Crystal monochromator collimation method and crystal monochromator

Abstract

The application discloses a crystal monochromator collimation method and a crystal monochromator, and belongs to the technical field of optical instrument collimation. The crystal monochromator collimation method comprises the following steps: placing a self-collimator and obtaining a simulation light beam; collimating a connecting rod mechanism and a rotary table respectively according to the simulation light beam and based on the self-collimator; installing the connecting rod mechanism on the rotary table, adjusting the connecting rod mechanism to be installed in place according to the simulation light beam and based on the self-collimator; and installing a crystal on the connecting rod mechanism, adjusting the crystal to be installed in place according to the simulation light beam and based on the self-collimator. The connecting rod mechanism and the rotary table are collimated respectively, and then the connecting rod mechanism installed on the rotary table is adjusted, so that the collimation accuracy of all components capable of controlling the motion of the crystal is ensured, and only collimation is needed when the crystal monochromator is assembled, the collimation of the rotary table and the connecting rod mechanism in subsequent use of the crystal monochromator is avoided, and the use convenience is improved while the reproduction accuracy is ensured.

Description

Technical Field

[0001] This application belongs to the field of optical instrument collimation technology, and particularly relates to a collimation method for a crystal monochromator and a crystal monochromator. Background Technology

[0002] A crystal monochromator is a device that uses a crystal to separate light emitted from a light source into the desired monochromatic light. Since separating light into monochromatic beams of different wavelengths often requires an internal motion mechanism to adjust the crystal's orientation, this mechanism, consisting of at least two motion components, each controlling the crystal's movement direction, means that even subtle changes in the assembly of these components directly affect the beam splitting quality. Therefore, currently, it is often necessary to collimate the internal components of the crystal monochromator before each use, making operation cumbersome and compromising on reproducibility accuracy. Summary of the Invention

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a crystal monochromator collimation method and a crystal monochromator. By first aligning the linkage mechanism and the turntable separately, and then adjusting the linkage mechanism installed behind the turntable, the collimation accuracy of all components that can control the crystal movement is ensured. This achieves collimation only when assembling the crystal monochromator, avoiding the need for subsequent collimation of the turntable and linkage mechanism when using the crystal monochromator, thus improving ease of use while ensuring reproduction accuracy.

[0004] In a first aspect, this application provides a method for colliding a crystal monochromator, wherein the crystal monochromator includes a turntable, a linkage mechanism, and a crystal connected in sequence, the turntable being used to drive the linkage mechanism to rotate along a first direction, the linkage mechanism being used to drive the crystal to rotate along a second direction, and the first direction and the second direction being perpendicular to each other, the crystal monochromator collimation method comprising:

[0005] Place the autocollimator and obtain a simulated beam;

[0006] The linkage mechanism and the turntable are collimated according to the simulated beam and based on the autocollimator, respectively.

[0007] The linkage mechanism is installed on the turntable, and the linkage mechanism is adjusted into place according to the simulated beam and based on the autocollimator.

[0008] The crystal is installed in the linkage mechanism, and the crystal is adjusted into place according to the simulated beam and based on the autocollimator.

[0009] According to the crystal monochromator collimation method of this application, by first aligning the linkage mechanism and the turntable separately, and then adjusting the linkage mechanism installed behind the turntable, the collimation accuracy of all components that can control the movement of the crystal is ensured. Thus, collimation is only required when assembling the crystal monochromator, avoiding the need for collimation of the turntable and linkage mechanism when using the crystal monochromator in the future, improving ease of use while ensuring reproduction accuracy.

[0010] According to one embodiment of this application, the simulated beam includes a first simulated beam, the autocollimator includes a first autocollimator, and the step of collimating the linkage mechanism and the turntable based on the simulated beam and the autocollimator includes:

[0011] Install the linkage mechanism onto the test platform and adjust the linkage mechanism to be horizontal;

[0012] A right-angle prism is mounted to the crystal mounting part of the linkage mechanism. The crystal mounting part is used to mount the crystal. The right-angle prism has a first reflecting surface and a second reflecting surface that are perpendicularly connected. The center of the first reflecting surface is located in the optical path of the first simulated beam. The first autocollimator is located on the normal of the second reflecting surface.

[0013] Rotate the crystal mounting part to its maximum stroke and obtain the first debugging data through the first autocollimator;

[0014] The target pose of the right-angle prism is determined based on the first debugging data;

[0015] The pose of the right-angle prism is adjusted to the target pose so that the rotation axis of the crystal mounting part is parallel to the first reflective surface and the second reflective surface, respectively.

