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Titolo:
Measurement of yarn densities in fabrics using phase-shifted digital moire
Autore:
Xu, B; Lin, S; Jiang, N;
Indirizzi:
Univ Texas, Dept Human Ecol, Austin, TX 78712 USA Univ Texas Austin TX USA 78712 xas, Dept Human Ecol, Austin, TX 78712 USA
Titolo Testata:
OPTICAL ENGINEERING
fascicolo: 8, volume: 40, anno: 2001,
pagine: 1476 - 1480
SICI:
0091-3286(200108)40:8<1476:MOYDIF>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Keywords:
digital moire; demodulation; phase shifting; yarn density;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
--discip_EC--
Citazioni:
5
Recensione:
Indirizzi per estratti:
Indirizzo: Xu, B Univ Texas, Dept Human Ecol, Austin, TX 78712 USA Univ Texas AustinTX USA 78712 ept Human Ecol, Austin, TX 78712 USA
Citazione:
B. Xu et al., "Measurement of yarn densities in fabrics using phase-shifted digital moire", OPT ENG, 40(8), 2001, pp. 1476-1480

Abstract

Yarn density, or yarn count, in a woven fabric is an important parameter that influences fabric structure and properties. The measurement of yarn density often involves tedious, inaccurate procedures. This paper presents a new method developed for rapid and accurate measurement of yarn density. Themethod takes advantage of the structural features of a woven fabric, and uses a computer-generated grating (a reference pattern) to produce digital moire interference on the fabric. The moire image is then demodulated and processed with a phase-shifting technique so that moire fringes can be extracted and counted. From the relation between the pitches of the grating and the moire fringes, the yarn density can be calculated. This technique does not need complicated optical setting or an interferometer to form moire fringes with fabrics, permitting fast and accurate measurement of yarn densities. (C) 2001 Society of Photo-Optical Instrumentation Engineers.

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Documento generato il 02/06/20 alle ore 02:06:51