The present application can realize the adjustment of the optical path through the coordinated arrangement of the first housing, the second housing, the adjustment drive and the light beam adjustment mechanism, thereby increasing the diversity of the optical path of the spectral phase analysis device of the present application, and can also realize the linear adjustment of the optical path. This design provides data under different optical path conditions for the spectral analysis of gas samples, and improves the accuracy of spectral analysis.

[0026] 3. The present application can increase the adjustable range of the optical path in the spectral phase analysis device by installing the module and coordinating the module sockets, thereby being able to obtain spectral data of the gas sample at more optical path lengths, thereby improving the detection accuracy and sensitivity of different components in the gas sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the principle structure of the spectral phase analysis device of Example 1 of the present application.

[0028] Figure 2 It is a schematic diagram of the overall structure of the air storage box of Example 2 of the present application.

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the air storage box of Example 2 of the present application.

[0030] Figure 4 It is a schematic diagram of the overall structure of the adjustment drive component of Example 2 of the present application.

[0031] Figure 5 It is a schematic diagram of the overall structure of the light beam adjustment mechanism of Example 2 of the present application.

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the light beam adjustment mechanism of Example 2 of the present application.

[0033] Figure 7 It is a schematic diagram of the overall structure of the air storage box of Example 3 of the present application.

[0034] Figure 8 It is a schematic diagram of the cross-sectional structure of the air storage box of Example 3 of the present application.

[0035] Fig. 9 It is a schematic diagram of the overall structure of the air storage box of Example 4 of the present application.

[0036] Fig.10 It is a schematic diagram of the cross-sectional structure of the air storage box of Example 4 of the present application.

[0037] In the figure, 1. air storage box; 11. first box body; 12. second box body; 13. telescopic tube; 14. adjusting drive member; 141. first screw rod; 142. second screw rod; 143. base; 144. driving motor; 145. first slide; 146. second slide; 15. module socket; 16. mounting module; 17. mounting seat; 2. air supply mechanism; 21. air inlet pipe; 22. air outlet pipe; 23. air supply member; 24. air extraction member; 3. main light source; 4. receiver; 5. reflector; 6. data acquisition unit; 7. auxiliary light source; 8. dichroic mirror; 9. air storage chamber; 10. beam adjustment mechanism; 101. connecting block; 102. angle adjustment member; 1021. first motor; 1022. driving gear; 1023. driven gear; 103. vertical drive member. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 -Attached Fig.10 , further details of this application are given.

[0039] Example 1: A spectral phase analysis device, referring to Figure 1 , including an air storage box 1, on which an air supply mechanism 2 is arranged, the air supply mechanism 2 includes an air inlet pipe 21 and an air outlet pipe 22, both of which are detachably connected to the air storage box 1, and the air inlet pipe 21 and the air outlet pipe 22 are arranged at intervals along the length direction of the air storage box 1, one end of the air inlet pipe 21 is connected to the air storage box 1, and the other end is connected to an air supply member 23, in this embodiment, the air supply member 23 is a gas tank or an air pump. One end of the air outlet pipe 22 is connected to the air storage box 1, and the other end is connected to an air extraction member 24, in this embodiment, the air extraction member 24 is an air pump or an air sampling bag. This allows the gas sample to be injected into the air storage box 1 through the air inlet pipe 21, and after the analysis by the spectral phase analysis device is completed, the gas sample in the air storage box 1 can be discharged through the air outlet pipe 22.

[0040] Reference Figure 1 , a main light source 3, a receiver 4 and a plurality of reflectors 5 are arranged in the gas storage box 1. The main light source 3, the receiver 4 and the reflectors 5 are all arranged on the inner wall of the gas storage box 1, and the main light source 3 and the receiver 4 are arranged at intervals in the vertical direction, and the plurality of reflectors 5 are arranged between the main light source 3 and the receiver 4 in the vertical direction, and the plurality of reflectors 5 are arranged at intervals in the vertical direction in sequence, and two adjacent reflectors 5 in the vertical direction are respectively arranged on the two opposite inner walls of the gas storage box 1. When the main light source 3 emits a light beam, the light beam is reflected by all the reflectors 5 in sequence from top to bottom, and finally irradiates the receiver 4, at which time the receiver 4 can receive the light beam and obtain the spectrum data of the gas sample in the gas storage box 1.

