Humans can hear sound around ca. 20 - 20,000 vibrations per second; ultrasound is sound beyond that (faster).
Sound is produced by making the air vibrate - with a vibrating object.
Such sound can be produced by a transducer - specifically, one that uses a physical effect to convert electrical signals into vibrations. Producing a high-frequency electrical signal is relatively easy.
using ultrasonic interferometer
yes
because speakers doesn't create ultrasonic waves, they create sound waves
ultrasonic sound waves
because speakers doesn't create ultrasonic waves, they create sound waves
They produce ultrasonic waves.
ultrasonic sound waves
Ultrasonic sound waves
Loud speakers can produce ultrasonic waves. But since the normal purpose of loud speakers is to produce sounds for people to hear, there is seldom a reason to produce sounds that people can't hear (other than to annoy certain animals).
the bats do not produce supersonic sounds.they produce ultrasonic sounds.Thats the reason we cant hear them
whale can hear ultrasonic sound waves.
What?! Trace ultrasonic waves? Are you one hundred per cent cuckoo?! Why would anyone trace ultrasonic waves these days??