Acoustic flute web edge sensor
Acoustic lens arrangement
Acoustic method and apparatus for measuring micron and submicron
Acoustic method and device for distance measurement
Acoustic pipe length measuring apparatus
Acoustic pulse echo ranging system
Acoustic pulse-echo wall thickness method and apparatus
Acoustic range finding system
Acoustic range finding system
Acoustic range-finding system
Acoustic sub-surface interrogator
Acoustic-propagation-time measuring apparatus
Acousto-optic two-dimensional coherent optical modulator
Active detection system using simultaneous multiple transmission
Adaptive acoustic signal target detection system
Adaptive predictor of surface reverberation in a bistatic sonar
Adjustable position sonar transducer depth finder
Adjustable ultrasonic level measurement device
Aiming point system and technique
Apodization of ultrasound transmission