Sample collimation adjusting device for neutron scattering rheological experiment
By designing a sample collimation adjustment device, the cross slit on the aperture assembly is used to focus neutrons, solving the alignment problem in neutron scattering rheology experiments, achieving high-precision neutron alignment, and improving experimental results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-03-31
AI Technical Summary
In neutron scattering rheological experiments, neutrons cannot be precisely aligned with the sample, affecting the experimental results.
Design a sample collimation adjustment device, including a first motion component, a second motion component and a third motion component, to focus neutrons through the cross slit on the aperture component to achieve high-precision alignment.
This improves the precision and effectiveness of neutron scattering rheological experiments, ensuring that neutrons can accurately hit the rheological samples.
Smart Images
Figure CN224066685U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of equipment for neutron scattering rheological experiments, and specifically to a sample collimation adjustment device for neutron scattering rheological experiments. Background Technology
[0002] Neutron scattering is a key technology for deeply understanding the complex relationships between the structure and properties of matter, and it is widely applied in multiple disciplines such as physics, chemistry, biology, geology and mineralogy, and materials science. Compared to other methods for exploring the structure of matter (such as X-ray technology), neutron scattering stands out due to its unique isotope resolution capability, opening up a dedicated path for in-depth research on alloy systems, complex organic compounds, and biomolecules, demonstrating its irreplaceable advantages. Furthermore, neutrons possess exceptional penetrating power, capable of penetrating harsh environmental conditions such as high temperatures, high pressures, and even extreme low temperatures, directly and non-destructively probing the internal structural information of samples. This characteristic is particularly valuable in materials science, extreme condition physics, and geological research.
[0003] Soft matter is a substance that lies between solids and ideal fluids, its most prominent characteristic being its ability to respond significantly to and change in response to even the slightest external stimuli. The study of rheological and other functional properties exhibited by soft matter due to changes in its flow or deformation patterns caused by weak external disturbances, or by subtle structural alterations, is called rheology. Complex fluids exhibit a range of fascinating behaviors under the influence of flow fields, from simple orientation of anisotropic particles to various phase transitions and transformations; even the rearrangement and orientation of particles can lead to significant changes in rheological behavior. Beyond the fundamental scientific interest in these fascinating phenomena, understanding fluids in flow is also technically crucial, as most of these ubiquitous materials undergo significant shear flow during processing, and particle orientation and phase transitions can profoundly influence the final properties of the material. Conventional detection methods can only obtain static structural information and cannot capture the formation and evolution of soft matter structures during processing and use.
[0004] Neutron scattering combined with rheology can characterize the structural changes of a sample under shear stress. However, because neutrons are widely distributed after emission, they cannot be precisely aligned with the sample, thus affecting the results of subsequent experiments. Utility Model Content
[0005] This application provides a sample collimation adjustment device for neutron scattering rheological experiments. The sample adjustment device is set between the laser equipment and the sample stage of the rheometer, which can realize the neutron beaming and enable the beamed neutrons to hit the rheological sample on the rheological stage, thereby achieving high-precision alignment and improving experimental results.
[0006] One embodiment of this application provides a sample collimation adjustment device for neutron scattering rheological experiments. The sample collimation adjustment device is disposed between a laser device and a rheometer sample stage, and includes: a first motion component for support on a substrate; a second motion component disposed on the first motion component, and the first motion component can drive the second motion component to move along a first axis; a third motion component disposed on the second motion component, and the second motion component can drive the third motion component to move along a second axis; and an aperture assembly disposed on the third motion component, and the third motion component can drive the aperture assembly to move along a third axis, wherein the first axis, the second axis, and the third axis are perpendicular to each other; the aperture assembly includes an aperture positioning sight with a crosshair slit for neutrons to pass through in order to focus the neutrons; the first motion component, the second motion component, and the third motion component are used to adjust the position of the aperture positioning sight so that the focused neutrons can hit the rheological sample on the rheometer stage.
[0007] In one embodiment, the first motion component includes a first guide rail, a first slider, and a first mounting component. The first guide rail extends along a first axial direction, the first slider is slidably disposed on the first guide rail and is capable of sliding along the first guide rail, the first mounting component is mounted on the first slider, and the second motion component is disposed on the first mounting component.
[0008] In one embodiment, the first motion component further includes a first driving member and a first fixing member, the first guide rail and the first driving member are disposed on the first fixing member, and the first driving member is connected to the first mounting member to drive the first mounting member to move along the first guide rail.
[0009] In one embodiment, the second motion component includes a second connector, a second guide rail, a second slider, and a second mounting component. The second connector is connected to the first motion component. The second guide rail is disposed on the second connector and extends along a second axial direction. The second slider is disposed on the second guide rail and is capable of sliding along the second guide rail. The second mounting component is disposed on the second slider. The third motion component is disposed on the second mounting component.
