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Use of Autocorrelation Analysis in the Evaluation of Piezoelectric Coupling of Modified PLZT Ceramics Subjected to High Electric Fields
Author(s) -
Jemna Irina,
Luca E.,
Nicolau P.,
Tǎnǎsoiu C.,
Ioan C.
Publication year - 1983
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1983.tb10629.x
Subject(s) - piezoelectricity , electric field , materials science , autocorrelation , ceramic , coupling (piping) , field (mathematics) , acoustics , composite material , mathematics , physics , statistics , quantum mechanics , pure mathematics
Two piezoelectric materials were investigated in electric fields, up to 3 kV/cm to determine whether single‐sample testing can be used to evaluate piezoelectric coupling. Autocorrelation analysis of the data showed that the minimal increment of electric field necessary for successive independent measurements on single specimens is 1.3 kV /cm. This value coincides with the breakage field of the sample at resonance. Electrumechanical performance can still be evaluated with a sampling interval slightly lower than 1.3 kV/cm .