[0016] According to one embodiment of this application, the simulated beam further includes a second simulated beam, the autocollimator includes a second autocollimator, and the step of collimating the linkage mechanism and the turntable based on the simulated beam and the autocollimator respectively further includes:

[0017] Install the turntable onto the test platform and adjust the turntable to be vertical;

[0018] A plane mirror is installed on the turntable, and the center of the plane mirror and the second autocollimator are both located on the optical path of the second simulated beam;

[0019] Rotate the plane mirror to its maximum stroke and obtain the second adjustment data through the second autocollimator;

[0020] Determine the target attitude of the second autocollimator based on the second debugging data;

[0021] Adjust the pose of the second autocollimator to the target pose so that the rotation axis of the plane mirror coincides with the optical path of the second simulated beam;

[0022] Remove the plane mirror.

[0023] According to one embodiment of this application, the installation of the linkage mechanism on the turntable, and the adjustment of the linkage mechanism into place based on the simulated beam and the autocollimator, includes:

[0024] The linkage mechanism is installed on the turntable, and the first reflecting surface is positioned in the optical path of the second simulated beam.

[0025] Rotate the linkage mechanism to its maximum stroke and obtain the third debugging data through the second autocollimator;

[0026] The target position of the linkage mechanism is determined based on the third debugging data.

[0027] Adjust the installation position of the linkage mechanism to the target position so that the rotation axis of the linkage mechanism is perpendicular to the rotation axis of the right-angle prism.

[0028] According to one embodiment of this application, the simulated beam further includes a third simulated beam, the autocollimator further includes a third autocollimator, and the step of adjusting the mounting position of the linkage mechanism to the target position further includes:

[0029] Adjust the third autocollimator until the centers of the third autocollimator and the second reflecting surface are both located in the optical path of the third simulated beam;

[0030] The turntable is rotated, and the fourth debugging data is obtained through the third autocollimator;

[0031] The fourth debugging data is used to determine whether the linkage mechanism is installed in place.

[0032] According to one embodiment of this application, the step of mounting the crystal to the linkage mechanism and adjusting the crystal in place based on the simulated beam and the autocollimator includes:

[0033] Remove the right-angle prism and install the crystal onto the crystal mounting part;

[0034] Adjust the crystal orientation until the incident light path of the simulated beam onto the crystal and the reflected light path back coincide.

[0035] According to one embodiment of this application, the crystal monochromator further includes a mounting substrate, the turntable is rotatably mounted on the mounting substrate along the first direction, and the mounting of the linkage mechanism on the turntable further includes:

[0036] The turntable is mounted onto the mounting base plate;

[0037] The process of mounting the crystal to the linkage mechanism further includes:

[0038] The mounting base plate, together with the turntable and the linkage mechanism, are installed on the working platform as a whole.

[0039] The mounting substrate is collimated according to the simulated beam.

[0040] According to one embodiment of this application, the collimation of the mounting substrate based on the simulated light beam includes:

[0041] Adjust the mounting substrate until the incident light path of the simulated beam hitting the reflecting surface of the right-angle prism and the reflected light path coincide.

[0042] Secondly, this application provides a crystal monochromator obtained based on the above-described crystal monochromator collimation method, the crystal monochromator comprising:

[0043] Turntable;

[0044] A linkage mechanism, mounted on the turntable, is used to rotate in a first direction under the drive of the turntable;

[0045] A crystal is mounted on the linkage mechanism and is used to rotate in a second direction under the drive of the linkage mechanism, wherein the first direction and the second direction are perpendicular.

[0046] According to the crystal monochromator of this application, by utilizing the above-mentioned crystal monochromator collimation method, the linkage mechanism and the turntable are collimated separately first, and then the linkage mechanism installed behind the turntable is adjusted, thereby ensuring the accurate collimation of all components that can control the movement of the crystal. This achieves the goal of collimation only needing to be performed when assembling the crystal monochromator, avoiding the need for collimation of the turntable and linkage mechanism when using the crystal monochromator later, improving ease of use while ensuring reproduction accuracy.

[0047] According to one embodiment of this application, it also includes:

[0048] Mounting substrate, wherein the turntable is rotatably mounted on the mounting substrate along the first direction.

