New geometry spreads out resonance region of piezoelectric crystal. In new transducer, crystal surfaces made nonparallel. One surface planar; other, concave. Geometry designed to produce nearly uniform response over a predetermined band of frequencies and to attenuate strongly frequencies outside band. Greater bandwidth improves accuracy of sonar and ultrasonic imaging equipment.
Broadband Ultrasonic Transducers
NASA Tech Briefs ; 10 , 2
1986-05-01
Miscellaneous
No indication
English