Spectrometer

Abstract

The utility model discloses a spectrograph, which comprises a first mounting seat and a second mounting seat capable of moving relative to the first mounting seat, one of a light source assembly and a detector assembly is at least partially overlapped with the axial projection of the first mounting seat, and the other one is mounted on the second mounting seat; the third mounting seat can move along the first direction relative to the first mounting seat and is used for mounting the monochromator assembly; a central connection part; the first connecting rod is hinged with the first mounting seat and the central connecting part; the second connecting rod is hinged with the second mounting seat and the central connecting part; the third connecting rod is hinged with the third mounting seat and the central connecting part; the fourth connecting rod is hinged to the first mounting base, the second mounting base is movably mounted on the fourth connecting rod, the third connecting rod is connected with the fourth connecting rod through the connecting sliding block, and the third connecting rod is perpendicular to the fourth connecting rod. According to the spectrograph provided by the embodiment of the utility model, the position of any one of the light source assembly and the detector assembly can be fixed in the adjusting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical device technical field more particularly, relate to a kind of spectrometer. BACKGROUND

[0002] Spectrometer includes light source assembly, monochromator assembly and detector assembly, light emitted by light source is spectrally analyzed by monochromator and obtains monochromatic light, and sample to be measured will absorb monochromatic light, and detector detects the light signal before and after the absorption of sample to be measured, and the composition, structure of sample to be measured can be analyzed and measured by analyzing two kinds of signals.

[0003] In the spherical bent crystal spectrometer, the reflecting surface of the bent crystal is spherical, the diameter of the Loran circle is equal to the radius of the bent crystal, and the center of the spherical surface of the bent crystal is located on the Loran circle, and the exit point of the light source is located on the Loran circle, the exit light passes through the bent crystal, and the light satisfying the Bragg condition is reflected by the bent crystal and focused at the focal point of the Loran circle, and the sample to be measured is placed at the focal point, and the light beam passes through the sample to be measured and is detected by the detector to obtain the spectrum.

[0004] In the working process of the spectrometer, in order to obtain monochromatic light of different energy for detecting sample to be measured, it is necessary to adjust the relative positions of the light source assembly, the monochromator assembly and the detector assembly. During the adjustment process, it is necessary to ensure that the exit point, the focal point and the center of the spherical surface of the bent crystal are always located on the Loran circle, and at the same time, the exit point and the focal point should be symmetrically arranged on both sides of the bent crystal with the normal line of the center of the spherical surface of the bent crystal as the symmetric axis.

[0005] In the related art, the relative positions of the light source assembly, the monochromator assembly and the detector assembly can be adjusted only by moving the light source assembly, the monochromator assembly and the detector assembly together, and it is difficult to use a light source assembly or a detector assembly with large mass. UTILITY MODEL CONTENT

[0006] The utility model aims at solving one of the technical problems existing in the prior art. Therefore, one object of the utility model is to provide a spectrometer, which only needs to move the monochromator assembly and the detector assembly or move the monochromator assembly and the light source assembly to adjust the relative positions of the light source assembly, the monochromator assembly and the detector assembly, and it is convenient to use a light source assembly or a detector assembly with large mass.

[0007] The utility model discloses a spectrum instrument, comprising: light source assembly, detector assembly and monochromator assembly, first mounting seat, one of light source assembly and detector assembly with the axial projection of first mounting seat at least partially coincides, second mounting seat, second mounting seat relative to first mounting seat can move, and second mounting seat is used for installing another of light source assembly and detector assembly, third mounting seat, third mounting seat relative to first mounting seat is movable along first direction, and third mounting seat is used for installing monochromator assembly, and first direction is parallel with the arrangement direction of first mounting seat and third mounting seat, center connecting portion, center connecting portion does the circular arc motion around first mounting seat, first connecting rod, first mounting seat and center connecting portion are hinged with first connecting rod respectively, second connecting rod, second mounting seat and center connecting portion are hinged with second connecting rod respectively, third connecting rod, third mounting seat and center connecting portion are hinged with third connecting rod respectively, and the spacing of first mounting seat, second mounting seat and third mounting seat is equal with center connecting portion, fourth connecting rod, fourth connecting rod is hinged with first mounting seat, and second mounting seat is movably installed on fourth connecting rod along the extension direction of fourth connecting rod, and third connecting rod is connected with fourth connecting rod through connecting sliding block, and connecting sliding block is movable relative to fourth connecting rod along the extension direction of third connecting rod and is movable relative to third connecting rod along the extension direction of fourth connecting rod, and the extension direction of third connecting rod is perpendicular with the extension direction of fourth connecting rod.

[0008] The spectrum instrument can fix the position of any one of the light source assembly and the detector assembly, and only needs to move the monochromator assembly and the detector assembly or move the monochromator assembly and the light source assembly, so that the relative positions of the light source assembly, the monochromator assembly and the detector assembly can be adjusted, and it is convenient to adopt a light source assembly or a detector assembly with large mass.

