By Topic

Fiber-Optic Vibration Sensor Based on Beat Frequency and Frequency-Modulation Demodulation Techniques

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
$33 $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

6 Author(s)
Liang Gao ; Nanjing National Laboratory of Microstructures and School of Engineering and Applied Sciences, Nanjing University, Nanjing, P. R. China ; Shengchun Liu ; Zuowei Yin ; Liang Zhang
more authors

In this letter, a novel multilongitudinal mode fiber-optic vibration sensor is presented. The beat frequency of any two different laser modes is modulated by the vibration signal. The modulated beat frequency signal can be demodulated by a frequency-modulation demodulator. It is demonstrated that the vibration from 60 Hz to 20 KHz can be measured successfully. The sensor has high sensitivity and high signal-to-noise ratio, especially between 500 Hz and 7.4 KHz.

Published in:

IEEE Photonics Technology Letters  (Volume:23 ,  Issue: 1 )