- ultrasonic Doppler effect
- Техника: ультразвуковой доплеровский эффект
Универсальный англо-русский словарь. Академик.ру. 2011.
ultrasonic Doppler effect
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Doppler effect — Change of wavelength caused by motion of the source. An animation illustrating how the Doppler effect causes a car engine or siren to soun … Wikipedia
Doppler ultrasonic flowmeter — Doppler ultrasound flowmeter a flowmeter that is sensitive to the Doppler effect, such as measuring blood flow by noting the Doppler effect in ultrasonic waves reflected off moving red blood cells. Called also ultrasonic or ultrasound Doppler f … Medical dictionary
Doppler fetal monitor — Invented in 1958 by Dr. Edward H. Hon[1] a Doppler fetal monitor or … Wikipedia
Ultrasonic flow meter — A ultrasonic flow meter measures the velocity of a liquid or gas through a pipe using acoustic sensors. This has some advantages over other measurement techniques. The results are slightly affected by temperature, density or conductivity.… … Wikipedia
Doppler — Johann Christian, Austrian mathematician and physicist, 1803–1853. See D. echocardiography, D. effect, D. phenomenon, D. shift, D. ultrasonography. A diagnostic instrument that emits an ultrasonic beam into the body; the ultrasound reflected from … Medical dictionary
Doppler ultrasonography — ultrasonography in which the shifts in frequency between emitted ultrasonic waves and their echoes are used to measure the velocities of moving objects, based on the principle of the Doppler effect. The waves may be continuous or pulsed; the… … Medical dictionary
Carotid Doppler machine — A carotid Doppler machine (the same ultrasound machine used to evaluate the fetus in pregnant women) is a device which can be used to measure blood flow velocities within the cervical carotid arteries, as well as the vertebral arteries and… … Wikipedia
Medical ultrasonography — This article is about using ultrasound to image the human body. For imaging of animals in research, see Preclinical imaging. Sonography redirects here. For the tactile alphabet called sonography , see Night writing. Medical ultrasonography… … Wikipedia
Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… … Wikipedia
ultrasonics — /ul treuh son iks/, n. (used with a sing. v.) the branch of science that deals with the effects of sound waves above human perception. [1930 35; see ULTRASONIC, ICS] * * * Vibrational or stress waves in elastic media that have a frequency above… … Universalium
sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… … Universalium
