Publicação

Yarn hairness and diameter characterization using a CMOS line array

Detalhes bibliográficos
Resumo:	This paper presents a new system for determining yarn hairiness and diameter using a CMOS linear array together with a data acquisition board and custom developed software. The final image is generated using coherent optical signal processing with a Fourier high-pass spatial filter. The system was previously tested and validated in simulation using an image analysis line profile tool. Several analyses were performed in a laboratorial environment testing different yarns. Finally, the results obtained with this new system are compared to those obtained previously using a simple photodiode in place of the linear photodiode array. The new system is more precise although the data processing requires significant computational effort.
Autores principais:	Carvalho, Vítor
Outros Autores:	Belsley, M.; Vasconcelos, Rosa; Soares, Filomena
Assunto:	Yarn hairness and diameter Line array CMOS optical sensors Signal processing Electronic instrumentation
Ano:	2008
País:	Portugal
Tipo de documento:	artigo
Tipo de acesso:	acesso aberto
Instituição associada:	Universidade do Minho
Idioma:	inglês
Origem:	RepositóriUM - Universidade do Minho

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