Portal de Periódicos da CAPES

A comparative study of two automated techniques for measuring fiber length

1997; TAPPI; Volume: 80; Issue: 2 Linguagem: Inglês

0734-1415

M. G. Carvalho, Paulo J. Ferreira, Alexandre A. Martins, M.M. Figueiredo,

Leaf Properties and Growth Measurement

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 the the GS-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 classifed in a Bauer-McNett device. Application : compares the performance of two automatic fiber analyzers, the Kajaani FS-200 and the Galai CIS-100.