Sensor for acoustic shockwave pulses

Sensor with an optical interferometric pick-off

Sensory signal output apparatus

Shaded transducer

Shallow water seismic energy source

Shaped piezoelectric composite array

Shear mode folded shell projector

Shielded electromagnetic acoustic transducers

Shielded hydrophone assembly

Shielding for seismic cables

Shock wave generator

Shock-hardened hydrophone

Shock-hardened, high pressure ceramic sonar transducer

Shock-resistant flextensional transducer

Short distance ultrasonic distance meter

Side looking sonar transducer

Signal conditioning and interconnection for an acoustic transduc

Signal sensor insensitive to static pressure variations

Signal stabilization in optical hydrophones

Single element cantilever mounted shear wave transducer