A novel calibration procedure for a fiber optic solids concentration probe

被引：166

作者：

Zhang, H ^{[1
]}

Johnston, PM ^{[1
]}

Zhu, JX ^{[1
]}

de Lasa, HI ^{[1
]}

Bergougnou, MA ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada

来源：

POWDER TECHNOLOGY | 1998年 / 100卷 / 2-3期

关键词：

calibration procedure; fiber optic; concentration probe;

D O I：

10.1016/S0032-5910(98)00147-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Optical fiber probes for the measurement of local solids concentration must be accurately calibrated with defined limits and, in such a way, optimized for the flow densities to be measured. In this study, a multi-fiber optical reflection probe was uniquely calibrated in a downer to obtain quantitatively precise solids holdup. An iteration procedure was utilized to modify the initial calibration curves, which was verified both theoretically and practically. Calibrations using two different batches of FCC particles, with different carbon contents, indicate that these probes are sensitive to minor variations of particle colour and reflective properties; however, the characteristic shape of the calibration curves remains unchanged and a simple linear relationship exists between the curves from different batches of FCC particles. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：260 / 272

页数：13

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