Spectrometer

Abstract

The spectrograph 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 invention, 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 present invention relates to the technical field of optical devices, and more specifically, to a spectrometer. Background Art

[0002] The spectrometer includes a light source component, a monochromator component and a detector component. The light emitted by the light source is split by the monochromator to obtain monochromatic light. The sample to be tested will absorb the monochromatic light. The detector detects the light signals before and after the sample to be tested absorbs the light. By analyzing the two signals, the composition and structure of the sample to be tested can be analyzed and measured.

[0003] The reflecting surface of the curved crystal in the spherical curved crystal spectrometer is a spherical surface. The diameter of the Rowland circle L is equal to the radius of the curved crystal and the center of the spherical surface of the curved crystal is located on the Rowland circle L. The emission point of the light source is located on the Rowland circle L. The emitted light passes through the curved crystal. The light that meets the Bragg condition is reflected by the curved crystal and focused at the plane focus B of the Rowland circle L. The sample to be tested is placed at the focus B. After the light beam passes through the sample to be tested, it is detected by the detector to obtain the spectrum.

[0004] During the operation of the spectrometer, in order to obtain monochromatic light of different energies for detecting the sample to be tested, the relative positions of the light source assembly, the monochromator assembly and the detector assembly need to be adjusted. During the adjustment process, it is necessary to ensure that the emission point, the focus and the spherical center of the bent crystal are always located on the Rowland circle L, and at the same time, it is also necessary to ensure that the emission point and the focus are symmetrically arranged on both sides of the bent crystal with the normal line of the spherical center of the bent crystal as the symmetry axis.

[0005] In the related art, the light source assembly, the monochromator assembly and the detector assembly need to be moved together to adjust the relative positions of the light source assembly, the monochromator assembly and the detector assembly, which makes it difficult to use a light source assembly or a detector assembly with a large mass. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a spectrometer, wherein the relative positions of the light source assembly, the monochromator assembly and the detector assembly can be adjusted by simply moving the monochromator assembly and the detector assembly or the monochromator assembly and the light source assembly, so as to facilitate the use of a light source assembly or a detector assembly with a larger mass.

[0007] According to an embodiment of the present invention, a spectrometer comprises: 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 overlaps with the axial projection of the first mounting seat; a second mounting seat, the second mounting seat is movable relative to the first mounting seat, and the second mounting seat is used to mount the other of the light source assembly and the detector assembly; a third mounting seat, the third mounting seat is movable relative to the first mounting seat along a first direction, and the third mounting seat is used to mount the monochromator assembly, the first direction is parallel to the arrangement direction of the first mounting seat and the third mounting seat; a central connecting portion, the central connecting portion makes an arc motion around the first mounting seat; a first connecting rod, the first mounting seat and the central connecting portion are respectively hinged to the first connecting rod; A second connecting rod, wherein the second mounting seat and the central connecting portion are hinged to the second connecting rod respectively; a third connecting rod, wherein the third mounting seat and the central connecting portion are hinged to the third connecting rod respectively, and the first mounting seat, the second mounting seat and the third mounting seat are respectively spaced at equal distances from the central connecting portion; a fourth connecting rod, wherein the fourth connecting rod is hinged to the first mounting seat, and the second mounting seat is movably mounted on the fourth connecting rod along the extension direction of the fourth connecting rod, and the third connecting rod is connected to the fourth connecting rod through a connecting slider, and the connecting slider is 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, and the extension direction of the third connecting rod is perpendicular to the extension direction of the fourth connecting rod.

[0008] According to the spectrometer of the embodiment of the present invention, the position of any one of the light source assembly and the detector assembly can be fixed. The relative positions of the light source assembly, the monochromator assembly and the detector assembly can be adjusted by simply moving the monochromator assembly and the detector assembly or moving the monochromator assembly and the light source assembly, thereby facilitating the use of a light source assembly or a detector assembly with a larger mass.

[0009] In addition, the spectrometer according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to some embodiments of the present invention, the connecting slider 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 which cooperates with the first sliding groove, the fourth connecting rod is provided with a second sliding rail which cooperates with the second sliding groove, and the connecting slider can be slidably installed on the first sliding rail and the second sliding rail.

