Title :
Humidity sensing using PMMA-PMTGA-PMMA polymer in low coherence interferometric system
Author :
McMurtry, S. ; Wright, J.D. ; Jackson, D.A. ; Keddie, J.L.
Author_Institution :
Appl. Opt. Group, Kent Univ., Canterbury, UK
fDate :
1/6/2000 12:00:00 AM
Abstract :
The authors describe a new optical humidity sensing system based on a multiplexed low coherence dual interferometric system allowing an absolute measurement at four different locations. The sensor is composed of a PMMA-PMTGA-PMMA polymer that combines good sensitivity and reproducibility for an overall accuracy of 1.21% relative humidity at equilibrium
Keywords :
fibre optic sensors; humidity measurement; humidity sensors; light interferometers; optical polymers; polymer blends; sensitivity; PMMA-PMTGA-PMMA polymer; absolute measurement; equilibrium; humidity sensing; low coherence interferometric system; multiplexed low coherence dual interferometric system; optical humidity sensing system; overall accuracy; relative humidity; reproducibility; sensitivity; sensor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000125
