4.pi. laser Doppler anemometer (LDA) for measuring the velocitie

Absorption line filter window and method for velocity measuremen

Acoustic emission analyzer

Active optical measurement device with weak signal...

Active optical measurement device with weak signal...

Aircraft velocity-altitude measuring means

Anti-interference speed detection methods and detectors thereof

Apparatus and method for detecting wind direction

Apparatus and method for determining aircraft position and veloc

Apparatus and method for determining the closing velocity of...

Apparatus and method for measuring the velocity of a flying sphe

Apparatus and method for movement measurement and position...

Apparatus and method using a holographic optical element for...

Apparatus for accurately determining a moving ball's position an

Apparatus for calculating optical flow and camera motion...

Apparatus for determining projectile's velocity

Apparatus for measuring an aircraft's speed and height

Apparatus for measuring meteorological parameters

Apparatus for measuring movement of light scattering bodies in a

Apparatus for measuring particle properties