Invention Grant
US07651862B2 Method and apparatus for distributed sensing of volatiles using a long period fiber grating sensor with modulated plastic coating for environmental monitoring
失效
使用具有调制塑料涂层的长周期光纤光栅传感器进行环境监测的挥发物分布式感测方法和装置
- Patent Title: Method and apparatus for distributed sensing of volatiles using a long period fiber grating sensor with modulated plastic coating for environmental monitoring
- Patent Title (中): 使用具有调制塑料涂层的长周期光纤光栅传感器进行环境监测的挥发物分布式感测方法和装置
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Application No.: US10469216Application Date: 2002-02-26
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Publication No.: US07651862B2Publication Date: 2010-01-26
- Inventor: Adrian Ponce , Dmitri A. Kossakovski , Gregory H. Bearman
- Applicant: Adrian Ponce , Dmitri A. Kossakovski , Gregory H. Bearman
- Applicant Address: US CA Pasadena
- Assignee: California Institute of Technology
- Current Assignee: California Institute of Technology
- Current Assignee Address: US CA Pasadena
- Agent Daniel L. Dawes; Marcus C. Dawes
- International Application: PCT/US02/05816 WO 20020226
- International Announcement: WO02/068936 WO 20020906
- Main IPC: G01N21/17
- IPC: G01N21/17 ; G01N21/84 ; G02B6/10
Abstract:
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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