16 September 2014 Homodyne and heterodyne optical interferometry for frequency dependent piezoelectric displacement measurement
Author Affiliations +
Abstract
The electromechanical coupling in piezoelectric materials has been widely studied however a unified view of this interaction as function of frequencies using different measurement techniques has not previously been available. This study examines and compares multiple optical based homodyne and heterodyne interferometry techniques for displacement measurement over a wide range of frequencies and including a comparison made by using a commercial Laser Doppler Vibrometer. Ferroelectric lead titanate PbTiO3 with high ferroelectric strain is studied in this work. Frequency dependence of the electromechanical displacement is obtained using multiple techniques and the emphasis is given to near resonant frequency interrogations.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Keith Delahoussaye, Keith Delahoussaye, Ruyan Guo, Ruyan Guo, Amar Bhalla, Amar Bhalla, "Homodyne and heterodyne optical interferometry for frequency dependent piezoelectric displacement measurement", Proc. SPIE 9200, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VIII, 92001M (16 September 2014); doi: 10.1117/12.2066736; https://doi.org/10.1117/12.2066736
PROCEEDINGS
13 PAGES


SHARE
Back to Top