[0011] According to some embodiments of the present invention, the spectrometer includes a first arc-shaped guide rail, the first arc-shaped guide rail extends along the circumference of the first mounting seat, and the central connecting portion is slidably mounted on the first arc-shaped guide rail.

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

[0013] According to some embodiments of the present invention, the first connecting rod, the second connecting rod and the third connecting rod each include a first rod portion and a second rod portion connected to each other, and the first rod portion is hinged to the central connecting portion.

[0014] According to some embodiments of the present invention, the spectrometer includes a first linear guide rail extending along the first direction, and the third mounting seat is slidably mounted on the first linear guide rail.

[0015] According to some embodiments of the present invention, the spectrometer includes a retractable telescopic rod, the second mounting seat and the third mounting seat are respectively hinged to the telescopic rod, and the detector assembly or the light source assembly at the second mounting seat is mounted on the telescopic rod and at least partially overlaps with the axial projection of the second mounting seat.

[0016] According to some embodiments of the present invention, the spectrometer includes a driving assembly, wherein the driving assembly is connected to the telescopic rod to drive the telescopic rod to perform telescopic movement.

[0017] According to some embodiments of the present invention, the monochromator assembly includes a turntable and a plurality of different monochromators, wherein the plurality of monochromators are installed on the turntable at intervals along the circumference of the turntable, and the turntable is rotatably installed on the third mounting seat.

[0018] According to some embodiments of the present invention, the spectrometer includes a driving assembly, wherein the driving assembly is connected to the third mounting seat to drive the third mounting seat to move along the first direction; or, the driving assembly is connected to the central connecting portion to drive the central connecting portion to make a circular motion around the first mounting seat; or, the driving assembly is connected to the fourth connecting rod to drive the fourth connecting rod to make a circular motion around the first mounting seat; or, the driving assembly is connected to the connecting slider to drive the connecting slider to move along the extension direction of the third connecting rod; or, the driving assembly is connected to the connecting slider to drive the connecting slider to move along the extension direction of the fourth connecting rod.

[0019] According to some embodiments of the present invention, the spectrometer includes a substrate, one of the light source assembly and the detector assembly and the first mounting seat are fixedly mounted on the substrate, and the second mounting seat and the third mounting seat are movably mounted on the substrate.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

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

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

[0024] Figure 3 is a schematic structural diagram of a spectrometer according to an embodiment of the present invention, wherein a first slide slot is shown;

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

[0026] Reference numerals:

[0027] Spectrometer 100;

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

[0029] Second mounting base 21; detector assembly 22; detector 221; sample to be tested 222;

[0030] The third mounting seat 31; the monochromator assembly 32; the turntable 321; the monochromator 322;

[0031] Central connecting portion 40;

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

[0033] A second connecting rod 60;

[0034] A third connecting rod 70; a first slide rail 71;

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

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

[0037] A first arc guide rail 92; a second arc guide rail 93; a first linear guide rail 94; a driving assembly 95;

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

[0039] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "top", "bottom", "inside", "outside", "thickness", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore 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, a first feature "above" or "below" the second feature may include the first and second features being directly in contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, and a first feature "above", "above" and "above" the second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean 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 Figure 1-Figure 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 at least partially overlaps with the axial projection of the first mounting seat 11, so that the emission point of the light source assembly 12 or the focus at the detector assembly 22 is located on one side of the axial direction of the first mounting seat 11, so that the light source assembly 12, the detector assembly 22 and the monochromator assembly 32 are 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 understood as visible light or invisible light. For example, if the light is invisible light such as X-rays, the spectrometer 100 can be an X-ray absorption spectrometer, etc. The light source assembly 12 can include components such as a light source and a bracket for fixing the light source, the monochromator assembly 32 can include components such as a monochromator 322 and a bracket for fixing the monochromator 322, the detector assembly 22 can include components such as a detector 221 and a bracket for fixing the detector 221, and the detector assembly 22 can also include a sample 222 to be tested.

