Sample protection device

The negative pressure driving mechanism of the sample protection device drives the seal cover to flip, so as to achieve air isolation of the sample in the injection chamber of the X-ray photoelectron spectrometer, solve the problems of air-sensitive materials oxidation and air leakage in the injection chamber, and improve detection Accuracy of the analysis.

CN118425212BActive Publication Date: 2025-01-07UNIV OF SCI & TECH OF CHINA
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Patent Information

Application Number
CN202410604117.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2025-01-07
Estimated Expiration
2044-05-15

AI Technical Summary

Technical Problem

When X-ray photoelectron spectrometer detects air-sensitive materials, the sample is prone to oxidation, resulting in a decrease in the accuracy of detection and analysis. In the prior art, the use of transfer chamber disassembly and installation results in air leakage in the sample chamber and the vacuum degree becomes worse.

Method used

A sample protection device is designed, including a sample base, a sealing cover plate and a clamping rod. The negative pressure driving mechanism is used to drive the sealing cover plate to flip, so as to achieve air isolation of the sample during the transfer process, avoid air leakage, and ensure a vacuum environment.

Benefits of technology

Effectively prevent sample oxidation, improve the accuracy of detection and analysis, avoid air leakage in the sample chamber caused by transfer bins, and ensure the detection accuracy of the X-ray photoelectron spectrometer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a sample protection device, belonging to the technical field of X-ray photoelectron spectrum detection, comprising a sample base, a first groove is provided on the top of the sample base, the first groove is sealed when a sealing cover is buckled on the sample base, a clamping rod is arranged on the sample base, the clamping rod abuts against the upper side of the sealing cover, a negative pressure driving mechanism is arranged on the sample base to drive the clamping rod to move away from the upper side of the sealing cover, a torsion spring is connected between the hinged end of the sealing cover and the sample base, and the present invention can realize the isolation of the sample from the external air during the process of transferring to the injection chamber of the X-ray photoelectron spectrometer, so as to avoid the oxidation of the sample during the transfer process to affect the accuracy of the detection and analysis, and then the negative pressure driving mechanism is used to drive the clamping rod to move away from the sealing cover, and the torsion spring drives the sealing cover to flip open, so that the sample is exposed to the injection chamber for convenient detection and analysis, thereby ensuring the accuracy of the X-ray photoelectron spectrometer in detecting and analyzing the material.
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Citation Information

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