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HANSHAN LI1,* , HANG JING1
To improve the measurement accuracy and photoelectric detection ability in dust concentration testing system, this paper proposes using volume scattering function to represent the particle scattering field, analyzes light source and particles scattering characteristics, and the influence of relative humidity on particles scattering characteristics, establishes a new detection sensitivity model and signal to noise ratio (SNR) model of dust concentration photoelectric detection system, deduces the contribution degree of all factors on the sensitivity and SNR. Through calculation and analysis, gets the contribution degree of relative humidity, scale parameter and refractive index on dust concentration sensor detection sensitivity and detection SNR; obtains the effect of the particle volume scattering function distribution on incident light polarization direction, incident light wavelength, particle size, and particle refractive index, gives the changing conditions of the particle volume scattering function distribution on the scattering angle along with incident light polarization direction, incident light wavelength, particle size, and particle refractive index..
Photoelectric detection, Dust particle, Laser scattering, Dust concentration.
HANSHAN LI, HANG JING, Laser scattering characteristics of dust particle and photoelectric detection signal to noise ratio model in dust concentration testing system, Optoelectronics and Advanced Materials - Rapid Communications, 11, 5-6, May-June 2017, pp.317-323 (2017).
Submitted at: Oct. 31, 2016
Accepted at: June 7, 2017
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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