[0046] For example, in some embodiments, Figure 1-Figure 2 As shown, the spectrometer 100 is an X-ray absorption spectrometer. During the operation of the spectrometer 100, light is emitted from the light source component 12 to the monochromator component 32. The light is reflected by the monochromator 322 and then emitted to the sample 222 to be tested. The monochromator 322 may include components such as a bent crystal to reflect the light. The sample 222 to be tested absorbs the light. The light emitted to the sample 222 to be tested passes through the sample 222 to be tested and then emitted to the detector 221. The detector 221 detects the light signal absorbed by the sample 222 to be tested. The optical path of the above light is as follows: Figure 1 As shown by the arrow in the middle, 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 focus C. The sample 222 to be tested can be placed between the detector 221 and the monochromator 322 (as shown in FIG. Figure 2 shown).

[0047] The axial direction of the first mounting seat 11 is parallel to its own extension direction and passes through the hinge center between itself and other hinged components. Figure 1-Figure 2 As shown, the projection of the light source assembly 12 and the first mounting seat 11 in the up-down direction overlap, so that the emission 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 installed independently of the first mounting seat 11, and the installation method is flexible and optional. In the embodiment where the light source assembly 12 or the detector assembly 22 is installed independently of the first mounting seat 11, it is more conducive to ensuring the independence of the light source assembly 12 or the detector assembly 22, so that the light source assembly 12 or the detector assembly 22 is not easily affected by the moving parts in the spectrometer 100.

[0049] For example, in some embodiments, Figure 2As shown, the spectrometer 100 includes a substrate 10, a first mounting seat 11 is mounted on the substrate 10, a light source assembly 12 includes a light source and a mounting bracket, the light source is mounted on the substrate 10 through the mounting bracket so that the light source is located on the upper side of the first mounting seat 11, and the light source assembly 12 and the first mounting seat 11 are independently mounted on the substrate 10 to ensure the independence of the light source assembly 12, so that the light source assembly 12 is not easily disturbed by moving parts connected to the first mounting seat 11.

[0050] For example, in some embodiments, the detector assembly 22 includes a detector 221 and a mounting bracket. The detector 221 is mounted on the substrate 10 through the mounting bracket so that the detector 221 is located on the upper side of the first mounting seat 11. The detector assembly 22 and the first mounting seat 11 are independently mounted on the substrate 10 to ensure the independence of the detector assembly 22, so that the detector assembly 22 is not easily disturbed by moving parts connected to the first mounting seat 11.

[0051] The first direction F1 is parallel to the arrangement direction of the first mounting seat 11 and the third mounting seat 31. For example, in an embodiment where the axial projections of the light source assembly 12 and the first mounting seat 11 at least partially overlap, Figure 1 As shown, the first direction F1 is parallel to the arrangement direction of the monochromator assembly 32 and the light source assembly 12, and the first direction F1 may be the emission direction of the light emitted by the light source. For example, in an embodiment where the axial projections of the detector assembly 22 and the first mounting seat 11 at least partially overlap, the first direction F1 is parallel to the arrangement direction of the monochromator assembly 32 and the detector assembly 22.

[0052] The second mounting seat 21 and the third mounting seat 31 are movable relative to the first mounting seat 11, and can fix the position of the first mounting seat 11, and further fix the position of the light source assembly 12 or the detector assembly 22 near the first mounting seat 11, so that the monochromator assembly 32 and the detector assembly 22 can move relative to the light source assembly 12, or the monochromator assembly 32 and the light source assembly 12 can move relative to the detector assembly 22.

[0053] The first mounting seat 11 and the central connecting portion 40 are respectively hinged to the first connecting rod 50, so that the central connecting portion 40 can make an arc motion around the first mounting seat 11 through the first connecting rod 50. The second mounting seat 21 and the central connecting portion 40 are respectively hinged to the second connecting rod 60, so that the second mounting seat 21 can make an arc motion around the central connecting portion 40. The third mounting seat 31 and the central connecting portion 40 are respectively hinged to the third connecting rod 70, so that the third mounting seat 31 can make an arc motion around the central connecting portion 40. In the present application, the hinge of the two components can be achieved by bearings, etc.