[0041] Reference Figure 1A data acquisition unit 6 is also provided outside the gas storage box 1 . The data acquisition unit 6 is electrically connected to the receiver 4 . The data acquisition unit 6 can acquire the spectral data obtained in the receiver 4 .

[0042] Reference Figure 1 A secondary light source 7 and a dichroic mirror 8 are also provided in the gas storage box 1. Both the secondary light source 7 and the dichroic mirror 8 are provided on the inner wall of the gas storage box 1. The secondary light source 7 and the dichroic mirror 8 are located between the main light source 3 and the receiver 4 in the vertical direction. The light beam emitted by the secondary light source 7 and the light beam emitted by the main light source 3 are respectively irradiated on the opposite sides of the dichroic mirror 8, and the light beam emitted by the main light source 3 is reflected by the dichroic mirror 8, while the light beam emitted by the secondary light source 7 penetrates the dichroic mirror 8, and the optical axes of the light beam emitted by the main light source 3 and the light beam emitted by the secondary light source 7 coincide after passing through the dichroic mirror 8.

[0043] This makes the effect of the dichroic mirror 8 on the light beam emitted by the main light source 3 equivalent to that of the reflector 5, and the light beam emitted by the auxiliary light source 7 can coincide with the optical axis of the light beam emitted by the main light source 3, which makes the light beam emitted by the main light source 3 and the light beam emitted by the auxiliary light source 7 both irradiate the receiver 4, so that the receiver 4 receives light beams of two different optical paths, and further enables the receiver 4 to obtain spectral data of the gas sample under the two different optical paths.

[0044] Reference Figure 1 In this embodiment, the auxiliary light source 7 and the main light source 3 are respectively arranged on two opposite inner walls of the gas storage box 1. In addition, the auxiliary light source 7 and the main light source 3 can also be arranged on the same inner wall of the gas storage box 1.

[0045] The implementation principle of the embodiment of the present application is: by setting up the auxiliary light source 7 and the dichroic mirror 8, the receiver 4 can obtain spectral data of the gas sample under two different optical paths, which can increase the detection accuracy and sensitivity of different components in the gas sample.

[0046] Example 2: A spectral phase analysis device, referring to Figure 1 and reference Figure 2 The difference between this embodiment and the embodiment 1 is that the gas storage box 1 includes a first box body 11 and a second box body 12, the air inlet pipe 21 is connected to the first box body 11, and the air outlet pipe 22 is connected to the second box body 12. The opening of the first box body 11 is arranged toward the second box body 12, the opening of the second box body 12 is arranged toward the first box body 11, and the opening of the first box body 11 is connected to the opening of the second box body 12, so that a gas storage chamber 9 for accommodating a gas sample is formed between the first box body 11 and the second box body 12.

[0047] Reference Figure 2 and Figure 3The main light source 3, the auxiliary light source 7, the dichroic mirror 8, the receiver 4 and the plurality of reflectors 5 are respectively installed on the inner side wall of the first box 11 facing the second box 12 and on the inner side wall of the second box 12 facing the first box 11.

[0048] Reference Figure 2 and Figure 3 The first box body 11 and the second box body 12 are spaced apart, and a telescopic tube 13 is disposed between the first box body 11 and the second box body 12. In this embodiment, the telescopic tube 13 can be a hose or a corrugated tube, or any pipe that can be extended and retracted along its own axis. One end of the telescopic tube 13 is connected to the first box body 11, and the other end is connected to the second box body 12, and the opening of the first box body 11 and the opening of the second box body 12 are both connected to the telescopic tube 13.

