Method and apparatus for distributed sensing of volatiles using a long period fiber grating sensor with modulated plastic coating for environmental monitoring
adOptical time domain reflectometry caused by absorption of a volatile or analyte into the fiber optic cladding is used an optical nose. The fiber optics are covered with a gas permeable film which is patterned to leave millimeter wide gas permeable notches (-). The notches contain a sensing polymer...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | adOptical time domain reflectometry caused by absorption of a volatile or analyte into the fiber optic cladding is used an optical nose. The fiber optics are covered with a gas permeable film which is patterned to leave millimeter wide gas permeable notches (-). The notches contain a sensing polymer that responds to different gases by expanding or contracting. |
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