EMFi based ultrasound transceivers

Author

Epure, Silviu ; Belea, Radu ; Aiordachioaie, Dorel

Author_Institution

Electron. & Telecommun. Dept., Dunarea de Jos Galati Univ., Galati, Romania

fYear

2010

fDate

23-26 Sept. 2010

Firstpage

117

Lastpage

122

Abstract

The paper presents some transceivers for ultrasonic transducers based on Emfit Ferro-Electret Film (EMFi). The proposed and discussed transceivers use the wide bandwidth of EMFi material-from audio up to hundreds of kHz, for in-air biomimetic sonar applications, allowing thus to develop new algorithms for object detection, recognition and navigation based on frequency modulation algorithms. Technological process of building new ultrasonic transducers, starting from blank EMFi foil, is presented as well as electronic circuits used for transmitter and receiver. Three transmitter circuits were designed and presented, all of them being capable to drive a capacitive load of about 30pF with 300Vpp sinusoidal signal, up to 300 kHz.

Keywords

biomimetics; dielectric devices; dielectric thin films; electrets; ferroelectric materials; sonar; transceivers; ultrasonic applications; ultrasonic transducers; EMFi based ultrasound transceivers; EMFi material; Emfit ferro-electret film; frequency modulation algorithms; in air biomimetic sonar applications; navigation algorithms; object detection algorithms; object recognition algorithms; ultrasonic transducers; Bandwidth; Bridge circuits; Equations; Preamplifiers; Receivers; Transducers; Transistors; EMFi; receiver; transceiver; transducer; ultrasounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Design and Technology in Electronic Packaging (SIITME), 2010 IEEE 16th International Symposium for

Conference_Location

Pitesti

Print_ISBN

978-1-4244-8123-1

Type

conf

DOI

10.1109/SIITME.2010.5653368

Filename

5653368