As nouns the difference between sonar and ultrasound
is that sonar
is while ultrasound
is (physics) sound with a frequency greater than the upper limit of human hearing; approximately 20 kilohertz.
(nautical) A device that uses hydrophones (in the same manner as radar) to locate objects underwater.
* SONAR (acronym of sound navigation and ranging)
* Doppler sonar
(physics) sound with a frequency greater than the upper limit of human hearing; approximately 20 kilohertz
(medicine) The use of ultrasonic waves for diagnostic or therapeutic purposes
* (physics) infrasound