[0054] The spacing between the first mounting seat 11 and the central connecting portion 40, the spacing between the second mounting seat 21 and the central connecting portion 40, and the spacing between the third mounting seat 31 and the central connecting portion 40 are equal to each other, so that when the second mounting seat 21 and the third mounting seat 31 move relative to the first mounting seat 11, the light source assembly 12, the monochromator assembly 32 and the detector assembly 22 can always be located on the Rowland circle L with the central connecting portion 40 as the center. For example, in some embodiments, such as Figure 1 As shown, the first mounting seat 11 is fixed, and when the third mounting seat 31 moves along the first direction F1, the emission point A, the spherical center B of the monochromator 322 and the focus C are always located on the Rowland circle L.

[0055] The fourth connecting rod 80 is hinged to the first mounting seat 11, so that the fourth connecting rod 80 can make an arc motion 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 motion 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 the connecting slider 91, and 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 portion 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 portion 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. Combined 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. Figure 1 As shown, the emission point A and the focus C can always be arranged symmetrically about the normal line of the spherical center of the monochromator 322.

[0058] In some related technologies, due to the complex connection relationship between the light source assembly, the monochromator assembly and the detector assembly, it is necessary to move the light source assembly, the monochromator assembly and the detector assembly together to adjust the relative positions of the light source assembly, the monochromator assembly and the detector assembly. Some light source assemblies and detector assemblies are heavy and bulky, which makes it difficult to link the light source assembly, the monochromator assembly and the detector assembly. Therefore, it is difficult to use a light source assembly or a detector assembly with a large mass in the related technologies.

[0059] The present application can fix the first mounting seat 11, and make the second mounting seat 21 and the third mounting seat 31 move relative to the first mounting seat 11, that is, fix the light source assembly 12 or the detector assembly 22 near the first mounting seat 11, and make the detector assembly 22 and the monochromator assembly 32 move relative to the light source assembly 12, or make the light source assembly 12 and the monochromator assembly 32 move 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 be linked with other components, which facilitates the use of a light source assembly 12 or a detector assembly 22 with a larger mass.

[0060] During the movement of the second mounting seat 21 and the third mounting seat 31 relative to the first mounting seat 11, the light source assembly 12, the monochromator assembly 32 and the detector assembly 22 are always located on the Rowland circle L with the central connecting portion 40 as the center, and the first mounting seat 11 and the second mounting seat 21 can always be arranged symmetrically about the third connecting rod 70, satisfying the conditions required 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] According to the spectrometer 100 of the embodiment of the present invention, the position of any one of the light source assembly 12 and the detector assembly 22 can be fixed. The relative positions of the light source assembly 12, the monochromator assembly 32 and the detector assembly 22 can be adjusted by simply moving the monochromator assembly 32 and the detector assembly 22 or by moving the monochromator assembly 32 and the light source assembly 12, thereby facilitating the use of a light source assembly 12 or a detector assembly 22 with a larger mass.

[0062] For ease of understanding, the following description is given by taking the example in which the axial projections of the first mounting seat 11 and the light source assembly 12 at least partially overlap, and the second mounting seat 21 installs the detector assembly 22. An embodiment in which the axial projections of the first mounting seat 11 and the detector assembly 22 at least partially overlap, and the second mounting seat 21 installs the light source assembly 12 can also be obtained according to the description below.

[0063] In some embodiments of the present invention, Figure 2-Figure 3 As shown, the connecting slider 91 is provided with a first slide groove 911 and a first slide groove 912 which are perpendicular to each other, the third connecting rod 70 is provided with a first slide rail 71 which matches with the first slide groove 911, and the fourth connecting rod 80 is provided with a second slide rail 81 which matches with the first slide groove 912, and the connecting slider 91 can be slidably installed on the first slide rail 71 and the second slide rail 81.

[0064] The connecting slider 91 moves along the first slide rail 71 through the first slide groove 911, so that the connecting slider 91 and the fourth connecting rod 80 move along the extension direction of the third connecting rod 70. The connecting slider 91 moves along the second slide rail 81 through the first slide groove 912, so that the connecting slider 91 and the third connecting rod 70 move 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 the movement and are not prone to displacement, which is beneficial to improving the working accuracy of the spectrometer 100.