[0009] In addition, the spectrum instrument according to the above-mentioned embodiments of the utility model can also have the following additional technical features:

[0010] According to some embodiments of the utility model, the connecting sliding block is provided with a first sliding groove and a second sliding groove perpendicular to each other, the third connecting rod is provided with a first sliding rail matched with the first sliding groove, the fourth connecting rod is provided with a second sliding rail matched with the second sliding groove, and the connecting sliding block is slidably installed on the first sliding rail and the second sliding rail.

[0011] According to some embodiments of the utility model, the spectrum instrument comprises a first arc-shaped guide rail extending along the circumference of the first mounting seat, and the center connecting portion is slidably installed on the first arc-shaped guide rail.

[0012] According to some embodiments of the present application, the spectrometer comprises a second arc-shaped guide rail extending along the circumference of the first mounting base, and the fourth connecting rod is slidably mounted on the second arc-shaped guide rail.

[0013] According to some embodiments of the present application, the first connecting rod, the second connecting rod and the third connecting rod each comprise a first rod portion and a second rod portion connected together, and the first rod portion is hingedly connected to the central connecting portion.

[0014] According to some embodiments of the present application, the spectrometer comprises a first straight guide rail extending along the first direction, and the third mounting base is slidably mounted on the first straight guide rail.

[0015] According to some embodiments of the present application, the spectrometer comprises a telescopic rod, the second mounting base and the third mounting base are respectively hingedly connected to the telescopic rod, and the detector assembly or the light source assembly at the second mounting base is mounted on the telescopic rod and at least partially overlaps with the axial projection of the second mounting base.

[0016] According to some embodiments of the present application, the spectrometer comprises a driving assembly connected to the telescopic rod to drive the telescopic rod to perform telescopic movement.

[0017] According to some embodiments of the present application, the monochromator assembly comprises a rotary table and a plurality of different monochromators, the plurality of monochromators are mounted on the rotary table at intervals along the circumference of the rotary table, and the rotary table is rotatably mounted on the third mounting base.

[0018] According to some embodiments of the present application, the spectrometer comprises a driving assembly connected to the third mounting base to drive the third mounting base to move along the first direction, or the driving assembly is connected to the central connecting portion to drive the central connecting portion to perform circular arc movement around the first mounting base, or the driving assembly is connected to the fourth connecting rod to drive the fourth connecting rod to perform circular arc movement around the first mounting base, or the driving assembly is connected to the connecting sliding block to drive the connecting sliding block to move along the extension direction of the third connecting rod, or the driving assembly is connected to the connecting sliding block to drive the connecting sliding block to move along the extension direction of the fourth connecting rod.

[0019] According to some embodiments of the present application, the spectrometer comprises a base plate, one of the light source assembly and the detector assembly is fixedly arranged on the base plate with the first mounting base, and the second mounting base and the third mounting base are movably mounted on the base plate.

[0020] Additional aspects and advantages of the present application will be given in part in the following description and part will become apparent to those skilled in the art from the following description, or can be learned by the practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 is a light path schematic diagram of a spectrometer according to an embodiment of the present application;

[0023] Figure 2 is a top view of a spectrometer according to an embodiment of the present application;

[0024] Figure 3 is a structural schematic diagram of a spectrometer according to an embodiment of the present application, wherein a first sliding groove is shown;

[0025] Figure 4 is a structural schematic diagram of a spectrometer according to an embodiment of the present application, wherein the first sliding groove is not shown.

[0026] REFERENCE NUMERALS:

[0027] Spectrometer 100;

[0028] Substrate 10; first mounting seat 11; light source assembly 12;

[0029] Second mounting seat 21; detector assembly 22; detector 221; sample to be measured 222;

[0030] Third mounting seat 31; monochromator assembly 32; turntable 321; monochromator 322;

[0031] Center connecting portion 40;

[0032] First connecting rod 50; first rod portion 51; second rod portion 52;

[0033] Second connecting rod 60;

[0034] Third connecting rod 70; first sliding rail 71;

[0035] Fourth connecting rod 80; second sliding rail 81;

[0036] Connecting sliding block 91; first sliding groove 911; second sliding groove 912;

[0037] First arc-shaped guide rail 92; second arc-shaped guide rail 93; first straight guide rail 94; driving assembly 95;

[0038] Telescopic rod 96; mounting plate 961; second straight guide rail 962; first direction F1. DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "up", "down", "top", "bottom", "inside", "outside", "thickness", "axial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0041] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them, the first feature "above", "above" and "above" the second feature include the first feature being directly above and diagonally above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0042] The spectrometer 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0043] Reference Figures 1-4 As shown, the spectrometer 100 according to an embodiment of the present invention may include: a light source assembly 12, a detector assembly 22, a monochromator assembly 32, a first mounting seat 11, a second mounting seat 21, a third mounting seat 31, a central connecting portion 40, a first connecting rod 50, a second connecting rod 60, a third connecting rod 70 and a fourth connecting rod 80.

