阅读说明：本技术 一种用于小角散射实验的可变温自动换样装置 (A automatic device that trades of variable temperature for small angle scattering experiment ) 是由 胡海韬 李海洋 童欣 段钰锋 程贺 黄志强 袁宝 白波 张绍英 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种用于小角散射实验的可变温自动换样装置,包括：样品架,包括：样品架本体,加热机构,以及封装机构；样品架本体上设置有多排样品孔组,样品孔组包括多个用于放置样品的样品孔,样品孔贯穿样品架本体的厚度方向；加热机构包括用于对样品架本体进行加热的加热组件,和用于调节加热组件温度的控温组件；封装机构包括沿样品架本体的厚度方向设置在其相对两侧面的透光板；样品移动切换机构,其用于驱动样品架本体移动,以使各样品孔依次的切换至样品检测位。通过样品移动切换机构可以同时对多个样品孔进行小角散射实验,通过控温组件实现对加热组件所产生热量的温度的调节,从而可以在不同温度环境下对样品的微观结构进行分析。(The invention discloses a temperature-variable automatic sample changing device for a small-angle scattering experiment, which comprises: a sample holder, comprising: the sample rack comprises a sample rack body, a heating mechanism and a packaging mechanism; the sample rack body is provided with a plurality of rows of sample hole groups, each sample hole group comprises a plurality of sample holes for placing samples, and the sample holes penetrate through the thickness direction of the sample rack body; the heating mechanism comprises a heating component for heating the sample rack body and a temperature control component for adjusting the temperature of the heating component; the packaging mechanism comprises light-transmitting plates arranged on two opposite side surfaces of the sample rack body along the thickness direction of the sample rack body; and the sample moving switching mechanism is used for driving the sample rack body to move so as to enable each sample hole to be sequentially switched to the sample detection position. Can carry out the small angle scattering experiment to a plurality of sample holes simultaneously through sample removal switching mechanism, realize the regulation to the produced thermal temperature of heating element through accuse temperature subassembly to can carry out the analysis to the microstructure of sample under the different temperature environment.)

1. A variable temperature autosampler device for small angle scattering experiments, comprising:

a sample holder, comprising: the sample rack comprises a sample rack body, a heating mechanism and a packaging mechanism; the sample rack body is provided with a plurality of rows of sample hole groups, each sample hole group comprises a plurality of sample holes for placing samples, and the sample holes penetrate through the thickness direction of the sample rack body; the heating mechanism includes: the heating assembly is used for generating heat to heat the sample rack body, and the temperature control assembly is used for controlling and adjusting the temperature of the heat generated by the heating assembly; the packaging mechanism comprises light-transmitting plates arranged on two opposite side surfaces of the sample rack body along the thickness direction of the sample rack body;

the sample moving and switching mechanism is used for driving the sample frame body to move so as to enable each sample hole to be sequentially switched to a sample detection position.

2. The variable temperature autosampler apparatus for small angle scattering experiments according to claim 1, wherein said heating assembly comprises: the sample rack body is also provided with two heating holes which are respectively arranged above the uppermost row of the sample hole group and below the lowermost row of the sample hole group and are parallel to the sample hole group, and the heating pipes are arranged in the heating holes; the length of the heating well is not shorter than the length of the arrangement of the sample well group.

3. The apparatus of claim 2, wherein the temperature control assembly comprises: the temperature control system comprises a plurality of first temperature sensors, two second temperature sensors, a data acquisition instrument and a temperature control instrument; the sample rack body is also provided with a plurality of temperature measuring holes and two temperature control holes, the plurality of temperature measuring holes correspond to the plurality of rows of sample hole groups one by one, and the temperature measuring holes are arranged at one end of each sample hole group; the two temperature control holes are respectively arranged above the heating holes in the uppermost row and below the heating holes in the lowermost row, and the temperature control holes are parallel to the heating holes; the first temperature sensor is arranged in the temperature measuring hole and is used for measuring the temperature of the sample in each sample hole in the sample hole group; the second temperature sensor is arranged in the temperature control hole and is used for measuring the temperature of the heating pipe in the heating hole; the first temperature sensor is connected with a first input end of the data acquisition instrument, the second temperature sensor and the heating pipe are connected with the temperature control instrument, and the temperature control instrument is connected with a second input end of the data acquisition instrument.

