Design and experimental study of microcantilever ultrasonic detection transducers
This paper presents the analysis, design, and experimental study of a microcantilever optically-activated ultrasonic detection transducer. An analytical model was derived using 1-D cantilever structural dynamics, leading to the optimization of the transducer design. Finite element modeling enabled d...
| Veröffentlicht in: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control. - 1986. - 56(2009), 12 vom: 19. Dez., Seite 2722-32 |
|---|---|
| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2009
|
| Zugriff auf das übergeordnete Werk: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control |
| Schlagworte: | Journal Article |
| Zusammenfassung: | This paper presents the analysis, design, and experimental study of a microcantilever optically-activated ultrasonic detection transducer. An analytical model was derived using 1-D cantilever structural dynamics, leading to the optimization of the transducer design. Finite element modeling enabled dynamic simulation to be performed, with results in good agreement with the analytical model. Transducers were fabricated using MEMS (microelectromechanical systems) techniques. Experimental results are presented on remote noncontact detection of ultrasound using the fabricated transducers; high SNR is achieved for the detected signals, even for relatively low ultrasonic amplitudes. Both analysis and experimental study show that the transducer has a sensitivity approximately 1 to 2 orders of magnitude higher than that of conventional optical detection techniques. Furthermore, we show that the dominant factor in the increased sensitivity of the transducer is the resonant nature of the finger structure |
|---|---|
| Beschreibung: | Date Completed 10.03.2010 Date Revised 30.12.2009 published: Print Citation Status MEDLINE |
| ISSN: | 1525-8955 |
| DOI: | 10.1109/TUFFC.2009.1363 |