[0044] Specifically, one of the light source assembly 12 and the detector assembly 22 is at least partially aligned with the axial projection of the first mounting seat 11, such that the emission point of the light source assembly 12 or the focal point of the detector assembly 22 is located on one axial side of the first mounting seat 11. This allows the light source assembly 12, the detector assembly 22, and the monochromator assembly 32 to be located in the same plane. The second mounting seat 21 is movable relative to the first mounting seat 11 and is used to mount the other of the light source assembly 12 and the detector assembly 22. The third mounting seat 31 is movable relative to the first mounting seat 11 along the first direction F1 and is used to mount the monochromator assembly 32.

[0045] The "light" in the spectrometer 100 can be visible light or invisible light, for example, the light is invisible light such as X-ray, and the spectrometer 100 can be an X-ray absorption spectrometer, etc. The light source assembly 12 can include a light source and a bracket for fixing the light source, etc. The monochromator assembly 32 can include a monochromator 322 and a bracket for fixing the monochromator 322, etc. The detector assembly 22 can include a detector 221 and a bracket for fixing the detector 221, etc. The detector assembly 22 can also include a sample 222 to be measured.

[0046] For example, in some embodiments, as shown in Figures 1-2 The spectrometer 100 is an X-ray absorption spectrometer, and during the operation of the spectrometer 100, light is emitted from the light source assembly 12 to the monochromator assembly 32, and the light is reflected by the monochromator 322 to the sample 222 to be measured. The monochromator 322 can include a bent crystal or the like to reflect the light. The sample 222 to be measured will absorb the light, and the light emitted to the sample 222 to be measured will pass through the sample 222 to be measured and then be emitted to the detector 221. The light signal after being absorbed by the sample 222 to be measured is detected by the detector 221. The light path of the above-mentioned light is shown by arrows in Figure 1 The light is emitted from the exit point A of the light source to the spherical center B of the monochromator 322 and then to the focal point C. The sample 222 to be measured can be placed between the detector 221 and the monochromator 322, as shown in Figure 2

[0047] The axis of the first mounting seat 11 is parallel to the extension direction of the first mounting seat 11 and passes through the hinge center of the first mounting seat 11 and other hinge components. For example, in some embodiments, as shown in Figures 1-2 The projection of the light source assembly 12 and the first mounting seat 11 in the up-down direction coincides, so that the exit point A of the light source is located on the upper side of the first mounting seat 11.

[0048] The light source assembly 12 or the detector assembly 22 can be installed on the fixed part of the first mounting seat 11, or the light source assembly 12 or the detector assembly 22 can be independently installed relative to the first mounting seat 11, and the installation mode is flexible and optional. In the embodiment in which the light source assembly 12 or the detector assembly 22 is independently installed relative to the first mounting seat 11, the independence of the light source assembly 12 or the detector assembly 22 is better ensured, so that the light source assembly 12 or the detector assembly 22 is not easily affected by the moving components in the spectrometer 100.

[0049] For example, in some embodiments, as shown in Figure 2 ​As shown, the spectrometer 100 comprises a substrate 10, a first mount 11 mounted on the substrate 10, and a light source assembly 12 comprising a light source and a mounting bracket, the light source being mounted on the substrate 10 through the mounting bracket so as to be located above the first mount 11, the light source assembly 12 and the first mount 11 being independently mounted on the substrate 10, thereby ensuring the independence of the light source assembly 12 and preventing the light source assembly 12 from being disturbed by the moving parts connected to the first mount 11.

[0050] In some embodiments, the detector assembly 22 comprises a detector 221 and a mounting bracket, the detector 221 being mounted on the substrate 10 through the mounting bracket so as to be located above the first mount 11, the detector assembly 22 and the first mount 11 being independently mounted on the substrate 10, thereby ensuring the independence of the detector assembly 22 and preventing the detector assembly 22 from being disturbed by the moving parts connected to the first mount 11.

[0051] The first direction F1 is parallel to the arrangement direction of the monochromator assembly 32 and the light source assembly 12, and can be the direction in which the light emitted by the light source exits. For example, in embodiments in which the axial projection of the detector assembly 22 on the first mount 11 at least partially coincides with the first mount 11, the first direction F1 is parallel to the arrangement direction of the monochromator assembly 32 and the detector assembly 22. Figure 1 The first direction F1 is parallel to the arrangement direction of the monochromator assembly 32 and the light source assembly 12, and can be the direction in which the light emitted by the light source exits. For example, in embodiments in which the axial projection of the detector assembly 22 on the first mount 11 at least partially coincides with the first mount 11, the first direction F1 is parallel to the arrangement direction of the monochromator assembly 32 and the detector assembly 22.

[0052] The second mount 21 and the third mount 31 are movable relative to the first mount 11, and can fix the position of the first mount 11, thereby fixing the position of the light source assembly 12 or the detector assembly 22 near the first mount 11, so as to cause the monochromator assembly 32 and the detector assembly 22 to move relative to the light source assembly 12, or cause the monochromator assembly 32 and the light source assembly 12 to move relative to the detector assembly 22.

[0053] The first mount 11 and the central connecting part 40 are hingedly connected to the first connecting rod 50, so that the central connecting part 40 moves in an arc around the first mount 11 through the first connecting rod 50. The second mount 21 and the central connecting part 40 are hingedly connected to the second connecting rod 60, so that the second mount 21 moves in an arc around the central connecting part 40. The third mount 31 and the central connecting part 40 are hingedly connected to the third connecting rod 70, so that the third mount 31 moves in an arc around the central connecting part 40. In the present application, the hinged connection between two components can be achieved by a bearing or the like.