4. The apparatus according to claim 3, wherein the sample holder body is a plate-like structure having two protrusions respectively located above the uppermost row of the sample hole groups and below the lowermost row of the sample hole groups; the upper heating hole and the temperature control hole are arranged on the upper protruding part, and the lower heating hole and the temperature control hole are arranged on the lower protruding part.

5. The apparatus of claim 1, wherein the sample movement switching mechanism comprises: the sample rack comprises a horizontal driving assembly and a lifting driving assembly, wherein the lifting driving assembly is installed on the horizontal driving assembly, a sample rack body is installed on the lifting driving assembly, the horizontal driving assembly is used for outputting reciprocating movement along the horizontal direction so as to sequentially switch a plurality of sample holes in a sample hole group along the horizontal direction, and the lifting driving assembly is used for outputting reciprocating movement along the vertical direction so as to sequentially switch an upper row of the sample hole group to a lower row of the sample hole group along the vertical direction.

6. The apparatus of claim 5, wherein the sample holder further comprises: an insulation mounted between the sample holder body and the lift drive assembly.

7. The variable-temperature automatic sample changing device for the small-angle scattering experiment as recited in claim 1, wherein a plurality of mounting holes are further formed in the sample holder body, the mounting holes are distributed around the sample holes, a plurality of through holes are further formed in the light-transmitting plates on two opposite side surfaces of the sample holder body, and the mounting holes and the through holes are in one-to-one correspondence so that the two light-transmitting plates are respectively fixed on two side surfaces of the sample holder body through fasteners.

8. The apparatus according to claim 1, wherein the plurality of rows of sample well groups are parallel to each other, and the distance between two adjacent sample wells in the sample well groups is equal to the distance between two adjacent rows of sample well groups; and the sample holes in two adjacent rows of sample hole groups correspond to one another.

9. The variable temperature autosampler apparatus for small angle scattering experiments according to claim 1, wherein said sample holder body is made of one of aluminum alloy material, copper material.

10. The apparatus of claim 1, wherein the transparent plate is made of one of a diamond wafer and single crystal sapphire.

Technical Field

The application relates to the technical field of material analysis, in particular to a temperature-variable automatic sample changing device for a small-angle scattering experiment.

Background

In the scattering experiment process of neutrons, X rays and the like, neutrons or X rays are emitted into a sample material, and the scattering phenomenon is analyzed and observed through a detector, so that the microstructure characteristics of the sample material can be obtained. The small-angle scattering is coherent scattering occurring near incident beams such as neutrons and X-rays, is caused by the variation of scattering length density in the range from several nanometers to several hundred nanometers in an experimental sample, is an important tool for acquiring nano-scale structural information in a material, has the characteristics of good statistics, simple sample preparation and the like, and has unique advantages in the aspect of material microstructure analysis.

At present, in the small angle scattering experimental apparatus, it is difficult to obtain the microstructure information of the sample inside under different temperatures through the mode of changing the ambient temperature, and the existing small angle scattering experimental apparatus has a complex structure and higher production cost, and can only be used for a single sample experiment at every time, and the experimental efficiency is low.

Disclosure of Invention

The application aims at providing a but, temperature change automatic sample changing device for small angle scattering experiment not only can realize experimenting the sample under the different temperatures, still can be simultaneously to a plurality of samples automatic sample changing in proper order, effectively improve experimental efficiency.