[0049] Reference Figure 2 and Figure 4 An adjusting drive member 14 is also provided between the first box body 11 and the second box body 12. The adjusting drive member 14 includes a base 143, a first screw rod 141 and a second screw rod 142. The first screw rod 141 and the second screw rod 142 are coaxially connected. The first screw rod 141 and the second screw rod 142 have opposite thread rotation directions. The first screw rod 141 and the second screw rod 142 are both provided on the base 143, and the first screw rod 141 and the second screw rod 142 are both rotatably connected to the base 143. A driving motor 144 is provided on the base 143, and the driving motor 144 is coaxially connected to the first screw rod 141. The base 143 is provided with a first slide 145 and a second slide 146, the first slide 145 is connected to the first screw rod 141 by threads, the second slide 146 is connected to the second screw rod 142 by threads, and the first slide 145 and the second slide 146 are both slidably connected to the base 143 along the axial direction of the first screw rod 141. The first slide 145 is connected to the first box body 11, and the second slide 146 is connected to the second box body 12.

[0050] When the driving motor 144 drives the first screw rod 141 to rotate, the first screw rod 141 and the second screw rod 142 rotate synchronously, and the first slide 145 and the second slide 146 will move toward or away from each other, thereby realizing the first box body 11 and the second box body 12 moving toward or away from each other.

[0051] When the first box body 11 and the second box body 12 move toward or away from each other, the distance between the first box body 11 and the second box body 12 can be adjusted. Due to the arrangement of the telescopic tube 13, the gas storage chamber 9 is in a closed state, ensuring that the gas sample will not leak out. In addition, during the process of the first box body 11 and the second box body 12 moving toward or away from each other, the distance between the two opposite inner walls of the first box body 11 and the second box body 12 can be changed, thereby realizing the linear adjustment of the optical path.

[0052] In this embodiment, in order to ensure that the distance between the first box body 11 and the second box body 12 is adjustable, a support platform is provided at the lower side of the air storage box 1, and the base 143 of the adjustment drive member 14 is fixed to the support platform, and the air storage box 1 is spaced or slidably connected to the support platform. This ensures that the adjustment drive member 14 can realize the driving of the first box body 11 and the second box body 12.

[0053] Reference Figure 3 and Figure 5 The main light source 3, the auxiliary light source 7 and the receiver 4 are all rotatably connected to the inner wall of the corresponding first box 11 or the inner wall of the second box 12, and a beam adjustment mechanism 10 is arranged between the main light source 3, the auxiliary light source 7 and the receiver 4 and the inner wall of the corresponding first box 11 or the inner wall of the corresponding second box 12, and a mounting seat 17 is arranged between the beam adjustment mechanism 10 and the corresponding main light source 3 or the auxiliary light source 7 or the receiver 4, and the main light source 3, the auxiliary light source 7 and the receiver 4 are all detachably connected to the corresponding mounting seat 17. Specifically, the main light source 3, the auxiliary light source 7 and the receiver 4 are all connected to the corresponding mounting seat 17 by threaded connection or magnetic attraction.

[0054] Reference Figure 3 and Figure 5 The beam adjustment mechanism 10 includes a connecting block 101, an angle adjustment member 102 and a vertical driving member 103. The vertical driving member 103 is arranged on the inner wall of the corresponding first box body 11 or the second box body 12. The vertical driving member 103 adopts a linear module driven by a motor. The driving direction of the vertical driving member 103 is arranged along the vertical direction. The vertical driving member 103 is connected to the connecting block 101, which enables the connecting block 101 to move in the vertical direction.