[0054] The distance between the first mounting seat 11 and the center connecting part 40, the distance between the second mounting seat 21 and the center connecting part 40, and the distance between the third mounting seat 31 and the center connecting part 40 are equal to each other, so that the light source assembly 12, the monochromator assembly 32, and the detector assembly 22 can always be located on the Loran circle L with the center connecting part 40 as the center during the movement of the second mounting seat 21 and the third mounting seat 31 relative to the first mounting seat 11. For example, as shown in FIG. 2, the first mounting seat 11 is fixed, and the exit point A, the spherical center B of the monochromator 322, and the focal point C are always located on the Loran circle L during the movement of the third mounting seat 31 along the first direction F1. Figure 1

[0055] The fourth connecting rod 80 is hingedly connected to the first mounting seat 11, so that the fourth connecting rod 80 can make an arc movement around the first mounting seat 11. The second mounting seat 21 is movably mounted on the fourth connecting rod 80 along the extension direction of the fourth connecting rod 80, so that the second mounting seat 21 can not only move along the extension direction of the fourth connecting rod 80, but also make an arc movement around the first mounting seat 11 with the fourth connecting rod 80.

[0056] The third connecting rod 70 is connected to the fourth connecting rod 80 through a connecting slider 91. The connecting slider 91 is movable relative to the third connecting rod 70 along the extension direction of the fourth connecting rod 80, so that the part of the third connecting rod 70 connected to the connecting slider 91 can move along the extension direction of the fourth connecting rod 80. The connecting slider 91 is movable relative to the fourth connecting rod 80 along the extension direction of the third connecting rod 70, so that the part of the fourth connecting rod 80 connected to the connecting slider 91 can move along the extension direction of the third connecting rod 70.

[0057] The extension direction of the third connecting rod 70 is perpendicular to the extension direction of the fourth connecting rod 80, so that the third connecting rod 70 and the fourth connecting rod 80 are always perpendicular to each other during the movement. In combination with the connection relationship of the above-mentioned other components, the first mounting seat 11 and the second mounting seat 21 can be always symmetrically arranged about the third connecting rod 70 during the movement of the second mounting seat 21 and the third mounting seat 31 relative to the first mounting seat 11. For example, as shown in FIG. 2, the exit point A and the focal point C can be always symmetrically arranged about the spherical center normal of the monochromator 322. Figure 1

[0058] In some related technologies, due to the complex connection relationship among the light source assembly, the monochromator assembly, and the detector assembly, the relative positions of the light source assembly, the monochromator assembly, and the detector assembly can be adjusted only by moving the light source assembly, the monochromator assembly, and the detector assembly together. Some light source assemblies and detector assemblies have large mass and are bulky, which leads to the difficulty in linkage of the light source assembly, the monochromator assembly, and the detector assembly, so that the light source assembly or the detector assembly with large mass cannot be used in the related technologies.​​

[0059] The present application can fix the first mounting base 11, move the second mounting base 21 and the third mounting base 31 relative to the first mounting base 11, i.e. fix the light source assembly 12 or the detector assembly 22 near the first mounting base 11, move the detector assembly 22 and the monochromator assembly 32 relative to the light source assembly 12, or move the light source assembly 12 and the monochromator assembly 32 relative to the detector assembly 22, and adjust the relative positions of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32. During the operation of the spectrometer 100, the light source assembly 12 or the detector assembly 22 does not need to participate in the linkage with other components, and thus a light source assembly 12 or a detector assembly 22 with a larger mass can be used.

[0060] During the movement of the second mounting base 21 and the third mounting base 31 relative to the first mounting base 11, the light source assembly 12, the monochromator assembly 32 and the detector assembly 22 are always located on the Loran circle L with the center connecting part 40 as the center, and the first mounting base 11 and the second mounting base 21 can be always symmetrically arranged about the third connecting rod 70, thus meeting the required conditions for adjusting the relative positions of the light source assembly 12, the monochromator assembly 32 and the detector assembly 22 in the spectrometer 100.

[0061] The spectrometer 100 according to the embodiments of the present application can fix the position of any one of the light source assembly 12 and the detector assembly 22, and only need to move the monochromator assembly 32 and the detector assembly 22 or move the monochromator assembly 32 and the light source assembly 12 to adjust the relative positions of the light source assembly 12, the monochromator assembly 32 and the detector assembly 22, thus facilitating the use of a light source assembly 12 or a detector assembly 22 with a larger mass.

[0062] For the convenience of understanding, the following describes an embodiment in which the axial projection of the first mounting base 11 at least partially coincides with the light source assembly 12, and the second mounting base 21 is provided with the detector assembly 22, and the embodiment in which the axial projection of the first mounting base 11 at least partially coincides with the detector assembly 22, and the second mounting base 21 is provided with the light source assembly 12 can also be obtained according to the following description.

