A Micromachined Acoustic Multiplexer for Ultrasound and Photoacoustic Imaging Applications Academic Article

abstract

• In this letter, we report the design, fabrication, and testing of a novel micromachined silicon-based acoustic multiplexer. The acoustic multiplexer is capable of selectively transmitting ultrasound signals traveling in multiple acoustic channels one at a time. This makes it possible to send and/or receive multiple channels of ultrasound signals in a serial manner with only one single-element ultrasound transducer, followed by single channel of data acquisition electronics. An eight-channel acoustic multiplexer was constructed and the switching performance of the multiplexer was tested with ultrasound transmission experiment. An excellent signal ON/OFF ratio of 6.5 was achieved between two adjacent acoustic channels. The functionality of acoustic multiplexer in ultrasound imaging system was demonstrated by conducting photoacoustic imaging on an optically absorptive target inside an optical phantom. The micromachined acoustic multiplexer could be a useful component in designing new ultrasound transceiver systems for imaging applications. 2014 IEEE.

authors

• Zou, Jun

published proceedings

• JOURNAL OF MICROELECTROMECHANICAL SYSTEMS

altmetric score

• 0.5

author list (cited authors)

• Chang, C., Cho, Y., & Zou, J.

citation count

• 2

complete list of authors

• Chang, Cheng-Chung||Cho, Young||Zou, Jun

publication date

• June 2014

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Journal of Microelectromechanical Systems  Journal

keywords

• Acoustic Multiplexer
• Micromachining
• Silicon
• Ultrasound Imaging

Digital Object Identifier (DOI)

• 10.1109/JMEMS.2014.2306593

start page

• 514

end page

• 516

volume

• 23

issue

• 3

URL

• http://dx.doi.org/10.1109/jmems.2014.2306593