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Title: A comparative study of two automated techniques for measuring fiber length
Authors: Carvalho, M. Graça 
Ferreira, Paulo J. 
Martins, Alexandre A. 
Figueiredo, M. Margarida 
Keywords: Eucalyptus globulus; Fiber classification; Fiber diameter; Fiber dimensions; Fiber length; Fineness; Image analysis; Kraft pulps; Measuring instruments; Optical measurement
Issue Date: Feb-1997
Publisher: Tappi Press
Citation: Tappi Journal. 80:2 (1997) 137-142
Serial title, monograph or event: Tappi Journal
Issue: 2
Abstract: Measurements from two automated fiber analyzers—Kajaani FS-200 and Galai CIS-100—are compared.The FS-200 measures fiber length and coarseness via an indirect optical method.The CIS-100 measures fiber length and width by analyzing video images of fibers. Length-weighted average fiber lengths for the FS-200 were 10–20% lower than those for the CIS-100. Reference measurements from microscopic image analysis suggest that while the CIS-100 measures length more accurately than the FS-200, it is not accurate enough to measure the width of the thin eucalypt fibers used in this study. Both instruments showed good agreement between weight-weighted fiber length for the whole pulp and weight-weighted length calculated from fiber fractions classified in a Bauer–McNett device. Application: Compares the performance of two automatic fiber analyzers, the Kajaani FS-200 and the Galai CIS-100.
ISSN: 0734-1415
Rights: openAccess
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais

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