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Design and performance evaluation of polyvinyl alcohol/polyimide coated optical fibre grating-based humidity sensors
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10.1063/1.4789768
/content/aip/journal/rsi/84/2/10.1063/1.4789768
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/2/10.1063/1.4789768

Figures

Image of FIG. 1.
FIG. 1.

Plot of the wavelength shift when a bare LPG with a period of 330 μm is exposed to various RI oil. The refractive indices of PVA (circle) and PI (square) are marked.

Image of FIG. 2.
FIG. 2.

Experimental setup for the polymer coated LPG sensor probes.

Image of FIG. 3.
FIG. 3.

Results for the PI coated LPG RH sensor probe with a linear equation fit applied as the straight line.

Image of FIG. 4.
FIG. 4.

Performance features of the PVA coated LPG RH sensor probe. (Inset) A linear equation fit between the RH responses between 40%RH and 85%RH (RH ascending).

Image of FIG. 5.
FIG. 5.

Comparison between the performance of PI and PVA coated LPG based RH sensor probes.

Tables

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Table I.

Comparison between the responses of PVA and PI and other coated fibre grating based RH sensors.

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/content/aip/journal/rsi/84/2/10.1063/1.4789768
2013-02-05
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Design and performance evaluation of polyvinyl alcohol/polyimide coated optical fibre grating-based humidity sensors
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/2/10.1063/1.4789768
10.1063/1.4789768
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