CN117214106B - Composite spectrum acquisition system and working method - Google Patents

Abstract

The invention provides a composite spectrum acquisition system and a working method thereof, wherein the composite spectrum acquisition system comprises a shell module, a first acquisition module and a second acquisition module which are arranged in the shell module; the first acquisition module comprises a first bracket and a first rotating assembly; the first bracket is provided with a first optical fiber and a first light source, and the first rotating assembly comprises a first rotating disc main body, a first collecting through hole and a first transmission through hole; the second acquisition module comprises a second bracket and a second rotating assembly; the second bracket is provided with a second optical fiber and a second light source, and the second rotating assembly comprises a second rotating disc main body, a second acquisition through hole and a second transmission through hole; the first rotary disk main body is provided with a first shading column; the second rotary disk main body is provided with a second shading column; the second light source can penetrate through the first transmission through hole and the second transmission through hole and is positioned opposite to the second optical fiber. The composite spectrum acquisition system can realize single-channel and multi-channel composite acquisition, and has wide application range.

Description

Composite spectrum acquisition system and working method

Technical Field

The invention relates to the field of near infrared analysis instruments, in particular to a composite spectrum acquisition system and a working method.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The existing spectrum acquisition system can only realize single-channel and single-function spectrum detection acquisition. Therefore, the application range of the product is small, and the universality is poor.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present invention and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the invention section.

Disclosure of Invention

Based on the defects in the prior art, the composite spectrum acquisition system and the working method in the application are used for solving the problem of small application range.

In order to achieve the above object, the present invention provides the following technical solutions.

The embodiment of the application discloses a compound spectrum acquisition system, includes:

the shell module is provided with an object placing platform for placing objects to be tested;

the first acquisition module is fixedly arranged in the shell module and comprises a first bracket and a first rotating assembly capable of rotating relative to the first bracket, and the first rotating assembly is positioned between the first bracket and the object to be detected; the first bracket is provided with a first optical fiber and a first light source, and the first rotating assembly comprises a first rotating disc main body, a first acquisition through hole and a first transmission through hole which are arranged on the first rotating disc main body; the first rotary disk main body is provided with a first light shielding column for sealing the first light source when the first optical fiber is opposite to the first transmission through hole;

the second acquisition module is movably arranged in the shell module and is opposite to the first acquisition module; the second acquisition module comprises a second bracket and a second rotating assembly capable of rotating relative to the second bracket, and the second rotating assembly is positioned between the second bracket and the object to be detected; the second bracket is provided with a second optical fiber and a second light source, and the second rotating assembly comprises a second rotating disc main body, a second acquisition through hole and a second transmission through hole which are arranged on the second rotating disc main body; the second rotary disk main body is provided with a second light shielding column for sealing the second optical fiber when the second light source is opposite to the second transmission through hole;

the spectrum acquisition system is connected with the first optical fiber and the second optical fiber respectively;

the composite spectrum acquisition system has at least three working states:

in a first working state, the first light source is in an on state, the first light source and the first optical fiber are opposite to the first acquisition through hole, and the first optical fiber is used for receiving light which is diffusely reflected by an object to be detected and enters the first acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a second working state, the second acquisition module is moved to one side of the object to be detected, the second light source is in an on state, the second light source and the second optical fiber are opposite to the second acquisition through hole, and the second optical fiber is used for receiving light which is diffusely reflected by the object to be detected and enters the second acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a third working state, the second acquisition module is moved to the state that the second light source and the first optical fiber are oppositely arranged; the second shading column shades the second optical fiber, the first shading column shades the first light source, the second light source is in an on state, and the first light source is in an off state; and light emitted by the second light source enters the first optical fiber through the second transmission through hole, the object to be detected and the first transmission through hole, so that transmission collection is realized.

Preferably, the timed acquisition is achieved by rotating the second dynamic rotating assembly and the first rotating assembly, preventing long term irradiation from affecting the moisture and temperature of the sample.

Preferably, the three operating states of the composite spectrum acquisition system are alternately performed and/or timed.

Preferably, the spectrum acquisition system comprises two spectrometer modules, and the input ends of the two spectrometer modules are respectively connected with the first optical fiber and the second optical fiber; the first operating state and the second operating state may be performed simultaneously.

