Additional Optical Data Processing Techniques For Surface Roughness Studies

Three methods for determining the statistics of a surface's roughness are proposed. All three use some variation of the phase contrast method, and all appear to have advantage over a recently suggested method. (Author).

Contents of this volume include: on-line glossmeter for stainless steel sheets; in process optical measurement of micro profile on cold rolled steel plates; optical profile transducer; and optical profilers for surface roughness.

The measurement and characterisation of surface topography is crucial to modern manufacturing industry. The control of areal surface structure allows a manufacturer to radically alter the functionality of a part. Examples include structuring to effect fluidics, optics, tribology, aerodynamics and biology. To control such manufacturing methods requires measurement strategies. There is now a large range of new optical techniques on the market, or being developed in academia, that can measure areal surface topography. Each method has its strong points and limitations. The book starts with introductory chapters on optical instruments, their common language, generic features and limitations, and their calibration. Each type of modern optical instrument is described (in a common format) by an expert in the field. The book is intended for both industrial and academic scientists and engineers, and will be useful for undergraduate and postgraduate studies.

As the authoritative resource on optical scattering, this book was developed from many years of teaching light-scatter measurement and analysis courses to optical engineers. Dr. Stover covers scattering beginning with its basics and covering surface roughness calculations, measurements, instrumentation, predictions, specifications, and industrial applications. Also included are appendices that review the basics of wave propagation and Kirchhoff diffraction. Whether you're an optical engineer currently investigating roughness-induced haze in the semiconductor industry, or just entering the field of scatter metrology, this text will be invaluable.