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Proceedings Paper

Nondestructive and contactless determination of layer and coating thickness
Author(s): C. Sklarczyk; U. Netzelmann; P. Kreier; W. Gebhardt
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Paper Abstract

The paper describes some new developments in the field of contactless and nondestructive determination of the layer and coating thickness on different substrates. 1) The first method is based on millimeterwaves which are emitted and re-ceived by a compact integrated radar sensor. 2) Another approach is based on thermal effects induced in the coating by flash heating or laser light heating. The temperature response of the test object is monitored by an infrared sensor. 3) With the help of an airborne ultrasonic transducer the thickness of powder coating, e.g. ceramics-coating on steel, can be determined contactlessly with an accuracy of better than 5 μm.

Paper Details

Date Published: 19 May 2005
PDF: 11 pages
Proc. SPIE 5767, Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure IV, (19 May 2005); doi: 10.1117/12.598778
Show Author Affiliations
C. Sklarczyk, Fraunhofer-Institut Zerstoerungsfreie Pruefverfahren (Germany)
U. Netzelmann, Fraunhofer-Institut Zerstoerungsfreie Pruefverfahren (Germany)
P. Kreier, Innotest AG (Switzerland)
W. Gebhardt, Fraunhofer-Institut Zerstoerungsfreie Pruefverfahren (Germany)


Published in SPIE Proceedings Vol. 5767:
Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure IV
Peter J. Shull; Andrew L. Gyekenyesi; Aftab A. Mufti, Editor(s)

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