Abstract
Humidity is one of the most important parameters that needs to be controlled in various fields namely, environment monitoring, food processing, medicine, paper and semiconductor industries [1-2]. In this article, we report our recent research on measurement of relative humidity using multilayered fiber coated with hydrophilic polymer layer. We choose gelatin as the prime element to sense the change in relative humidity (RH) in the atmosphere due to fast response and reversible nature within a wide RH range [3-4]. We first reduced the fiber dimension to a few microns using flame heated taper drawing technique and then coated the fiber with gelatin gel.
© 2015 Japan Society of Applied Physics, Optical Society of America
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