- pulse-echo method
- метод отраженных импульсов
Большой англо-русский и русско-английский словарь. 2001.
pulse-echo method
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echo — 1. A reverberating sound sometimes heard during auscultation of the chest. 2. In ultrasonography, the acoustic signal received from scattering or reflecting structures or the corresponding pattern of light on a CRT or ultrasonogram. 3. In… … Medical dictionary
echo ranging — /ˈɛkoʊ reɪndʒɪŋ/ (say ekoh raynjing) noun a method of locating solid underwater objects by measuring the time required for the echo of a pulse of soundwaves to return to the point of observation …
Spin echo — In nuclear magnetic resonance, spin echo refers to the refocusing of precessing nuclear spin magnetisation by a 180° pulse of resonant radiofrequency.The NMR signal observed following an initial excitation pulse (orange in diagram) decays with… … Wikipedia
Time of flight diffraction ultrasonics — Time of Flight Diffraction (TOFD) method of Ultrasonic inspection is a very sensitive and accurate method for nondestructive testing of welds for defects. TOFD is a computerised system that was invented in the UK in the 1970s for the nuclear… … Wikipedia
Thermographic inspection — refers to the nondestructive testing of parts, materials or systems through the imaging of the thermal patterns at the object s surface. Strictly speaking, the term thermography alone, refers to all thermographic inspection techniques regardless… … Wikipedia
ultrasonic inspection — A nondestructive test method that employs high frequency mechanical vibration energy to detect and locate structural discontinuities or differences and to measure the thickness of a variety of materials. Radiation frequency is of the order of 0.1 … Aviation dictionary
Gary Weil — Gary J. Weil has been a pioneer in Nondestructive testing (NDT) for over 30 years. In 1980, he founded EnTech Engineering, Inc., with corporate headquarters in Saint Louis, Missouri, U.S.A.. EnTech [http://entechworld.com] immediately became a… … Wikipedia
Magnetic resonance imaging — MRI redirects here. For other meanings of MRI or Mri, see MRI (disambiguation). Magnetic resonance imaging Intervention Sagittal MR image of the knee ICD 10 PCS B?3?ZZZ … Wikipedia
radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… … Universalium
Synthetic aperture radar — (SAR) is a form of radar in which the highly directional (and thus very large) rotating antenna used by conventional radar is replaced with many low directivity small stationary antenna positions scattered over some area near or around the target … 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
