在钛基和镍基合金中嵌入fbg的高温应变传感新方法

IF 5.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Measurement Pub Date : 2025-06-12 DOI:10.1016/j.measurement.2025.118161

Song Zhang , Jianqiang Xin , Yang Liu , Hui Zhang

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引用次数: 0

摘要

提出了一种基于复合涂层FBG传感器的金属结构高温应变测量新方法，该方法利用等离子喷涂金属涂层将金属衬底与光纤传感器集成在一起。对复合涂层FBG光纤直径、喷涂涂层材料和槽结构等参数进行了优化。考虑到光纤光栅在等离子喷涂过程中的弯曲性能和保护作用，建议埋入直径为260 μm ~ 300 μm。对于5mm长的光栅传感器，单个7mm的槽可以保证光纤在集成拉伸测试后变形的均匀性。当采用NiCrAlY涂层与钛合金集成时，Cr/Ni涂层FBG传感器在500°C下可稳定工作在2130.85 μ /，灵敏度为1.01 pm/μ /。此外，当与镍基合金集成时，传感器在700°C下的工作温度可达2868.60 μ μ，灵敏度为1.07 pm/μ μ。实验结果验证了本文提出的集成程序能够解决金属材料高温应变测量问题。

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A novel method for high temperature strain sensing with embedded FBGs in titanium and nickel-based alloys

A novel method for high-temperature strain measurement of metal structures based on composite coated FBG sensors was proposed, which utilizing plasma-sprayed metal coating for integration of metal substrate and optical fiber sensor. The parameters such as the diameter of composite coated FBG fiber, the spraying coating material and the slot structure were optimized. A diameter of 260 μm to 300 μm is recommended for embedding, considering the bending property and protection of FBG during plasma spray. For a 5-mm long grating sensor, a single 7-mm slot can ensure the uniformity of deformation for the fibers in tensile test after integration. When integrated with titanium alloy using NiCrAlY coating, the Cr/Ni coated FBG sensor can operate up to 2130.85 μɛ stably at 500 °C with a sensitivity of 1.01 pm/μɛ. Also, when integrated with nickel-based alloy, the sensor can operate up to 2868.60 μɛ at 700 °C with a sensitivity of 1.07 pm/μɛ. The experiment results verified that the integration procedure proposed in this paper can solve the problem of strain measurement of metallic materials at high temperature.

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来源期刊

Measurement 工程技术-工程：综合

CiteScore

10.20

自引率

12.50%

发文量

1589

审稿时长

12.1 months

期刊介绍： Contributions are invited on novel achievements in all fields of measurement and instrumentation science and technology. Authors are encouraged to submit novel material, whose ultimate goal is an advancement in the state of the art of: measurement and metrology fundamentals, sensors, measurement instruments, measurement and estimation techniques, measurement data processing and fusion algorithms, evaluation procedures and methodologies for plants and industrial processes, performance analysis of systems, processes and algorithms, mathematical models for measurement-oriented purposes, distributed measurement systems in a connected world.