Развитие высокотемпературных технологий (лазерных, плазменных, радиационных), где температура-критический параметр большей части процессов, требует использования новых методов термометрии, способных преодолеть ограниченные возможности традиционных методов, как контактных, так и бесконтактных. Один из них-спектральная пирометрия.
Исследование современных плазменных технологий требует разработки новых измерительных процессов. Предлагаемый многоканальный измерительный комплекс на базе малогабаритных спектрометров позволяет проводить спектральные исследования как стационарных, так и быстропротекающих процессов с нестационарной температурой.
The spatial characteristics of the erosion laser plasma are investigated. The application of small-sized spectrometers of the visible and ultraviolet ranges for recording the spectrum of plasma radiation is considered. Erosive laser plasma is formed on the surface of a silicon target under the action of pulsed laser radiation with a wavelength of 1064 nm under normal atmospheric conditions. The laser plasma torch was scanned using a movable slit diaphragm oriented parallel to the target surface. The emission of erosion laser plasma was recorded using small-size spectrometers. Based on the obtained plasma emission spectra, the dependences of the intensity of the spectral lines of silicon on the geometric position of the slit diaphragm are revealed. A comparison is made of the intensities of the spectral lines of silicon on the polished and grinded sides of the target.
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