Sample container for infrared spectrum acquisition and infrared spectrum acquisition system
By designing a sample container for infrared spectral acquisition with a pressed sample structure, the problem of insufficient sample volume or insufficient coverage depth is solved, and the accuracy of rapid compression and spectral acquisition of a small number of samples is achieved.
Patent Information
- Application Number
- CN202323536152.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-25
AI Technical Summary
In existing infrared spectroscopy analysis technologies, if the sample volume is too small or the coverage depth is too small, it is difficult to accurately collect infrared spectroscopy, resulting in insufficient diffuse reflection.
A sample container for infrared spectrum acquisition is designed, including a sample cup and a cup lid. A sample compression structure is installed on the cup lid. The cross-sectional area of the sample compression structure gradually decreases from the cover body to the side away, and can be compacted in the sample cup. Sample, solve the problem of insufficient sample volume or small coverage depth.
Fast continuous compression and enhanced diffuse reflection of a small number of samples are achieved, ensuring the accuracy of infrared spectroscopy acquisition, and solving the problem of insufficient diffuse reflection caused by too small sample volume or too small coverage depth.
Smart Images
Figure CN222318770U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to an infrared spectrum testing device, and in particular to a sample container for infrared spectrum collection and an infrared spectrum collection system. Background Art
[0002] Near infrared spectroscopy analysis technology can reflect the state of samples in real time, is simple to operate, does not damage samples, and does not require sample pretreatment. Infrared spectrometer is an instrument that uses the absorption characteristics of substances to infrared radiation of different wavelengths to perform near infrared spectroscopy analysis on molecular structure and chemical composition.
[0003] The accuracy of near-infrared spectroscopy analysis results is affected by many factors such as sample particle size, uniformity, and packing density. In related technologies, when performing near-infrared scanning on solid samples, the solid samples are generally placed in a sample cup for scanning and detection. When the amount of sample in the sample cup is too small to cover the sample cup's accommodating cavity, or when the coverage depth is too small, it is easy to cause insufficient diffuse reflection, making it difficult to accurately collect infrared spectra.
[0004] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Summary of the invention
[0005] The purpose of the present application is to provide a sample container and an infrared spectrum collection system for infrared spectrum collection. The sample pressing operation can be achieved by simply covering the sample cup with a cup lid, which is conducive to placing a sufficient amount of sample in the containing cavity, thereby solving the problem of too little sample in the sample cup or too small coverage depth making it difficult to accurately collect infrared spectra.
[0006] The first aspect of the present application provides a sample container for collecting infrared spectra, comprising:
[0007] A sample cup, comprising a cup body and a receiving cavity disposed in the cup body, wherein the receiving cavity is configured to receive a sample; and
[0008] The cup cover comprises a cover body and a sample pressing structure, wherein the cover body is configured to cover the sample cup to close the containing cavity, and the sample pressing structure is configured to protrude downward relative to the cover body, and is located in the containing cavity to compact the sample in the containing cavity when the cover body covers the sample cup to close the containing cavity, wherein the cross-sectional area of the sample pressing structure gradually decreases from the cover body to the side away from the cover body.
[0009] In some embodiments of the sample container for collecting infrared spectra, the cup body includes a first cylinder, and the hollow portion of the first cylinder forms the accommodating cavity.
[0010] In some embodiments of the sample container for collecting infrared spectra, the accommodating cavity is an axial through hole of the first cylinder.
[0011] In some embodiments of the infrared spectrum collection sample container,
[0012] The diameter D1 of the first cylinder is Φ35-Φ44 mm; and / or
[0013] The diameter D2 of the axial through hole is Φ9.5-Φ12 mm; and / or
[0014] The height H1 of the first cylinder is 9-15 mm.
[0015] In some embodiments of the sample container for infrared spectrum collection, the accommodating cavity has a central axis, and when the cover body is covered on the sample cup to close the accommodating cavity, the sample pressing structure is a rotating body whose axial direction is the same as the extension direction of the central axis of the accommodating cavity.
[0016] In the sample container for collecting infrared spectra in some embodiments, the sample pressing structure is a cone, a truncated cone, a spherical crown or an ellipsoidal crown.
[0017] In some embodiments of the sample container for infrared spectrum collection, the cover body is a second cylinder, and the sample pressing structure is a rotating body coaxial with the second cylinder; wherein,
[0018] The diameter D1 of the first cylinder is greater than the diameter D3 of the second cylinder, and the difference between the diameter D1 of the first cylinder and the diameter D3 of the second cylinder is 2 mm to 10 mm; and / or
[0019] The height H2 of the second cylinder is 5 mm to 8 mm; and / or
[0020] The diameter D2 of the axial through hole is larger than the diameter D4 of the interface between the rotating body and the second cylinder, and the difference between the diameter D2 and the diameter D4 of the interface is 1 mm to 3 mm; and / or
[0021] The height H1 of the first cylinder is greater than the height H3 of the rotating body, and the difference between the height H1 and the height H3 of the rotating body is 4 mm to 6 mm.