[0010] In one embodiment, the second motion component further includes a second driving member and a second fixing member. The second guide rail and the second driving member are disposed on the second fixing member, and the second fixing member is disposed on the second connecting member. The second driving member is connected to the second mounting member to drive the second mounting member to move along the second guide rail.
[0011] In one embodiment, the third motion component includes a third guide rail connected to the second motion component and extending along a third axis, and an aperture component is disposed on the third guide rail to move along the third axis.
[0012] In one embodiment, the aperture assembly includes a clamping member, an aperture fixing member, and an aperture positioning sight; the clamping member is connected to a third motion component, the aperture fixing member is mounted on the clamping member, and the aperture positioning sight is fixed to the aperture fixing member.
[0013] This application provides a sample collimation adjustment device for neutron scattering rheological experiments. The sample adjustment device is disposed between the laser equipment and the rheometer sample stage, and includes a first motion component, a second motion component, a third motion component, and an aperture component. The first motion component, the second motion component, and the third motion component can adjust the position of the aperture component in three-dimensional space. A cross slit is set on the aperture positioning crosshair to allow neutrons to pass through and to focus the neutrons so that the focused seeds can hit the rheological sample on the rheometer stage, thereby achieving high-precision alignment and improving experimental results. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the sample collimation adjustment device of the present utility model.
[0015] Figure 2 This is a front structural schematic diagram of the sample collimation adjustment device of this utility model application;
[0016] Figure 3 This is an exploded structural diagram of the sample collimation adjustment device of the present utility model.
[0017] Figure 4 This is a schematic diagram of the structure of the first motion component of this utility model application;
[0018] Figure 5 This is a schematic diagram of the structure of the second and third motion components of this utility model application;
[0019] Figure 6 This is a schematic diagram of the aperture assembly of the present utility model.
[0020] Reference numerals: Sample collimation adjustment device-100, first motion component-110, first guide rail-111, first slider-112, first mounting component-113, first drive component-114, first lead screw-1141, first handwheel-1142, first fixing component-115; second motion component-120, second connecting component-121, second guide rail-122, second slider-123, second mounting component-124, second drive component-125, second lead screw-1251, second handwheel-1252, second fixing component-126; third motion component-130, third guide rail-131; aperture assembly-140, aperture positioning sight-141, cross slit-1411, clamping component-142, support component-1421, clamp-1422, aperture fixing component-143. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0022] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0023] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0024] This application provides a sample collimation adjustment device 100 for neutron scattering rheological experiments. Please refer to [reference needed]. Figure 1-6 The sample collimation adjustment device 100 includes a first motion component 110, a second motion component 120, a third motion component 130, and an aperture component 140.
[0025] Please refer to Figure 1 and Figure 6The first motion component 110 is used to support the substrate. The second motion component 120 is disposed on the first motion component 110, and the first motion component 110 can drive the second motion component 120 to move along a first axis. The third motion component 130 is disposed on the second motion component 120, and the second motion component 120 can drive the third motion component 130 to move along a second axis. The aperture component 140 is disposed on the third motion component 130, and the third motion component 130 can drive the aperture component 140 to move along a third axis, wherein the first axis, the second axis, and the third axis are perpendicular to each other. The aperture component 140 includes an aperture positioning sight 141, which has a crosshair slit 1411 for neutrons to pass through in order to focus the neutrons. The first motion component 110, the second motion component 120, and the third motion component 130 are used to adjust the position of the aperture positioning sight 141 so that the focused neutrons can hit the rheological sample on the rheological stage.
[0026] This application, by setting a first motion component 110, a second motion component 120, and a third motion component 130 on the sample collimation adjustment device 100, enables the adjustment of the position of the aperture positioning crosshair 141 in three-dimensional space. Furthermore, a crosshair slit 1411 is set on the aperture positioning crosshair 144 to allow neutrons to pass through, thereby focusing the neutrons and ensuring that as many neutrons as possible strike the rheological sample on the rheological stage. Through the neutron focusing effect of the sample collimation adjustment device 100 and the position adjustment effect of the aperture positioning crosshair 141 by the various motion components, high-precision alignment of neutrons with the rheological sample can be achieved, improving the experimental results of neutron scattering rheological experiments.
[0027] In the embodiments of this application, the edge of the cross slit 1411 is a slit made of a material capable of absorbing neutrons. More specifically, the cross slit 1411 has a hollow structure, and the material of the aperture positioning sight 141 includes cadmium.
