Study on force distribution of the tempered glass based on laser interference technology

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• 作者：Jin-Qi He^a ; Yuan Dong^a ; ^{laser_dongyuan@163.com" class="auth_mail" title="E-mail the corresponding author} ; Shu-Tao Li^a ; Hui-Long Liu^a ; Yong-Ji Yu^a ; Guang-Yong Jin^a ; Li-Da Liu^b
• 关键词：Tempered glass ; Mach&ndash ; Zehnder interferometer ; Interference fringes ; Phase unwrapping
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：126
• 期：24
• 页码：5276-5279
• 全文大小：859 K

文摘

The force distribution of inside the tempered glass is detected by the Mach–Zehnder interferometer. In the experiment, the interference fringes are captured by a CCD camera, filtered in frequency domain, and the tempered glass real phase distribution is obtained by utilizing branch-cut algorithm for phase unwrapping. The tempered glass internal force distribution can be derived by means of the relationship between phase distribution and external force. The results demonstrated that the force distribution is almost linear in direction to parallel the external pressure; although some fluctuations appear to be perpendicular to the external pressure, the overall change is smaller.