[0063] In some embodiments of the present application, as shown in Figures 2-3 The connecting sliding block 91 is provided with a first sliding groove 911 and a first sliding groove 912 which are perpendicular to each other, the third connecting rod 70 is provided with a first sliding rail 71 which is matched with the first sliding groove 911, the fourth connecting rod 80 is provided with a second sliding rail 81 which is matched with the first sliding groove 912, and the connecting sliding block 91 is slidably mounted on the first sliding rail 71 and the second sliding rail 81.

[0064] The connecting sliding block 91 moves along the first sliding rail 71 through the first sliding groove 911 to move the connecting sliding block 91 and the fourth connecting rod 80 along the extension direction of the third connecting rod 70, and the connecting sliding block 91 moves along the second sliding rail 81 through the first sliding groove 912 to move the connecting sliding block 91 and the third connecting rod 70 along the extension direction of the fourth connecting rod 80, so that the third connecting rod 70 and the fourth connecting rod 80 are always perpendicular to each other during movement and are not easy to deviate, thereby improving the working accuracy of the spectrometer 100.

[0065] In some embodiments of the utility model, as shown in Figures 2-4 The spectrometer 100 includes a first arc-shaped guide rail 92, the first arc-shaped guide rail 92 extends along the circumference of the first mounting base 11, and the central connecting part 40 is slidably installed on the first arc-shaped guide rail 92 to provide support for the central connecting part 40 through the first arc-shaped guide rail 92, so that the movement of the central connecting part 40 is more stable, thereby improving the overall working stability of the spectrometer 100. Moreover, the structure of the first arc-shaped guide rail 92 is relatively simple and easy to implement.

[0066] In some embodiments of the utility model, as shown in Figures 2-4 The spectrometer 100 includes a second arc-shaped guide rail 93, the second arc-shaped guide rail 93 extends along the circumference of the first mounting base 11, and the fourth connecting rod 80 is slidably installed on the second arc-shaped guide rail 93 to provide support for the fourth connecting rod 80 through the second arc-shaped guide rail 93, thereby supporting the detector assembly 22 through the fourth connecting rod 80, so that the movement of the detector assembly 22 is more stable, thereby improving the overall working stability of the spectrometer 100. Moreover, the structure of the second arc-shaped guide rail 93 is relatively simple and easy to implement.

[0067] In some embodiments, as shown in Figures 3-4 The first connecting rod 50, the second connecting rod 60 and the third connecting rod 70 each include a first rod part 51 and a second rod part 52 connected together, the first rod part 51 is hinged to the central connecting part 40, the second rod part 52 of the first connecting rod 50 is hinged to the first mounting base 11, the second rod part 52 of the second connecting rod 60 is hinged to the second mounting base 21, and the second rod part 52 of the third connecting rod 70 is hinged to the third mounting base 31. By dividing the first connecting rod 50, the second connecting rod 60 and the third connecting rod 70, it is convenient to use smaller waste materials to connect the first connecting rod 50, the second connecting rod 60 and the third connecting rod 70, realize waste utilization, and have better economy.

[0068] The connecting portion of the first rod portion 51 and the second rod portion 52 can be superimposed to adjust the height difference of the central connecting portion 40 and each mounting seat (the first mounting seat 11, the second mounting seat 21 or the third mounting seat 31), so as to change the installation height of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32, and make the light source assembly 12, the detector assembly 22 and the monochromator assembly 32 be located at the same height, and the light path be more accurate. Of course, the installation height of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32 can also be adjusted by adding a pad or the like on the mounting seat.

[0069] In some embodiments, the first rod portion 51 can be hinged with the central connecting portion 40, the second rod portion 52 can be hinged with the mounting seat, and then the first rod portion 51 and the second rod portion 52 are connected, so as to reduce the mutual constraint influence of each connecting component in the spectrometer 100 in the manufacturing process, and the spectrometer 100 is more convenient to manufacture.

[0070] In some embodiments of the utility model, as shown in Figure 2 The spectrometer 100 comprises a first linear guide rail 94 extending along a first direction F1, and the third mounting seat 31 is slidably mounted on the first linear guide rail 94 to provide support for the third mounting seat 31 through the first linear guide rail 94, and then the monochromator assembly 32 is supported through the third mounting seat 31, so that the movement of the monochromator assembly 32 is more stable, and then the working stability of the spectrometer 100 as a whole is improved.

[0071] In some embodiments of the utility model, as shown in Figures 2-4 The spectrometer 100 comprises a telescopic rod 96, the second mounting seat 21 and the third mounting seat 31 are hinged with the telescopic rod 96 respectively, and the detector assembly 22 is mounted on the telescopic rod 96 and the axial projection of the detector assembly 22 at least partially coincides with the second mounting seat 21.

[0072] The axial direction of the second mounting seat 21 is parallel to the extension direction of the second mounting seat 21 itself and passes through the hinge center of the second mounting seat 21 and other hinged components, and the detector assembly 22 is indirectly mounted on the second mounting seat 21 through the telescopic rod 96. For example, in some embodiments, as shown in Figures 2-3 The detector assembly 22 is mounted on the telescopic rod 96 and the projection of the detector assembly 22 along the up-down direction partially coincides with the second mounting seat 21.

