Monomodal optical fibre hydrophone operating by the elastooptica

Monopole transmitter for a sonic well tool

Mosaic arrays using micromachined ultrasound transducers

Motion sensing device

Moulded transducer

Moving-coil electrodynamic electroacoustical transducer

Multi piston electro-mechanical transduction apparatus

Multi-barrel air gun module

Multi-channel fiber optic sensor system

Multi-layer acoustically transparent sonar array

Multi-layer composite transducer array

Multi-layer polymer electroacoustic transducer assembly

Multi-layer tiled array

Multi-lever miniature fiber optic transducer

Multi-mode pipe projector

Multibeam lens/filter combination for sonar sensor

Multiple beam lens transducer for sonar systems

Multiple beam lens transducer with collimator for sonar systems

Multiple frequency range hydraulic actuator

Multiple frequency steerable acoustic transducer