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Sensors 2012, 12(4), 4399-4420;

Optical Triangulation-Based Microtopographic Inspection of Surfaces

Centro de Física, Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal
Received: 21 February 2012 / Revised: 22 March 2012 / Accepted: 28 March 2012 / Published: 29 March 2012
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Portugal)
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The non-invasive inspection of surfaces is a major issue in a wide variety of industries and research laboratories. The vast and increasing range of surface types, tolerance requirements and measurement constraints demanded during the last decades represents a major research effort in the development of new methods, systems and metrological strategies. The discreet dimensional evaluation the rugometric characterization and the profilometric inspection seem to be insufficient in many instances. The full microtopographic inspection has became a common requirement. Among the different systems developed, optical methods have the most important role and among those triangulation-based ones have gained a major status thanks to their flexibility, reliability and robustness. In this communication we will provide a brief historical review on the development of optical triangulation application to the dimensional inspection of objects and surfaces and on the work done at the Microtopography Laboratory of the Physics Department of the University of Minho, Portugal, in the development of methods and systems of optical triangulation-based microtopographic inspection of surfaces. View Full-Text
Keywords: microtopography; optical triangulation; non-invasive inspection; rugometry microtopography; optical triangulation; non-invasive inspection; rugometry

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Costa, M.F.M. Optical Triangulation-Based Microtopographic Inspection of Surfaces. Sensors 2012, 12, 4399-4420.

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