Raman test sample table

Abstract

The utility model discloses a Raman test sample table which comprises an expansion table, the expansion table is detachably connected with a fixing clamp, the expansion table is fixed above the sample table through the fixing clamp, and a screwing handle is arranged at the bottom of the fixing clamp. According to the utility model, the expansion table can accommodate samples with different thicknesses and different sizes, and is suitable for Raman spectrum tests which are large in size and cannot damage the samples. The height of the expansion table can be finely adjusted by screwing the nut, the optical focus is accurately matched, and the test deviation caused by the limited focal length adjustment range of the objective lens is effectively reduced; the device can be directly clamped on an existing Raman sample table, displacement caused by vibration or operation in the experiment process is avoided while original equipment does not need to be additionally modified, and the adaptability and universality of laboratory equipment are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of Raman spectroscopy testing technology, specifically to a Raman testing sample stage. Background Technology

[0002] Raman spectroscopy is a spectroscopic analysis technique based on the Raman scattering effect. During Raman scattering, photons interact with molecules, causing changes in the photons' energy. These energy changes correspond to energy level transitions such as vibrational and rotational transitions in molecules. By detecting the frequency, intensity, and polarization of the Raman scattered light, characteristic information about the sample molecules, such as their structure, chemical bonds, and functional groups, can be obtained. Raman spectroscopy offers advantages such as being non-contact, non-destructive, rapid, and simple to prepare samples, and is widely used in various fields including chemistry, materials science, biomedicine, and geology.

[0003] Existing Raman spectroscopy testing has a small sample stage. For large samples, it is impossible to place them completely in the groove of the sample stage, requiring the sample to be cut or processed. Furthermore, the adjustment range of the objective lens focal length is limited during testing, resulting in the sample not being able to be accurately focused during testing. Utility Model Content

[0004] The purpose of this invention is to provide a Raman testing sample stage in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] An extension stage is detachably connected to a fixing clamp. The extension stage is fixed above the sample stage by the fixing clamp, and a tightening handle is provided at the bottom of the fixing clamp.

[0007] As a further description of the above technical solution, the expansion stage includes a lofting section, which is a circular or square platform.

[0008] As a further description of the above technical solution, a fixing part is provided below the layout part, and the fixing part is detachably connected to the fixing clamp.

[0009] As a further description of the above technical solution, the fixing fixture includes a support portion that fits against one end face of the sample stage.

[0010] As a further description of the above technical solution, a first clamping part is provided on the top of the support part, and the first clamping part is parallel to the top end face of the sample stage.

[0011] As a further description of the above technical solution, a tightening nut is provided at the connection between the first clamping part and the fixing part, and the tightening nut is used to fix or adjust the height of the extension table.

[0012] As a further description of the above technical solution, the support portion is provided with a fitting portion in the middle, and the fitting portion is fitted to the top end face of the sample stage.

[0013] As a further description of the above technical solution, a second clamping part is provided at the bottom of the support part, and the second clamping part is detachably connected to the screw handle at the bottom of the sample stage.

[0014] As a further description of the above technical solution, the top end face of the sample stage is provided with a lofting groove, and the extension stage is vertically installed above the lofting groove.

[0015] As a further description of the above technical solution, the expansion stage and the lofting groove share the same axis.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model has an expansion stage that can accommodate samples of different thicknesses and sizes, and is suitable for Raman spectroscopy testing of large-sized, non-destructive samples.

[0018] 2. This utility model allows for fine adjustment of the height of the extension stage by tightening the nut, precisely matching the optical focus and effectively reducing test deviations caused by the limited adjustment range of the objective lens focal length;

[0019] 3. This utility model can be directly clamped onto the existing Raman sample stage without requiring additional modifications to the original equipment, while avoiding displacement caused by vibration or operation during the experiment, effectively improving the adaptability and versatility of laboratory equipment.

[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a front view of the Raman testing sample stage of this utility model;

[0022] Figure 2 This is a top view of the Raman test sample stage of this utility model.

[0023] Figure label:

[0024] 1. Extension stage; 11. Lofting section; 12. Fixing section; 2. Fixing clamp; 21. Support section; 22. First clamping section; 23. Fitting section; 24. Second clamping section; 3. Sample stage; 31. Lofting groove; 4. Tightening nut; 5. Tightening handle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figures 1-2 As shown, in one embodiment, a Raman test sample stage includes: an extension stage 1 for placing a sample to be tested, and the bottom of the extension stage 1 is detachably connected to a fixing clamp 2, so that the extension stage 1 can be fixed directly above the sample stage 3 by the fixing clamp 2, and the bottom of the fixing clamp 2 is provided with a tightening handle 5 so that the extension stage 1 can be fitted and fixed on the original sample stage 3. After the sample is placed on the extension stage 1, the height of the extension stage 1 can be adjusted by tightening the nut 4.

[0027] Specifically, a sample stage 3 has a sample placement groove 31 on its top end face, and an extension stage 1 is vertically installed above the sample placement groove 31.

