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EXAMPLES FROM CORPUS
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A handset would contain an ultrasonic transmitter and the television fitted with a matching receiver.
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All 605s are fitted with a three-way catalytic converter, anti-lock braking system and an ultrasonic alarm as standard.
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Another use is to produce pictures of an unborn baby by reflecting ultrasonic waves off its body.
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Cats, too, are sensitive to ultrasonic frequencies and can hear mice and voles in hidden places.
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Dolphins emit rapid trains of high-pitched clicks, some audible to us, some ultrasonic .
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In autumn 1978, ultrasonic pulsing at two-second intervals was recorded at dawn at the King Stone.
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Parisi developed the first ultrasonic toothbrush for Cavitron Ultrasonics in New York in 1967.
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Similarly, how does a moth perceive the ultrasonic acoustic radar signals of a bat?