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
Dynamometers
Eddy current sensors
Eddy-current device for measuring rotational speed
Elastic surface wave accelerometer
Electric meter testing method
Electric type speed meter
Electrical generator including components of an automotive...
Electrical measuring device