Preferably, the device further comprises a driving mechanism for driving the second acquisition module to move, wherein the driving mechanism comprises a lifting driving module for driving the second acquisition module to move along the direction perpendicular to the axis of the second rotary disk main body, and a trigger sensor is arranged on one side of the second rotary disk main body, which faces the object to be detected.

Preferably, the first light source is located radially outside the first optical fiber; the second light source is located radially inward of the first optical fiber.

Preferably, the first light shielding column extends from the first rotating disk body toward the first bracket; and/or the number of the groups of groups,

the second light shielding column extends from the second rotary disk main body towards the direction of the second bracket.

Preferably, the first optical fiber and the second optical fiber are two branches of a pair of two optical fibers.

Preferably, a first hall sensor is arranged on the first bracket, and a first magnet column and a first magnet are arranged on one side of the first rotary disk main body facing the first bracket so as to control the rotation angle of the first rotary disk main body; and/or the number of the groups of groups,

the second support is provided with a second Hall sensor, and the second rotary disk main body is provided with a second magnet column and a second magnet on one side facing the second support so as to control the rotation angle of the second rotary disk main body.

The embodiment of the application discloses a working method based on the composite spectrum acquisition system, which comprises the following steps:

acquiring a control instruction;

selecting a working mode matched with the control instruction according to the acquired control instruction;

according to the selected working module, the first acquisition module and/or the second acquisition module are correspondingly controlled;

wherein, the working mode includes at least three working states:

in a first working state, the first light source is in an on state, the first light source and the first optical fiber are opposite to the first acquisition through hole, and the first optical fiber is used for receiving light which is diffusely reflected by an object to be detected and enters the first acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a second working state, the second light source is in an on state, the second light source and the second optical fiber are opposite to the second acquisition through hole, and the second optical fiber is used for receiving light which is diffusely reflected by an object to be detected and enters the second acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a third working state, the second shading column shades the second optical fiber, the first shading column shades the first light source, the second light source is in an on state, and the first light source is in an off state; and light emitted by the second light source enters the first optical fiber through the second transmission through hole, the object to be detected and the first transmission through hole, so that transmission collection is realized.

By the technical scheme, the invention has the beneficial effects that:

1. the composite spectrum acquisition system and the working method can realize a single-channel and multi-channel composite acquisition system, and are wide in application range.

2. The composite spectrum acquisition system and the working method can realize multiple functions such as single-side acquisition, single-channel acquisition, double-side double-channel acquisition and the like;

3. the composite spectrum acquisition system and the working method can have diffuse reflection, transmission and diffuse transmission functions at the same time.

4. The composite spectrum acquisition system and the working method have the function of automatically adjusting the position, so that the self-adaptive acquisition can be realized;

5. the composite spectrum acquisition system and the working method can realize a timing acquisition function;

6. the composite spectrum acquisition system and the working method have strong expandability; the device can be used for timing acquisition, alternate acquisition, double-channel acquisition and the like.

7. The composite spectrum acquisition system and the working method in the application can be widely applied to medical skin detection, textile fabric detection, chemical liquid detection, agricultural fruit detection and the like.

Specific embodiments of the invention are disclosed in detail below with reference to the following description and the accompanying drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not limited in scope thereby. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present invention, and are not particularly limited. Those skilled in the art with access to the teachings of the present invention can select a variety of possible shapes and scale sizes to practice the present invention as the case may be. In the drawings:

fig. 1 is a schematic diagram of an overall layout structure of a composite spectrum acquisition system according to an embodiment of the invention.

Fig. 2 is a schematic cross-sectional view of fig. 1.

Fig. 3 is a partial schematic view of the housing module.

Fig. 4 is a schematic structural diagram of the first acquisition module.

Fig. 5a is a schematic structural view of the first rotating assembly.

Fig. 5b is a side view of the first rotating assembly.

Fig. 5c is a sectional view of E-E of fig. 5 a.

Fig. 6 is a schematic structural diagram of a second acquisition module.

Fig. 7 is a side view of the acquisition unit.

Fig. 8a is a schematic structural view of a second rotating assembly.

Fig. 8b is a G-G cross-sectional view of fig. 8 a.