[0065] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the spectrometer 100 includes a first arc-shaped guide rail 92, which extends along the circumference of the first mounting seat 11, and the central connecting portion 40 is slidably mounted on the first arc-shaped guide rail 92, so that the first arc-shaped guide rail 92 provides support for the central connecting portion 40, so that the movement of the central connecting portion 40 is more stable, thereby improving the overall working stability of the spectrometer 100. The structure of the first arc-shaped guide rail 92 is relatively simple and easy to implement.

[0066] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the spectrometer 100 includes a second arc-shaped guide rail 93, which extends along the circumference of the first mounting seat 11, and the fourth connecting rod 80 is slidably mounted on the second arc-shaped guide rail 93, so that the second arc-shaped guide rail 93 provides support for the fourth connecting rod 80, and then the detector assembly 22 is supported by 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. The structure of the second arc-shaped guide rail 93 is relatively simple and easy to implement.

[0067] In some embodiments, Figure 3-Figure 4 As shown, the first connecting rod 50, the second connecting rod 60 and the third connecting rod 70 all include a first rod portion 51 and a second rod portion 52 connected to each other, the first rod portion 51 is hinged to the central connecting portion 40, the second rod portion 52 of the first connecting rod 50 is hinged to the first mounting seat 11, the second rod portion 52 of the second connecting rod 60 is hinged to the second mounting seat 21, and the second rod portion 52 of the third connecting rod 70 is hinged to the third mounting seat 31. By using the split 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 and form the first connecting rod 50, the second connecting rod 60 and the third connecting rod 70, so as to achieve waste utilization and good economic efficiency.

[0068] The connecting part of the first rod 51 and the second rod 52 can also be superimposed to adjust the height difference between the central connecting part 40 and each mounting seat (the first mounting seat 11, the second mounting seat 21 or the third mounting seat 31) to change the installation height of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32, so that the light source assembly 12, the detector assembly 22 and the monochromator assembly 32 are located at the same height, and the optical path is 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 components such as pads on the mounting seat.

[0069] In some embodiments, the first rod portion 51 can be hinged to the central connecting portion 40, and the second rod portion 52 can be hinged to the mounting base, and then the first rod portion 51 and the second rod portion 52 can be connected, so as to reduce the mutual constraints of the connecting components in the spectrometer 100 during the manufacturing process, and the manufacturing of the spectrometer 100 is more convenient.

[0070] In some embodiments of the present invention, Figure 2 As shown, the spectrometer 100 includes a first linear guide rail 94 extending along a first direction F1, and the third mounting seat 31 can be 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 support the monochromator assembly 32 through the third mounting seat 31, so that the movement of the monochromator assembly 32 is more stable, thereby improving the overall working stability of the spectrometer 100.

[0071] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the spectrometer 100 includes a telescopic rod 96 , the second mounting seat 21 and the third mounting seat 31 are respectively hinged to the telescopic rod 96 , the detector assembly 22 is mounted on the telescopic rod 96 , and the axial projections of the detector assembly 22 and the second mounting seat 21 at least partially overlap.

[0072] The axial direction of the second mounting base 21 is parallel to its own extension direction and passes through the hinge center of itself and other hinged components, and the detector assembly 22 is indirectly mounted on the second mounting base 21 through the telescopic rod 96. For example, in some embodiments, Figure 2-Figure 3 As shown, the detector assembly 22 is mounted on the telescopic rod 96 and the projections of the detector assembly 22 and the second mounting seat 21 along the up and down directions partially overlap.

[0073] During the movement of the second mounting seat 21 and the third mounting seat 31 relative to the first mounting seat 11, the relative position and spacing between the second mounting seat 21 and the third mounting seat 31 will change, and the second mounting seat 21 and the third mounting seat 31 are respectively hinged to the telescopic rod 96 to connect the second mounting seat 21 and the third mounting seat 31, which is beneficial to make the detector assembly 22 at the second mounting seat 21 directional, so that the detector 221 in the detector assembly 22 always points to the spherical center of the monochromator 322 at the third mounting seat 31, and the light reflected by the monochromator 322 can be more accurately directed to the detector 221, and the spectrometer 100 has higher working accuracy.

