A System of Measuring the Spatial Distribution of Spectroscopic Intensity in a Cross Section of Arc Column

Mitsuru TAKEUCHI  Takayoshi KUBONO  

IEICE TRANSACTIONS on Electronics   Vol.E77-C   No.10   pp.1634-1639
Publication Date: 1994/10/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Electromechanical Devices)
Category: Arcing Discharge and Contact Characteristics
switching arc,  spectroscopy,  spatial distribution,  CCD color linear image sensor,  

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This paper describes a simple system of measuring the spatial distributions of spectral intensities with AgI-421 nm and AgI-546 nm among many optical spectrums emitted from an arc discharge between separating Ag contacts. In order to detect the intensities of two optical spectrums, the prototype equipment has two sets assembled with a CCD color linear image sensor, a lens and optical filters, which are arranged on rectangularity. The intensities of two spectrums can be recorded with 2 ms time-resolution within a long arc duration on a digital memory. The recorded digital signals are processed by using a personal computer in order to reconstruct two spatial distributions of spectral intensities in a cross section of arc column with the Algebraic Reconstruction Technique.