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https://hdl.handle.net/10316/13396
Título: | A comparative study of two automated techniques for measuring fiber length | Autor: | Carvalho, M. Graça Ferreira, Paulo J. Martins, Alexandre A. Figueiredo, M. Margarida |
Palavras-chave: | Eucalyptus globulus; Fiber classification; Fiber diameter; Fiber dimensions; Fiber length; Fineness; Image analysis; Kraft pulps; Measuring instruments; Optical measurement | Data: | Fev-1997 | Editora: | Tappi Press | Citação: | Tappi Journal. 80:2 (1997) 137-142 | Título da revista, periódico, livro ou evento: | Tappi Journal | Número: | 2 | Resumo: | 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. | URI: | https://hdl.handle.net/10316/13396 | ISSN: | 0734-1415 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Eng.Química - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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A comparative study of two automate techniques.pdf | 223.39 kB | Adobe PDF | Ver/Abrir |
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