The definition of Ultrasound
Ultrasound is the sound frequency of greater than 20,000 cycles per second, or 20kHz. Voice touched by the human ear is in a range of 20Hz to 20kHz.
Features
Ultrasound can be directed beam.
Ultrasound obey the laws of reflection and refraction.
Ultrasonic waves reflected from objects of small size.
Disadvantages
Ultrasound propagates through an intermediary a bad species.
The amount of ultrasound reflected depends on the acoustic mismatch.
Create an image of ultrasound is in three steps - producing a wave of sound, and resonate and interpretation of those resonances.
No comments:
Post a Comment