Jet electrode structure

Abstract

The invention relates to the technical field of instruments for spectrometers, specially to a jet electrode structure, which has characteristics of simple structure and excitation precision ensuring, and comprises an L-shaped gas flow channel, a jet electrode and an argon spraying nozzle, wherein the L-shaped gas flow channel has a round cross section and comprises a vertical part and a horizontal part, the top portion of the vertical part is opening, the side portion of the horizontal part is sealed, the jet electrode penetrates through the bottom portion of the L-shaped gas flow channel and extends into the vertical part, a gas flow gap is arranged between the jet electrode and the inner wall of the L-shaped gas flow channel, the argon spraying nozzle penetrates through the side portion of the horizontal part and extends into the horizontal part, and an annular sleeve having a chamfer is arranged around the opening on the top portion of the L-shaped gas flow channel.

Description

technical field [0001] The invention relates to the technical field of spectrometer instruments, in particular to a spray electrode structure. 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 intensity measurement. During the measurement, the sample is fixed on the excitation platform, and the excitation is realized through the injection electrode in the excitation platform. The existing injection electrode structure is easy to mix air during the excitation process, which affects the excitation accuracy. Contents of the invention [0003] In order to solve the above problems, the present invention provides a spra...

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 intensity measurement. During the measurement, the sample is fixed on the excitation platform, and the excitation is realized through the injection electrode in the excitation platform. The existing injection electrode structure is easy to mix with air during the excitation process, which affects the excitation accuracy.

Images