| 摘要 |
PURPOSE:To execute the individual measurement of a spectrum image of a spark light of continuous plural pulses by using an image sensor in which a photoelectric element is arranged in a shape of a one-dimensional array, for a detecting part. CONSTITUTION:By a spark power source 1, a high voltage pulse is applied between a spark electrode 2 and a sample S and a spark discharge is generated. Subsequently, spark light is made incident on a spectroscope 4 through an inlet slit 3 and brought to a spectrum, and photodetected and detected by an image sensor 6 in which a photoelectric element of a photodetector having a resolution in the spectral direction is arranged in a shape of a one-dimensional array. This detected output is outputted from an image sensor controller 7 in accordance with a control signal which is sent from a CPU 10 by synchronizing with a high voltage pulse generated from the power source 1, and stored in a storage device 11 at every pulse unit through an A/D converter 9, the CPU 10, etc. According to such constitution, an individual measurement of a spectrum image of a spark of continuous plural pulses can be executed.
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