An ultrasound wideband converter with the phased excitation of its two forming piezoplates

Autor:	N. A. Zaitseva, B. G. Stepanov
Rok vydání:	2015
Předmět:	Frequency response Engineering business.industry Mechanical Engineering Acoustics Bandwidth (signal processing) Converters Radiation Condensed Matter Physics Amplitude Mechanics of Materials General Materials Science Wideband business Excitation Voltage
Zdroj:	Russian Journal of Nondestructive Testing. 51:22-31
ISSN:	1608-3385 1061-8309
DOI:	10.1134/s1061830915010088
Popis:	Calculation results of frequency characteristics, which were obtained by solving the synthesis problem for ultrasound converters that contain two piezoplates separated by a passive layer that are excited by electric voltages that are different in amplitude and phase, are considered. By selecting the latter, the possibility of expanding the bandwidth up to 2–4 octaves on the condition of ensuring uniform amplitude-frequency and linear phase-response radiation characteristics is shown. The influence of the design values of the converters on these characteristics is analyzed. It is shown that it is possible to form short frequency-tunable acoustic pulses using the considered converters.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::48417e06eae2a548b9d54f7ee67ec99b https://doi.org/10.1134/s1061830915010088 Zobrazit plný text záznamu Full text from SpringerLink