Full spectrum scanning type spark photoelectric direct reading spectrometer

Abstract

The present invention discloses a full spectrum scanning type spark photoelectric direct reading spectrometer which is characterized in that the full spectrum scanning type spark photoelectric direct reading spectrometer comprises an excitation light source for exciting a sample to generate light, a window mirror structure which allows a light splitting room to be in a constant temperature vacuum state and is installed at a side wall of one side of the light splitting room near the excitation light source, a light condenser which focuses the light of the excitation light source to a focal point and allows the light to pass an entrance slit, a grating which splits the light which passes the entrance slit, a signal collection system which receives a line array CCD acquisition system which receives a spectral beam and converts the spectral beam into a voltage signal and a diaphragm device, wherein the light condenser and the grating are installed in the light splitting room, the window mirror structure, the light condenser and the grating are placed in an optical path, seamless connection is adopted by the line array CCD acquisition system which is installed in a Rowland circle, characteristic light passes the diaphragm device, and the voltage collection is carried out through the CCD acquisition system. According to the full spectrum scanning type spark photoelectric direct reading spectrometer, the full spectrum reception of 100 to 600 nm can be realized by the CCD acquisition system, which is equal to the reception and collection of thousands of PMT at the same time, the process is simple, the volume of an instrument is greatly reduced, the material cost is reduced, and the dimming process is simplified.

Description

technical field [0001] The invention relates to the field of instruments, in particular to a full-spectrum scanning spark photoelectric direct reading spectrometer. Background technique [0002] At present, in the metallurgical industry, traditional spectrometers use large focal length beam splitters (750mm-1000mm focal length gratings) in order to achieve relatively good resolution, which requires a large spectroscopic chamber to achieve the purpose of the vacuum optical system. The mechanical design and material costs have been greatly increased; the detector is a PMT (photomultiplier tube), and an exit slit of 20-50um is required to accurately allow the elements to shine on the PMT. If the channel is added later, it needs to be slit and aligned according to the requirements. Then install the corresponding PMT to achieve the detection purpose; the optical system is relatively complicated and requires professional dimming personnel to do it well; therefore, the application ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve at least one of the technical problems in the prior art, especially to reduce the volume of the entire spectrometer, greatly expand the industrial application and the high level of circuit integration, and reduce various circuit problems due to complex circuits

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