Title :
Phase matched air ultrasonic transducers using corrugated PVDF film with half wavelength depth
Author_Institution :
Meas. Specialty Inc., Norristown, PA, USA
Abstract :
A large area PVDF corrugation film air transducer is proposed. The transducer features large area and a high power output and a sharp beam angle. The vibration phase of convex section is shifted 180 degrees off from the concave section. These waves add constructively to form a strong acoustic beam when corrugation height is approximately half of the wavelength
Keywords :
frequency response; polymer films; ultrasonic transducers; acoustic beam; beam angle; convex section; corrugated PVDF film; corrugation height; half wavelength depth; phase matched air ultrasonic transducers; power output; vibration phase; Acoustic transducers; Boundary conditions; Clamps; Differential equations; Electrodes; Frequency conversion; Resonance; Silver; Ultrasonic transducers; Voltage;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991905