[0022] In some embodiments of the infrared spectrum collection sample container,
[0023] The sample cup is made of metal material; and / or
[0024] The cup cover is made of metal material.
[0025] The second aspect of the present application provides an infrared spectrum acquisition system, comprising:
[0026] An infrared spectrometer, including a sample test position for placing a sample container for collecting infrared spectra; and
[0027] The sample container for infrared spectrum collection described in the first aspect of the present application is placed in the sample testing position.
[0028] In the sample container for collecting infrared spectra in some embodiments, the sample is shredded tobacco.
[0029] Based on the sample container for infrared spectrum collection provided by the present application, after the cup cover is covered on the sample cup, since a sample pressing structure is arranged on the cup cover and the cross-sectional area of the sample pressing structure gradually decreases from the cover body to the side away from the cover body, the sample pressing structure can easily enter the receiving cavity of the sample cup, allowing the sample pressing structure to quickly and continuously press a small amount of sample, making it easy to implement the sample pressing operation, and the shape of the sample pressing structure 22 is conducive to enhancing diffuse reflection, which is conducive to solving the problem that the sample amount is too small to cover the internal space of the receiving cavity, or the coverage depth is too small to cause insufficient diffuse reflection and make it difficult to accurately collect infrared spectra.
[0030] The infrared spectrum collection system of the present application has the advantages of the sample container for infrared spectrum collection of the embodiment of the present application.
[0031] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0033] Figure 1 This is a schematic cross-sectional structure diagram of a sample container for collecting infrared spectra according to an embodiment of the present application.
[0034] Figure 2 for Figure 1 A schematic cross-sectional view of the sample cup of the sample container for collecting infrared spectra according to the illustrated embodiment.
[0035] Figure 3 for Figure 1 A schematic cross-sectional view of the cup cover of the sample container for collecting infrared spectrum according to the illustrated embodiment. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0038] In the description of the present application, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present application.
[0039] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0041] like Figures 1 to 3 As shown, the embodiment of the present application provides a sample container for collecting infrared spectrum. The sample container for collecting infrared spectrum includes a sample cup 10 and a cup cover 20.
[0042] The sample cup 10 includes a cup body 11 and a receiving cavity 12 disposed in the cup body 11. The receiving cavity 12 is configured to receive a sample.
[0043] The cup cover 20 includes a cover body 21 and a sample pressing structure 22. The cover body 21 is configured to cover the sample cup 10 to close the receiving cavity 12. The sample pressing structure 22 is configured to protrude downward relative to the cover body 21. When the cover body 21 covers the sample cup 10 to close the receiving cavity 12, the cover body 21 is located in the receiving cavity 12 to press the sample in the receiving cavity 12. Figure 1 and Figure 3 As shown, the cross-sectional area of the pressing structure 22 gradually decreases from the cover body 21 to the side away from the cover body 21 .
[0044] In the sample container for infrared spectrum collection of the embodiment of the present application, after the cup cover 20 is covered on the sample cup 10, since the sample pressing structure 22 is provided on the cup cover 20, and the cross-sectional area of the sample pressing structure 22 gradually decreases from the cover body 21 to the side away from the cover body 21, the sample pressing structure 22 can easily enter the accommodating cavity 12 of the sample cup 10, allowing the sample pressing structure 22 to quickly and continuously press a small amount of sample, and the sample pressing operation is easy to implement. In addition, the shape of the sample pressing structure 22 is conducive to enhancing diffuse reflection, which is conducive to solving the problem that the sample amount is too small to cover the internal space of the accommodating cavity 12, or the coverage depth is too small to cause insufficient diffuse reflection and infrared spectrum collection cannot be performed.
[0045] like Figures 1 to 3 As shown, in some embodiments of the sample container for collecting infrared spectra, the cup body 11 includes a first cylinder, and the hollow portion of the first cylinder forms a receiving cavity 12. The sample cup is set as the first cylinder, which is easy to process and easy to control in size.
[0046] In some embodiments of the sample container for collecting infrared spectra, the accommodating cavity 12 is an axial through hole of the first cylinder.
[0047] In some embodiments of the sample container for collecting infrared spectra, the diameter D1 of the first cylinder is Φ35-Φ44 mm; and / or the diameter D2 of the axial through hole is Φ9.5-Φ12 mm; and / or the height H1 of the first cylinder is 9-15 mm.
[0048] Reasonable setting of the sample cup size helps ensure that the sample is accurately tested while preventing the sample cup from being too large, making it difficult for the sample amount to meet the sample cup filling and testing requirements due to a relatively small sample amount.
