Guia docente 2015_16 Facultade de Ciencias

Contents

Topic	Sub-topic
Generalities	Introduction. General characteristics of the systems of optical measurement. The laser in metrology Measurable attributes by optical means. Ranking of the optical techniques of dimensional metrology.
Interferometric field techniques	Two-beam interferometers Multiple beam interferometers Applications. Automatic analysis of interferograms. Design of algorithms of displacement of phase.
Techniques of inspection of surfaces	Surface topography. Rugosity. Macrodefects. Needle perfilometers (stylus). Optica perfilometers. . Parametric optical techniquesfot the measure of rugosity.
Optical techniques stop the industrial inspection of defects	Panorama of optical reflectometric techniques for industrial inspection. Practical case: inspection of cracks in tubes of heat interchangers by means of a reflectometric fibre sensor. Introduction to the techniques of inspection of defects by means of holographic interferometry and TV-holography. Description of TV holography: Geometry, temporary treatment, secondary fringes and evaluation of phase. Practical case: detection by means of TV-holography of ultrasonic wave propagation for the detection of cracks in metallic plates.