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Method and apparatus for distributed sensing of volatiles and a long period fiber grating sensor with modulated plastic coating for environmental monitoring
Method and apparatus for distributed sensing of volatiles and a long period fiber grating sensor with modulated plastic coating for environmental monitoring
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机译:用于环境监测的挥发物的分布式传感方法和装置以及带有调制塑料涂层的长周期光纤光栅传感器
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摘要
Optical time domain reflectometry caused by absorption of a volatile or analyte into the fiber optic cladding is used an optical nose. The fiber optics (14) are covered with a gas permeable film (44) which is patterned to leave millimeter wide gas permeable notches (48a-48d). The notches contain a sensing polymer that responds to different gases by expanding or contracting.
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机译:由挥发物或分析物吸收到光纤包层中引起的光时域反射法被用于光学鼻。光纤( 14 B>)覆盖有透气膜( 44 B>),该膜被构图以留下毫米宽的透气凹口( 48 B> < I> a I>- 48 B> d I>)。凹口包含传感聚合物,该聚合物通过膨胀或收缩来响应不同的气体。
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