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Miniature magneto-optic angular position sensor
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DOI：10.1364/OL.470646.png)
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摘要
En 中文
This Letter describes a miniature Fabry-Perot, contactless, magneto-optic sensor for angular position measurement. The sensor utilizes a magneto-optic fluid comprising bar-ium hexaferrite nanoplatelets that become birefringent in the presence of an external magnetic field and a compact fiber-optic sensor system for tracking the liquid's optical axis direction. An efficient temperature compensation sys-tem is provided which allows the use of otherwise highly temperature-sensitive magneto-optic liquids. An unambigu-ous measurement range of 90 degrees and a resolution of better than 0.05 degrees are demonstrated experimentally.
Keyword:
MAGNETIC FLUID
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
机构
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