[0028] Please refer to Figure 3 The first motion component 110 includes a first guide rail 111, a first slider 112, and a first mounting component 113. The first guide rail 111 extends along a first axial direction. The first slider 112 is slidably disposed on the first guide rail 111 and is capable of sliding along the first guide rail 111. The first mounting component 113 is mounted on the first slider 112. The second motion component 120 is disposed on the first mounting component 113.
[0029] By setting the first guide rail 111, the aperture assembly 140 can be adjusted upward along the first axis, so that the laser can pass through the slit in the cross slit 1411 that is perpendicular to the first axis.
[0030] Please refer to Figure 4The first motion component 110 also includes a first drive member 114 and a first fixing member 115. The first guide rail 111 and the first drive member 114 are disposed on the first fixing member 115. The first drive member 114 is connected to the first mounting member 113 to drive the first mounting member 113 to move along the first guide rail 111.
[0031] In this embodiment, the first guide rail 111 and the first drive member 114 are disposed on the first fixing member 115. The first fixing member 115 is used to fix it to the rheometer support plate, so that when the position of the adjustment device is adjusted, the laser beam can move relative to the aperture positioning sight 141 in the first axis, so that the laser beam can pass through the slit in the cross slit 1411 that is perpendicular to the first axis.
[0032] The first driving member 114 includes a first lead screw and a first handwheel 1142. The first handwheel 1142 is rotatably connected to the first lead screw 1141. The first handwheel 1142 can push the first lead screw 1141 to move along the first axis, so as to push the first mounting member 113 to move along the first axis. In addition, the first lead screw 1141 can also be locked to the first fixing member 115.
[0033] Please refer to Figure 2-3 and Figure 5 The second motion component 120 includes a second connector 121, a second guide rail 122, a second slider 123, and a second mounting component 124. The second connector 121 is connected to the first motion component 110. The second guide rail 122 is disposed on the second connector 121 and extends along a second axis. The second slider 123 is disposed on the second guide rail 122 and can slide along the second guide rail 122. The second mounting component 124 is disposed on the second slider 123. The third motion component 130 is disposed on the second mounting component 124.
[0034] By setting the second guide rail 122, the aperture positioning reticle 141 can move along the second axis, so that the laser beam can pass through the intersection of the cross slit 1411.
[0035] Please refer to Figure 5 The second motion component 120 also includes a second drive member 125 and a second fixing member 126. The second guide rail 122 and the second drive member 125 are disposed on the second fixing member 126. The second fixing member 126 is disposed on the second connector 121. The second drive member 125 is connected to the second mounting member 124 to drive the second mounting member 124 to move along the second guide rail 122.
[0036] The second driving member 125 helps to drive the second sliding member 123 to slide along the second guide rail 122, so that when the second sliding member 123 drives the second mounting member 124 to move along the second axis, the laser beam can move relative to the aperture positioning reticle 141 in the second axis, so that the laser beam can pass through the intersection of the cross slit 1411.
[0037] It should be noted that cylindrical head screw slots are provided on both sides of the second fixing member 126. The cylindrical head screw slots can not only be used to set the second fixing member 126 on the second connecting member 121, but also, when the movement of the second sliding member 123 on the second guide rail 122 is insufficient to adjust the position of the aperture assembly 140 in the second axis, the second fixing member 126 can be installed at different positions on the second connecting member 121 through the cylindrical head screw slots to achieve fine adjustment of the second motion assembly 120 as a whole, thereby facilitating further precise adjustment of the aperture assembly 140 in the second axis.
[0038] The second driving member 125 includes a second lead screw 1251 and a second handwheel 1252. The second handwheel 1252 and the second lead screw 1251 are rotatably connected. The second lead screw 1251 can be pushed to move along the second axis by the disc handwheel, so as to push the second mounting member 124 to move along the second axis. It can also lock the second lead screw 1251 to the second fixing member 126.
[0039] Please refer to Figure 3 The third motion component 130 includes a third guide rail 131, which is connected to the second motion component 120 and extends along a third axis. The aperture component 140 is disposed on the third guide rail 131 to move along the third axis.
[0040] The third guide rail 131 facilitates the movement of the third motion component 130, which drives the aperture component 140, in the direction of laser emission. The first motion component 110 and the second motion component 120 can position the laser beam on a straight line where the rheological sample on the rheological stage is located. With the third guide rail 131, the laser beam can be further precisely positioned on the rheological sample.
[0041] Please refer to Figure 3 The aperture assembly 140 includes a clamping member 142, an aperture fixing member 143, and an aperture positioning sight 141. The clamping member 142 is connected to the third motion assembly 130, the aperture fixing member 143 is mounted on the clamping member 142, and the aperture positioning sight 141 is fixed to the aperture fixing member 143.
