Introduction

First, the most common example is the ultrasound. An ultrasound bounces sound waves off of the baby, and the reflected waves reflect back at different speeds. These reflected waves are processed to give an image of the baby.

In addition it is check inside other precious equipment and objects. For example, they are used in ports to check what is inside the bags.

Another application is sonar. Sound waves are continually sent to the ocean floor from the boat to measure the depth of sea. Now if something gets in between the boat and ocean floor, the waves are reflected back to the boat in less time.

Thirdly, Parking sensor systems use ultrasonic proximity detectors embedded in the front and rear bumpers, to measure the distances to nearby objects at low level. The sensors measure the time taken for each sound wave to be reflected back to the receiver. Then the system will warn the driver by a sound means about the risk of collision.

Also speakers, speakers are using sound waves to take a signal from a stereo and translate them into a series of vibrations. The speaker then takes these signals and vibrates the air exactly how the recorded track should sound.

Done by:

Abdullah Ahmad Mohammad Hefaity

Obaid Khamies

Class: 12-01