[0049] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0050] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0051] Figure 1 This is a schematic flowchart of the crystal monochromator collimation method provided in the embodiments of this application;

[0052] Figure 2 This is a schematic diagram of the structure of the crystal monochromator provided in the embodiments of this application;

[0053] Figure 3 This is a schematic diagram of the linkage mechanism provided in the embodiments of this application without the crystal mounting part installed;

[0054] Figure 4 This is a schematic diagram of the optical path of the collimation linkage mechanism provided in the embodiments of this application;

[0055] Figure 5 This is a schematic diagram of the optical path of the collimation turntable provided in the embodiments of this application;

[0056] Figure 6 This is a schematic diagram of the optical path of the linkage mechanism collimated and mounted on the turntable according to an embodiment of this application;

[0057] Figure 7 This is a schematic diagram of the optical path of the collimation mounting substrate provided in the embodiments of this application.

[0058] Figure label:

[0059] 110. Turntable;

[0060] 120. Linkage mechanism; 121. Reference surface; 122. Pin hole;

[0061] 130. Install the substrate;

[0062] 201. First autocollimator; 202. Second autocollimator; 203. Third autocollimator;

[0063] 301. First theodolite; 303. Third theodolite; 304. Fourth theodolite;

[0064] 400. Right-angle prism; 401. First reflecting surface; 402. Second reflecting surface;

[0065] 500. Plane mirror. Detailed Implementation

[0066] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0067] The following is for reference. Figures 1-7 The present application describes a method for colliding a crystal monochromator, which is used to collimate a crystal monochromator. The crystal monochromator includes a turntable 110, a linkage mechanism 120, and a crystal connected in sequence. The turntable 110 is used to drive the linkage mechanism 120 to rotate in a first direction, and the linkage mechanism 120 is used to drive the crystal to rotate in a second direction, wherein the first direction and the second direction are perpendicular.

[0068] The crystal monochromator collimation method includes steps S101, S102, S103, and S104.

[0069] S101, Place the autocollimator and obtain the simulated beam.

[0070] In this embodiment, the simulated light beam can be emitted by a theodolite or an autocollimator. Both can emit red laser beams and can be used as a reference when colliding the crystal monochromator using the crosshairs on the theodolite's eyepiece, or when colliding the crystal monochromator using a specific reading from the autocollimator. Of course, in other embodiments, the simulated light beam can also be emitted by a laser emitter; this embodiment does not impose specific limitations on this. It should be noted that the theodolite, laser emitter, and autocollimator are all common knowledge in the art and will not be described in detail here.

[0071] S102. The linkage mechanism 120 and the turntable 110 are collimated according to the simulated beam and based on the autocollimator.

[0072] It is understood that in this embodiment, considering that the linkage mechanism 120 and the turntable 110 control different directions of crystal movement respectively, the linkage mechanism 120 and the turntable 110 are aligned respectively to ensure that the aligned linkage mechanism 120 can accurately drive the crystal to rotate in the second direction, and the aligned turntable 110 can accurately drive the crystal to rotate in the first direction. Thus, alignment is only required when assembling the crystal monochromator, avoiding the need for alignment of the turntable 110 and the linkage mechanism 120 when using the crystal monochromator in the future, improving ease of use while ensuring reproduction accuracy.

[0073] S103. Install the linkage mechanism 120 on the turntable 110, and adjust the linkage mechanism 120 into place according to the simulated beam and based on the autocollimator.

[0074] It is understandable that some assembly errors may occur when installing the linkage mechanism 120 on the turntable 110, resulting in a certain deviation between the rotation axis and the second direction of the crystal on the linkage mechanism 120 after installation, which in turn affects the subsequent use of the crystal. Therefore, the linkage mechanism 120 is adjusted according to the simulated beam and based on the autocollimator to ensure that the rotation axis of the crystal driven by the linkage mechanism 120 and the rotation axis of the linkage mechanism 120 driven by the turntable 110 after assembly coincide with the corresponding second direction and first direction, respectively, thereby improving ease of use while ensuring reproduction accuracy.

[0075] S104. Install the crystal onto the linkage mechanism 120, and adjust the crystal into place according to the simulated beam and based on the autocollimator.

[0076] It is understandable that some assembly errors may occur when installing the crystal on the linkage mechanism 120, resulting in a certain deviation between the installed crystal and the linkage mechanism 120, which in turn affects the subsequent use of the crystal. Therefore, the crystal is adjusted based on the simulated beam and the autocollimator to ensure that the rotation axis of the crystal coincides with the second direction when the crystal's attitude has not changed after assembly, thereby improving ease of use while ensuring reproduction accuracy.

