This book presents a contactless system for the measurement and evaluation of selected
characteristics of machined surfaces. It describes the design and construction of new equipment
designed for contactless characterization of surface geometry working based on laser
profilometry by triangulation principle. The book focuses on the quality assessment of surfaces
produced by the technology of abrasive waterjet cutting (AWJ) and by laser. The author analyses
the performed experiment of measurement of machined surfaces of samples of aluminum stainless
steel and constructional steel using the contactless method with the LPM system and contact
method using Mitutoyo SJ 400 surface roughness tester.