Retrieve the Material Related Parameters from a Self-Mixing Signal Using Wavelet Transform

Authors

Fei XiaFollow
Yuxi Ruan, University of WollongongFollow
Yanguang Yu, University of WollongongFollow
Qinghua Guo, University of WollongongFollow
Jiangtao Xi, University of WollongongFollow
Jun Tong, University of WollongongFollow

RIS ID

133609

Publication Details

F. Xia, Y. Ruan, Y. Yu, Q. Guo, J. Xi & J. Tong, "Retrieve the Material Related Parameters from a Self-Mixing Signal Using Wavelet Transform," in IFCS 2018 - IEEE International Frequency Control Symposium, 2018, pp. 1-4.

Abstract

This paper presents a method for retrieving material related parameters using a self-mixing interferometric (SMI) configuration. The material sample to be tested is used form the external cavity of a laser diode (LD). A SMI signal generated from the SMI system carries the information of the cavity movement. By applying wavelet transform onto the SMI signals, both fundamental resonant frequency and the magnitude decay of the vibration from the external cavity can be obtained, from which, we can calculate a few material related parameters such as Young's modulus and internal friction.