The application provides a but, temperature change automatic sample changing device for small angle scattering experiment includes:

a sample holder, comprising: the sample rack comprises a sample rack body, a heating mechanism and a packaging mechanism; the sample rack body is provided with a plurality of rows of sample hole groups, each sample hole group comprises a plurality of sample holes for placing samples, and the sample holes penetrate through the thickness direction of the sample rack body; the heating mechanism includes: the heating assembly is used for generating heat to heat the sample rack body, and the temperature control assembly is used for controlling and adjusting the temperature of the heat generated by the heating assembly; the packaging mechanism comprises light-transmitting plates arranged on two opposite side surfaces of the sample rack body along the thickness direction of the sample rack body;

the sample moving and switching mechanism is used for driving the sample frame body to move so as to enable each sample hole to be sequentially switched to a sample detection position.

Further, the heating assembly includes: the sample rack body is also provided with two heating holes which are respectively arranged above the uppermost row of the sample hole group and below the lowermost row of the sample hole group and are parallel to the sample hole group, and the heating pipes are arranged in the heating holes; the length of the heating well is not shorter than the length of the arrangement of the sample well group.

Further, the temperature control assembly comprises: the temperature control system comprises a plurality of first temperature sensors, two second temperature sensors, a data acquisition instrument and a temperature control instrument; the sample rack body is also provided with a plurality of temperature measuring holes and two temperature control holes, the plurality of temperature measuring holes correspond to the plurality of rows of sample hole groups one by one, and the temperature measuring holes are arranged at one end of each sample hole group; the two temperature control holes are respectively arranged above the heating holes in the uppermost row and below the heating holes in the lowermost row, and the temperature control holes are parallel to the heating holes; the first temperature sensor is arranged in the temperature measuring hole and is used for measuring the temperature of the sample in each sample hole in the sample hole group; the second temperature sensor is arranged in the temperature control hole and is used for measuring the temperature of the heating pipe in the heating hole; the first temperature sensor is connected with a first input end of the data acquisition instrument, the second temperature sensor and the heating pipe are connected with the temperature control instrument, and the temperature control instrument is connected with a second input end of the data acquisition instrument.

Further, the sample rack body is a plate-shaped structure, and two protrusions are arranged on the plate-shaped structure and are respectively positioned above the uppermost row of sample hole groups and below the lowermost row of sample hole groups; the upper heating hole and the temperature control hole are arranged on the upper protruding part, and the lower heating hole and the temperature control hole are arranged on the lower protruding part.

Further, the sample movement switching mechanism includes: the sample rack comprises a horizontal driving assembly and a lifting driving assembly, wherein the lifting driving assembly is installed on the horizontal driving assembly, a sample rack body is installed on the lifting driving assembly, the horizontal driving assembly is used for outputting reciprocating movement along the horizontal direction so as to sequentially switch a plurality of sample holes in a sample hole group along the horizontal direction, and the lifting driving assembly is used for outputting reciprocating movement along the vertical direction so as to sequentially switch an upper row of the sample hole group to a lower row of the sample hole group along the vertical direction.

Further, the sample holder further comprises: an insulation mounted between the sample holder body and the lift drive assembly.

Further, still be provided with a plurality of mounting holes on the sample frame body, a plurality of mounting holes distribute around a plurality of sample holes, still be provided with a plurality of via holes on the light-passing board on the relative both sides face of sample frame body, a plurality of mounting holes with a plurality of via hole one-to-one to fix two the light-passing board respectively on two sides of sample frame body through the fastener.

Further, the multiple rows of sample hole groups are parallel to each other, and the distance between two adjacent sample holes in the sample hole groups is equal and equal to the distance between two adjacent rows of sample hole groups; and the sample holes in two adjacent rows of sample hole groups correspond to one another.

Further, the sample holder body is made of one of an aluminum alloy material and a copper material.

Further, the light-transmitting plate is made of one of a diamond wafer and single crystal sapphire.

