Transmission fluctuation method for particle analysis in multiphase flow

Shen, Jianqi; Xu, Yunlan; Yu, Bin; Wang, Huarui

doi:10.1016/j.ijmultiphaseflow.2008.03.007

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…As the particle concentration increases gradually, the spectrum first increases, reaches the maximum and then decreases. The spectrum reaches its maximum when the extinction is in the range of 0.5 and ln2 depending on the value of the beam-to-particle diameter ratio [4]. Meanwhile, the spectrum undergoes a gradual change in the profile.…”

Section: Inversion Algorithm Including High Concentration Correctionmentioning

confidence: 99%

Particle Size Measurements Using a New Signal Processing Method

2012

AMM

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Transmission fluctuation spectrometry (TFS) is a new method for particle analysis based on the statistical fluctuations of a transmission signal. With simple optical arrangement and easy operation, the method can be applied to real-time, online measurements. The transmission signal with fluctuations are analyzed by using 1st order band-pass filters, and the experimental data in the frequency domain are obtained. The particle size distribution (PSD) and particle concentration are extracted from the experimental data with the modifed Chahine interations. It is found that the measurements using band-pass filters are of better resolution in the PSD than those with low-pass filters.

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Section: Inversion Algorithm Including High Concentration Correctionmentioning

confidence: 99%

Particle Size Measurements Using a New Signal Processing Method

2012

AMM

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“…As the particle concentration increases gradually, the spectrum first increases, reaches a maximum and then decreases. The spectrum reaches its maximum when the extinction is in the range of 0.5 and ln 2 depending on the value of the beam-toparticle diameter ratio [6].…”

Section: For High Particle Concentrationsmentioning

confidence: 99%

Particle analysis on concentrated particle suspensions by transmission fluctuation spectrometry with band-pass filters: part 2. Experimental results

Shen

Riebel

et al. 2010

Meas. Sci. Technol.

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Transmission fluctuation spectrometry (TFS), as a new method of online and real-time particle analysis developed in recent years, can measure the particle size distribution and particle concentration simultaneously. In the preceding paper, high concentration effects on the TFS using band-pass filters were investigated by numerical simulation, and empirical expressions to correct the effects were obtained. This paper presents a study on the TFS measurements in which the particle concentration varies in a very wide dynamic range. Finally, reasonable results on both the particle size distribution and particle concentration are obtained by introducing empirical corrections into the inversion algorithm.

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