[0055] Reference Figure 5 and Figure 6 The angle adjustment member 102 is arranged on the connecting block 101, and the angle adjustment member 102 includes a first motor 1021, a driving gear 1022 and a driven gear 1023. The driving gear 1022 and the driven gear 1023 are both rotatably connected to the connecting block 101. The first motor 1021 is arranged on the connecting block 101, and the output shaft of the first motor 1021 is coaxially connected to the driving gear 1022. The mounting seat 17 is fixed on the outside of the driven gear 1023. When the first motor 1021 is driven, the driving gear 1022 drives the driven gear 1023 to rotate, thereby realizing the adjustment of the angle of the mounting seat 17.

[0056] Reference Figure 3 and Figure 5, since the main light source 3, the auxiliary light source 7 and the receiver 4 are all mounted on the corresponding mounting seat 17. Under the action of the corresponding beam adjustment mechanism 10, the light beams emitted by the main light source 3 and the auxiliary light source 7 can be adjusted, and the receiving angle of the receiver 4 can be adjusted to ensure that after the distance between the first box 11 and the second box 12 is changed, the receiver 4 can still receive the light beams emitted by the main light source 3 and the auxiliary light source 7.

[0057] The implementation principle of the embodiment of the present application is as follows: by setting the telescopic tube 13 and the adjusting driving member 14, the distance between the first box body 11 and the second box body 12 can be adjusted, which can change the length of the gas storage box 1, which can change the optical path of the light beam in the gas storage box 1, and then realize the linear adjustment of the optical path, and the setting of the light beam adjustment mechanism 10 can ensure that during the adjustment process of the length of the gas storage box 1, the receiver 4 can always receive the light beams of the main light source 3 and the auxiliary light source 7. Therefore, it is possible to obtain the spectral data of the gas sample to be detected under the continuously changing optical path, which can improve the detection accuracy and sensitivity of different components in the gas sample.

[0058] Example 3, a spectral phase analysis device, referring to Figure 7 and Figure 8 The difference between this embodiment and embodiment 2 is that the first box body 11 and the second box body 12 are arranged opposite to each other in the horizontal direction, one side of the opening of the first box body 11 is plugged into the one side of the opening of the second box body 12, and the outer wall of the first box body 11 is slidably connected with the inner wall of the second box body 12.

[0059] The implementation principle of the embodiment of the present application is: by setting the first box body 11 and the second box body 12 to be slidably connected, under the drive of the adjustment driving member 14, the first box body 11 and the second box body 12 can slide relative to each other, which can change the length of the gas storage box 1. Such a structural setting can reduce the size of the gas storage box 1, so that the gas storage box 1 can be used in a small-sized spectral phase analysis device.

[0060] Example 4, a spectral phase analysis device, referring to Fig. 9 and Fig.10 The difference between this embodiment and embodiment 2 is that a plurality of module sockets 15 are provided on opposite sides of the first box body 11 and the second box body 12, and the module sockets 15 penetrate the corresponding first box body 11 or the second box body 12, and the plurality of module sockets 15 on the first box body 11 or the second box body 12 are arranged in sequence at intervals in the vertical direction.

[0061] Reference Fig. 9 and Fig.10The first box body 11 and the second box body 12 are both provided with a plurality of mounting modules 16, which are arranged one by one with the module sockets 15, and the mounting modules 16 are plugged and matched with the corresponding module sockets 15, and the mounting modules 16 close the corresponding module sockets 15. The arrangement of a plurality of mounting modules 16 can close all the module sockets 15, and ensure the closure of the gas storage chamber 9.

[0062] Reference Fig. 9 and Fig.10 , a beam adjustment mechanism 10 is provided on the side of the mounting module 16 facing the gas storage chamber 9. There are a number of mounting modules 16 corresponding to the main light source 3, the auxiliary light source 7, the receiver 4 and the plurality of reflectors 5, and the main light source 3, the auxiliary light source 7, the receiver 4 and the plurality of reflectors 5 are all mounted on the mounting seat 17 connected to the corresponding beam adjustment mechanism 10. With such a structural setting, when the spectral phase analysis device needs to be routinely maintained or repaired, it is only necessary to pull out the mounting module 16 with the corresponding components installed to achieve the maintenance or replacement of the components, which is convenient for the maintenance of the spectral phase analysis device.

