Airborne sensor for listening to acoustic signals

Airgun having shaft-bearing-guided shuttle and capable of fast r

Airgun valve with slidable valve seat

All-optical towed and conformal arrays

Amplified acousto-optical vibration sensor and ultrasonic transd

Amplified tree structure technology for fiber optic sensor...

Anti-seismic device

Aperture control and apodization in a micro-machined...

Apparatus and method for detecting seismic waves

Apparatus and method for detecting swimmers

Apparatus and method for generating a seismic source signal

Apparatus and method for minimizing reception nulls in...

Apparatus and method for processing optical signals from two...

Apparatus and method of forming electrical connections to an...

Apparatus for degassing liquids

Apparatus for discriminating sound sources in a water environmen

Apparatus for distributing lubricant to air guns in a single air

Apparatus for fiber optic seismic exploration system

Apparatus for generating elliptically polarized shear waves

Apparatus for generating elliptically polarized shear waves