[0073] During the movement of the second mount 21 and the third mount 31 relative to the first mount 11, the relative position and distance of the second mount 21 and the third mount 31 change, and the telescopic rod 96 is hinged to the second mount 21 and the third mount 31 respectively to connect the second mount 21 and the third mount 31, which facilitates the directivity of the detector assembly 22 at the second mount 21, the detector 221 in the detector assembly 22 always points to the spherical center of the monochromator 322 at the third mount 31, and the light reflected by the monochromator 322 can be more accurately shot to the detector 221, and the working precision of the spectrometer 100 is higher.

[0074] In some embodiments, as shown in Figure 3 The telescopic rod 96 includes a mounting plate 961 and a second linear guide rail 962, one end of the mounting plate 961 is hinged to the second mount 21 and the other end is slidably mounted on the second linear guide rail 962, and the second linear guide rail 962 is hinged to the third mount 31. The telescopic rod 96 can be telescoped through the mounting plate 961 and the second linear guide rail 962, so that the detector assembly 22 always points to the monochromator assembly 32 during the movement and is not easy to deviate, which facilitates the improvement of the working precision of the spectrometer 100.

[0075] In some embodiments of the utility model, as shown in Figure 2 The monochromator assembly 32 includes a turntable 321 and a plurality of different monochromators 322, the plurality of monochromators 322 are installed on the turntable 321 in a circumferential direction, and the turntable 321 is rotatably mounted on the third mount 31. Different monochromators 322 cover different energy ranges, and the plurality of different monochromators 322 can be different in crystal orientation, diameter, material, etc.

[0076] The turntable 321 can switch different monochromators 322 to cooperate with the light source assembly 12 and the detector assembly 22, and the combination of the plurality of different monochromators 322 and the turntable 321 not only can reduce the error influence caused by manually switching the monochromators 322, but also does not need to turn off the light source to manually switch the monochromators 322, which greatly shortens the test time of the spectrometer 100. Moreover, the light source needs to reach a stable state after being turned on for a period of time, and the present application does not need to turn on the light source multiple times, for example, different monochromators 322 are switched through the turntable 321 after the light source is turned on once, which can increase the use efficiency of the light source and prolong the service life of the light source.

[0077] The present application can manually drive each component to move, or driving components can be added to drive each component to move. For example, in some embodiments of the utility model, as shown in Figure 2As shown, the spectrometer 100 comprises a driving assembly 95 connected with the third mounting base 31 to drive the third mounting base 31 to move along the first direction F1, the third mounting base 31 moves to drive the second mounting base 21 to move through the cooperation of the first connecting rod 50, the second connecting rod 60, the third connecting rod 70, the fourth connecting rod 80 and the center connecting part 40 and the like, to adjust the relative positions of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32, and the driving is simple and fast.

[0078] Of course, the driving assembly 95 can also be connected with the center connecting part 40 to drive the center connecting part 40 to make an arc movement around the first mounting base 11, or the driving assembly 95 can be connected with the fourth connecting rod 80 to drive the fourth connecting rod 80 to make an arc movement around the first mounting base 11. The driving assembly 95 can also be connected with the connecting sliding block 91 to drive the connecting sliding block 91 to move along the extension direction of the third connecting rod 70, or to move along the extension direction of the fourth connecting rod 80, to drive the second mounting base 21 and the third mounting base 31 to move relative to the first mounting base 11, and the driving modes of the driving of the components in the present application are various.

[0079] In some embodiments, the driving assembly 95 is connected with the telescopic rod 96 to drive the telescopic rod 96 to make a telescopic movement. By changing the length of the telescopic rod 96 through the driving assembly 95, the relative positions and the spacing of the second mounting base 21 and the third mounting base 31 can be changed, and then the relative positions of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32 are adjusted through the cooperation of the first connecting rod 50, the second connecting rod 60, the third connecting rod 70, the fourth connecting rod 80 and the center connecting part 40 and the like, and the driving is simple and fast.

[0080] For example, in some embodiments, the driving assembly 95 comprises an electric control component, and the second straight line guide rail 962 is provided with the electric control component to control the sliding displacement of the mounting plate 961 on the second straight line guide rail 962.

[0081] It should be noted that the change amount of the length of the telescopic rod 96 is equal to the displacement of the third mounting base 31 moving along the first direction F1, so that the telescopic amount of the telescopic rod 96 can be driven and adjusted according to the displacement of the third mounting base 31 moving along the first direction F1, and the trajectories of the components in the spectrometer 100 are more controllable.

[0082] In some embodiments of the present application, as shown in Figure 2 As shown, the spectrometer 100 comprises a base plate 10, one of the light source assembly 12 and the detector assembly 22 is fixedly arranged on the base plate 10, and the second mounting base 21 and the third mounting base 31 are movably arranged on the base plate 10. Through the base plate 10, a stable working environment can be provided for the light source assembly 12, the detector assembly 22 and the monochromator assembly 32, so as to improve the working stability of the spectrometer 100.