Fig. 8c is a sectional view of E-E of fig. 8 a.

FIG. 9 is a schematic diagram of a two-in-one core end.

Fig. 10 is a schematic diagram of diffuse reflection and/or diffuse transmission collection performed by the first collection module.

Fig. 11 is a schematic diagram of diffuse reflection and/or diffuse transmission collection performed by the second collection module.

Fig. 12 is a schematic diagram of the principle of transmission acquisition by the composite spectrum acquisition system.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, shall fall within the scope of the invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

It should be noted that, in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the invention, unless otherwise indicated, the inclusion of "a plurality" is defined as two or more.

Referring to fig. 1 and 2, the composite spectrum acquisition system in the implementation of the present application includes a housing module 1, a touch screen module 2, a first acquisition module 3, a spectrometer module 4, an electronic control module 5, a lifting driving module 6, a pair of two optical fibers 7, a second acquisition module 8, a wiring group 9, and the like.

Wherein the housing module 1 is provided with an object placing platform for placing an object to be tested (dotted line part in fig. 1). As shown in connection with fig. 3, the housing module 1 and the touch screen module 2 constitute the main body support and the outline of the system. Wherein the housing module 1 is provided with a trigger sensor element 11 and a window 12. The triggering sensor 11 is closely adjacent to the viewing window 12, and is used for judging whether the object to be measured is placed at the viewing window 12. The touch screen module 2 comprises a touch screen, so that important interaction functions of the system are realized.

As shown in connection with fig. 4, 5a, 5b and 5c, the first acquisition module 3 comprises a first bracket 31, a first motor 32, a first hall sensor 33, a first optical fiber 34, a first light source 35 and a first rotating assembly 36. The first bracket 31, besides supporting the related parts, also plays a role of connecting the first acquisition module 3 with the housing module 1. In the present embodiment, the first bracket 31 is fixedly connected to the housing module 1. In other embodiments, the first bracket 31 may also be movable relative to the housing module 1 by a drive mechanism (described in more detail below).

The first motor 32 may rotate the first rotating assembly 36 relative to the first bracket 31. The first optical fiber 34 is a branch of the pair of two optical fibers 7 and is installed in parallel with the first motor connecting shaft 368 in the same direction. An included angle is formed between the first light source 35 and the first optical fiber 34, so that the first optical fiber can perform diffuse reflection collection on the object to be detected through the first collection through hole when the first light source is in an on state. The first light source 35 provides the first collection module 3 itself with the function of collecting light. The distance between the first rotating component 36 and the first viewing window 12 is controlled as much as possible, so that the optical path difference between the reference calibration and the sampled sample is reduced.

The first rotating assembly 36 includes a first rotating disk main body 361, a first reference plate 362, a first diffuse reflection standard plate 363, a first light shielding column 364, a first transmission through hole 36B, a first magnet column 366, a first magnet 367 disposed thereon, a first motor connecting shaft 368 disposed therebetween, and a first collection through hole 36A. Wherein the first rotating disk body 361 supports all of the features and accessories of the assembly. In the process of rotating the first rotating assembly 36 relative to the first bracket 31, the first light source 35 can respectively irradiate the first reference plate 362 and the first diffuse reflection standard sheet 363, and meanwhile, the first optical fiber 34 can receive the light of the first reference plate 362 and the first diffuse reflection standard sheet 363, so that the purposes of reference acquisition and calibration are achieved. When the first rotating member 36 rotates to the first light shielding column 364 to completely shield the light source, the first optical fiber 34 may receive external illumination light. The first magnet post 366 is used to make the first magnet 367 closer to the first hall sensor 33 for confirming the position of the first rotating assembly 36.

The first collecting through hole 36A is a through hole for collecting a sample, when the first rotating component 36 rotates to a corresponding position, the first light source 35 passes through the first collecting through hole 36A, irradiates the sample to be tested through the window 12 on the housing module 1, and meanwhile, the light of diffuse reflection and/or diffuse transmission of the object to be tested is received by the first optical fiber 34 and then transmitted into the spectrometer module 4 after passing through the first collecting through hole 36A, so as to realize the collecting function of the channel. In other words, diffuse reflection collection or diffuse transmission collection of the object to be measured can be achieved through the first light source 35 and the first optical fiber 34. Diffuse reflection acquisition and diffuse transmission acquisition of certain objects to be detected can be realized through the first light source 35 and the first optical fiber 34.

