Double piston acoustic transducer with selectable directivity
Doubly resonant push-pull flextensional
Driving device for a hydroacoustic transmitter
Driving means for acoustic marine vibrator
Dual axis transducer
Dual frequency sonar transducer assembly
Dual response acoustical sensor system
Dual rope vibration isolation module for towed hydrophone stream
Dual shuttle air gun
Dual-frequency sonar system
Dual-port air gun having a single shuttle
Dual-section push-pull underwater projector
Elastic pulse generator having a desired predetermined wave form
Elastomer structure for transducers
Electrically driveable shockwave source
Electrically steered acoustic lens
Electrio-acoustic transducers
Electro-acostic transducers
Electro-acoustic transducer
Electro-acoustic transducer