Laser hydrophone and virtual array of laser hydrophones
Laser sound detector
Laser velocimetry detection of underwater sound
Lateral compliance device for geophone springs
Lead terminal connection structure of an electroacoustic transdu
Leader cable anchor for a geophone
Level measuring device which can be assembled from components
Light and noise maker for diving use
Lightning protection for seismic data acquisition system
Liquid-immersible electrostatic ultrasonic transducer
Long life coaxial sparker for underwater sound source
Long line hydrophone
Long-life, low-maintenance air gun/hydro gun
Low cost composite transducer
Low distortion geophone spring
Low distortion hydrophone
Low distortion ratio hydrophone
Low drag body conformal acoustic array
Low flow-noise conformal fiber optic hydrophone
Low frequency acoustic projector