When the first rotating component 36 rotates to the corresponding position, the fiber core end face of the first optical fiber 34 can receive the light beam irradiated by the first light source 35 to the set area covered by the light spots on the first reference plate 362, the first diffuse reflection standard sheet 363 and the viewing window 12, so that calibration can be performed.

As shown in fig. 6, 7, 8a, 8b and 8c, the second collecting module 8 includes a lifting housing 81, a moving guide sleeve 82, a collecting unit 83, and a trigger sensor 84 and a window 85 outside the lifting housing 81. The lifting housing 81 and the moving guide 82 are movable up and down by the lifting drive module 6, wherein the moving guide 82 is movable up and down at the 100 of the housing module 1. The collection unit 83 is fixed in the elevation housing 81 and moves therewith. The trigger sensor 84 senses whether the module is in close proximity to the test object when moved. When the drive means of the lifting drive module 6 are signaled after the attachment, it is ensured that it is stopped. The trigger sensor 84 and window 85 are positioned in close proximity to ensure that the test object is simultaneously positioned against them. The viewing window 85 is in coaxial relationship with the viewing window 12.

The second acquisition module 8 comprises a second support 831, a second motor 832, a second hall sensor 833, a second optical fiber 834, a second light source 835, and a second dynamic rotation assembly 836. Wherein the second support 831 functions to connect the elevation housing 81 in addition to supporting the relevant parts. The second motor 832 drives the second dynamic rotation assembly 836. The second optical fiber 834 is a branch of the pair of two optical fibers 7. The second light source 835 is mounted in the same direction as the motor shaft and serves to provide the second collection module 8 with collected light. The second light source 835 may be in coaxial relationship with the receiving-end core of the first optical fiber 34. The second light source 835 forms an angle with the second optical fiber 834, so that the second optical fiber can perform diffuse reflection collection on the object to be measured through the second collection through hole 836A when the second light source is in the on state. The second light source 835 may also pass through the viewing window 85 and the viewing window 12 to cooperate with the first optical fiber 34. The second dynamic rotation component 836 is as close to the window 85 as possible to reduce the optical path differences between the reference calibration and the sample.

The second dynamic rotating assembly 836 includes a second rotating disk main body 8361, a second reference plate 8362, a second diffuse reflection standard plate 8363, a second shading column 8364 and a second transmission through hole 836B, a second magnet column 8366 and a second magnet 8367 residing thereon, a second collection through hole 836A, a second transmission through hole 836B, a third shading column 8365 and an inner transmission standard plate 8369, and a centered motor connecting shaft 8368. Wherein the second rotating disk main body 8361 supports all of the features and accessories of the second dynamic rotating assembly 836. The second light source 835 can illuminate the second reference plate 8362 and the second diffuse reflection standard plate 8363 respectively at corresponding angles of the second dynamic rotating component 836 in the rotating process, and meanwhile, the second optical fiber 834 can receive the light of the second reference plate 8362 and the second diffuse reflection standard plate 8363, so that the purposes of reference and calibration are achieved. When the second dynamic rotation component 836 rotates to the second shading column 8364 to fully shade the second optical fiber 834, the second light source 835 can radiate to the outside.

When the second dynamic rotating component 836 rotates to a designated position, the core end surface of the second optical fiber 834 can receive the second light source 835 to irradiate the second reference plate 8362, the second diffuse reflection standard sheet 8363 and the setting region covered by the light spot on the viewing window 85

The second magnet post 8366 serves to make the second magnet 8367 closer to the second hall sensor 833 for confirming the position of the second dynamic rotating assembly 836. The second collecting through hole 836A is a through hole for collecting a sample, when the second dynamic rotating component 836 rotates to a corresponding position, the second light source 835 passes through the first collecting through hole 36A, and irradiates the sample to be tested through the window 85 on the lifting housing 81, meanwhile, the light of diffuse reflection and/or diffuse transmission of the object to be tested is received by the second optical fiber 834 and then transmitted into the spectrometer module 4 after passing through the second collecting through hole 836A, so as to realize the collecting function of the channel. In other words, diffuse reflection collection or diffuse transmission collection of the object to be measured can be achieved through the second light source 835 and the second optical fiber 834. Diffuse reflection acquisition and diffuse transmission acquisition of certain analytes can also be achieved through a second light source 835 and a second optical fiber 834.

