Cart (Loading....) | Create Account
Close category search window

Miniature In Vivo Chitosan Diaphragm-Based Fiber-Optic Ultrasound Sensor

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

8 Author(s)
Li Han Chen ; Sch. of Chem. & Biomed. Eng., Nanyang Technol. Univ., Singapore, Singapore ; Chi Chiu Chan ; Xiu Min Ang ; Weiyong Yuan
more authors

A fiber-optic Fabry-Perot interferometric chitosan membrane hydrophone for in vivo ultrasound measurements is proposed. The hydrophone is based on a thin chitosan film acting as a low-finesse Fabry-Perot cavity that is formed at the tip of hollow core fiber. Chitosan membrane provides maximum acoustic impedance matching for in vivo ultrasound measurement and optimizes the matched-loading condition due to its permeable property. The transduction mechanism is based on acoustically induced mechanical deformation of the chitosan sensing interferometer, which exhibits a voltage sensitivity of 0.5 mV/MPa or -306 dB re 1 V/μPa without the use of filtering and external preamplifiers. The sensor shows frequency response from 1 to 20 MHz in the presence of acoustic amplitude level up to 4 MPa with a minimum detectable pressure of 40 kPa. The wideband sensitive response, biocompatibility, and easy functionalization of chitosan membrane suggest the possibility for accurate and reliable measurements of exposure levels encountered in in vivo ultrasound measurements and may find applications as an alternative to piezoelectric hydrophone for ultrasound characterizations.

Published in:

Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:18 ,  Issue: 3 )

Date of Publication:

May-June 2012

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.