Piezoelectric materials have many applications, including sonar technologies and devices that generate and sense ultrasound waves. But for these devices to efficiently generate sonar or ultrasound ...

They’re even able to penetrate the outer shell of a submarine. Since the human body absorbs ultrasound energy, a sonar beam of this intensity could cause nausea and blurry vision in the ...

The device shows that the distance from one wall to the opposite wall is 8.25 m. If the speed of ultrasound in air is 330 m/s, how long does it take for the ultrasound to travel to the far wall ...

While a well-known use of this is sonar, ultrasonic sensors can also be put to use to make a radar-like system. This ultrasonic radar project is from [mircemk] who uses a small ultrasonic distance ...

The device shows that the distance from one wall to the opposite wall is 8.25 m. If the speed of ultrasound in air is 330 m/s, how long does it take for the ultrasound to travel to the far wall ...