[0049] In some embodiments of the sample container for infrared spectrum collection, the accommodating cavity 12 has a central axis. When the cover body 21 covers the sample cup 10 to close the accommodating cavity 12, the sample pressing structure 22 is a rotating body whose axial direction is the same as the extension direction of the central axis of the accommodating cavity 12.
[0050] The sample pressing structure 22 is configured as a rotating body, which is easy to process and easy to control in size.
[0051] In some embodiments of the sample container for infrared spectrum collection, the sample pressing structure 22 is a cone, a truncated cone, a spherical crown or an ellipsoidal crown. The sample pressing structure 22 is set to be a cone, a truncated cone, a spherical crown or an ellipsoidal crown, which is easy to process, easy to control the size, and easy to implement the sample pressing operation.
[0052] In some embodiments of the sample container for collecting infrared spectra, the cover body 21 is a second cylinder, and the sample pressing structure 22 is a rotating body coaxial with the second cylinder.
[0053] The diameter D1 of the first cylinder is greater than the diameter D3 of the second cylinder, and the difference with the diameter D3 of the second cylinder is 2mm~10mm; and / or the height H2 of the second cylinder is 5mm~8mm; and / or the diameter D2 of the axial through hole is greater than the diameter D4 of the interface between the rotating body and the second cylinder, and the difference with the diameter D4 of the interface is 1mm~3mm; and / or the height H1 of the first cylinder is greater than the height H3 of the rotating body, and the difference with the height H3 of the rotating body is 4mm~6mm.
[0054] The cover body 21 of the cup cover is set as a second cylinder, and the sample pressing structure 22 is set as a rotating body, which is easy to process and easy to control in size. Reasonable setting of the size of the cup cover 20 is conducive to the cup cover 20 matching with the sample cup 10, covering the sample cup 10 tightly, and facilitating the sample pressing structure 22 to match with the accommodating cavity 12 to realize the sample pressing operation.
[0055] In the sample container for collecting infrared spectra in some embodiments, the sample cup 10 is made of a metal material; and / or the cup cover 20 is made of a metal material.
[0056] For example, the sample cup 10 can be made of at least one of stainless steel and copper; the cup cover 20 can be made of at least one of stainless steel and copper.
[0057] The sample cup 10 is made of metal material and / or the cup cover 20 is made of metal material, so that the processing dimensions of the sample cup 10 and the cup cover 20 are accurate and stable. After the cup cover 20 is matched with the sample cup 10, the sample pressing structure of the cup cover 20 is easy to enter the accommodating cavity 12 to automatically press the sample. It is also beneficial for light to pass through the sample through the collection hole to irradiate the sample and be reflected by the inner wall of the sample cup 10 and / or the surface of the cup cover 20 that matches the accommodating cavity 12. The reflected light is diffusely reflected back to the collection hole, so that the infrared spectrometer can collect spectral information.
[0058] The second aspect of the present application provides an infrared spectrum collection system. The infrared spectrum collection system includes an infrared spectrometer and a sample container for infrared spectrum collection according to the first aspect of the present application. The infrared spectrometer includes a sample test position for placing the sample container for infrared spectrum collection. The sample container for infrared spectrum collection is placed in the sample test position.
[0059] The infrared spectrum collection system of this embodiment has the same advantages as the infrared spectrum collection sample container of the previous embodiment. When testing a sample, the sample cup 10 can be placed on the sample test position of the infrared spectrometer so that the collection hole of the receiving cavity 12 is opposite to the sample test position of the infrared spectrometer, and then a small amount of sample is poured into the receiving cavity 12 and covered with the sample cover 20, so that the sample can be filled in the receiving cavity 12 more evenly. The infrared spectrometer can start testing the sample, and the infrared spectrometer illuminates the sample and collects spectral reflection information.
[0060] In the sample container for collecting infrared spectra in some embodiments, the sample for collecting infrared spectra is shredded tobacco.
[0061] The following combination Figures 1 to 3 The sample container for collecting infrared spectra according to the embodiment of the present application is further described.
[0062] like Figures 1 to 3 As shown, the sample container for collecting infrared spectrum is used in conjunction with an infrared spectrometer to contain samples to be tested. The sample container for collecting infrared spectrum includes a sample cup 10 and a cup cover 20.
[0063] The sample cup 10 includes a cup body 11 and a receiving cavity 12. The cup body 11 includes a first cylinder. The hollow portion of the first cylinder forms the receiving cavity 12. The receiving cavity 12 is an axial through hole of the first cylinder. The bottom opening of the axial through hole forms a collection hole of the sample cup 10. The diameter D1 of the first cylinder is Φ40 mm. The diameter D2 of the axial through hole of the first cylinder is Φ10 mm. The height H1 of the first cylinder is Φ10 mm.
