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Open AccessArticle

Industrial Calibration Procedure for Confocal Microscopes

Laboratory of Metrology and Metrotechnics (LMM), School of Industrial Engineering, Technical University of Madrid; c./José Gutiérrez Abascal, 2, 28006 Madrid, Spain
Laser Center, Technical University of Madrid, Campus Sur, Edificio “La Arboleda”; c./Alan Turing, 1, 28031 Madrid, Spain
Authors to whom correspondence should be addressed.
Materials 2019, 12(24), 4137;
Received: 10 November 2019 / Revised: 5 December 2019 / Accepted: 9 December 2019 / Published: 10 December 2019
Coordinate metrology techniques are widely used in industry to carry out dimensional measurements. For applications involving measurements in the submillimeter range, the use of optical, non-contact instruments with suitable traceability is usually advisable. One of the most used instruments to perform measurements of this type is the confocal microscope. In this paper, the authors present a complete calibration procedure for confocal microscopes designed to be implemented preferably in workshops or industrial environments rather than in research and development departments. Therefore, it has been designed to be as simple as possible. The procedure was designed without forgetting any of the key aspects that need to be taken into account and is based on classical reference material standards. These standards can be easily found in industrial dimensional laboratories and easily calibrated in accredited calibration laboratories. The procedure described in this paper can be easily adapted to calibrate other optical instruments (e.g., focus variation microscopes) that perform 3D dimensional measurements in the submillimeter range. View Full-Text
Keywords: coordinate metrology; confocal microscopy; measurement; calibration; traceability; uncertainty; quality assessment coordinate metrology; confocal microscopy; measurement; calibration; traceability; uncertainty; quality assessment
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Mínguez Martínez, A.; de Vicente y Oliva, J. Industrial Calibration Procedure for Confocal Microscopes. Materials 2019, 12, 4137.

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