Fractional Fringe Order Method Using Fourier Analysis for Absolute Measurement of Block Gauge Thickness

Multiple-beam Fizeau fringe-pattern anal

Multiple-beam Fizeau fringe-pattern analysis using Fourier transform method for accurate measurement of fiber refractive index profile of polymer fiber

✍ M. A. El-Morsy; T. Yatagai; A. Hamza; M. A. Mabrouk; T. Z. N. Sokkar 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 650 KB

## Abstract In this article the Fourier transform method is applied to analyze multiple‐beam interference Fizeau fringes. The real part of the inverse Fourier transform is used to estimate a theoretical pattern. This pattern coincides with the experimental one. A derivative‐sign binary image of the