[0064] The cup cover 20 includes a cover body 21 and a sample pressing structure 22. The cover body 21 is a second cylinder. The sample pressing structure 22 is a cone coaxial with the second cylinder. The diameter D1 of the first cylinder is greater than the diameter D3 of the second cylinder. The diameter D3 of the second cylinder is Φ30mm. The height H2 of the second cylinder is Φ5mm. The diameter D2 of the axial through hole of the first cylinder is greater than the diameter D4 of the interface between the cone and the second cylinder. The diameter D4 of the interface is Φ9mm. The height H1 of the first cylinder is greater than the height H3 of the rotating body. The height H3 of the cone is 5mm.
[0065] The sample cup 10 and the cup cover 20 are both made of stainless steel.
[0066] The sample container for infrared spectrum collection of this embodiment can automatically realize the sample pressing operation by simply covering the sample cup 10 with the cup cover 20 after a small amount of sample is loaded into the accommodating cavity 12 of the sample cup 10. The operation is simple and easy to use. Small amount of solid particle sample pressing and spectrum information collection can be performed quickly and continuously.
[0067] When testing a sample, first place the sample cup 10 on the sample testing position of the infrared spectrometer so that the receiving cavity 12 of the sample cup 10 overlaps with the sample testing position of the infrared spectrometer. Then pour a small amount of sample into the receiving cavity 12, cover the cup cover 20, and press the sample evenly into the receiving cavity 12, and then start spectrum collection.
[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution requested for protection in this application.
Claims
1. A sample container for collecting infrared spectra, characterized in that: include: A sample cup (10) comprises a cup body (11) and a receiving cavity (12) arranged in the cup body (11), wherein the receiving cavity (12) is configured to receive a sample; and The cup cover (20) comprises a cover body (21) and a sample pressing structure (22), wherein the cover body (21) is configured to cover the sample cup (10) to close the containing cavity (12), and the sample pressing structure (22) is configured to protrude downward relative to the cover body (21), and when the cover body (21) covers the sample cup (10) to close the containing cavity (12), the cover body (21) is located in the containing cavity (12) to press the sample in the containing cavity (12), wherein the cross-sectional area of the sample pressing structure (22) gradually decreases from the cover body (21) to a side away from the cover body (21).
2. The sample container for collecting infrared spectrum according to claim 1, characterized in that: The cup body (11) comprises a first cylinder, the hollow portion of the first cylinder forming the accommodating cavity (12).
3. The sample container for collecting infrared spectrum according to claim 2, characterized in that: The accommodating cavity (12) is an axial through hole of the first cylinder.
4. The sample container for collecting infrared spectrum according to claim 3, characterized in that: The diameter D1 of the first cylinder is Φ35-Φ44 mm; and / or The diameter D2 of the axial through hole is Φ9.5-Φ12 mm; and / or The height H1 of the first cylinder is 9-15 mm.
5. The infrared spectrum collection sample container according to any one of claims 1 to 4, characterized in that: The accommodating chamber (12) has a central axis, and when the cover body (21) is covered on the sample cup (10) to close the accommodating chamber (12), the sample pressing structure (22) is a rotating body whose axial direction is the same as the extension direction of the central axis of the accommodating chamber (12).
6. The sample container for collecting infrared spectrum according to claim 5, characterized in that: The sample pressing structure (22) is a cone, a truncated cone, a spherical crown or an ellipsoidal crown.
7. The sample container for collecting infrared spectrum according to claim 4, characterized in that: The cover body (21) is a second cylinder, and the sample pressing structure (22) is a rotating body coaxial with the second cylinder; wherein: The diameter D1 of the first cylinder is greater than the diameter D3 of the second cylinder, and the difference between the diameter D1 of the first cylinder and the diameter D3 of the second cylinder is 2 mm to 10 mm; and / or The height H2 of the second cylinder is 5 mm to 8 mm; and / or The diameter D2 of the axial through hole is larger than the diameter D4 of the interface between the rotating body and the second cylinder, and the difference between the diameter D2 and the diameter D4 of the interface is 1 mm to 3 mm; and / or The height H1 of the first cylinder is greater than the height H3 of the rotating body, and the difference between the height H1 and the height H3 of the rotating body is 4 mm to 6 mm.
8. The sample container for collecting infrared spectrum according to any one of claims 1 to 4, characterized in that: The sample cup (10) is made of a metal material; and / or The cup cover (20) is made of metal material.
9. An infrared spectrum acquisition system, characterized in that: include: An infrared spectrometer, including a sample test position for placing a sample container for collecting infrared spectra; and According to any one of claims 1 to 8, the infrared spectrum collection sample container is placed in the sample testing position.
10. The infrared spectrum acquisition system according to claim 9, characterized in that: The sample is cut tobacco.