Development of a focussed ultrasonic transducer with increased efficiency

Author

Singh, V.R. ; Kumar, Ashok

Author_Institution

Nat. Phys. Lab., New Delhi, India

fYear

1995

fDate

15-18 Feb 1995

Firstpage

17258

Lastpage

17624

Abstract

An ultrasonic focussed transducer for high power applications with higher efficiency and increased intensity is developed. Ultrasonic energy is absorbed in the backing material of the transducer element. The transducer utilizes the energy at the rear side of the transducer element. New approaches proposed are based on the method of the total internal reflection and reflection by an acoustic mirror. Novel focussed transducers developed have 50% to 90% efficiency more than that of the conventional ones. Hence, the transducers developed can be used more effectively for high power ultrasonic applications like lithotripsy or industrial cleaning etc

Keywords

biomedical equipment; biomedical ultrasonics; radiation therapy; ultrasonic focusing; ultrasonic reflection; ultrasonic transducers; acoustic mirror reflection; backing material; focussed ultrasonic transducer; high power applications; increased efficiency; increased intensity; industrial cleaning; lithotripsy; total internal reflection; transducer element; ultrasonic energy; Acoustic reflection; Acoustic transducers; Acoustic waves; Aluminum; Biomedical transducers; Lenses; Mirrors; Optical reflection; Ultrasonic imaging; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995 and 14th Conference of the Biomedical Engineering Society of India. An International Meeting, Proceedings of the First Regional Conference., IEEE

Conference_Location

New Delhi

Print_ISBN

0-7803-2711-X

Type

conf

DOI

10.1109/RCEMBS.1995.533023

Filename

533023