Title :
Electromechanical properties of Rainbow devices
Author :
Furman, E. ; Li, G. ; Haertling, G.H.
Author_Institution :
Dept. of Ceramic Eng., Clemson Univ., SC, USA
Abstract :
A stress-biased, domed, electromechanical bender called a Rainbow was recently developed. Displacement characteristics for Rainbow devices based on piezoelectric PLZT compositions were studied in the frequency range far below the fundamental resonant mode frequency. Experimentally obtained field-induced displacements were compared with those predicted by a finite element model. The model underestimated the observed displacements. Low frequency relaxation of the displacements was observed experimentally
Keywords :
displacement measurement; lanthanum compounds; lead compounds; piezoceramics; piezoelectric actuators; PLZT; PbLaZrO3TiO3; Rainbow devices; displacement characteristics; field-induced displacements; finite element model; low frequency relaxation; piezoelectric compositions; stress-biased domed electromechanical bender; Capacitive sensors; Ceramics; Electrodes; Finite element methods; Furnaces; Piezoelectric devices; Predictive models; Resonance; Resonant frequency; Temperature;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522321
