Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: IEEE Ultrasonics Symposium; New York, NY; New York, NY
Год издания: 2007
Идентификатор DOI: 10.1109/ULTSYM.2007.412
Ключевые слова: automation of measurings, physical acoustics, elastic properties, composites, ceramics, sound signal attenuation, Elastic waves, Elasticity, Waves, Frequency dependences, Frequency ranging, Ultrasonics
Аннотация: The pulse - phase method for examination of ultrasonic waves propagation In materials, including mediums with high attenuation of a sound was designed. By automation methods of measurings the opportunity of determination the elastic waves velocities with an frequency range 100 kHz - 30 MHz with the resolution on frequency of 10(-6)Показать полностьюHz is implemented. The phase method and a method of the frequency strobing for recording impulses are realized. These methods allow to define with precision not worse than 10(-9) second the time of ultrasonic waves propagation. Requirements to the minimum linear dimensions of samples are restricted by the method sensitivity only. Velocities of elastic waves and their signal attenuation in ceramic and composites are measured.
Журнал: 2007 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1-6
Номера страниц: 1637-1640
ISSN журнала: 10510117
Место издания: NEW YORK
Издатель: IEEE