A fiber-coupled self-mixing laser diode for the measurement of young's modulus

Authors

Ke Lin, University of WollongongFollow
Yanguang Yu, University of WollongongFollow
Jiangtao Xi, University of WollongongFollow
Hui Jun Li, University of WollongongFollow
Qinghua Guo, University of WollongongFollow
Jun Tong, University of WollongongFollow
Lihong Su, University of WollongongFollow

RIS ID

108262

Publication Details

K. Lin, Y. Yu, J. Xi, H. Jun. Li, Q. Guo, J. Tong & L. Su, "A fiber-coupled self-mixing laser diode for the measurement of young's modulus," Sensors, vol. 26, (6) pp. 928-1-928-14, 2016.

Abstract

This paper presents the design of a fiber-coupled self-mixing laser diode (SMLD) for non-contact and non-destructive measurement of Young's modulus. By the presented measuring system, the Young's modulus of aluminum 6061 and brass are measured as 70.0 GPa and 116.7 GPa, respectively, showing a good agreement within the standards in the literature and yielding a much smaller deviation and a higher repeatability compared with traditional tensile testing. Its fiber-coupled characteristics make the system quite easy to be installed in many application cases.