A novel fiber-optic ice sensor capable of identifying ice type accurately

被引：28

作者：

Ge, Junfeng ^{[1
]}

Ye, Lin ^{[1
]}

Zou, Jianhong ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Control Sci & Engn, Wuhan 430074, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2012年 / 175卷

基金：

中国国家自然科学基金;

关键词：

Aircraft icing detection; Fiber-optic ice sensor; Oblique fiber end-face; Ice type identification; Optical intensity distribution; AIRCRAFT;

D O I：

10.1016/j.sna.2011.12.016

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper introduces a novel fiber-optic ice sensor with a differential structure of dual signal fiber bundles and an oblique end-face of fibers, not perpendicular to the axis of the optic fiber. An experimental facility to simulate aircraft icing on the sensor and measure the ice thickness was set up and used to measure the ice-growth curves for different types of ice accreted at different temperatures. The curves turned out very distinct from each other. With increasing ice thickness, the output voltage of the sensor would reduce rapidly for glazed ice, increase rapidly for rime ice, and make no remarkable change for mixed ice. These different trends were attributed to the different optical intensity distributions in the fibers for different ice types, which can be used to reliably identify the ice type and accurately measure the ice thickness. This fiber-optic ice sensor can be of great value in direct ice detection for aerospace applications. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：35 / 42

页数：8