[0028] Understandably, the expansion stage 1 can hold samples of different thicknesses and sizes. Whether it is a thin sheet sample, a thick block sample, or a large special sample, it can be placed directly on the expansion stage 1 for testing without cutting or processing. It is suitable for Raman spectroscopy testing of large-sized, non-destructive samples, thus greatly expanding the testing range of Raman spectroscopy and facilitating the analysis of various special samples.

[0029] Specifically, to ensure the accuracy of the test, the extension stage 1 and the lofting groove 31 are strictly designed to share the same axis. This precise axis alignment design can effectively ensure the stability and consistency of the sample during the test process, avoid test errors caused by sample position deviation, and thus improve the accuracy and reliability of the test results.

[0030] Furthermore, the expansion stage 1 includes a lofting section 11, which can be designed as a circular or square platform according to actual needs, so as to distribute the force on the sample more evenly and ensure the stability of the sample.

[0031] Specifically, a fixing part 12 is provided below the layout part 11, and the fixing part 12 is detachably connected to the fixing clamp 2; this ensures a stable connection between the expansion stage 1 and the fixing clamp 2, and facilitates the disassembly and replacement of the expansion stage 1, bringing great flexibility to the experimental operation.

[0032] Correspondingly, the fixing fixture 2 includes a support part 21, which can fit tightly against the surface of the sample stage 3 to provide a stable support base for the expansion stage 1; the first clamping part 22 provided at the top of the support part 21 is parallel to the top end face of the sample stage 3, which can ensure that the expansion stage 1 remains horizontal after installation, thereby ensuring that the sample is in a horizontal testing position.

[0033] In addition, a tightening nut 4 is provided at the connection between the first clamping part 22 and the fixing part 12. The experimenter can fix or adjust the height of the expansion stage 1 by rotating the tightening nut 4. The tightening nut 4 has micron-level adjustment precision, and the experimenter can fine-tune the height of the expansion stage 1 within the micron-level range, thereby accurately matching the optimal optical focus of the Raman spectroscopy system. This can effectively reduce the test deviation caused by the limited adjustment range of the objective lens focal length and improve the accuracy and reliability of the test results.

[0034] Furthermore, the support part 21 is provided with a fitting part 23 in the middle, which fits against the top end face of the sample stage 3; the support part 21 is provided with a second clamping part 24 at the bottom, which is detachably connected to the bottom screw handle 5 of the sample stage 3.

[0035] Understandably, this device can be directly clamped onto the existing Raman sample stage 3 without requiring additional modifications to the original equipment. During experiments, it effectively avoids displacement caused by vibration or operation, ensuring the stability and safety of the testing process. At the same time, this design greatly enhances the adaptability and versatility of laboratory equipment, enabling various models and specifications of Raman spectroscopy testing equipment to conveniently use this extension stage 1.

[0036] Working principle: When it is necessary to install the extension stage 1 onto the sample stage 3, the experimenter only needs to adapt the fixing clamp 2 to the sample stage 3, and then tighten the handle 5 at the bottom of the fixing clamp 2 to achieve a tight fit and fixation between the extension stage 1 and the original sample stage 3; after placing the sample onto the extension stage 1, the experimenter can precisely adjust the height of the extension stage 1 by tightening the nut 4 to ensure that the sample is in the optimal focusing position for Raman spectroscopy testing.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A Raman testing sample stage, characterized in that, include: An extension stage (1) is detachably connected to a fixing clamp (2). The extension stage (1) is fixed above the sample stage (3) by the fixing clamp (2). A tightening handle (5) is provided at the bottom of the fixing clamp (2).

2. The Raman testing sample stage of claim 1, wherein, The extension platform (1) includes a lofting section (11), which is a circular or square platform.

3. The Raman testing sample stage of claim 2, wherein, A fixing part (12) is provided below the layout part (11), and the fixing part (12) is detachably connected to the fixing clamp (2).

4. The Raman testing sample stage of claim 1, wherein, The fixing fixture (2) includes a support (21) which fits against one end face of the sample stage (3).

5. The Raman testing sample stage of claim 4, wherein, The support part (21) is provided with a first clamping part (22) at the top, and the first clamping part (22) is parallel to the top end face of the sample stage (3).

6. The Raman testing sample stage of claim 5, wherein, A tightening nut (4) is provided at the connection between the first clamping part (22) and the fixing part (12), and the tightening nut (4) is used to fix or adjust the height of the extension platform (1).

7. The Raman testing sample stage according to claim 4, characterized in that, The support part (21) is provided with a fitting part (23) in the middle, and the fitting part (23) is fitted to the top end face of the sample stage (3).

8. The Raman testing sample stage of claim 4, wherein, The support part (21) is provided with a second clamping part (24) at the bottom, and the second clamping part (24) is detachably connected to the bottom screw handle (5) of the sample stage (3).

9. The Raman testing sample stage of claim 1, wherein, The sample stage (3) has a sample placement groove (31) on its top end face, and the extension stage (1) is vertically installed above the sample placement groove (31).

10. The Raman testing sample stage of claim 9, wherein, The extension platform (1) and the lofting groove (31) share the same axis.

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