[0077] According to the crystal monochromator collimation method provided in the embodiments of this application, by first aligning the linkage mechanism 120 and the turntable 110 respectively, and then adjusting the linkage mechanism 120 installed after the turntable 110, the collimation accuracy of all components that can control the movement of the crystal is ensured. Thus, it is realized that collimation only needs to be performed when assembling the crystal monochromator, avoiding the need to collimate the turntable 110 and the linkage mechanism 120 when using the crystal monochromator in the future, improving the convenience of use while ensuring the reproduction accuracy.

[0078] In some embodiments, combined with Figure 4 As shown, the simulated beam includes a first simulated beam, and the autocollimator includes a first autocollimator 201. In step S102, the linkage mechanism 120 and the turntable 110 are collimated according to the simulated beam and based on the autocollimator, respectively, including S10211, S10212, S10213, S10214 and S10215.

[0079] S10211. Install the linkage mechanism 120 onto the test platform and adjust the linkage mechanism 120 to be horizontal.

[0080] It should be noted that, since the test platform itself is pre-calibrated, by first fixing the linkage mechanism 120 onto the test platform and ensuring that all parts of the reference surface 121 of the linkage mechanism 120 are level, assembly errors can be minimized and the accuracy of subsequent alignment can be improved. In this embodiment, the height of the test platform is adjustable to adapt to different users and scenarios.

[0081] Understandably, the specific steps for adjusting the linkage mechanism 120 to a horizontal position in S10211 include:

[0082] Set up the first theodolite 301 and the level, and obtain the preset height;

[0083] The reference plane 121 of the linkage mechanism 120 is adjusted to a horizontal position based on the preset height of the level instrument.

[0084] Specifically, a ceramic gauge block of the same size as the preset height is selected as the height reference. The ceramic gauge block is placed at any position on the reference surface 121 of the linkage mechanism 120. The height of the level is adjusted until the center height of the level is the same as the top height of the ceramic gauge block. The level is then considered to be properly adjusted. Subsequently, the ceramic gauge block is moved to the periphery and center of the reference surface 121 in sequence. At the same time, the level is used to sweep the top of the ceramic gauge block at the corresponding position to obtain the actual height of the ceramic gauge block at each position. The difference between the actual height at each position and the preset height is then obtained. The actual height of each position on the reference surface 121 is adjusted by adjusting the height of the test platform, etc., until all actual heights are consistent with the preset height. At the same time, the first simulated beam emitted by the first theodolite 301 passes through multiple slits installed at the pin holes 122 of the reference surface 121 in sequence. The reference surface 121 of the linkage mechanism 120 is then considered to be level.

[0085] It should be noted that the second direction refers to the direction parallel to the normal of the reference plane 121.

[0086] S10212. A crystal mounting part for mounting a right-angle prism 400 to a linkage mechanism 120. The crystal mounting part is used to mount a crystal. The right-angle prism 400 has a first reflecting surface 401 and a second reflecting surface 402 that are vertically connected. The center of the first reflecting surface 401 is located on the optical path of the first simulated beam, and the first autocollimator 201 is located on the normal of the second reflecting surface 402.

[0087] Understandably, after installing the right-angle prism 400, the first theodolite 301 is used to observe the incident light spot of the first simulated beam directed towards the first reflecting surface 401 and the outgoing light spot reflected back from the first reflecting surface 401. The position of the right-angle prism 400 is adjusted to ensure that the incident light spot and the reflected light spot coincide, thereby ensuring that the center of the first reflecting surface 401 is located in the optical path of the first simulated beam, and the first autocollimator 201 is moved to the normal direction of the second reflecting surface 402.

[0088] S10213, rotate the crystal mounting part to its maximum stroke and obtain the first debugging data through the first autocollimator 201.

[0089] It is understandable that when adjusting the linkage mechanism 120, the right-angle prism 400 will be rotated through the crystal mounting part. Therefore, during the process of rotating the crystal mounting part to its maximum stroke, multiple pitch attitude readings and corresponding horizontal yaw readings can be obtained through the first autocollimator 201. Each pitch attitude reading corresponds to the motion displacement of the linkage mechanism 120. That is, the first adjustment data includes multiple pitch attitude readings, corresponding horizontal yaw readings, and motion displacement.

