Fiber-optic differential displacement measurement based on three cascaded interferometers

被引：0
|
作者：
Kinugasa, S [1 ]
Yoshinaga, J [1 ]
机构：
[1] Yamatake Corp, Fujisawa, Kanagawa 2518522, Japan
来源：
17th International Conference on Optical Fibre Sensors, Pts 1 and 2 | 2005年 / 5855卷
关键词：
differential displacement; coherence length; optical path difference; white light interferometry; TEMPERATURE SENSOR;
D O I：
10.1117/12.623274
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new type of white-light-interferometric (WLI) fiber optic sensor is proposed. Three cascaded interferometers enable differential measurement. Two interferometers among the three are used for sensing. The other is for processing, which converts the imbalance of optical path difference (OPD) between the two sensing interferometers into differential displacement. This unique three-cascaded WLI sensor system is described in detail with some experimental results.
引用
收藏
页码：631 / 634
页数：4
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