Detecting multiple phase flow in a conduit
Device for measuring the velocity of a variety of objects
Digitally controlled oscillator
Doppler current meter for use at great depths
Doppler effect speedometer
Doppler flow velocity distribution measuring apparatus
Doppler velocity profiler
Doppler-effect vehicle ground speed detecting apparatus having m
Doppler-effect vehicle ground speed detecting apparatus with mea
Doppler-effect vehicle ground-speed detecting apparatus having m
Downhole ultrasonic transit-time flowmetering means and method