Title :
Development of a focussed ultrasonic transducer with increased efficiency
Author :
Singh, V.R. ; Kumar, Ashok
Author_Institution :
Nat. Phys. Lab., New Delhi, India
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;
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
DOI :
10.1109/RCEMBS.1995.533023
