Directional heat loss anemometer transducer
Directional hot film anemometer transducer
Directional tap detection algorithm using an accelerometer
Directional thermal anemometer transducer
Displacement measurement with a spring and force measurement...
Displacement transducer system
Disposable accelerometer for blast monitoring
Distance measuring pipeline pig
Doppler acoustic wind sensor
Doppler effect frequency monitoring system
Drag flow meter
Drill pipe velocity monitoring system
Dual output ac transducer
Dual path ultrasonic fluid flow metering system and method
Dual scale vehicle gauge
Dual speed sensor pickup assembly
Dual-polarization interferometer with a single-mode waveguide
Dynamically calibrated velocity instrumentation technique
Dynamically enhanced fiber optic accelerometer
Dynamometers