Language selection

Government of Canada / Gouvernement du Canada

Search

Optical inspection of industrial materials by unidimensional Fourier transform

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1364/AO.27.004645
AuthorSearch for: 1; Search for: 1
Affiliation
  1. National Research Council Canada
FormatText, Article
Subjectfar field diffraction; Fresnel diffraction; image processing; optical design; ptychography; stray light
Abstract
Optical techniques are appropriate to industrial inspection tasks because of their noncontact nature, high response speed, and increasing ruggedness and affordability. This paper relates to the development of two electrooptical systems for the inspection of woven webs and of extruded wires. In both cases, parameters of industrial interest are inferred from the light beam distribution after interaction with the material under analysis. Suitable optical configurations provide a laminar light beam which is line array scanned and Fourier transform processed. The emphasis is on the maximization of the measurement reliability, depth of field, and processing speed according to on-line application requirements.
Publication date
PublisherOSA
In
  • Applied Optics 27, no. 22: 4645–4652.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 28672
NRC-IGM88AP-404-693-G
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifier7aba664c-ce02-4dd0-a040-959ef317489b
Record created2020-05-02
Record modified2020-05-08
Date modified: