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Direct Measurement of Piezoelectric Strain Using a Diffraction Grating
Author(s) -
YAMAMOTO TAKASHI,
KAWASE MASATOSHI,
SATO HEIHACHI
Publication year - 1987
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.1151-2916.1987.tb05705.x
Subject(s) - piezoelectricity , grating , materials science , diffraction , electric field , lead zirconate titanate , optics , ultrasonic grating , piezoelectric coefficient , ceramic , holographic grating , diffraction grating , optoelectronics , composite material , ferroelectricity , physics , dielectric , quantum mechanics
Piezoelectric strain under a large de electric field, D 33 is directly measured by using an electrically controllable diffraction (ECD) grating. The ECD grating consists of a lead lanthanum zirconate titanate piezoelectric ceramic with 65 pairs of grooves having 40‐μm width and 80‐μm period on its surface. The operational principle for the diffraction grating and the procedure for obtaining D 33 are described. D 33 is measured experimentally with a He‐Ne 3.39‐μm laser, yielding a value of 5.9 × 10 −9 m/V under a dc electric field of 1 kV/mm. This value is discussed along with the piezoelectric constant d 33 calculated from a conventional electrical resonant method.