Spectrophotometer with wavelength two-stage adjustment and fixing assembly

Abstract

The invention relates to the field of spectrophotometers, and particularly relates to a spectrophotometer with a wavelength two-stage adjustment and fixing assembly, which comprises a fine adjustmentknob, a large-amplitude adjustment knob, a clamping knob and a bottom plate, and is characterized in that a connecting shaft I is arranged below the fine adjustment knob, a transmission gear is arranged on the connecting shaft I, a rotating gear is arranged on the outer side of the transmission gear, a connecting shaft II is installed below the rotating gear, the large-amplitude adjustment knob isarranged on the outer side of the fine adjustment knob, a rotating groove I is formed in the inner side of the upper end face of the large-amplitude adjustment knob, a meshing groove is formed in theinner side of the large-amplitude adjustment knob, the bottom plate is arranged in the middle of the large-amplitude adjustment knob, and a rotating groove II is formed in the bottom plate. The beneficial effects are that the spectrophotometer with the wavelength two-stage adjustment and fixing assembly provided by the invention carries out structural optimization on the traditional spectrophotometer, and the spectrophotometer is enabled to have a better adjusting function.

Description

technical field [0001] The invention relates to the field of spectrophotometers, in particular to a spectrophotometer with secondary wavelength adjustment and fixed components. Background technique [0002] A spectrophotometer, also known as a spectrometer, is a scientific instrument that decomposes complex light into spectral lines. The measurement range generally includes the visible light region with a wavelength range of 380-780nm and the ultraviolet region with a wavelength range of 200-380nm. , different light sources have their own unique emission spectrum, so different illuminants can be used as the light source of the instrument. The emission spectrum of the tungsten lamp: the spectral light with a wavelength of 380-780nm emitted by the tungsten light source is refracted by a prism, and can be obtained A continuous chromatogram composed of red, orange, yellow, green, blue, indigo, and violet; this chromatogram can be used as a light source for a visible light spectr...

AI Technical Summary

Problems solved by technology

[0002] A spectrophotometer, also known as a spectrometer, is a scientific instrument that decomposes complex light into spectral lines. The measurement range generally includes the visible light region with a wavelength range of 380-780nm and the ultraviolet region with a wavelength range of 200-380nm. , different light sources have their own unique emission spectrum, so different illuminants can be used as the light source of the instrument. The emission spectrum of the tungsten lamp: the spectral light with a wavelength of 380-780nm emitted by the tungsten light source is refracted by a prism, and can be obtained A continuous chromatogram composed of red, orange, yellow, green, blue, indigo, and violet; this chromatogram can be used as a light source for a visible light spectrophotometer. In the prior art, the spectrophotometer is single-stage adjustment, which has the problem of low adjustment accuracy In this way, there will be errors in the experiment, which will lead to problems in the experimental results. At the same time, the degree of tightness of the adjustment knob is single, and it will be difficult to adjust when different people perform high-precision adjustments; Spectrophotometer with secondary wavelength adjustment and fixed components to solve the above problems

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