Title :
A novel normalization method for improving the sensing performance of a self-mixing interferometry
Author :
Zhenghao Liu; Bin Liu;Yuanlong Fan;Yanguang Yu;Jiangtao Xi; Qinghua Guo; Ke Lin
Author_Institution :
School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Australia
Abstract :
This paper presents a novel normalization approach to avoid the negative influence of an inaccurate normalization on SMI based measurements. Firstly, a series of simulations was conducted with the frequency domain based alpha measurement method to assess the influence of normalization on the accuracy of alpha estimation. Then, by investigating the correspondence between normalization error and the dispersion of estimation results, we proposed a novel method that rectifies the normalization error by employing the estimation results of alpha. The effectiveness of the proposed method has been confirmed by experimental verifications.
Keywords :
"Power measurement","Vibrations","Cavity resonators","Estimation","Optical sensors"
Conference_Titel :
TENCON 2015 - 2015 IEEE Region 10 Conference
Print_ISBN :
978-1-4799-8639-2
Electronic_ISBN :
2159-3450
DOI :
10.1109/TENCON.2015.7373113