According to the automatic sample changing device of variable temperature for small angle scattering experiment that this application provided, can carry out the small angle scattering experiment to a plurality of sample holes simultaneously through sample removal switching mechanism, realize the regulation to the produced thermal temperature of heating element through accuse temperature subassembly to can carry out the analysis to the microstructure of sample under different temperature environment.

Drawings

FIG. 1 is a first schematic diagram of a variable temperature autosampler device for small angle scattering experiments provided in the present application;

FIG. 2 is a second schematic diagram of the temperature-variable automatic sample changing device for small-angle scattering experiments provided in the present application;

fig. 3 is a schematic structural diagram of a sample holder body and a packaging mechanism in the variable-temperature autosampler device for small-angle scattering experiments provided by the present application;

fig. 4 is a schematic structural diagram of a sample holder body in the variable temperature autosampler for small angle scattering experiments provided in the present application.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The application provides a but, automatic device that trades of variable temperature for small angle scattering experiment, the beam current that the scattering spectrometer was launched is incided the sample to the direction of the other end from the one end in sample hole along the axial direction in sample hole on to carry out the small-angle scattering experiment to the sample, heat the sample through heating element, realize the regulation to the produced thermal temperature of heating element through accuse temperature subassembly, thereby can carry out the analysis to the microstructure of sample under different temperature environment. In the following embodiments, the incident beam may be a beam of neutrons, X-rays, etc., and the sample may be a semiconductor material, a magnetic material, a bio-based material, etc.

Referring to fig. 1 to 4, the present embodiment provides a variable temperature autosampler for small angle scattering experiments, which includes: a sample holder 100 and a sample movement switching mechanism 200.

The sample holder 100 mainly includes: as shown in fig. 4, a plurality of rows of sample hole sets 111 are disposed on the sample holder body 11, each row of sample hole set 111 includes a plurality of sample holes 1111, and the sample holes 1111 are used for placing samples. So, can carry out the small angle scattering experiment to a plurality of samples in an experimental process, improve experimental efficiency. Specifically, all the sample holes 1111 penetrate through the thickness direction of the sample holder body 11. In other words, a first port of the sample hole 1111 in the axial direction thereof forms an incident end of the beam, a second port of the sample hole 1111 in the axial direction thereof forms an exit end of the beam, and the beam can be incident on the sample in the sample hole 1111 from the incident end and exit from the exit end, so that the small-angle scattering experiment can be performed on the sample.

The heating mechanism 12 includes: heating element and accuse temperature subassembly, heating element are used for producing the heat and heat in order to heat sample holder body 11, and sample holder body 11 adopts the heat conduction material to make to can heat the produced heat transfer of heating element and give the sample in sample hole 1111, and then heat the sample. The temperature control assembly is used for controlling and adjusting the temperature of heat generated by the heating assembly, and further adjusting the temperature of the sample, so that small-angle scattering experiments can be performed on the sample at different temperatures to analyze the microstructure of the sample at different temperatures.

In one embodiment, the sample holder body 11 is made of one of aluminum alloy material and copper material, especially aluminum alloy material, which is not only light in weight and not easy to corrode, but also has good thermal conductivity.

As shown in fig. 3, the packaging mechanism 13 includes two transparent plates 131, and the two transparent plates 131 are respectively disposed on two opposite sides of the sample holder body 11 along the thickness direction of the sample holder body 11. On the one hand, two light-passing boards 131 can supply the beam to pass to carry out the small-angle scattering experiment to the sample, and on the other hand, two light-passing boards 131 are installed on the relative both sides face of sample frame body 11, can play the encapsulation effect to the sample in sample hole 1111, thereby guarantee the unblocked of the beam of incidenting and survey light path.

