Circuit arrangement for ultrasonic burglar security systems oper
Circuit arrangement of an ultrasonic-presence motion detector, p
Circuit for automatic seabed discrimination
Coded acoustic alarm transmitter/receiver system
Coherent integrator
Collision detection device
Color sonar for underwater object collision avoidance
Color sonar system for displaying echo signals from fish
Combination tape measure and range finder
Combined speed and depth sensor transducer
Commutator and fiber brush rotating disc
Compensation of sonar image data primarily for seabed...
Constant range ultrasonic motion detector
Contact ultrasonic transducer head
Container and adaptor for use with fluid volume sensor
Control sensor for a construction machine
Controlled wave pattern ultrasonic burglar alarm
Correlation ranging
Correlation sonar system
Correlation sonar system