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Proceedings Paper

Design and fabrication of a 5 MHz ultrasonic phased array probe with curved transducer
Author(s): Julia Fischer; Thomas Herzog; Susan Walter; Henning Heuer
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Paper Abstract

A 5 MHz, 16-element phased array concave ultrasonic probe for non-destructive testing has been designed, fabricated and tested. To improve the probes performance its curvature, as opposed to present solutions, was not obtained by adding a corresponding delay wedge, but rather by manufacturing the functional elements (i.e. active material, matching layer) with a curvature. The piezoelectric material used here was a 1-3 composite material made of PZT. The finished probe was tested on a steel half circle with the corresponding radius (100 mm) and on the Olympus PAUT test piece. Good results could be obtained. Three transverse holes with a diameter of 1 mm and a distance of 5 mm to one another could be detected and resolved.

Paper Details

Date Published: 17 May 2013
PDF: 6 pages
Proc. SPIE 8763, Smart Sensors, Actuators, and MEMS VI, 87632M (17 May 2013); doi: 10.1117/12.2017004
Show Author Affiliations
Julia Fischer, Fraunhofer IZFP Dresden (Germany)
Thomas Herzog, Fraunhofer IZFP Dresden (Germany)
Susan Walter, Fraunhofer IZFP Dresden (Germany)
Henning Heuer, Fraunhofer IZFP Dresden (Germany)


Published in SPIE Proceedings Vol. 8763:
Smart Sensors, Actuators, and MEMS VI
Ulrich Schmid; José Luis Sánchez de Rojas Aldavero; Monika Leester-Schaedel, Editor(s)

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