Dust Concentration Detection Technology Based on Fusion of Light Scattering Method and Charge Induction Method

doi:10.12068/j.issn.1005-3026.2021.01.021

Abstract

Abstract: In order to reduce on-line detection error of dust concentration， the basic principles of light scattering method and charge induction method were analyzed， and the limitations of the two methods were revealed. The structure and data of the light scattering subunit and charge induction subunit were fused， and a parallel automatic switching fusion subunit was developed. A dust concentration fusion detection algorithm was proposed. The experimental results showed that the detection error of the fusion subunit was ≤11.3%， 3.6% smaller than that of the light scattering subunit， and 3.5% smaller than that of the charge induction subunit. The average calibration resolution of the fusion subunit was 112.8， 1.27 times that of the light scattering subunit and 4.68 times that of the charge induction subunit. The calibration linearity of fusion subunit was the best. It was proved that the fusion technique overcame the limitation of light scattering method and charge induction method， further reduced the detection error and improved the calibration resolution and linearity.

Key words: dust concentration; light scattering method; charge induction method; limitation; fusion

CLC Number:

TD714

ZHAO Zheng， LI De-wen， WU Fu-xiang， LIU Guo-qing. Dust Concentration Detection Technology Based on Fusion of Light Scattering Method and Charge Induction Method[J]. Journal of Northeastern University(Natural Science), 2021, 42(1): 139-147.

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