ABSTRACT
Every day, optical technology plays a bigger and bigger role in metrology. No doubt optical metrology will soon be used to perform continuous, high-speed inspections of items of all shapes, sizes, and materials. Laser-and white light-based digitizing technologies
CONTENTS
6.1 Introduction on the Use of Optics in Metrology ........................................................... 265 6.2 History of 3D Measurement Systems (How We Evolve
from CMMs to Optical Solutions) ................................................................................... 266 6.2.1 Diversity of Optical Solutions .............................................................................. 268
6.2.1.1 Laser Trackers .......................................................................................... 268 6.2.1.2 Video CMMs ............................................................................................ 269 6.2.1.3 Optical Triangulation-Based Solutions ............................................... 269
6.2.2 Photogrammetry .................................................................................................... 270 6.2.3 Scanning Solutions ................................................................................................ 271
6.2.3.1 Structured Light Scanners ..................................................................... 271 6.2.3.2 Laser Scanners ......................................................................................... 273
6.3 Basics of Triangulation-Based Laser Scanners .............................................................. 273 6.3.1 Laser Scanners Using an External Positioning Device .................................... 274 6.3.2 Self-Positioning Laser Scanners ........................................................................... 274
6.4 Use of Self-Positioning Laser Scanners for Metrology ................................................. 275 6.4.1 Self-Positioning 3D Laser Scanners ..................................................................... 275 6.4.2 Creating 3D Measurements ..................................................................................277