[0090] S10214. Determine the target pose of the right-angle prism 400 based on the first debugging data.

[0091] It is understandable that the target pose is determined based on the target motion displacement. That is, the target motion displacement is selected from the first debugging data and has a linear relationship with the corresponding horizontal yaw reading, and the corresponding pitch attitude reading changes the least. It can be assumed that when the linkage mechanism 120 moves to the target motion displacement, the rotation axis of the linkage mechanism 120 is parallel to the second reflective surface 402. In addition, the first reflective surface 401 and the second reflective surface 402 are perpendicular, that is, the rotation axis of the linkage mechanism 120 is also parallel to the first reflective surface 401.

[0092] S10215. Adjust the position of the right-angle prism 400 to the target position so that the rotation axis of the crystal mounting part is parallel to the first reflecting surface 401 and the second reflecting surface 402 respectively.

[0093] It is understandable that when the linkage mechanism 120 moves to the target displacement, since the rotation axis of the linkage mechanism 120 is parallel to the first reflecting surface 401 and the second reflecting surface 402 respectively, the rotation axis of the linkage mechanism 120 can be ensured to be aligned and parallel to the second direction.

[0094] It should be noted that the rotation axis of the linkage mechanism 120 refers to the axis that drives the crystal mounting part to rotate, and the rotation axis of the turntable 110 refers to the axis that drives the linkage mechanism 120 to rotate.

[0095] In some embodiments, such as Figure 5 As shown, the simulated beam also includes a second simulated beam, and the autocollimator includes a second autocollimator 202. Step S102, which involves colliding the linkage mechanism 120 and the turntable 110 based on the simulated beam and the autocollimator, also includes steps S10221, S10222, S10223, S10224, S10225, and S10226.

[0096] Step S10221: Install the turntable 110 onto the test platform and adjust the turntable 110 to be vertical.

[0097] It should be noted that the method of adjusting the turntable 110 to be vertical can refer to the method of adjusting the linkage mechanism 120 to be horizontal in step S10211 above, and will not be described in detail here. In this embodiment, the turntable 110 is adjusted by the second simulated beam emitted by the second theodolite.

[0098] Step S10222: Install the plane mirror 500 onto the turntable 110, with the center of the plane mirror 500 and the second autocollimator 202 both located on the optical path of the second simulated beam.

[0099] It is understandable that after installing the plane mirror 500, the second autocollimator 202 is roughly moved to the extension line of the centerline of the plane mirror 500.

[0100] Step S10223: Rotate the plane mirror 500 to its maximum stroke and obtain the second debugging data through the second autocollimator 202.

[0101] It should be noted that, since adjusting the turntable 110 will drive the plane mirror 500 to rotate and adjust the attitude of the second autocollimator 202, during the process of rotating it to its maximum stroke (exemplarily, the turntable 110 rotates 360°), multiple pitch attitude readings and the corresponding absolute attitude of the second autocollimator 202 can be obtained through the second autocollimator 202. That is, the second debugging data includes multiple pitch attitude readings and the absolute attitude of the second autocollimator 202.

[0102] Step S10224: Determine the target attitude of the second autocollimator 202 based on the second debugging data.

[0103] It is understandable that the pitch attitude reading with the smallest change is selected from the second set of debugging data, and the absolute attitude of the second autocollimator 202 corresponding to that pitch attitude reading can be considered as the target attitude.

[0104] Step S10225: Adjust the pose of the second autocollimator 202 to the target pose so that the rotation axis of the plane mirror 500 coincides with the optical path of the second simulated beam.

[0105] It is understandable that by adjusting the pose of the second autocollimator 202 to the target pose, since the rotation axis of the plane mirror 500 coincides with the optical path of the second simulated beam, the rotation axis of the turntable 110 can be aligned until it is parallel to the first direction, and the second autocollimator 202 is ensured to be on the rotation axis of the turntable 110.

[0106] Step S10226: Remove the plane mirror 500.

[0107] Understandably, since the turntable 110 has been aligned, the plane mirror 500 is removed to facilitate the subsequent installation of the linkage mechanism 120.

[0108] In some embodiments, such as Figure 6 As shown, in step S103, the linkage mechanism 120 is installed on the turntable 110. The linkage mechanism 120 is adjusted into place according to the simulated beam and based on the autocollimator, including:

[0109] S1031. Install the linkage mechanism 120 on the turntable 110 and position the first reflecting surface 401 in the optical path of the second simulated beam.

