Rare earth flextensional transducer

Ratchet operated kick-up bracket

Reaction mass acceleration feedback device

Reconfigurable linear sensor arrays for reduced channel count

Reduced mechanical coupling interlink for spatially extended hyd

Reinforced foam core acoustic baffle

Remote cut-off valve

Remote energy supply process and system for an electronic...

Remote underwater laser acoustic source

Removable air mandrel

Removable power supply for an ocean bottom seismometer

Repairable fiber optic hydrophone assembly

Repairable waterproof geophone housing

Replaceable trolling motor transducer

Resolution transducers, systems and methods for the transmission

Resonance oscillator

Resonance ultrasonic transducer

Resonant acoustic emission transducer

Resonant acoustic projector

Resonator device and circuits for 3-D detection/receiving...