DocumentCode :
2351572
Title :
5J-2 A Method to Control the Electrical Impedance of Phased Array Elements
Author :
Hynynen, Kullervo
Author_Institution :
Dept. of Med. Biophys., Toronto Univ., Ont.
fYear :
2006
fDate :
2-6 Oct. 2006
Firstpage :
1052
Lastpage :
1055
Abstract :
A method that uses lateral coupling to generate the ultrasound waves was tested for reducing the electrical impedance of small phased array elements. Cylindrical, radially polled transducer elements were driven in their length mode. The electrical impedance could be controlled by the cylinder wall thickness while the operation frequency was determined by the length of the cylinder. Acoustic intensity (averaged over the cylinder diameter) over 10 W/cm2 was measured from these elements
Keywords :
acoustic intensity; electric impedance; electric variables control; ultrasonic transducer arrays; ultrasonic waves; acoustic intensity; electrical impedance control; phased array transducer elements; ultrasound waves; Acoustic measurements; Acoustic testing; Acoustic transducers; Frequency; Impedance; Phased arrays; Thickness control; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
ISSN :
1051-0117
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
Type :
conf
DOI :
10.1109/ULTSYM.2006.252
Filename :
4152108
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2351572
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