When the second acquisition module 8 and the first acquisition module 3 are required to form a transmission light path together, the program control enables the 8365 light shielding column to shield the second optical fiber 834, and meanwhile, the light of the second light source 835 penetrates through the transmission standard sheet 8369, passes through the window 85 and the window 12 and is received by the first optical fiber 34 on the first acquisition module 3 to be transmitted into the spectrometer, so that the purpose of transmission calibration is achieved.

When the second collection module 8 and the first collection module 3 are required to realize transmission collection together, the second shading column 8364 is controlled by a program to shade the second optical fiber 834, the second light source 835 sequentially passes through the view window 85, the transmission sample and the view window 12 through the second transmission through hole 836B, and then enters the first optical fiber 34 through the first transmission through hole 36B and is transmitted into the spectrometer, so that the purpose of transmission collection is achieved. Note that: the first light shielding column 364 shields the first light source 35 in this process to prevent interference with the collection light path.

In the present embodiment, the drive mechanism includes a lift drive module 6, and the lift drive module 6 can determine a position (typically, a maximum position) at the time of system start-up according to a setting. When the object to be measured is placed at the point to be measured, the lifting driving module 6 adjusts the second collecting module 8. When the trigger sensor 84 on the second acquisition module 8 is triggered by the object to be detected, that is, it is determined that the lifting driving module 6 has moved to a suitable position, the movement is stopped.

Of course, in other alternative embodiments, the drive mechanism may also comprise other transmission mechanisms capable of moving the first acquisition module 3 and/or the second acquisition module 8.

The spectrum acquisition system is the core of spectrum acquisition, collects the optical signal, and outputs the effect of spectral information. In this embodiment, the spectrum acquisition system includes one spectrometer module 4 and one-to-two optical fiber connection, the first optical fiber and the second optical fiber being two branches of one-to-two optical fibers. As shown in fig. 9, the one-to-two optical fibers 7 are used for transmitting optical information between the first acquisition module 3 and the second acquisition module 8 and between the spectrometer module 4. One end of the pair of two optical fibers 7 is a two-in-one fiber core, and the two fiber cores are arranged in a central and tight way. The end has a mounting and positioning structure that ensures that the centrally arranged two cores are aligned with the center of the slit of the spectrometer module and both are located at the center of the slit when the spectrometer module 4 is connected. The other end is divided into a first optical fiber 34 and a second optical fiber 834, which are respectively connected to the first acquisition module 3 and the second acquisition module 8.

Of course, in other alternative embodiments, the spectrum acquisition system includes two spectrometer modules, and the input ends of the two spectrometer modules are respectively connected to the first optical fiber and the second optical fiber. Therefore, through the two spectrometer modules, diffuse reflection and/or diffuse transmission acquisition can be carried out on two side surfaces of the object to be detected at the same time under the state that the first light source and the second light source are simultaneously started.

In the present embodiment, an electronic control module 5 and a wiring group 9 may also be included. The electronic control module 5 has the functions of power management, signal transmission, data processing, logic control and the like for providing the whole system. The electronic control module 5 may be electrically connected to the first motor 32, the second motor 832, the driving mechanism, the first power source 35, the second power source 835, the trigger sensor 11, the first hall sensor 33, the second hall sensor 833, etc., so as to obtain a corresponding detection signal or perform a corresponding control. The wiring group 9 is a wire group connecting the electronic control module 5 with the housing module 1, the touch screen module 2, the first acquisition module 3, the second acquisition module 8 and the like, and is used for supplying power or transmitting an electric signal. The composite spectrum acquisition system can realize the following functions under the overall control of the touch screen module 2 and the electric control module 5:

1. referring to fig. 10, when the second collection module 8 is not operated (the second light source 835 is not energized) and the first collection module 3 is operated (when the first light source 35 and the first optical fiber 34 are opposite to the first collection through hole 36A), the functions of stationary diffuse reflection and/or diffuse transmission for collecting the reference, calibrating and collecting the object to be measured are realized through the first collection module 3. Referring to fig. 11, when the first collection module 3 is not operated (the first light source 35 is not energized) and the second collection module 8 is operated (the second light source 835 and the second optical fiber 834 are opposite to the second collection through hole 836A), the functions of diffuse reflection and/or diffuse transmission for collecting the reference, calibration and collecting the object to be measured are realized.

