用光纤耦合自混合激光二极管测量杨氏模量

2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) Pub Date : 2016-07-11 DOI:10.1109/NUSOD.2016.7547080

Ke Lin, Yanguang Yu, J. Xi, Qinghua Guo, Jun Tong, Huijun Li

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引用次数: 2

摘要

研制了一种用于测量杨氏模量的新型光纤耦合自混频激光二极管。光路在光纤中耦合，而不是在自由空间中传输，这使得测量系统可以轻松可行地安装在许多应用场合。利用所设计的系统对6061铝合金试样进行了试验。所得的杨氏模量值为70.02 GPa，测量精度为0.16%，重复性高，与文献报道的标准值吻合较好。

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Young's modulus measurement using fibre-coupled self-mixing laser diode

A new fibre-coupled self-mixing laser diode is developed for measurement of Young's modulus. Instead of transmission in free space, the light path is coupled in a fibre, which enables the measuring system easily and feasibly to be installed in many application cases. A specimen made of aluminium alloy 6061 is tested by the system designed. The obtained value of Young's modulus is 70.02 GPa with 0.16% measurement accuracy, showing a high repeatability and a good agreement with the standard values reported in literatures.

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2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)

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