- ultrasonic waves
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waves similar to sound waves but of such high frequency (20,000 hertz or higher) that the human ear does not perceive them as sound; see ultrasonics.
Medical dictionary. 2011.
ultrasonic waves
Look at other dictionaries:
ultrasonic waves — ultrasound … The new mediacal dictionary
irradiation by ultrasonic waves — ultragarsinis zondavimas statusas T sritis fizika atitikmenys: angl. irradiation by ultrasonic waves; sonic test vok. Durchschallung, f rus. прозвучивание, n pranc. irradiation par les ondes ultrasoniques, f; sondage acoustique, m … Fizikos terminų žodynas
Ultrasonic thickness gauge — measuring instrument for the non destructive investigation of the materials thickness using the ultrasonic waves.First ultrasonic thickness gauge in the world was constructed by the Polish engineer Werner Sobek from Katowice, in year 1967. The… … Wikipedia
Ultrasonic horn — is a device used to pass ultrasound into a liquid medium. It basically consists of a transducer, a device which consists of a piezoelectric material, cut properly and sandwiched between metal electrodes. When alternating electrical current passes … Wikipedia
ultrasonic communication — noun Underwater communication using ultrasonic waves • • • Main Entry: ↑ultrasonic … Useful english dictionary
Ultrasonic Force Microscopy — (UFM) has been developed in order to improve the details and image contrast on flat areas of interest where the AFM images are limited in contrast. The combination of AFM UFM allows a near field acoustic microscopic image to be generated. The AFM … Wikipedia
Ultrasonic cleaning — An ultrasonic cleaner is a cleaning device that uses ultrasound (usually from 15 400 kHz) and an appropriate cleaning solution to clean delicate items. The ultrasound is not effective without the cleaning solution; it enhances the effect of a… … Wikipedia
Ultrasonic grating — An ultrasonic wave is a sound wave having a frequency greater than 20 kHz. Because of the very small wavelength of ultrasonic waves compared to X rays they have considerable penetrating power. The human ear can not recognize ultrasonic waves, but … Wikipedia
ultrasonic — Relating to energy waves similar to those of sound but of higher frequencies (above 30,000 Hz). [ultra + L. sonus, sound] * * * ul·tra·son·ic sän ik adj 1 a) having a frequency above the human ear s audibility limit of about 20,000 hertz used of… … Medical dictionary
ultrasonic — adjective Date: 1923 1. having a frequency above the human ear s audibility limit of about 20,000 hertz used of waves and vibrations 2. utilizing, produced by, or relating to ultrasonic waves or vibrations < ultrasonic testing of metal > •… … New Collegiate Dictionary