The sample rack body 11 is mounted on the sample moving and switching mechanism 200, and the sample moving and switching mechanism 200 is used to drive the sample rack body 11 to move, so that the sample holes 1111 are sequentially switched to the sample detection position. It can be understood that the sample movement switching mechanism 200 drives the sample holder body 11 to move, so that the sample holes 1111 are sequentially switched to the sample detection position, and the beam is incident on the sample placed in the sample holes 1111 at the sample detection position, so as to perform the small angle scattering experiment on the sample.

In one embodiment, the two transparent plates 131 are made of one of a diamond wafer and single crystal sapphire. Of course, the two transparent plates 131 may be made of a diamond wafer and single crystal sapphire, respectively.

Of course, in other embodiments, the two opposite side surfaces of the sample holder body 11 may also adopt a non-transparent encapsulation structure, and the beam can pass through only by arranging the visible window at the position corresponding to the sample hole 1111.

In one embodiment, the heating assembly comprises: and two heating pipes, wherein two heating holes 112 are further provided on the sample holder body 11, the two heating holes 112 are respectively provided above the uppermost row of sample hole groups 111 and below the lowermost row of sample hole groups 111, and both the two heating holes 112 are parallel to the sample hole groups 111, and the two heating pipes are respectively installed in the two heating holes 112. In other words, the two heating holes 112 are symmetrical to each other, so that each sample hole 1111 can be heated uniformly by the heating pipes in the heating holes 112 which are symmetrical to each other, and the temperature difference between each sample hole 1111 is less than 0.4 ℃.

In a preferred embodiment, the length of both heating holes 112 is not shorter than the length of the sample hole set 111, that is, the length of the heating tube installed in the heating holes 112 is not shorter than the length of the sample hole set 111, so that it is ensured that all the samples in the sample holes 1111 are heated and heated uniformly.

In the present embodiment, the sample holder body 11 has a rectangular plate-like structure, and the sample holder body 11 having the rectangular plate-like structure is placed upright. Specifically, one of the long sides of the sample holder body 11 of the rectangular plate-like structure is placed at the bottom, and the other long side is placed at the top. As shown in fig. 4, the dashed line segments in the figure represent where the sample well groups 111 are located, in order to more clearly express the sample well groups. And all the sample wells 1111 in each row of the sample well group 111 are arranged in a direction parallel to the long side of the sample rack body 11 having the rectangular plate-like structure. That is, the sample well groups 111 of each row are parallel to each other. In this embodiment, the distances between two adjacent sample holes 1111 in all the sample hole groups 111 are equal, and are also equal to the distances between two adjacent rows of sample hole groups 111, and the sample holes 1111 in two adjacent rows of sample hole groups 111 are in one-to-one correspondence, so that the sample holes 1111 can be uniformly heated.

In one embodiment, the temperature control assembly includes: a plurality of first temperature sensors, two second temperature sensors, a data collector 122, and a temperature controller 123. The sample holder body 11 is further provided with a plurality of temperature measurement holes 113 and two temperature control holes 114, the number of the temperature measurement holes 113 is the same as the number of the sample hole groups 111, all the temperature measurement holes 113 are in one-to-one correspondence with all the sample hole groups 111, and the temperature measurement holes 113 corresponding to the respective sample hole groups 111 are provided at one end of the sample hole group 111. Two temperature control holes 114 are respectively disposed above the uppermost row of heating holes 112 and below the lowermost row of heating holes 112, and the temperature control holes 114 and the heating holes 112 are parallel to each other. The number of the first temperature sensors is the same as the number of the temperature measuring holes 113, each first temperature sensor is arranged in each temperature measuring hole 113, and the first temperature sensor in the temperature measuring hole 113 corresponding to each row of sample hole group 111 is used for measuring the temperature received by the sample in each sample hole 1111 in the sample hole group 111. Two second temperature sensors are respectively arranged in the two temperature control holes 114, and the second temperature sensors are used for measuring the temperature of the heating pipe in the heating hole 112 corresponding to the second temperature sensors. All the first temperature sensors are connected with the first input end of the data acquisition instrument 122, all the second temperature sensors and all the heating pipes are connected with the temperature controller 123, and the temperature controller 123 is connected with the second input end of the data acquisition instrument 122. The data collector 122 collects the temperature of the sample measured by the first temperature sensor, and transmits the temperature information to the temperature controller 123, the temperature controller 123 controls the temperature of the heating pipe, and the second temperature sensor measures the temperature of the heat generated by the heating pipe, so that the temperature of the heat generated by the heating pipe can be adjusted to meet the requirements of different samples.