[0110] S1032, rotate the linkage mechanism 120 to its maximum stroke and obtain the third debugging data through the second autocollimator 202;

[0111] S1033. Determine the target position of linkage mechanism 120 based on the third debugging data;

[0112] S1034. Adjust the installation position of the linkage mechanism 120 to the target position so that the rotation axis of the linkage mechanism 120 is perpendicular to the rotation axis of the right angle prism 400.

[0113] It is important to understand that after removing the plane mirror 500, the collimated linkage mechanism 120 is installed on the turntable 110, ensuring that the first reflecting surface 401 of the right-angle prism 400 on the linkage mechanism 120 and the second autocollimator 202, which has been adjusted to the target position, are both on the optical path of the second simulated beam. Then, while rotating the linkage mechanism 120 to its maximum stroke (exemplarily, rotating the turntable 110 360°), the installation position of the linkage mechanism 120 on the turntable 110 is adjusted. This allows the second autocollimator 202 to obtain multiple pitch attitude readings and corresponding installation positions; that is, the third debugging data includes multiple pitch attitude readings and corresponding installation positions. The installation position corresponding to the pitch attitude reading with the smallest change is selected from the third debugging data and can be considered the target position. The installation position of the linkage mechanism 120 is then adjusted to the target position, so that the first reflecting surface 401 can be considered to be perpendicular to the second simulated beam, that is, the rotation axis of the turntable 110 is perpendicular to the rotation axis of the linkage mechanism 120.

[0114] In some embodiments, such as Figure 6 As shown, the simulated beam also includes a third simulated beam, and the autocollimator also includes a third autocollimator 203. In step S1034, the installation position of the linkage mechanism 120 is adjusted to the target position, and then the following steps are also included:

[0115] S1035. Adjust the third autocollimator 203 until the center of the third autocollimator 203 and the center of the second reflecting surface 402 are both located in the optical path of the third simulated beam.

[0116] S1036, Rotate the turntable 110 and obtain the fourth debugging data through the third autocollimator 203;

[0117] S1037. Determine whether the linkage mechanism 120 is installed in place based on the fourth debugging data.

[0118] Understandably, the third autocollimator 203 is moved to the normal direction of the second reflecting surface 402 of the right-angle prism 400. While rotating the turntable 110, the pitch readings of the third autocollimator 203 are observed and obtained, thus obtaining multiple pitch direction readings, corresponding yaw direction readings, and corresponding turntable 110 rotation angles. That is, the fourth debugging data includes multiple pitch direction readings, corresponding yaw direction readings, and corresponding turntable 110 rotation angles. When all yaw direction readings show no significant change, and the pitch direction readings corresponding to each yaw direction reading and the turntable 110 rotation angles are linearly related, the linkage mechanism 120 can be considered to be installed correctly. If there is a significant change in the yaw direction readings, and / or the pitch direction readings corresponding to the yaw direction readings and the turntable 110 rotation angles are not linearly related, then it is necessary to return to step S1032 to continue adjusting the installation position of the linkage mechanism 120.

[0119] In some embodiments, considering that the crystal monochromator also includes a mounting substrate 130, and the turntable 110 is rotatably mounted on the mounting substrate 130 along a first direction, the step S103, which involves mounting the linkage mechanism 120 on the turntable 110, further includes the following steps before:

[0120] The turntable 110 is mounted onto the mounting base plate 130.

[0121] It is understandable that, since the test platform is already calibrated, the mounting substrate 130 can be directly mounted onto the test platform to facilitate the subsequent installation of the turntable 110 and the overall movement of the crystal monochromator. Of course, in some embodiments, to ensure collimation accuracy, the mounting substrate 130 mounted on the test platform can also be collimated; this embodiment does not impose specific limitations on this.

[0122] In some embodiments, the installation of the crystal on the linkage mechanism 120 in step S104 further includes:

[0123] The mounting base plate 130, together with the turntable 110 and the linkage mechanism 120, are installed on the work platform as a whole.

[0124] The mounting substrate 130 is collimated according to the simulated beam.

[0125] It is understandable that, since the mounting accuracy of the mounting substrate 130 after it is mounted on the working platform cannot be guaranteed, the mounting substrate 130 is collimated to ensure the accuracy of subsequent crystal collimation.

