Directing acoustic radiation using a phased array of piezoelectric transmitters

This thesis presents an acoustic phased array system utilizing piezoelectric transducers. The system is capable of operating at arbitrary frequencies into the low megahertz range, with a trade-off between phase accuracy and operational frequency. A maximum of sixteen elements can be introduced to the array and all elements are capable of operating at arbitrary phases relative to each other. Waveform generation is done in MATLAB and LabVIEW is used to interface between a host PC issuing commands and the array itself. Results from tests run using a four element array to demonstrate beam steering and focusing at 11 kHz are included and discussed.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2010

Author dc:creator

• Rodgers, Daniel Michael

Advisor dc:contributor.advisor

• Yoel Fink.

• Electrical Engineering and Computer Science.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/62669

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/62669