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Zhurnal Tekhnicheskoi Fiziki, 2023 Volume 93, Issue 2, Pages 207–213 (Mi jtf6934)

Gases and Fluids

The high-speed two-channel analyzer of optically dense aerosol emissions based on diode optocouplers with a wavelength of 0.65 and 3.4 microns

A. V. Zagnit'ko, V. V. Pimenov, S. E. Sal'nikov, D. Yu. Fedin, V. I. Alekseev, I. D. Matsukov, S. M. Velmakin, N. P. Zaretskiĭ, E. V. Chernenko

National Research Centre "Kurchatov Institute", 123182 Moscow, Russia

Abstract: A two-channel analyzer of optically dense flammable aerosol fluxes based on two parallel diode optocouplers with a wavelength of electromagnetic radiation $\lambda$ = 0.65 and 3.4 $\mu$m, a speed of $\tau\le$ 0.05 s and the transmission of digitized data to a server up to 1200 m away via the RS-485 interface has been developed. Its design and characteristics in the process of detecting particle streams with a diameter of 0.2 to 5000 $\mu$m with an optical density of $D\le$ 3.5 are described. It is shown that the values of the ratio of wave attenuation coefficients with $\lambda$ = 0.65 and 3.4 $\mu$m to the droplet size calculated on the basis of the theory of radiation scattering Mi are consistent with the experimental ones. The created aerosol analyzer can be used in the express analysis of technogenic airborne emissions of fuel liquids and for the development of large-scale generators of explosive type when creating pulse barriers from clouds of finely dispersed aerosol in the atmosphere.

Keywords: aerosol analyzer, speed, diode optocouplers, infrared and visible radiation, attenuation factor, optically dense emissions, Mi scattering theory, fuel liquids.

Received: 21.10.2022
Revised: 22.12.2022
Accepted: 22.12.2022

DOI: 10.21883/JTF.2023.02.54494.236-22



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