In this embodiment, two protrusions 115 are further provided on the sample holder body 11 having a rectangular plate-like structure, and the two protrusions 115 are located above the uppermost row of sample hole groups 111 and below the lowermost row of sample hole groups 111, respectively. The upper heating hole 112 and the temperature control hole 114 are formed in the upper protruding portion 115, and the lower heating hole 112 and the temperature control hole 114 are formed in the lower protruding portion 115.

In one embodiment, as shown in fig. 4, a plurality of mounting holes 116 are further disposed on the sample holder body 11, and all the mounting holes 116 are distributed around all the sample holes 1111, as shown in fig. 3, a plurality of through holes 1311 are further disposed on the transparent plates 131 on two opposite sides of the sample holder body 11, and the number of the mounting holes 116 is the same as that of the through holes 1311, and the positions of the mounting holes 116 are in one-to-one correspondence, so that two transparent plates 131 are respectively fixed on two opposite sides of the sample holder body 11 by fasteners (e.g., bolts and nuts).

With continued reference to fig. 3, a plurality of further vias 1312 are provided on both of the two transparent plates 131 in a number and position consistent with the temperature sensing holes 113 to facilitate the mounting of the first temperature sensor.

In one embodiment, the sample moving switching mechanism 200 includes: horizontal drive assembly 21 and lift drive assembly 22, lift drive assembly 22 installs the power take off end at horizontal drive assembly 21, and sample holder body 11 installs the power take off end at lift drive assembly 22. The horizontal driving assembly 21 is configured to output reciprocating movement in the horizontal direction to sequentially switch the sample holes 1111 in the single row of the sample hole groups 111 to the sample detection site in the horizontal direction, and the elevation driving assembly 22 is configured to output reciprocating movement in the vertical direction to sequentially switch the upper row of the sample hole groups 111 to the lower row of the sample hole groups 111 in the vertical direction.

Specifically, as shown in fig. 4, fig. 4 shows five rows of sample hole groups 111, which are respectively referred to as a first row of sample hole group, a second row of sample hole group, a third row of sample hole group, a fourth row of sample hole group, and a fifth row of sample hole group from top to bottom, the number of sample holes in each row of sample hole groups is the same, and the first sample hole is referred to as the first sample hole in the direction from left to right in fig. 4, and so on. Under the initial condition, the lifting driving component 22 outputs the motion along the vertical direction, so that the first row of sample hole groups move to the same line with the sample detection position, and then the horizontal driving component 21 outputs the motion along the horizontal direction, so that the first sample hole of the first row of sample hole groups is positioned at the sample detection position, and the small angle experiment is carried out on the sample in the sample hole through the incident beam. Thereafter, the horizontal driving assembly 21 continues to output the movement in the horizontal direction, so that the second sample well of the first row of sample well groups is located at the sample detection position, and so on until the other sample wells of the first row of sample well groups sequentially move to the sample detection position. Then, the lifting driving component 22 outputs the movement along the vertical direction to switch to the second row of sample hole groups, and repeats the above-mentioned action for the first row of sample hole groups until the test for the samples in each sample hole in the third row of sample hole groups, the fourth row of sample hole groups and the fifth row of sample hole groups is completed. Therefore, in one experiment process, a plurality of samples are tested, and the experiment efficiency is obviously improved.

