材料科学
光纤布拉格光栅
温度测量
电阻式触摸屏
计量学
等离子体
光学
光电子学
复合材料
计算机科学
波长
计算机视觉
量子力学
物理
作者
Jindong Wang,Zhiyuan Wang,Liyang Jin,Juan Li,Jingsheng Huang,Tao Zhu
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2023-05-05
卷期号:31 (11): 17514-17514
被引量:2
摘要
Large strain measurement under high-temperature environment has been a hot but difficult research issue in the fields of measurement and metrology. However, conventional resistive strain gauges are susceptible to electromagnetic interference at high temperature, and typical fiber sensors will be invalid under high-temperature environment or fall off under large strain conditions. In this paper, aiming to achieve effective and precision measurement of large strain under high-temperature environment, a systematic scheme combining a well-designed encapsulation of a fiber Bragg grating (FBG) sensor and a special surface treatment method using plasma is presented. The encapsulation protects the sensor from damage while achieving partial thermal isolation and avoiding shear stress and creep, resulting in higher accuracy. And the plasma surface treatment provides a new bonding solution which can greatly improve the bonding strength and coupling efficiency without damaging the surface structure of the object under test. Suitable adhesive and temperature compensation method are also carefully analyzed. Consequently, large strain measurement up to 1500 µɛ under high-temperature (1000°C) environment is experimentally achieved in a cost-effective way.
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