The Optics of the Wool Fiber Diameter Analyzer

Author:

Glass M.1,Dabbs T.P.1,Chudleigh P.W.1

Affiliation:

1. CSIRO Division of Wool Technology, Sydney Laboratory, Ryde, NSW 2112, Australia

Abstract

The optics underlying the operation of the wool fiber diameter analyzer ( FDA ) is explained in terms of the formation of a Fresnel diffraction shadow behind a strip mask. Consequently, the measurement technique is sensitive only to fiber diameter and is independent of internal properties such as color or refractive index. Using an approximate technique, the Huygens-Fresnel theory of diffraction is modified to account for a finite sized source with non-uniform illumination. This allows the FDA optics to be modeled using a new technique of modified Fresnel integrals. The method, which applies a one-dimensional approach to a two-dimensional problem, is computationally simple and gives an accurate description of optical phenomena encoun tered in the FDA. The model provides a powerful design and analysis tool for this class of instrument and has proved useful in elucidating potential sources of error.

Publisher

SAGE Publications

Subject

Polymers and Plastics,Chemical Engineering (miscellaneous)

Cited by 9 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3