[0083] The spectrometer 100 according to one embodiment of the present application is described in detail below with reference to the drawings, and it is to be understood that the following description is merely exemplary and is not to be construed as limiting the application.

[0084] As shown in the drawings, the spectrometer 100 according to one embodiment of the present application comprises a light source assembly 12, a detector assembly 22, a monochromator assembly 32, a base plate 10, a first mounting seat 11, a second mounting seat 21, a third mounting seat 31, and an extension rod 96. Figures 1-4 The light source assembly 12 comprises a light source and a mounting bracket, the light source is mounted on the mounting bracket, the mounting bracket and the first mounting seat 11 are mounted on the base plate 10, and the light source is located on the upper side of the first mounting seat 11.

[0085] The detector assembly 22 comprises a detector 221 and a sample 222 to be detected, and the detector assembly 22 is mounted on the extension rod 96, the extension rod 96 is telescopic and is hingedly connected with the second mounting seat 21 and the third mounting seat 31 respectively, and the projection part of the detector assembly 22 along the up-down direction coincides with the second mounting seat 21, so as to indirectly mount the detector assembly 22 on the second mounting seat 21.

[0086] The monochromator assembly 32 comprises a turntable 321 and a plurality of different monochromators 322, the plurality of monochromators 322 are mounted on the turntable 321 at intervals along the circumferential direction of the turntable 321, and the turntable 321 is rotatably mounted on the third mounting seat 31, so as to facilitate switching different monochromators 322 to cooperate with the light source assembly 12 and the detector assembly 22.

[0087] The spectrometer 100 further comprises a central connecting part 40, a first connecting rod 50, a second connecting rod 60, a third connecting rod 70, a fourth connecting rod 80, a connecting sliding block 91, a first arc-shaped guide rail 92, a second arc-shaped guide rail 93, a first straight guide rail 94, and a driving assembly 95.

[0088] The first arc-shaped guide rail 92 is mounted on the base plate 10 and extends along the circumferential direction of the central connecting part 40, the central connecting part 40 is slidably mounted on the first arc-shaped guide rail 92, and the central connecting part 40 and the first mounting seat 11 are hingedly connected with the first connecting rod 50 respectively, so that the central connecting part 40 moves along the first arc-shaped guide rail 92 in a circular arc motion around the first mounting seat 11.

[0089] The central connecting part 40 and the second mounting seat 21 are hingedly connected with the second connecting rod 60 respectively, and the central connecting part 40 and the third mounting seat 31 are hingedly connected with the third connecting rod 70 respectively. The distance between the central connecting part 40 and the first mounting seat 11, the distance between the central connecting part 40 and the second mounting seat 21, and the distance between the central connecting part 40 and the third mounting seat 31 are equal to each other.

[0090]

[0091] ​The fourth connecting rod 80 is hinged to the center connecting part 40, and the second mounting base 21 is movably mounted to the fourth connecting rod 80 along the extension direction of the fourth connecting rod 80. The second arc-shaped guide rail 93 is mounted to the base plate 10 and extends along the circumference of the center connecting part 40, and the fourth connecting rod 80 is slidably mounted to the second arc-shaped guide rail 93, so that the fourth connecting rod 80 moves along the second arc-shaped guide rail 93 in an arc motion around the first mounting base 11.

[0092] The third connecting rod 70 is connected to the fourth connecting rod 80 through a connecting slider 91, the connecting slider 91 has a first sliding groove 911 and a first sliding groove 912 perpendicular to each other, the third connecting rod 70 has a first sliding rail 71 matched with the first sliding groove 911, and the fourth connecting rod 80 has a second sliding rail 81 matched with the first sliding groove 912. The connecting slider 91 is movably arranged relative to the fourth connecting rod 80 along the extension direction of the third connecting rod 70 through the matching of the first sliding groove 911 and the first sliding rail 71, and the connecting slider 91 is movably arranged relative to the third connecting rod 70 along the extension direction of the fourth connecting rod 80 through the matching of the first sliding groove 912 and the second sliding rail 81, so that the third connecting rod 70 and the fourth connecting rod 80 are always perpendicular to each other during the motion and are not easy to deviate.

[0093] The first linear guide rail 94 is mounted to the base plate 10 and extends along the first direction F1, and the third mounting base 31 is slidably mounted to the first linear guide rail 94, the first direction F1 being parallel to the emission direction of the light source. The driving assembly 95 is connected to the third mounting base 31, and the driving assembly 95 is used to drive the third mounting base 31 to move along the first linear guide rail 94.

[0094] The light source assembly 12, the monochromator assembly 32 and the detector assembly 22 are always located on the Loran circle L with the center connecting part 40 as the center, and the first mounting base 11 and the second mounting base 21 can be always arranged symmetrically about the third connecting rod 70.

[0095] The first connecting rod 50 includes a first rod part 51 and a second rod part 52 connected to each other, the second connecting rod 60 includes a first rod part 51 and a second rod part 52 connected to each other, and the third connecting rod 70 includes a first rod part 51 and a second rod part 52 connected to each other. The first rod part 51 is hinged to the center connecting part 40, the second rod part 52 of the first connecting rod 50 is hinged to the first mounting base 11, the second rod part 52 of the second connecting rod 60 is hinged to the second mounting base 21, and the second rod part 52 of the third connecting rod 70 is hinged to the third mounting base 31, which is more economical.