[0063] In this embodiment, the dichroic mirror 8 and the secondary light source 7 are mounted on the same mounting module 16, the dichroic mirror 8 and the corresponding mounting module 16 are detachably connected, and the secondary light source 7 is located between the dichroic mirror 8 and the corresponding mounting module 16. Specifically, the dichroic mirror 8 and the corresponding mounting module 16 are connected by bolts, which facilitates the installation and removal of the dichroic mirror 8.

[0064] The main light source 3, the auxiliary light source 7, the receiver 4 and the plurality of reflectors 5 are all detachably connected to the corresponding mounting base 17. In this embodiment, the main light source 3, the auxiliary light source 7, the receiver 4 and the plurality of reflectors 5 are connected to the corresponding mounting base 17 by magnetic attraction.

[0065] The implementation principle of the embodiment of the present application is: by setting the installation module 16 and the module socket 15, the installation module 16 can be freely installed on the opposite sides of the air storage box 1. Since the main light source 3, the auxiliary light source 7, the dichroic mirror 8, the receiver 4 and the plurality of reflectors 5 are all installed on the corresponding installation modules 16, this facilitates the replacement and maintenance of each component.

[0066] At the same time, since the mounting module 16 is easy to install on the gas storage box 1, the mounting module 16 is also easy to remove from the gas storage box 1, which makes it easy to replace the positions of various components in the vertical direction. It is also possible to add a reflector 5 to the mounting module 16 without a reflector 5 installed, and it is also possible to remove the reflector 5 on the mounting module 16, which makes it easy to freely change the number of reflectors 5 in the gas storage box 1, and then change the number of reflections of the light beam in the gas storage box 1, thereby realizing the adjustment of the optical path.

[0067] This can increase the adjustable range of the optical path in the spectral phase analysis device, thereby being able to obtain spectral data of the gas sample at more optical path lengths, thereby improving the detection accuracy and sensitivity of different components in the gas sample.

[0068] Embodiment 5, a method for phase analysis using spectroscopy, comprising the following steps: S1. Prepare a variety of standard gas samples with different components and concentrations, and use a spectral phase analysis device to collect spectral data of each standard gas sample at multiple optical pathlengths.

[0069] Specifically, S11: injecting a standard gas sample into the gas storage box 1 .

[0070] S12: The main light source 3 and the auxiliary light source 7 emit light beams, the receiver 4 receives the light beams, and the data acquisition unit 6 acquires spectral data, completing the acquisition of standard gas sample data under two optical paths.

[0071] S13: Adjust the distance between the first box 11 and the second box 12, and correspondingly adjust the vertical position and tilt angle of the main light source 3, the auxiliary light source 7 and the receiver 4. Collect spectral data each time the adjustment is performed to obtain spectral data of the standard gas sample under a continuously changing optical path.

[0072] When the tilt angle of the auxiliary light source 7 is adjusted, and the light beam emitted by the auxiliary light source 7 cannot coincide with the optical axis of the light column of the main light source 3, the corresponding vertical driving component 103 and the angle adjusting component 102 synchronously adjust the position of the auxiliary light source 7 to ensure that the light beam emitted by the auxiliary light source 7 coincides with the optical axis of the light beam emitted by the main light source 3.

[0073] When the distance between the first box 11 and the second box 12 increases or decreases to a limit, if it is still impossible to obtain relatively accurate spectral data of the gas sample, then according to the actual spectral data, a reflector 5 is added to the mounting module 16 on which no components are installed on the first box 11 and the second box 12, or the reflector 5 is removed from the mounting module 16 on which the reflector 5 is already installed, so that the number of reflections of the light beam in the gas storage box 1 can be adjusted, thereby changing the optical path. By cooperating with the adjustment drive 14 in this way, the optical path adjustment range in the spectral phase analysis device can be increased, and the detection accuracy and sensitivity of the spectral phase analysis device to different components in the gas sample can be improved.