[0074] In some embodiments, Figure 3 As shown, the telescopic rod 96 includes a mounting plate 961 and a second linear guide 962. One end of the mounting plate 961 is hinged to the second mounting seat 21 and the other end is slidably mounted on the second linear guide 962. The second linear guide 962 is hinged to the third mounting seat 31. The telescopic rod 96 can be extended and retracted by the mounting plate 961 and the second linear guide 962, so that the detector assembly 22 always points to the monochromator assembly 32 during the movement and is not easily offset, which is conducive to improving the working accuracy of the spectrometer 100.

[0075] In some embodiments of the present invention, Figure 2 As shown, the monochromator assembly 32 includes a turntable 321 and a plurality of different monochromators 322, wherein the plurality of monochromators 322 are installed on the turntable 321 at intervals along the circumference of the turntable 321, and the turntable 321 is rotatably installed on the third mounting seat 31. Different monochromators 322 cover different energy ranges, and the plurality of different monochromators 322 may have different bent crystal orientations, different diameters, different materials, etc.

[0076] Different monochromators 322 can be switched to cooperate with the light source assembly 12 and the detector assembly 22 through the turntable 321. The combination of multiple different monochromators 322 and the turntable 321 can not only reduce the error caused by manually switching the monochromator 322, but also does not need to turn off the light source to manually switch the monochromator 322, which greatly shortens the test time of the spectrometer 100. It takes a while for the light source to reach a stable state after it is turned on. The present application does not need to turn on the light source multiple times. For example, after turning on the light source once, different monochromators 322 can be switched through the turntable 321, which can increase the efficiency of the light source and extend the service life of the light source.

[0077] The present application can manually drive each component to move, or additional driving components can be provided to drive each component to move. For example, in some embodiments of the present invention, such as Figure 2As shown, the spectrometer 100 includes a driving assembly 95, which is connected to the third mounting seat 31 to drive the third mounting seat 31 to move along the first direction F1. The third mounting seat 31 moves to move the second mounting seat 21 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 central connecting part 40 to adjust the relative positions of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32. The driving is relatively simple and quick.

[0078] Of course, the driving assembly 95 can also be connected to the central connecting portion 40 to drive the central connecting portion 40 to make an arc motion around the first mounting seat 11, and the driving assembly 95 can also be connected to the fourth connecting rod 80 to drive the fourth connecting rod 80 to make an arc motion around the first mounting seat 11. The driving assembly 95 can also be connected to the connecting slider 91 to drive the connecting slider 91 to move along the extension direction of the third connecting rod 70, or drive the connecting slider 91 to move along the extension direction of the fourth connecting rod 80, so that the second mounting seat 21 and the third mounting seat 31 move relative to the first mounting seat 11. The present application has various driving modes for driving the movement of various components.

[0079] In some embodiments, the driving assembly 95 is connected to the telescopic rod 96 to drive the telescopic rod 96 to perform telescopic movement. By changing the length of the telescopic rod 96 through the driving assembly 95, the relative position and spacing between the second mounting seat 21 and the third mounting seat 31 can be changed, and then the relative positions of the light source assembly 12, the detector assembly 22 and the monochromator assembly 32 can be 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 central connecting part 40, and the driving is relatively simple and fast.

[0080] For example, in some embodiments, the driving assembly 95 includes an electronic control component, and the second linear guide rail 962 is equipped with an electronic control component to control the sliding displacement of the mounting plate 961 on the second linear guide rail 962 .

[0081] It should be noted that the change in the length of the telescopic rod 96 is equal to the displacement of the third mounting seat 31 along the first direction F1. Therefore, the telescopic amount of the telescopic rod 96 can be adjusted according to the displacement drive of the third mounting seat 31 along the first direction F1 as required, and the trajectory of each component in the spectrometer 100 is more controllable.