[0096] The spectrometer 100 using the specific embodiment can be used to perform experiments such as X-ray absorption spectrum experiments in a state that the light source is fixedly arranged, and the stability of each component in the spectrometer 100 during the motion of the monochromator 322 and the detector 221 relative to the light source is good, and the working precision is high.

[0097] Other configurations and operations of the spectrometer 100 according to the embodiments of the present application are known to those skilled in the art, and thus will not be described in detail herein.

[0098] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0099] In the description of the present application, the description of the terms "embodiment", "specific embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0100] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A spectrometer, characterized by, The application relates to a monochromator assembly, comprising: a light source assembly, a detector assembly and a monochromator assembly; a first mounting seat, one of the light source assembly and the detector assembly at least partially coinciding with the axial projection of the first mounting seat; a second mounting seat, the second mounting seat being movable relative to the first mounting seat, the second mounting seat being used for mounting the other of the light source assembly and the detector assembly; a third mounting seat, the third mounting seat being movable relative to the first mounting seat along a first direction, the third mounting seat being used for mounting the monochromator assembly, the first direction being parallel to the arrangement direction of the first mounting seat and the third mounting seat; a central connecting part, the central connecting part making circular motion around the first mounting seat; a first connecting rod, the first mounting seat and the central connecting part being hinged to the first connecting rod respectively; a second connecting rod, the second mounting seat and the central connecting part being hinged to the second connecting rod respectively; a third connecting rod, the third mounting seat and the central connecting part being hinged to the third connecting rod respectively, the first mounting seat, the second mounting seat and the third mounting seat being equal in distance from the central connecting part; a fourth connecting rod, the fourth connecting rod being hinged to the first mounting seat, the second mounting seat being movably mounted on the fourth connecting rod along the extension direction of the fourth connecting rod, the third connecting rod being connected to the fourth connecting rod through a connecting sliding block, the connecting sliding block being movable relative to the fourth connecting rod along the extension direction of the third connecting rod and movable relative to the third connecting rod along the extension direction of the fourth connecting rod, the extension direction of the third connecting rod being perpendicular to the extension direction of the fourth connecting rod.

2. The optical spectrometer of claim 1, wherein, The connecting sliding block is provided with a first sliding groove and a second sliding groove which are perpendicular to each other, the third connecting rod is provided with a first sliding rail matched with the first sliding groove, the fourth connecting rod is provided with a second sliding rail matched with the second sliding groove, and the connecting sliding block is slidably mounted on the first sliding rail and the second sliding rail.

3. The optical spectrometer of claim 1, wherein, The application further relates to a first arc-shaped guide rail extending along the circumference of the first mounting seat, and the central connecting part is slidably mounted on the first arc-shaped guide rail.

4. The optical spectrometer of claim 1, wherein, The application further relates to a second arc-shaped guide rail extending along the circumference of the first mounting seat, and the fourth connecting rod is slidably mounted on the second arc-shaped guide rail.

5. The optical spectrometer of claim 1, wherein, The first connecting rod, the second connecting rod and the third connecting rod each comprise a first rod part and a second rod part connected to each other, and the first rod part is hinged to the central connecting part.

6. The optical spectrometer of claim 1, wherein, The application further relates to a first straight guide rail extending along the first direction, and the third mounting seat is slidably mounted on the first straight guide rail.

7. The optical spectrometer of claim 1, wherein, The application further relates to a telescopic rod, the second mounting seat and the third mounting seat being hinged to the telescopic rod respectively, and the detector assembly or the light source assembly at the second mounting seat is mounted on the telescopic rod and at least partially coincides with the axial projection of the second mounting seat.

8. The optical spectrometer of claim 7, wherein, The application further relates to a driving assembly connected to the telescopic rod to drive the telescopic rod to make telescopic motion.

9. The optical spectrometer of claim 1, wherein, The monochromator assembly comprises a turntable and a plurality of different monochromators, the plurality of monochromators are installed on the turntable in a circumferential direction of the turntable, and the turntable is rotatably installed on the third mounting base.

10. The optical spectrometer of claim 1, wherein, The driving assembly is connected with the third mounting base to drive the third mounting base to move in the first direction, or the driving assembly is connected with the central connecting part to drive the central connecting part to make circular arc motion around the first mounting base, or the driving assembly is connected with the fourth connecting rod to drive the fourth connecting rod to make circular arc motion around the first mounting base, or the driving assembly is connected with the connecting sliding block to drive the connecting sliding block to move in the extension direction of the third connecting rod, or the driving assembly is connected with the connecting sliding block to drive the connecting sliding block to move in the extension direction of the fourth connecting rod.

11. The optical spectrometer of claim 1, wherein, The monochromator assembly comprises a base plate, one of the light source assembly and the detector assembly is fixed to the base plate, and the second mounting base and the third mounting base are movably installed on the base plate.

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