[0074] S14. Repeat steps S11-S13 to complete data collection of all prepared standard gas samples under continuously changing optical pathlengths.

[0075] S2. Analyze the sample data set to obtain a three-dimensional spectrum of absorbance, wave number and optical path length of each standard gas sample, and construct a three-dimensional spectrum library of the sample data set.

[0076] S3. Use the three-dimensional atlas library to train the deep learning model to obtain a mixed gas detection model.

[0077] S4. Use a spectral phase analysis device to collect spectral data of the gas sample to be tested at multiple optical path lengths, and construct a three-dimensional spectrum of the gas sample to be tested.

[0078] S5. Input the three-dimensional spectrum of the gas sample to be detected into the mixed gas detection model, that is, perform qualitative and / or quantitative detection on the gas sample to be detected.

[0079] The implementation principle of the embodiment of the present application is: by using a spectral phase analysis device with adjustable optical path, a three-dimensional spectrum of the absorbance, wave number and optical path length of the gas sample is obtained, a three-dimensional spectrum library of the gas sample is constructed, and a detection model of the mixed gas is established based on the analysis of the three-dimensional spectrum library. Then, when the spectral phase analysis device is used to detect the gas sample to be detected, by comparing the three-dimensional spectrum of the sample to be detected with the detection model of the mixed gas, the components of the sample to be detected can be determined quickly, comprehensively and accurately. This innovative analysis method not only overcomes the limitations of existing methods, but also significantly improves the intelligent level of gas analysis, bringing great convenience and value to scientific research and practical applications.

[0080] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spectral phase analysis device, characterized in that: include: A gas storage box (1), used for containing a gas sample; A main light source (3) and a secondary light source (7), wherein the main light source (3) and the secondary light source (7) are arranged in the gas storage box (1), and both the main light source (3) and the secondary light source (7) are used to emit light beams; a dichroic mirror (8), the dichroic mirror (8) being arranged in the gas storage box (1), and the light beams emitted by the main light source (3) and the auxiliary light source (7) respectively irradiate opposite sides of the dichroic mirror (8), the dichroic mirror (8) being used to reflect the light beam emitted by the main light source (3), the light beam emitted by the auxiliary light source (7) penetrating the dichroic mirror (8), and the light beam emitted by the main light source (3) and the light beam emitted by the auxiliary light source (7) having their optical axes coincide with each other after passing through the dichroic mirror (8); a plurality of reflectors (5), wherein the plurality of reflectors (5) are arranged in the gas storage box (1), and the plurality of reflectors (5) are used to reflect light beams emitted by the main light source (3) and the auxiliary light source (7); a receiver (4), the receiver (4) being arranged on the gas storage box (1), and the receiver (4) being used to receive light beams emitted by the main light source (3) and the auxiliary light source (7); A data acquisition unit (6), the data acquisition unit (6) being electrically connected to the receiver (4), the data acquisition unit (6) being used to acquire spectral data obtained by the receiver (4) and to analyze the spectral data.

2. A spectral phase analysis device according to claim 1, characterized in that: A beam adjustment mechanism (10) is provided between the main light source (3), the auxiliary light source (7) and the receiver (4) and the corresponding inner wall of the gas storage box (1); the beam adjustment mechanism (10) comprises an angle adjustment member (102) and a vertical drive member (103); the angle adjustment member (102) is used to drive the corresponding main light source (3) or auxiliary light source (7) or receiver (4) to rotate; and the vertical drive member (103) is used to adjust the corresponding main light source (3) or auxiliary light source (7) or receiver (4) to move in a straight line direction.