[0082] In some embodiments of the present invention, Figure 2 As shown, the spectrometer 100 includes a substrate 10, one of the light source assembly 12 and the detector assembly 22 is fixed to the substrate 10 with a first mounting seat 11, and the second mounting seat 21 and the third mounting seat 31 are movably mounted on the substrate 10. The substrate 10 can provide a stable working environment 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] A spectrometer 100 according to a specific embodiment of the present invention is described in detail below with reference to the accompanying drawings. It should be understood that the following description is only an exemplary illustration and cannot be construed as limiting the present invention.

[0084] like Figure 1-Figure 4 As shown, a spectrometer 100 according to a specific embodiment of the present invention includes a light source assembly 12 , a detector assembly 22 , a monochromator assembly 32 , a substrate 10 , a first mounting seat 11 , a second mounting seat 21 , a third mounting seat 31 and a telescopic rod 96 .

[0085] The light source assembly 12 includes 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 substrate 10 . The light source is located on the upper side of the first mounting seat 11 .

[0086] The detector assembly 22 includes a detector 221 and a sample to be tested 222. The detector assembly 22 is mounted on a telescopic rod 96. The telescopic rod 96 is telescopic and is hinged to the second mounting seat 21 and the third mounting seat 31 respectively. The projections of the detector assembly 22 and the second mounting seat 21 in the up and down directions overlap, so that the detector assembly 22 is indirectly mounted on the second mounting seat 21.

[0087] 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 at intervals along the circumference of the turntable 321 . The turntable 321 is rotatably installed on the third mounting seat 31 to facilitate switching of different monochromators 322 to cooperate with the light source assembly 12 and the detector assembly 22 .

[0088] The spectrometer 100 further includes a central connecting portion 40 , a first connecting rod 50 , a second connecting rod 60 , a third connecting rod 70 , a fourth connecting rod 80 , a connecting slider 91 , a first arcuate guide rail 92 , a second arcuate guide rail 93 , a first linear guide rail 94 and a driving assembly 95 .

[0089] The first arc guide rail 92 is installed on the base plate 10 and extends along the circumference of the central connecting part 40. The central connecting part 40 can be slidably installed on the first arc guide rail 92. The central connecting part 40 and the first mounting seat 11 are respectively hinged to the first connecting rod 50, so that the central connecting part 40 makes a circular motion around the first mounting seat 11 along the first arc guide rail 92.

[0090] The central connecting portion 40 and the second mounting seat 21 are respectively hinged to the second connecting rod 60, and the central connecting portion 40 and the third mounting seat 31 are respectively hinged to the third connecting rod 70. The spacing between the central connecting portion 40 and the first mounting seat 11, the spacing between the central connecting portion 40 and the second mounting seat 21, and the spacing between the central connecting portion 40 and the third mounting seat 31 are equal in pairs.

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

[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 slide groove 911 and a first slide groove 912 that are perpendicular to each other. The third connecting rod 70 has a first slide rail 71 that matches the first slide groove 911. The fourth connecting rod 80 has a second slide rail 81 that matches the first slide groove 912. Through the cooperation of the first slide groove 911 and the first slide rail 71, the connecting slider 91 is movable relative to the fourth connecting rod 80 along the extension direction of the third connecting rod 70. Through the cooperation of the first slide groove 912 and the second slide rail 81, 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 third connecting rod 70 and the fourth connecting rod 80 are always perpendicular to each other during movement and are not easily offset.

[0093] The first linear guide rail 94 is mounted on the substrate 10 and extends along the first direction F1. The third mounting seat 31 is slidably mounted on the first linear guide rail 94. The first direction F1 is parallel to the emission direction of the light source. The driving assembly 95 is connected to the third mounting seat 31. The driving assembly 95 is used to drive the third mounting seat 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 a Rowland circle L with the central connecting portion 40 as the center, and the first mounting seat 11 and the second mounting seat 21 can always be symmetrically arranged about the third connecting rod 70 .

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

[0096] The spectrometer 100 of this specific embodiment can be used to perform experiments such as X-ray absorption spectrum experiments when the light source is fixed, and the components in the spectrometer 100 have good stability and high working accuracy during the movement of the monochromator 322 and the detector 221 relative to the light source.