2. The first collection module 3 and the second collection module 8 can operate simultaneously (i.e. the first light source 35, the first optical fiber 34 are opposite to the first collection through hole 36A, the second light source 835, the second optical fiber 834 are opposite to the second collection through hole 836A), and the reference and calibration are respectively collected. The functions of collecting the objects to be detected from two sides can be realized by singly and alternately carrying out diffuse reflection and/or diffuse transmission collection according to the requirements.

3. Referring to fig. 12, when the transmission detection of the object to be detected is required, a transmission collection light path (in this case, the second light source 835 is opposite to the second transmission through hole 836B via the first transmission through hole 36B) may be formed by using the second light source 835 on the second collection module 8, the second dynamic rotation component 836, and the first optical fiber 34 on the first collection module 3. The spectrum of the object to be detected can be collected after the air reference is adopted and the transmission standard sheet 8369 is used for calibration.

4. The second acquisition module 8 is also provided with a triggering sensor 84 to sense the position, with a certain automatic adjustment function.

5. Timing collection is achieved by rotating the second dynamic rotating assembly 836 and the first rotating assembly 36 to prevent long term irradiation from affecting the moisture and temperature of the sample.

6. The simultaneous acquisition may also be achieved by separating the ends of the first optical fiber 34 and the second optical fiber 834 from one another by a spectrometer for simultaneous acquisition requiring two channels.

The application discloses a working method based on a composite spectrum acquisition system, which comprises the following steps:

acquiring a control instruction;

selecting a working mode matched with the control instruction according to the acquired control instruction;

according to the selected working module, the first acquisition module 3 and/or the second acquisition module 8 are correspondingly controlled;

wherein, the working mode includes at least three working states:

in the first working state, the first light source 35 is in an on state, and the first light source 35 and the first optical fiber 34 are opposite to the first collecting through hole 36A, and the first optical fiber 834 is configured to receive the light that is diffusely reflected by the object to be detected and enters the first collecting through hole 36A, so as to realize diffuse reflection and/or diffuse transmission collection;

in the second working state, the second light source 835 is in an on state, and the second light source 835 and the second optical fiber 834 are opposite to the second collecting through hole 836A, where the second optical fiber 834 is configured to receive light after being diffusely reflected by the object to be measured and entering the second collecting through hole, so as to realize diffuse reflection and/or diffuse transmission collection;

in the third working state, the second light shielding column 8364 shields the second optical fiber 34, the first light shielding column 364 shields the first light source 35, the second light source 835 is in an on state, and the first light source 35 is in an off state; the light emitted by the second light source 835 enters the first optical fiber 34 through the second transmission through hole 836B, the object to be measured and the first transmission through hole 36B, so as to realize diffuse transmission collection.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the disclosed subject matter.

Claims (9)

1. A composite spectrum acquisition system, comprising:

the shell module is provided with an object placing platform for placing objects to be tested;

the first acquisition module is fixedly arranged in the shell module and comprises a first bracket and a first rotating assembly capable of rotating relative to the first bracket, and the first rotating assembly is positioned between the first bracket and the object to be detected; the first bracket is provided with a first optical fiber and a first light source, and the first rotating assembly comprises a first rotating disc main body, a first acquisition through hole and a first transmission through hole which are arranged on the first rotating disc main body; the first rotary disk main body is provided with a first light shielding column for sealing the first light source when the first optical fiber is opposite to the first transmission through hole;

the second acquisition module is movably arranged in the shell module and is opposite to the first acquisition module; the second acquisition module comprises a second bracket and a second rotating assembly capable of rotating relative to the second bracket, and the second rotating assembly is positioned between the second bracket and the object to be detected; the second bracket is provided with a second optical fiber and a second light source, and the second rotating assembly comprises a second rotating disc main body, a second acquisition through hole and a second transmission through hole which are arranged on the second rotating disc main body; the second rotary disk main body is provided with a second light shielding column for sealing the second optical fiber when the second light source is opposite to the second transmission through hole;

