Ultrasonic wave transmitter/receiver
Ultrasonic wave transmitting and receiving apparatus
Ultrasonic wave transmitting and receiving apparatus
Ultrasonic wave transmitting and receiving apparatus
Ultrasonic wave transmitting and receiving apparatus
Ultrasonic wave transmitting system
Unauthorized entry detection system
Underground mine surveillance system
Undersea geophysical exploration
Underwater acoustic absorber
Underwater acoustic pressure release reflector
Underwater connector
Underwater depth sounder with variable beam transducer
Underwater direction finding system
Underwater directional guidance apparatus
Underwater displacement probe
Underwater electrical potential detection system
Underwater electroacoustic transducer construction
Underwater imaging system
Underwater piezoelectric transducers