Piezo-polymer ultrasound transducer with controlled resonance for medicine and robotics

Author

Fiorillo, Antonino S.

Author_Institution

Fac. of Eng., Sannio Univ., Benevento, Italy

Volume

1

fYear

1998

fDate

1998

Firstpage

729

Abstract

The need to control focus, range distance and spatial resolution is of crucial importance in many air ultrasound applications. Piezo-polymer based transducers may be used to overcome these problems. A curved transducer, based on this technology, is presented. Its peculiarity is that it is capable of resonating, in a controlled manner, over a wide frequency range, about two octaves over 20 kHz, by simply changing its bending radius. This characteristic allows us to not only investigate industrial and medical applications, but also to emulate, in all its complexity, the echo-location system of bats

Keywords

bioacoustics; biomedical transducers; biomimetics; frequency control; mechanoception; medical robotics; piezoelectric transducers; polymer films; ultrasonic transducers; PVDF film; air ultrasound applications; bats; bending radius change; bio-sonar; controlled resonance; curved transducer; echo-location system mimicking; frequency controllable transducer; medical transducer; piezo-polymer ultrasound transducer; robotics; wide frequency range; Biomedical equipment; Biomedical transducers; Electrical equipment industry; Frequency; Medical control systems; Medical services; Resonance; Spatial resolution; Ultrasonic imaging; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE

Conference_Location

Sendai

ISSN

1051-0117

Print_ISBN

0-7803-4095-7

Type

conf

DOI

10.1109/ULTSYM.1998.762251

Filename

762251