Distributed sound speed measurements for multiphase flow...

Distributed, unattended wastewater monitoring system

Doppler flow meter

Doppler flow meter and method

Doppler flowmeter

Doppler flowmeter for multiphase flows

Doppler method of measuring flow

Doppler system for measurement of blood flow during cardiopulmon

Doppler type ultrasonic flow meter

Doppler ultrasonic flowmeter

Doppler-type ultrasonic flowmeter

Double bluff body vortex meter

Double casing water meter

Double chamber container for metering liquid flow

Double helical flowmeter

Double multiple change-over valve, for controlling the operation

Double repetition rate doppler flow measurement system

Double straight tube coriolis type mass flow sensor

Double wing vortex flowmeter

Double wing vortex flowmeter with strouhal number corrector