[0126] In some embodiments, collimating the mounting substrate 130 according to the simulated beam includes:

[0127] Adjust the mounting base plate 130 until the incident light path of the simulated beam hitting the reflecting surface of the right-angle prism 400 and the reflected light path back coincide.

[0128] It is understandable that, such as Figure 7 As shown, a third theodolite 303 and a fourth theodolite 304 are placed respectively, with the fourth simulated beam emitted by the third theodolite 303 and the fifth simulated beam emitted by the fourth theodolite 304 perpendicular to each other. Then, the mounting base 130 is adjusted to ensure that the center of the first reflecting surface 401 and the center of the second reflecting surface 402 are on the optical paths of the fourth and fifth simulated beams respectively, and that the corresponding incident and reflected light coincide, thereby ensuring that the mounting base 130, the turntable 110, and the linkage mechanism 120 are all accurately positioned. It should be noted that the reflecting surfaces of the right-angle prism 400 refer to the first reflecting surface 401 and the second reflecting surface 402.

[0129] In some embodiments, mounting a crystal to the linkage mechanism 120 and adjusting the crystal mounting position according to the simulated beam and based on an autocollimator includes:

[0130] Remove the right-angle prism 400 and install the crystal into the crystal mounting section;

[0131] Adjust the crystal orientation until the incident light path of the simulated beam hitting the crystal and the reflected light path back coincide.

[0132] It is understandable that by placing the reflective surface of the crystal in the optical path of the fourth or fifth analog beam and adjusting the crystal's orientation so that the incident and reflected light paths coincide, the collimation accuracy of the crystal is ensured.

[0133] This application also provides a crystal monochromator based on the crystal monochromator collimation method described above.

[0134] like Figure 2 and Figure 3 As shown, the crystal monochromator includes a turntable 110, a linkage mechanism 120, and a crystal. The linkage mechanism 120 is mounted on the turntable 110 and is used to rotate along a first direction under the drive of the turntable 110; the crystal is mounted on the linkage mechanism 120 and is used to rotate along a second direction under the drive of the linkage mechanism 120, and the first direction and the second direction are perpendicular.

[0135] It should be noted that the installation methods of the turntable 110 and the linkage mechanism 120, as well as the installation methods of the crystal and the linkage mechanism 120, include, but are not limited to, riveting connection and threaded connection.

[0136] According to the crystal monochromator provided in the embodiments of this application, by utilizing the above-described crystal monochromator collimation method, the linkage mechanism 120 and the turntable 110 are collimated first, and then the linkage mechanism 120 installed after the turntable 110 is adjusted, thereby ensuring the accurate collimation of all components that can control the movement of the crystal. This achieves the goal that collimation only needs to be performed when assembling the crystal monochromator, avoiding the need for collimation of the turntable 110 and the linkage mechanism 120 when using the crystal monochromator in the future, improving the convenience of use while ensuring the reproduction accuracy.

[0137] In some embodiments, the crystal monochromator further includes a mounting substrate 130, on which the turntable 110 is rotatably mounted along a first direction. The material of the mounting substrate 130 includes, but is not limited to, stainless steel, aluminum alloy, or titanium alloy.

[0138] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0139] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0140] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0141] In the description of this application, "multiple" means two or more.

[0142] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0143] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0144] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0145] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for collimating a crystal monochromator, used to collimate a crystal monochromator, the crystal monochromator comprising a turntable, a linkage mechanism, and a crystal connected in sequence, the turntable driving the linkage mechanism to rotate along a first direction, the linkage mechanism driving the crystal to rotate along a second direction, wherein the first direction and the second direction are perpendicular, characterized in that... include: Place the autocollimator and obtain a simulated beam; The linkage mechanism and the turntable are collimated according to the simulated beam and based on the autocollimator, respectively. The linkage mechanism is installed on the turntable, and the linkage mechanism is adjusted into place according to the simulated beam and based on the autocollimator. The crystal is installed in the linkage mechanism, and the crystal is adjusted into place according to the simulated beam and based on the autocollimator. The simulated beam includes a first simulated beam, the autocollimator includes a first autocollimator, and the step of collimating the linkage mechanism and the turntable based on the simulated beam and the autocollimator includes: Install the linkage mechanism onto the test platform and adjust the linkage mechanism to be horizontal; A right-angle prism is mounted to the crystal mounting part of the linkage mechanism. The crystal mounting part is used to mount the crystal. The right-angle prism has a first reflecting surface and a second reflecting surface that are perpendicularly connected. The center of the first reflecting surface is located in the optical path of the first simulated beam. The first autocollimator is located on the normal of the second reflecting surface. Rotate the crystal mounting part to its maximum stroke and obtain the first debugging data through the first autocollimator; The target pose of the right-angle prism is determined based on the first debugging data; The pose of the right-angle prism is adjusted to the target pose so that the rotation axis of the crystal mounting part is parallel to the first reflective surface and the second reflective surface, respectively.

