Simultaneous Measurement of Humidity and Temperature Based on a Long-Period Fiber Grating Inscribed in Fiber Loop Mirror
A fiber loop mirror sensor with a long period grating (LPG) inscribed in the polarization maintaining fiber (PMF) is proposed and experimentally demonstrated for the measurement of humidity and temperature simultaneously. The LPG is inscribed in the PMF by a CO 2 laser and then connected with a 3-dB...
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| Veröffentlicht in: | IEEE sensors journal 2014-03, Vol.14 (3), p.893-896 |
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| container_title | IEEE sensors journal |
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| creator | Liu, Honglin Liang, Houhui Sun, Mingming Ni, Kai Jin, Yongxing |
| description | A fiber loop mirror sensor with a long period grating (LPG) inscribed in the polarization maintaining fiber (PMF) is proposed and experimentally demonstrated for the measurement of humidity and temperature simultaneously. The LPG is inscribed in the PMF by a CO 2 laser and then connected with a 3-dB coupler to form a fiber loop mirror. The proposed sensor is created through coating a thin layer of polyvinyl alcohol onto the surface of PM-LPG, which can change its refractive index with different humidity levels. The resonance wavelength and its intensity varied with temperature and humidity, so humidity and temperature can be measured simultaneously. The humidity and temperature sensitivity of 0.1723 nm/%RH and 0.2174 nm/°C with the measurement errors of 2.6%RH and 0.2 °C were obtained. |
| doi_str_mv | 10.1109/JSEN.2013.2290837 |
| format | Article |
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The LPG is inscribed in the PMF by a CO 2 laser and then connected with a 3-dB coupler to form a fiber loop mirror. The proposed sensor is created through coating a thin layer of polyvinyl alcohol onto the surface of PM-LPG, which can change its refractive index with different humidity levels. The resonance wavelength and its intensity varied with temperature and humidity, so humidity and temperature can be measured simultaneously. The humidity and temperature sensitivity of 0.1723 nm/%RH and 0.2174 nm/°C with the measurement errors of 2.6%RH and 0.2 °C were obtained.</description><identifier>ISSN: 1530-437X</identifier><identifier>EISSN: 1558-1748</identifier><identifier>DOI: 10.1109/JSEN.2013.2290837</identifier><identifier>CODEN: ISJEAZ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Humidity ; humidity sensor ; long-period grating ; Optical fiber polarization ; Optical fiber sensors ; Optical sensors ; Polyvinyl alcohol ; simultaneous measurement ; Temperature measurement ; Temperature sensors</subject><ispartof>IEEE sensors journal, 2014-03, Vol.14 (3), p.893-896</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Mar 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c293t-4ce5ebe147196003b397ba4624ddd0163d8e4982ec50d429577904a93deea46a3</citedby><cites>FETCH-LOGICAL-c293t-4ce5ebe147196003b397ba4624ddd0163d8e4982ec50d429577904a93deea46a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6670050$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6670050$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Liu, Honglin</creatorcontrib><creatorcontrib>Liang, Houhui</creatorcontrib><creatorcontrib>Sun, Mingming</creatorcontrib><creatorcontrib>Ni, Kai</creatorcontrib><creatorcontrib>Jin, Yongxing</creatorcontrib><title>Simultaneous Measurement of Humidity and Temperature Based on a Long-Period Fiber Grating Inscribed in Fiber Loop Mirror</title><title>IEEE sensors journal</title><addtitle>JSEN</addtitle><description>A fiber loop mirror sensor with a long period grating (LPG) inscribed in the polarization maintaining fiber (PMF) is proposed and experimentally demonstrated for the measurement of humidity and temperature simultaneously. The LPG is inscribed in the PMF by a CO 2 laser and then connected with a 3-dB coupler to form a fiber loop mirror. The proposed sensor is created through coating a thin layer of polyvinyl alcohol onto the surface of PM-LPG, which can change its refractive index with different humidity levels. The resonance wavelength and its intensity varied with temperature and humidity, so humidity and temperature can be measured simultaneously. The humidity and temperature sensitivity of 0.1723 nm/%RH and 0.2174 nm/°C with the measurement errors of 2.6%RH and 0.2 °C were obtained.</description><subject>Humidity</subject><subject>humidity sensor</subject><subject>long-period grating</subject><subject>Optical fiber polarization</subject><subject>Optical fiber sensors</subject><subject>Optical sensors</subject><subject>Polyvinyl alcohol</subject><subject>simultaneous measurement</subject><subject>Temperature measurement</subject><subject>Temperature sensors</subject><issn>1530-437X</issn><issn>1558-1748</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1LAzEQhhdRsFZ_gHgJeN462SSbzVGL_ZBWhVbwtqSbaUnpJjXZBfvv3dLiaYZ5n5mBJ0nuKQwoBfX0tnh9H2RA2SDLFBRMXiQ9KkSRUsmLy2PPIOVMfl8nNzFuAaiSQvaS34Wt212jHfo2kjnq2Aas0TXEr8mkra2xzYFoZ8gS6z0G3XQ5edERDfGOaDLzbpN-YrDekJFdYSDjDrJuQ6YuVqGbGGLdOZp5vydzG4IPt8nVWu8i3p1rP_kavS6Hk3T2MZ4On2dplSnWpLxCgSukXFKVA7AVU3KleZ5xYwzQnJkCuSoyrAQYnikhpQKuFTOIHaZZP3k83d0H_9NibMqtb4PrXpZUgKBUKWAdRU9UFXyMAdflPthah0NJoTwKLo-Cy6Pg8iy423k47VhE_OfzXAIIYH9Fl3dD</recordid><startdate>201403</startdate><enddate>201403</enddate><creator>Liu, Honglin</creator><creator>Liang, Houhui</creator><creator>Sun, Mingming</creator><creator>Ni, Kai</creator><creator>Jin, Yongxing</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The LPG is inscribed in the PMF by a CO 2 laser and then connected with a 3-dB coupler to form a fiber loop mirror. The proposed sensor is created through coating a thin layer of polyvinyl alcohol onto the surface of PM-LPG, which can change its refractive index with different humidity levels. The resonance wavelength and its intensity varied with temperature and humidity, so humidity and temperature can be measured simultaneously. The humidity and temperature sensitivity of 0.1723 nm/%RH and 0.2174 nm/°C with the measurement errors of 2.6%RH and 0.2 °C were obtained.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JSEN.2013.2290837</doi><tpages>4</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Humidity humidity sensor long-period grating Optical fiber polarization Optical fiber sensors Optical sensors Polyvinyl alcohol simultaneous measurement Temperature measurement Temperature sensors |
| title | Simultaneous Measurement of Humidity and Temperature Based on a Long-Period Fiber Grating Inscribed in Fiber Loop Mirror |
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