Optoelectronic Analysis for Surface Testing. Automation of Surface Testing
Thomas Vetterlein, Rolf M. Annighöfer, Essingen, Michael Wagner, Heinz Rougen, Horst Hallingen, Jülich
ABSTRACT Magnetic particle testing is one of the most sensitive non-destructive methods for the detection of surface discontinuities like cracks in ferromagnetic materials. In fact, there is the critical consideration of the operator's ability to qualitatively and quantitatively evaluate the results of the inspection. Therefore evaluation procedures have been developed and integrated into NDT equipment over the past few years allowing a fully automated detection of cracks. This technology has been applied in automobile industry. It provides repeatability and high standards in quality assurance as known from eddy current or ultrasonic inspection. The realization of an automated magnetic particle NDT system requires an online monitoring of the complete inspection procedure. Such system includes hardware components that control the inspection process as well as an optical system that detects and reports surface cracks reliably.
Publication Source: Materialprüfung, ISSN: 0025-5300
Issue: 2004-6, pp -
Publisher: Carl Hanser Verlag München
© NDTnet