[0097] Other structures and operations of the spectrometer 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0098] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation 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 invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A spectrometer, characterized in that: include: Light source assembly, detector assembly and monochromator assembly; a first mounting seat, wherein an axial projection of one of the light source assembly and the detector assembly at least partially overlaps with 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 to mount the other of the light source assembly and the detector assembly; a third mounting seat, the third mounting seat being movable along a first direction relative to the first mounting seat, the third mounting seat being used to mount the monochromator assembly, the first direction being parallel to an arrangement direction of the first mounting seat and the third mounting seat; A central connecting portion, the central connecting portion moves in an arc around the first mounting seat; A first connecting rod, the first mounting seat and the central connecting portion are respectively hinged to the first connecting rod; a second connecting rod, the second mounting seat and the central connecting portion being hinged to the second connecting rod respectively; A third connecting rod, the third mounting seat and the central connecting portion are respectively hinged to the third connecting rod, and the first mounting seat, the second mounting seat and the third mounting seat are respectively spaced at equal distances from the central connecting portion; A fourth connecting rod, the fourth connecting rod is hinged to the first mounting seat, the second mounting seat is movably mounted on the fourth connecting rod along the extension direction of the fourth connecting rod, the third connecting rod is connected to the fourth connecting rod through a connecting slider, the connecting slider is movable relative to the fourth connecting rod along the extension direction of the third connecting rod and is movable relative to the third connecting rod along the extension direction of the fourth connecting rod, and the extension direction of the third connecting rod is perpendicular to the extension direction of the fourth connecting rod.

2. The spectrometer according to claim 1, characterized in that The connecting slider is provided with a first slide groove and a second slide groove which are perpendicular to each other, the third connecting rod is provided with a first slide rail which matches with the first slide groove, the fourth connecting rod is provided with a second slide rail which matches with the second slide groove, and the connecting slider can be slidably installed on the first slide rail and the second slide rail.

3. The spectrometer according to claim 1, characterized in that It comprises a first arc-shaped guide rail, which extends 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 spectrometer according to claim 1, characterized in that It comprises a second arc-shaped guide rail, which extends 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 spectrometer according to claim 1, characterized in that: The first connecting rod, the second connecting rod and the third connecting rod each include a first rod portion and a second rod portion connected to each other, and the first rod portion is hinged to the central connecting portion.

6. The spectrometer according to claim 1, characterized in that It includes a first linear guide rail extending along the first direction, and the third mounting seat is slidably mounted on the first linear guide rail.

7. The spectrometer according to claim 1, characterized in that It comprises a telescopic rod, the second mounting seat and the third mounting seat are respectively hinged to the telescopic rod, the detector assembly or the light source assembly at the second mounting seat is mounted on the telescopic rod and at least partially overlaps with the axial projection of the second mounting seat.

8. The spectrometer according to claim 7, characterized in that It comprises a driving assembly, and the driving assembly is connected to the telescopic rod to drive the telescopic rod to perform telescopic movement.

9. The spectrometer according to claim 1, characterized in that: The monochromator assembly includes a turntable and a plurality of different monochromators, wherein the plurality of monochromators are installed on the turntable at intervals along the circumference of the turntable, and the turntable is rotatably installed on the third mounting seat.

10. The spectrometer according to claim 1, characterized in that: It includes a driving component, which is connected to the third mounting seat to drive the third mounting seat to move along the first direction; or, the driving component is connected to the central connecting part to drive the central connecting part to make a circular motion around the first mounting seat; or, the driving component is connected to the fourth connecting rod to drive the fourth connecting rod to make a circular motion around the first mounting seat; or, the driving component is connected to the connecting slider to drive the connecting slider to move along the extension direction of the third connecting rod; or, the driving component is connected to the connecting slider to drive the connecting slider to move along the extension direction of the fourth connecting rod.

11. The spectrometer according to claim 1, characterized in that: It comprises a substrate, one of the light source assembly and the detector assembly and the first mounting seat are fixedly arranged on the substrate, and the second mounting seat and the third mounting seat are movably mounted on the substrate.

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