In this application, the aforementioned sample holder 100 further includes: and an insulating member 14, the insulating member 14 being installed between the sample holder body 11 and the elevation driving unit 22, so that loss of heat can be prevented.

In a preferred embodiment, the thermal insulation 14 is made of a ceramic material.

In one embodiment, the horizontal driving assembly 21 includes: the horizontal driving mechanism comprises a base 211, a lead screw 212, a moving block 213, two guide rails 214 arranged on the base 211, two sliding blocks 215 arranged on the moving block 213, and a horizontal driving motor 216, wherein the lead screw 212 is arranged along the horizontal direction, and the lead screw 212 is rotatably arranged on the base 211. The screw 212 is screwed with a nut, the moving block 213 is fixed on the nut, the two guide rails 214 are parallel to the length direction of the screw 212 and are respectively distributed on two sides of the screw 212, the two sliding blocks 215 are respectively arranged on the two guide rails 214 in a sliding manner, and the motor shaft end of the horizontal driving motor 216 is fixedly connected with one end of the screw 212. The horizontal driving motor 216 drives the lead screw 212 to rotate, and the nut on the lead screw 212 converts the rotation of the lead screw 212 into the translation motion along the horizontal direction, so as to drive the moving block 213 to move along the horizontal direction.

In one embodiment, lift drive assembly 22 includes: a connecting part 221 fixed on the moving block 213, a scissor type lifting mechanism 222 arranged on the connecting part 221, a lifting driving motor 223, and a slide block 224 connected to the motor shaft end of the lifting driving motor 223. The sample rack body 11 is fixed on the top end of the scissors type lifting mechanism 222, the lifting driving motor 223 can output reciprocating motion in the horizontal direction, the slider 224 is slidably disposed on the scissors type lifting mechanism 222 and is hinged to one of the arms of the scissors type lifting mechanism 222, so that the scissors type lifting mechanism 222 converts the horizontal motion output by the lifting driving motor 223 into motion in the vertical direction to drive the sample rack body 11 to reciprocate in the vertical direction.

As shown in fig. 2, the horizontal driving motor 216 and the lifting driving motor 223 are electrically connected to the motor controller 23, and the motor controller 23 controls the horizontal driving motor 216 and the lifting driving motor 223 to output corresponding motions through a set program, so that the sample holes 1111 are sequentially moved to the sample detection position.

In this embodiment, the motor controller 23 is connected to the host 300 through the first interface 301, the data collector 122 and the temperature controller 123 are connected to the host 300 through the second interface, and the host 300 controls the devices to operate.

The specific working process of the temperature-variable automatic sample changing device for the small-angle scattering experiment is as follows:

the sample is placed in the sample well 1111 and the two light-transmitting plates 131 are fixed to the opposite sides of the sample holder body 11, thereby enclosing the sample in the sample well 1111.

The motor controller 23, the horizontal driving motor 216 and the elevation driving motor 223 are started, so that the first sample hole in the first row of sample hole groups is at the sample detection position through the set program of the motor controller 23.

The heating tube is activated by the temperature controller 123 and the sample holder body 11 is heated to the desired temperature of the sample.

And emitting beam current through a scattering spectrometer to perform a small-angle scattering experiment on the sample in the first sample hole.

After the sample in the first sample well is tested, the second sample well is moved to the sample testing position under the action of the motor controller 23.

And repeating the steps until the last sample hole is moved to the sample detection position so as to detect the sample in the last sample hole.

And after the last sample is detected, reducing the temperature of the sample rack body to room temperature through the temperature controller.

In conclusion, the temperature-variable automatic sample changing device for the small-angle scattering experiment provided by the embodiment can simultaneously carry out the small-angle scattering experiment on a plurality of sample holes through the sample moving and switching mechanism, and realizes the adjustment of the temperature of the heat generated by the heating assembly through the temperature control assembly, so that the microstructure of the sample can be analyzed in different temperature environments.

The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the inventive concepts herein.