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Science Newsletter of the Faculty fo Physics
This is a new bulletin, which, as we hope, will bring fresh, updated information on scientific news, research activities, and related events in the life of our department to our staff members, undegraduate and graduate students, postdocs, collaborators and partners. We greatly hope that this Science Newsletter will help us to find new partners in research and shorten the way from fundamental research to applications and innovations, from our fundamental discoveries to their successful implementations in not too distant future.
XIV National School-Seminar "Wave phenomena in inhomogeneous media"
The conference papers from the School-Seminar «Waves-2014» will be submitted for publishing in the Memoirs of the Faculty of Physics journal.
| Journals » Memoirs of the Faculty of Physics » Issues » 2014 » # 5 |
Ultrasound automated system for diagnosis of the elastic properties of solids
A.I. Kokshayskiy, A.I. Korobov, N.I. Odina
Department of acoustics, Faculty of Physics, M.V.Lomonosov Moscow State University. Moscow 119991, Russia.This paper presents the results of a non-contact diagnostics of materials with low acoustic impedance and solid plates with air ultrasound. For generating and receiving acoustic waves in the air in the frequency range from 0.08 to 2 MHz ultrasound was developed automated measuring system and measurement technique in pulse mode. Generating and receiving ultrasound air carried with focused acoustic transducer. Determination of elastic properties of thin plates of solid work was carried out using a zero anti-symmetric Lamb wave modes. For diagnostic materials with low acoustic impedance used longitudinal acoustic wave. Was measured density expanded polystyrene and the velocity of longitudinal waves in it, calculated impedance and coefficient of elasticity of the material.
| URL: | http://uzmu.phys.sunmarket.com/abstract/2014/5/145308 |
| PACS: | 40.00.00 ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
| UDC: | 534-16 |
| Цитата: | А.И. Кокшайский, А.И. Коробов, Н.И. Одина. Ультразвуковая автоматизированная установка для диагностики упругих свойств твердых тел // Учен. зап. физ. фак-та Моск. ун-та. 2014. № 5. 145308 |