Flaw detection in d33-mode ceramic multilayer actuators using impedance-frequency scans

Manfred Kahn; Daniel J. Krause; Mark T. Chase

doi:10.1117/12.209346

12 May 1995 Flaw detection in d₃₃-mode ceramic multilayer actuators using impedance-frequency scans

Manfred Kahn, Daniel J. Krause, Mark T. Chase

Proceedings Volume 2447, Smart Structures and Materials 1995: Industrial and Commercial Applications of Smart Structures Technologies; (1995) https://doi.org/10.1117/12.209346
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

A method to detect linear flaws in piezoelectric actuators is demonstrated. Piezoelectrically induced vibrations are excited in the actuator at a large number of closely spaced frequencies. At frequencies of mechanical resonance there are steep impedance peaks and a peak pattern is generated that is characteristic of a particular actuator configuration. It is shown that when the amplitudes of such peaks are abnormally low, i.e. 50% or less, or when there are peaks > 2kHz removed from 'normal' peak locations, significant internal flaws are present.

Citation Download Citation

Manfred Kahn, Daniel J. Krause, and Mark T. Chase "Flaw detection in d₃₃-mode ceramic multilayer actuators using impedance-frequency scans", Proc. SPIE 2447, Smart Structures and Materials 1995: Industrial and Commercial Applications of Smart Structures Technologies, (12 May 1995); https://doi.org/10.1117/12.209346

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available