3. A spectral phase analysis device according to claim 2, characterized in that: The air storage box (1) comprises a first box body (11) and a second box body (12); an opening of the first box body (11) and an opening of the second box body (12) are arranged opposite to each other, and the first box body (11) and the second box body (12) are communicated with each other; an air storage chamber (9) is formed between the first box body (11) and the second box body (12); Therefore, an adjusting driving member (14) is provided between the first box body (11) and the second box body (12) for driving the first box body (11) and the second box body (12) to move toward or away from each other, and when the first box body (11) and the second box body (12) move toward or away from each other, the air storage chamber (9) is closed; The plurality of light beam adjustment mechanisms (10) are respectively arranged on the inner side wall of the first box body (11) facing the second box body (12) and on the inner side wall of the second box body (12) facing the first box body (11).

4. A spectral phase analysis device according to claim 3, characterized in that: The first box body (11) and the second box body (12) are plug-fitted and matched, and the first box body (11) and the second box body (12) are slidably connected via inner side walls.

5. A spectral phase analysis device according to claim 3, characterized in that: A telescopic tube (13) is provided between the first box body (11) and the second box body (12); two ends of the telescopic tube (13) are respectively connected to the first box body (11) and the second box body (12); one end of the telescopic tube (13) is in communication with an opening of the first box body (11), and the other end is in communication with an opening of the second box body (12).

6. A spectral phase analysis device according to claim 2, characterized in that: A plurality of module sockets (15) are provided on opposite side walls of the gas storage box (1), the module sockets (15) penetrate the corresponding side walls of the gas storage box (1), and the plurality of module sockets (15) are arranged in sequence and at intervals along the driving direction of the vertical driving member (103); The gas storage box (1) is provided with a plurality of mounting modules (16), the mounting modules (16) being arranged in a one-to-one correspondence with the module sockets (15), the mounting modules (16) being plugged into and matched with the corresponding module sockets (15), and the mounting modules (16) closing the corresponding module sockets (15); There are a plurality of mounting modules (16) arranged in one-to-one correspondence with the main light source (3), the auxiliary light source (7), the receiver (4) and the plurality of reflectors (5); the main light source (3), the auxiliary light source (7), the receiver (4) and the plurality of reflectors (5) are all arranged on the corresponding mounting modules (16), and the dichroic mirror (8) and the auxiliary light source (7) are arranged on the same mounting module (16); The light beam adjustment mechanism (10) is arranged between the main light source (3), the auxiliary light source (7) and the receiver (4) and the corresponding mounting module (16).

7. A spectral phase analysis device according to claim 6, characterized in that: A mounting seat (17) is provided on the mounting module (16), and the light beam adjustment mechanism (10) is provided between the mounting seat (17) and the corresponding mounting module (16); The main light source (3), the auxiliary light source (7), the receiver (4) and the plurality of reflectors (5) are all detachably connected to the corresponding mounting seats (17).

8. A method for phase analysis using spectroscopy, using the spectral phase analysis device according to any one of claims 1 to 7 to perform spectral analysis, characterized in that: The following steps are involved: S1. Prepare a variety of standard gas samples with different components and different concentrations, and use a spectral phase analysis device to collect spectral data of each standard gas sample at multiple optical path lengths; S2. Analyze the sample data set to obtain a three-dimensional spectrum of absorbance, wave number and optical path length of each standard gas sample, and construct a three-dimensional spectrum library of the sample data set; S3, using a three-dimensional atlas library to train a deep learning model to obtain a mixed gas detection model; S4, using a spectral phase analysis device to collect spectral data of the gas sample to be tested at multiple optical path lengths, and constructing a three-dimensional spectrum of the gas sample to be tested; S5. Input the three-dimensional spectrum of the gas sample to be detected into the mixed gas detection model, that is, perform qualitative and / or quantitative detection on the gas sample to be detected.

9. The method for phase analysis using spectroscopy according to claim 8, characterized in that: In step S1, the multiple optical paths are continuously changing optical paths.

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