An incident slit adjustment mechanism and an atomic emission spectrometer using it

Abstract

The invention relates to the field of spectrum analysis, and in particular relates to an entrance slit adjusting mechanism and an atomic emission spectrometer using the entrance slit adjusting mechanism. The entrance slit adjusting mechanism comprises a quadrilateral support frame, two light baffles and a longitudinal expansion driving device; the end part of the horizontal swing arm in the quadrilateral support frame is connected or hinged with a longitudinal movable arm and a longitudinal fixed arm by adoption of a flexible material, so that the quadrilateral support frame can be changed into a rectangle or a parallelogram; and the longitudinal expansion driving device drives the quadrilateral support frame to deform, so that the width of the entrance slit between the two light baffles is adjusted. According to the atomic emission spectrometer and the entrance slit adjusting mechanism in the invention, automatic precision adjustment of the slit width in a small micron range can be realized; and the entrance slit adjusting mechanism is simple in structure, low in manufacturing cost, low in precision requirement on a servo motor, convenient to install and small in space occupation,and very suitable for the atomic emission spectrometer for performing oil detection by adoption of a cremation atomic emission oil measurement technology.

Description

technical field [0001] The invention relates to the field of spectroscopic analysis, in particular to an incident slit adjustment mechanism and an atomic emission spectrometer using the same. Background technique [0002] In the fields of atomic spectroscopic analysis, fresh spectroscopy, metrology and detection, etc., it is often necessary to analyze the elements and their contents of samples. Traditional spectral analysis methods include: spectral analysis methods mainly include atomic emission spectrometry, atomic absorption spectrometry, ultraviolet-visible absorption spectrometry, red well spectrometry, etc. [0003] With the continuous development of science and technology, the use of spectrometers to analyze oil is becoming more and more popular. The principle of the existing spectral glaze analysis is that the analyzed oil sample is excited in the analysis gap of the excitation chamber, and then the light emitted by the oil sample is transmitted through the optical ...

AI Technical Summary

Problems solved by technology

However, due to the complex structure of the variable slit in the prior art, a fixed-width slit is used in the traditional cremation atomic emission spectrometer, and the slit width is optimized at a fixed width, so the measurement accuracy and accuracy can only be optimized to a certain extent. Expanding the scope of application, there are still many limitations in practical applications

Images