Absolute sapphire optical fiber sensor for high-temperature applications

被引：0
|
作者：
Xiao, H [1 ]
Zhao, W [1 ]
Lockhart, R [1 ]
Wang, J [1 ]
Wang, AB [1 ]
机构：
[1] Fiber & Electroopt Res Ctr, Blacksburg, VA 24061 USA
来源：
SENSORS AND CONTROLS FOR ADVANCED MANUFACTURING | 1997年 / 3201卷
关键词：
fiber sensor; sapphire; absolute EFPI; high-temperature;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper describes sapphire fiber-based EFPI sensors incorporated with wavelength scanning absolute signal demodulation Silica-based optical fiber extrinsic Fabry-Perot interferometric (EFPI) sensors have been very successfully used in measuring a wide range of physical and chemical parameters. However, these fibers can only sustain temperatures of 800 degrees C because of germanium thermal diffusion affecting both the attenuation and waveguide multi-mode properties of die fiber. Since sapphire has a melting point above 2000 degrees C, sapphire optical fiber can be potentially used up to 2000 degrees C in an EFPI scheme. We obtain a resolution of 0.02 pm with a dynamic range of 27 mu m for micro-displacement measurement.
引用
收藏
页码：36 / 42
页数：7
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