0 (of sound waves etc) beyond the range of human hearing -- ultralyd-, ultrasonisk
ultrasonic vibrations.
Accuracy and repeatability of bladder volume measurement using ultrasonic imagery.
The obstacle avoidance of the platform in an unknown space is accomplished using ultrasonic sensors integrated in the platform.
The ultrasonic transducers14 have a 10 degree aperture (beamwidth), without any secondary lobes.
They, therefore, investigated the utility of a limited cardiac scan, performed during a routine obstetric ultrasonic examination.
The main sensory element is a standard commercial ultrasonic sensor which can be rotated relative to the robot body.
Errors due to the ultrasonic beam width are clearly shown (1 to 6).
Ultrasonic examinations documented good fetal growth and did not display any abnormalities.
Despite their simple and accurate range measurement, use of ultrasonic transducers in map building is plagued by a few shortcomings.
