Acoustic imaging away from the borehole using a...

Acoustic sensor

Acoustic system for measuring the speed of currents in a...

Acoustical rate gyro

Activating motion detectors

Active magnetohydrodynamic rate sensor

Adapter for positioning a lens

Aerodynamic measurement probe of an airstream along a wall

Aerodynamically shaped probe

Aerospace movement probe

Air cooled electric motor having speed indicating means and...

Air data sensor

Air flow direction sensor equipped with an electromagnetic...

Air gun firing sensor apparatus and system

Air log

Air velocity gauge

Air velocity gauge

Air velocity measuring system and method for its calibration

Aircraft takeoff abort indicator

Airport wind direction and velocity indicator