CN204008261U - The height sample stage that verts varies base - Google Patents

Abstract

The utility model discloses a sample changing base of a high-tilt sample table, which comprises a base and a sample table. One end of the base is a cavity end, and a cavity is arranged on the end plane of the cavity end, and the sample table is loaded into the cavity. , the other end of the base is the gripping end, and the outer periphery of the gripping end is provided with a protruding part. The sample changing base of the high-tilt sample stage satisfies the small-sized sample stage required by the large-angle tilting sample, and at the same time, it is well Solved the problem that the small size sample stage is not easy to operate when changing samples.

Description

High tilt sample stage change base

technical field

The utility model relates to a sample stage accessory for a transmission electron microscope, in particular to a high-tilt sample stage changing base capable of tilting samples at a large angle.

Background technique

Transmission electron microscopy uses electron beams as light sources to obtain extremely high detail resolution capabilities, making it an important tool for intuitively detecting atomic structure information of crystal materials. Through transmission electron microscopy, not only high-resolution photos with crystal structure information can be obtained, but also electron diffraction of nanoscale selected areas can be given. A transmission electron microscope is mainly composed of an electron source, an electromagnetic lens system, a sample stage, and an imaging system.

The objective lens is the closest lens to the sample among the various electromagnetic lenses of the transmission electron microscope. The basic structure of the objective lens includes two parts, the upper pole piece and the lower pole piece, which are respectively located above and below the sample. The rotation angle of the single-tilt sample stage designed in the prior art in the transmission electron microscope is limited by the size of the sample stage and the distance between the upper pole piece and the lower pole piece. Therefore, it is necessary to use a special small-sized sample stage when the sample needs to be tilted at a large angle. However, under the current technical conditions, the small-sized sample stage is not easy to operate when changing samples.

The high-tilt sample table changing base designed by the utility model can well realize the operation problem of the small-sized sample table when changing samples, and is not easy to damage the sample table and related pinching tools, making the sample changing operation convenient and easy , which improves the safety and efficiency of the sample change process.

Contents of the invention

In order to achieve the above purpose, the utility model provides a sample changing base of a high-tilt sample stage with a simple structure and convenient use.

In order to solve the above-mentioned existing problems, the technical solution adopted by the utility model is: a high-tilt sample table changing base, including a base and a sample table, one end of the base is the cavity end, and the end plane of the cavity end is provided with a cavity, the sample stage is loaded into the cavity, the other end of the base is a holding end, and a protruding part is arranged on the outer periphery of the holding end, and the protruding part is fixedly connected with the base end. After the sample stage is placed in the cavity, the operator can install the sample stage to the relevant part of the microscope by holding the grip end.

Preferably, the mold cavity includes a fixing part, and the fixing part is located inside the fixing cavity of the sample stage and fixedly connected with the base. The size of the sample stage fixing cavity is consistent with the size of the sample stage to ensure that the sample stage can be well placed in the sample stage fixing cavity, and the fixing part can further fix the sample stage.

Preferably, a groove is provided on the bottom surface of the cavity, one end of the groove extends to the outer periphery of the cavity end, and the sample stage fixing cavity is provided with rounded corners. The setting of the groove can facilitate the pinch tool to take out and place the sample stage, and the rounded corners are beneficial for the sample stage to be placed in the cavity of the base more easily.

Preferably, the fixing component is a cylindrical fixing pile. The sample stage is connected with the sample changing base of the high-tilt sample stage through fixed piles.

Preferably, the protruding part protrudes outward along the handle end, and the protruding part includes an edge. The protruding parts protruding in the circumferential direction ensure that the operator can hold the base firmly and realize the sample changing operation safely.

Preferably, the bottom surface of the sample stage is attached to the bottom surface of the cavity. Ensure that the sample stage is correctly and properly placed in the cavity base.

Compared with the prior art, the beneficial effect of the utility model is: while satisfying the small-sized sample stage required by the large-angle tilting sample, the setting of the sample stage fixing cavity can well fix the sample stage horizontally at a high tilting angle. The sample table is fixedly connected to the high-tilt sample table changing base through fixed piles, and the sample table is tightly and firmly fixed on the base to ensure that the sample table will not move or rotate when changing samples; The setting of the protruding part at the end enables the operator to firmly hold the base when changing the sample. The high-tilt sample stage change base can safely and conveniently realize sample change on the sample stage, and a series of sample change operations such as changing the sample stage to the microscope before and after sample change.

Description of drawings

Fig. 1 is the structural representation of sample stage;

Fig. 2 is a structural schematic diagram of the base of the utility model.

1. Base; 2. Sample stage fixing cavity; 3. Fixing pile; 4. Groove; 5. Fillet; 6. Protruding part; 7. Edge.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

High-tilt sample table change base (see attached drawing 1), including base 1, sample table, the end plane of the cavity end of the base is provided with a cavity, the cavity fits the sample table, and the cavity includes the sample table Fixed cavity 2, fixed pile 3, the fixed cavity 2 of the sample stage is located at the top of the cavity, the fixed pile 3 is located inside the fixed cavity 2 of the sample stage, and is fixedly connected with the base 1, and the fixed cavity 2 of the sample stage is arranged below There is a groove 4, the sample stage fixing cavity 2 is provided with rounded corners 5, the other end of the base 1 is a holding end, and the outer periphery of the holding end is provided with a boss 6, and the protruding part of the boss 6 includes an edge 7, The protruding part 6 is fixedly connected with the base 1 .

The utility model is designed for the problem that the small-sized sample table is not easy to operate when changing samples. When in use, the sample table is first placed in the sample table fixed cavity with tweezers, and the sample table is connected to the base through the fixed pile to ensure The sample stage is tightly fixed on the base; then the protruding part on the sample change base of the high-tilt sample stage can be held and moved to the place where the sample stage needs to be placed on the microscope, and the sample stage is installed on the microscope.

The above-mentioned specific embodiments are used to explain the utility model, rather than to limit the utility model. Within the spirit of the utility model and the protection scope of the claims, any modifications and changes made to the utility model all fall into the scope of the utility model. A new type of protection.

Claims (6)

1. A high-tilt sample table changing base, including a base and a sample table, is characterized in that one end of the base is a cavity end, and the end plane of the cavity end is provided with a cavity, and the sample table is loaded into the mold cavity. cavity, the other end of the base is a holding end, and the outer periphery of the holding end is provided with a protruding part, and the protruding part is fixedly connected with the base end. 2 . The sample changing base of the high-tilt sample stage according to claim 1 , wherein the cavity includes a fixing part, and the fixing part is located inside the fixed cavity of the sample stage and is fixedly connected with the base. 3 . 3. The sample changing base of the high-tilt sample table according to claim 2, wherein a groove is arranged on the bottom surface of the cavity, and one end of the groove extends to the periphery of the cavity end, and the sample The stage fixing cavity is provided with rounded corners. 4. The sample changing base of the high-tilt sample stage according to claim 2 or 3, wherein the fixing part is a cylindrical fixing pile. 5 . The sample changing base of the high-tilt sample stage according to claim 1 , 2 or 3 , wherein the protruding part protrudes outward along the grip end, and the protruding part includes edges. 6 . 6. The high-tilt sample stage changing base according to claim 1, 2 or 3, wherein the bottom surface of the sample stage is in contact with the bottom surface of the cavity.