We can’t hear all levels of sounds. Sound waves with very high frequencies are called ultrasound and our ears can’t detect them. Ultrasound waves have multiple uses including: detecting ...

Any sound above 20 000 Hz is called ultrasound. It is too high pitched for humans to hear, but other animals (such as dogs, cats, dolphins and bats) can hear ultrasound. Ultrasound waves are ...

However, recent data from the University of Utah has demonstrated that using sound waves via ultrasound guided by MRI scanning was able to treat depression noninvasively, with results as quickly ...

MIT innovates a novel framework for controlling ultrasound waves using microscale acoustic metamaterials, advancing computing technologies.

A team of marine biologists from Norway, the U.S. and Denmark has conducted the first hearing test of a live baleen whale.

Piezoelectric ultrasonic transducers are widely used to generate ultrasonic waves. In the existing transducer design ... In the TBS, the distribution of sound pressure in the sound field is used as a ...

A micro computer sends a electric pulse to ultrasonic sensor via a GPIO Pin. The ultra sonic sensor intern sends out a sound wave. The sound wave bounces off an object and returns to the sensor. The ...

Researchers at MIT have developed a design framework for controlling ultrasound wave propagation in microscale acoustic ...

Abstract: Early stage failure signals of rotating machinery are weak, and only high-sensitivity sensors can detect the mechanical damage status. This article proposes a design method for a highly ...