Medical ultrasonic imaging system with three-state ultrasonic pulse and improved pulse generator

Autor:	Stuart L. Carp, Lazar A. Shifrin, Samuel H. Maslak
Rok vydání:	2003
Předmět:	Materials science Acoustics and Ultrasonics Arts and Humanities (miscellaneous) Pulse generator Acoustics Waveform Ultrasonic sensor Output impedance Voltage source Time shifting Pulse (physics) Voltage
Zdroj:	The Journal of the Acoustical Society of America. 113:697
ISSN:	0001-4966
Popis:	A three-state, pulse width modulated, bipolar waveform is constructed by summing a first component with an inverted, time-shifted version of the first component. By properly selecting the time interval for the time shift of the second component, frequency filtering benefits can be obtained. The three-state waveform is generated by a switched voltage source that provides a low, constant source impedance for all three voltage states.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bf909157e697e8c706d288517475601f https://doi.org/10.1121/1.1560311 Zobrazit plný text záznamu