the spectrum acquisition system is connected with the first optical fiber and the second optical fiber respectively;

the composite spectrum acquisition system has at least three working states:

in a first working state, the first light source is in an on state, the first light source and the first optical fiber are opposite to the first acquisition through hole, and the first optical fiber is used for receiving light which is diffusely reflected by an object to be detected and enters the first acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a second working state, the second acquisition module is moved to one side of the object to be detected, the second light source is in an on state, the second light source and the second optical fiber are opposite to the second acquisition through hole, and the second optical fiber is used for receiving light which is diffusely reflected by the object to be detected and enters the second acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a third working state, the second acquisition module is moved to the state that the second light source and the first optical fiber are oppositely arranged; the second shading column shades the second optical fiber, the first shading column shades the first light source, the second light source is in an on state, and the first light source is in an off state; the light emitted by the second light source enters the first optical fiber through the second transmission through hole, the object to be detected and the first transmission through hole, so that transmission acquisition is realized;

the first bracket is provided with a first Hall sensor, and one side of the first rotary disk main body facing the first bracket is provided with a first magnet column and a first magnet so as to control the rotation angle of the first rotary disk main body; and/or the number of the groups of groups,

the second support is provided with a second Hall sensor, and the second rotary disk main body is provided with a second magnet column and a second magnet on one side facing the second support so as to control the rotation angle of the second rotary disk main body.

2. The composite spectrum acquisition system of claim 1 wherein the timed acquisition is achieved by rotating the second dynamic rotating assembly and the first rotating assembly to prevent long term irradiation from affecting moisture and temperature of the sample.

3. The composite spectrum acquisition system of claim 1, wherein three operating states of the composite spectrum acquisition system are alternately and/or periodically performed.

4. The composite spectrum acquisition system of claim 1, wherein the spectrum acquisition system comprises two spectrometer modules, the input ends of the two spectrometer modules being connected to the first optical fiber and the second optical fiber, respectively; the first operating state and the second operating state can be performed simultaneously.

5. The composite spectrum acquisition system according to claim 1, further comprising a driving mechanism for driving the second acquisition module to move, wherein the driving mechanism comprises a lifting driving module for driving the second acquisition module to move along a direction perpendicular to an axis of the second rotating disk main body, and the second rotating disk main body is provided with a triggering sensor at a side facing the object to be detected.

6. The composite spectrum acquisition system of claim 1 wherein the first light source is located radially outward of the first optical fiber; the second light source is located radially inward of the first optical fiber.

7. The composite spectrum acquisition system of claim 1 wherein the first light-shielding column extends from the first rotating disk body toward the first support; and/or the number of the groups of groups,

the second light shielding column extends from the second rotary disk main body towards the direction of the second bracket.

8. The composite spectrum acquisition system of claim 1 wherein the first optical fiber and the second optical fiber are two branches of a pair of two optical fibers.

9. A method of operating a composite spectrum acquisition system according to any one of claims 1 to 8, comprising the steps of:

acquiring a control instruction;

selecting a working mode matched with the control instruction according to the acquired control instruction;

according to the selected working module, the first acquisition module and/or the second acquisition module are correspondingly controlled;

wherein, the working mode includes at least three working states:

in a first working state, the first light source is in an on state, the first light source and the first optical fiber are opposite to the first acquisition through hole, and the first optical fiber is used for receiving light which is diffusely reflected by an object to be detected and enters the first acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a second working state, the second light source is in an on state, the second light source and the second optical fiber are opposite to the second acquisition through hole, and the second optical fiber is used for receiving light which is diffusely reflected by an object to be detected and enters the second acquisition through hole, so that diffuse reflection and/or diffuse transmission acquisition is realized;

in a third working state, the second shading column shades the second optical fiber, the first shading column shades the first light source, the second light source is in an on state, and the first light source is in an off state; and light emitted by the second light source enters the first optical fiber through the second transmission through hole, the object to be detected and the first transmission through hole, so that transmission collection is realized.