3H-6 Design Considerations For A Non-Contact, Inductively Coupled Lamb Wave Transducer

Author

Greve, D.W. ; Oppenheim, I.J. ; Sohn, H.

Author_Institution

Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA

fYear

2006

fDate

2-6 Oct. 2006

Firstpage

784

Lastpage

787

Abstract

The wafer-type transducer is attractive for Lamb wave generation because it offers a degree of mode selectivity and is potentially compact and inexpensive. However, mounting and in particular the provision of electrical connections has been problematic, especially when permanent installation on exposed structures is contemplated. We have recently demonstrated inductive coupling that achieves excellent transducer performance while obviating the need for electrical connectors. In this paper, we report on detailed electrical analysis and modeling of our inductively coupled transducer. We will report detailed analysis of an inductively coupled transducer consisting of a PZT wafer, a ferrite sheet, and a two-layer printed circuit board

Keywords

piezoelectric transducers; surface acoustic wave transducers; ultrasonic transducers; Lamb wave generation; PZT wafer; electrical connectors; ferrite sheet; inductive coupling; inductively coupled Lamb wave transducer; noncontact Lamb wave transducer; two-layer printed circuit board; wafer-type transducer; Coils; Connectors; Coupling circuits; Ferrites; Magnetic materials; Packaging; Piezoelectric transducers; Probes; Ultrasonic transducers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2006. IEEE

Conference_Location

Vancouver, BC

ISSN

1051-0117

Print_ISBN

1-4244-0201-8

Electronic_ISBN

1051-0117

Type

conf

DOI

10.1109/ULTSYM.2006.202

Filename

4152058