[0042] Specifically, the clamping member 142 includes a support member 1421 and a clamp 1422. The support member 1421 is detachably connected to the third guide rail 131 and can slide along the third guide rail 131. The clamp 1422 clamps the support member 1421. The aperture fixing member 143 is disposed on the clamp 1422, and the aperture positioning reticle 141 is disposed on the aperture fixing member 143. It should be noted that after adjusting the support member 1421 along the third guide rail 131, the support member 1421 can be fixed to the third guide rail 131 to prevent the aperture assembly 140 from moving as a whole.
[0043] The working principle of the sample collimation adjustment device 100 of this utility model is as follows: The sample collimation adjustment device 100 is installed between the laser equipment and the rheometer sample stage. The first fixing member 115 is fixed to the rheometer support foot. The laser equipment is turned on. The first lead screw 1141 is adjusted by the first handwheel 1142, so that the first lead screw 1141 pushes the first mounting member 113, so that the first mounting member 113 drives the first sliding member 112 to move along the first guide rail 111 in the first axis, thereby driving the second motion component 120, the third motion component 130 and the aperture component 140 to move in the first axis, so that the laser beam passes through the slit in the cross slit 1411 that is perpendicular to the first axis. Next, the second screw 1251 is adjusted by the second handwheel 1252, causing the second screw 1251 to push the second mounting component 124. This causes the second mounting component 124 to drive the second sliding component 123 to move along the second guide rail 122 in the second axis, thereby driving the third motion assembly 130 and the aperture assembly 140 to move in the second axis, allowing the laser beam to pass through the intersection of the cross slit 1411. After the position of the aperture assembly 140 in the first and second axes is determined, the support component 1421 is loosened on the third guide rail 131, and then slid along the third guide rail 131. When the laser beam passing through the cross slit 1411 is concentrated on the rheological sample on the rheological stage, the support component 1421 is tightened onto the third guide rail 131. This determines the position of the aperture assembly 140 in the third axis. Neutron scattering rheological experiments can then be performed.
[0044] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.
Claims
1. A sample collimation adjustment device for neutron scattering rheology experiments, characterized in that, The sample collimation adjustment device is arranged between a laser device and a rheometer sample stage, and comprises: a first movement assembly arranged on a base; a second movement assembly arranged on the first movement assembly and capable of moving along a first axis under the action of the first movement assembly; a third movement assembly arranged on the second movement assembly and capable of moving along a second axis under the action of the second movement assembly; and a diaphragm assembly arranged on the third movement assembly and capable of moving along a third axis under the action of the third movement assembly, the first axis, the second axis and the third axis being perpendicular to each other; the diaphragm assembly comprises a diaphragm positioning cross, which has a cross-shaped slit for passing neutrons to collimate the neutrons, and the first movement assembly, the second movement assembly and the third movement assembly are used to adjust the position of the diaphragm positioning cross so that the collimated neutrons can hit a rheological sample on the rheometer stage.
2. The sample collimation adjustment device of claim 1, wherein, The first movement assembly comprises a first guide rail, a first sliding member and a first mounting member, the first guide rail extends along a first axis, the first sliding member is slidingly arranged on the first guide rail and capable of sliding along the first guide rail, and the first mounting member is arranged on the first sliding member.
3. The sample collimation adjustment device of claim 2, wherein, The first movement assembly further comprises a first driving member and a first fixing member, the first guide rail and the first driving member are arranged on the first fixing member, and the first driving member is connected with the first mounting member to drive the first mounting member to move along the first guide rail.
4. The sample collimation adjustment device of claim 1, wherein, The second movement assembly comprises a second connecting member, a second guide rail, a second sliding member and a second mounting member, the second connecting member is connected with the first movement assembly, the second guide rail is arranged on the second connecting member and extends along a second axis, the second sliding member is arranged on the second guide rail and capable of sliding along the second guide rail, and the second mounting member is arranged on the second sliding member.
5. The sample collimation adjustment device of claim 4, wherein, The second movement assembly further comprises a second driving member and a second fixing member, the second guide rail and the second driving member are arranged on the second fixing member, and the second driving member is connected with the second mounting member to drive the second mounting member to move along the second guide rail.
6. The sample collimation adjustment device of claim 1, wherein, The third movement assembly comprises a third guide rail, which is connected with the second movement assembly and extends along a third axis, and the diaphragm assembly is arranged on the third guide rail to move along the third axis.
7. The sample collimation adjustment device of claim 1, wherein, The diaphragm assembly comprises a clamping member, a diaphragm fixing member and a diaphragm positioning cross, the clamping member is connected with the third movement assembly, the diaphragm fixing member is arranged on the clamping member, and the diaphragm positioning cross is arranged on the diaphragm fixing member.