Transmission electron microscope sample rod capable of performing 360-degree rotation on sample

Abstract

The invention relates to a transmission electron microscope sample rod capable of performing 360-degree rotation on a sample. The sample rod is connected with a sample clamp, and a sample is clamped on the sample clamp. The sample rod comprises a hollow shell and a rotating shaft installed in the shell, wherein the rotating shaft and the shell are provided with a pair of bearings therebetween, andthe rotating shaft is provided with a rotation driving mechanism used for driving the rotating shaft to perform autorotation; the rotating shaft is composed of a rigid rod and a piezoelectric ceramictube, the bearings are arranged on the rigid rod, and the piezoelectric ceramic tube stretches out and draws back along the X-axis, Y-axis and / or Z-axis and swings by taking the X-axis and / or the Y-axis as a center, and one end of the piezoelectric ceramic tube is fixed with the rigid rod; the other end of the piezoelectric ceramic tube is fixedly provided with a hard ball; and the sample clamp is suspended on the hard ball through a flexible screw claw, the flexible screw claw is arranged in a circumferential array mode along the sample clamp, one end of the flexible screw claw is fixed withthe sample clamp, and the other end forms a contraction port and is suspended on the hard ball. The transmission electron microscope sample rod has the advantage of being capable of realizing 360-degree rotation of a sample without a need of changing the structure of the existing transmission electron microscope.

Description

technical field [0001] The invention relates to a sample rod of a transmission electron microscope (TEM). Background technique [0002] Transmission electron microscopy is an important instrument that can observe the microstructure of materials at the sub-nanometer scale. In-depth observation and study of the microstructure of materials plays a vital role in the design of new high-performance materials and the construction of material structure and performance relationships. The main development direction of modern transmission microscopy technology is to develop transmission microscopy characterization technology and comprehensively analyze the morphology, structure, orientation, composition and other information of materials. In terms of material morphology characterization, in principle, if the sample can be rotated 360° when observing the sample, and the morphology of the sample at each viewing angle can be obtained, a three-dimensional model of the sample can be constru...

AI Technical Summary

Problems solved by technology

However, since it is difficult to ensure that the observation target area is on the rotation axis, it is easy to move out of the field of view or lose focus during the rotation process

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