Title :
Convolution by membrane waves
Author :
Meril¿¿inen, Pekka ; Luukkala, Mauri
Author_Institution :
University of Helsinki, Department of Physics, Helsinki, Finland
Abstract :
Convolution in the frequency range of hundreds of kilohertz has been produced by using the nonlinear relationship between longitudinal strain and transversal displacement associated with the membrane wave. The transversal piezoelectric effect of PVF2 film has been used to detect convolution.
Keywords :
piezoelectric devices; signal processing; ultrasonic delay lines; PVE2 film; convolution; delay lines; longitudinal strain; membrane waves; transversal displacement; transversal piezoelectric effect;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780504
