Ultrasonic devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. …

Jun 16, 2026 · Ultrasonic waves are sound waves with frequencies beyond the human ear's audibility limit, which is about 20,000 hertz. Humans can typically hear sounds ranging from 20 to 20,000 …

We are delighted to announce a forthcoming special issue of Ultrasonics, dedicated to the rapidly evolving field of "Ultrasonic-assisted Microfluidics and Streaming”.

Define ultrasound and describe its characteristics as a form of energy. Explain the principles of sound wave propagation, including frequency, wavelength, amplitude, and velocity. Describe the …

Unlock your potential and deepen your expertise in ultrasonic testing (UT). Whether you're preparing for certification or looking to expand your skills, our range of NDT courses are designed to propel your …

6 days ago · Ultrasound, or ultrasonography, works on the principle that sound is reflected at different speeds by tissues or substances of different densities. Ultrasound technology has been used …

The term "ultrasonic" applied to sound refers to anything above the frequencies of audible sound, and nominally includes anything over 20,000 Hz. Frequencies used for medical diagnostic ultrasound …

Jul 25, 2025 · An ultrasonic system utilizes high-frequency sound waves, beyond the range of human hearing, to gather information about objects or environments. These systems operate by sending out …

Mar 20, 2026 · Do ultrasonic pest repellers work? The Grumpy Gardener explains why he wouldn't waste his money and would stick with old-school pest control methods instead.

Apr 17, 2026 · Do ultrasonic pest repellers actually work? Learn why results are inconsistent with these devices and which pest control methods are more effective for long-term results.