Fundamentals of transmission fluctuation spectrometry with variable spatial averaging--颗粒学报PARTICUOLOGY

Shen, J., Riebel, U., Breitenstein, M., & Kräuter, U. (2003). Fundamentals of transmission fluctuation spectrometry with variable spatial averaging. China Particuology, 1(6), 242-246. https://doi.org/10.1016/S1672-2515(07)60002-5

Fundamentals of transmission fluctuation spectrometry with variable spatial averaging

Jianqi Shen ^{a b *}, Ulrich Riebel ^b, Marcus Breitenstein ^b, Udo Kräuter ^b

a Institute of Science, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
b Brandenburg Technical University of Cottbus, 03013 Cottbus, Germany

10.1016/S1672-2515(07)60002-5

Volume 1, Issue 6, December 2003, Pages 242-246

Received 19 August 2003, Accepted 27 October 2003, Available online 27 November 2007.

E-mail: shenjq@online.sh.cn

Highlights

Abstract

Transmission signal of radiation in suspension of particles performed with a high spatial and temporal resolution shows significant fluctuations, which are related to the physical properties of the particles and the process of spatial and temporal averaging. Exploiting this connection, it is possible to calculate the particle size distribution (PSD) and particle concentration. This paper provides an approach of transmission fluctuation spectrometry (TFS) with variable spatial averaging. The transmission fluctuations are expressed in terms of the expectancy of transmission square (ETS) and are obtained as a spectrum, which is a function of the variable beam diameter. The reversal point and the depth of the spectrum contain the information of particle size and particle concentration, respectively.

Graphical abstract

Keywords

expectancy of transmission square; particle size analysis; transmission fluctuation spectrometry

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