Control of crankshaft finish by scattering technique

Year: 2001

Authors: Fontani D., Francini F., Longobardi G., Sansoni P.

Autors Affiliation: CEO Centro di Eccellenza Optronica, Largo E. Fermi 6, 50125 Firenze, Italy
Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;

Abstract: The paper describes a new sensor dedicated to measure and check the surface quality of mechanical products. The results were obtained comparing the light scattered from two different ranges of angles by means of 16 photodiodes. The device is designed for obtaining valid data from curved surfaces as that of a crankshaft. Experimental measurements show that the ratio between scattered and reflected light intensity increases with the surface roughness. This device was developed for the off-tolerance detection of mechanical pieces in industrial production. Results of surface quality on crankshaft supplied by Renault were carried out. (C) 2001 Elsevier Science Ltd. All rights reserved.


Volume: 35 (6)      Pages from: 387  to: 396

More Information: This work was partially supported by the European Community within a European Project BRPR-CT97 0372 named “SMARTMEC”. We thank Mr. Marco Innocenti (CEO) for his contribution to the graphics.
KeyWords: Crankshafts; Light reflection; Optical variables measurement; Photodiodes; Surface roughness, Off-tolerance detection, Light scattering
DOI: 10.1016/S0143-8166(01)00021-5

Citations: 6
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