2. The crystal monochromator collimation method according to claim 1, characterized in that, The simulated beam further includes a second simulated beam, the autocollimator includes a second autocollimator, and the step of collimating the linkage mechanism and the turntable based on the simulated beam and the autocollimator respectively further includes: Install the turntable onto the test platform and adjust the turntable to be vertical; A plane mirror is installed on the turntable, and the center of the plane mirror and the second autocollimator are both located on the optical path of the second simulated beam; Rotate the plane mirror to its maximum stroke and obtain the second adjustment data through the second autocollimator; Determine the target attitude of the second autocollimator based on the second debugging data; Adjust the pose of the second autocollimator to the target pose so that the rotation axis of the plane mirror coincides with the optical path of the second simulated beam; Remove the plane mirror.

3. The crystal monochromator collimation method according to claim 2, characterized in that, The installation of the linkage mechanism on the turntable, and the adjustment of the linkage mechanism into place according to the simulated beam and based on the autocollimator, includes: The linkage mechanism is installed on the turntable, and the first reflecting surface is positioned in the optical path of the second simulated beam. Rotate the linkage mechanism to its maximum stroke and obtain the third debugging data through the second autocollimator; The target position of the linkage mechanism is determined based on the third debugging data. Adjust the installation position of the linkage mechanism to the target position so that the rotation axis of the linkage mechanism is perpendicular to the rotation axis of the right-angle prism.

4. The crystal monochromator collimation method according to claim 3, characterized in that, The simulated beam further includes a third simulated beam, the autocollimator further includes a third autocollimator, and the adjustment of the linkage mechanism's installation position to the target position, followed by: Adjust the third autocollimator until the centers of the third autocollimator and the second reflecting surface are both located in the optical path of the third simulated beam; The turntable is rotated, and the fourth debugging data is obtained through the third autocollimator; The fourth debugging data is used to determine whether the linkage mechanism is installed in place.

5. The crystal monochromator collimation method according to claim 1, characterized in that, The simulated beam further includes a fourth simulated beam and a fifth simulated beam. The mounting of the crystal on the linkage mechanism, and adjusting the crystal's mounting position according to the simulated beam and based on the autocollimator, includes: Remove the right-angle prism and install the crystal onto the crystal mounting part; The crystal orientation is adjusted so that the reflective surface of the crystal is in the optical path of the fourth and fifth simulated beams, until the incident optical path of the fourth and fifth simulated beams onto the crystal and the reflected optical path are coincident.

6. The crystal monochromator collimation method according to claim 5, characterized in that, The crystal monochromator further includes a mounting base, the turntable is rotatably mounted on the mounting base along the first direction, and the linkage mechanism is mounted on the turntable, further comprising: The turntable is mounted onto the mounting base plate; The process of mounting the crystal to the linkage mechanism further includes: The mounting base plate, together with the turntable and the linkage mechanism, are installed on the working platform as a whole. The mounting substrate is collimated according to the fourth and fifth simulated beams.

7. The crystal monochromator collimation method according to claim 6, characterized in that, The step of collimating the mounting substrate according to the fourth and fifth simulated beams includes: Adjust the mounting substrate until the incident light path of the fourth and fifth simulated beams onto the reflecting surface of the right-angle prism and the reflected light path back coincide.

8. A crystal monochromator, obtained based on the crystal monochromator collimation method according to any one of claims 1 to 7, characterized in that, include: Turntable; A linkage mechanism, mounted on the turntable, is used to rotate in a first direction under the drive of the turntable; A crystal is mounted on the linkage mechanism and is used to rotate in a second direction under the drive of the linkage mechanism, wherein the first direction and the second direction are perpendicular.

9. The crystal monochromator according to claim 8, characterized in that, Also includes: Mounting substrate, wherein the turntable is rotatably mounted on the mounting substrate along the first direction.

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