An external lifting and fixing device of a spectrometer

Abstract

The invention relates to the technical field of external fixing of a spectrometer, in particular to an external liftable fixing device of a spectrometer. Compaction operation of different sizes of samples can be achieved and detection results are ensured. The fixing device comprises a base. A vertically arranged guide rod is installed on the base. At least two annular grooves are arranged in the side part of the guide rod at a certain interval. A compression seat sleeves the guide rod. At least two transversally arranged accommodating grooves are arranged in a through hole inner wall, cooperating with the guide rod, of the compaction seat. Clamp blocks cooperating with the annular grooves are installed in the accommodating grooves through transversal compression springs. A transversal groove is installed in one side of the compaction seat. The interior of the transversal groove is connected with one end of the press rod through a rotation shaft. A press block is installed on the other end of the press rod. A vertical compression spring is installed between the press rod and the inner wall of the upper end of the transversal groove.

Description

technical field [0001] The invention relates to the technical field of spectrometer external fixation, in particular to a spectrometer external liftable fixation device. Background technique [0002] The direct-reading spectrometer is a device that measures the intensity of different wavelength positions of the spectral line with a photodetector such as a photomultiplier tube. The electromagnetic radiation of the radiation source is separated into the required wavelength or wavelength region by a dispersive element, and at the selected wavelength (or scanning A certain band) for strength measurement. Before the measurement, the sample needs to be positioned and fixed. The existing fixing device is equipped with a rotatable pressing block to compress the sample under the pressing block. When the size of the sample changes greatly , That is, when it is 2 to 3 times higher than the common one or only 1 / 3 of the common one, the existing briquetting effect is very poor, and the s...

AI Technical Summary

Problems solved by technology

[0002] The direct-reading spectrometer is a device that measures the intensity of different wavelength positions of the spectral line with a photodetector such as a photomultiplier tube. The electromagnetic radiation of the radiation source is separated into the required wavelength or wavelength region by a dispersive element, and at the selected wavelength (or scanning A certain band) for strength measurement. Before the measurement, the sample needs to be positioned and fixed. The existing fixing device is equipped with a rotatable pressing block to compress the sample under the pressing block. When the size of the sample changes greatly , that is, when it is 2 to 3 times higher than the common one or only 1 / 3 of the common one, the existing briquetting effect is very poor, and the sample is prone to shift during the detection process, etc., which will affect the detection results

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