Relationship between particle-size and chord-length distributions in focused beam reflectance measurement: stability of direct inversion and weighting

Edward Wynn

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

A relationship is derived between the underlying particle-size distribution (PSD) and the measured chord-length distribution (CLD) from a Lasentec Focused Beam Reflectance Measurement (FBRM) instrument. A direct method of inverting this relationship is calculated analytically. This method is shown to be stable in some cases. The principle of the method is identical to earlier "peeling" methods, which were unstable. The reason for the improvement is finer spacing of size-intervals. The CLD is shown to be weighted by particle size; this affects the way in which mean chord-lengths should be interpreted. Two moments of the CLD represent physical quantities regardless of the particles' shapes. (C) 2003 Published by Elsevier B.V.
Original languageEnglish
Pages (from-to)125-133
Number of pages9
JournalPowder Technology
Volume133
Issue number1-3
DOIs
Publication statusPublished - 30 Jul 2003

Fingerprint

Dive into the research topics of 'Relationship between particle-size and chord-length distributions in focused beam reflectance measurement: stability of direct inversion and weighting'. Together they form a unique fingerprint.

Cite this