Type of Document Master's Thesis Author Chen, Qiao Author's Email Address email@example.com URN etd-12052002-154013 Title ESA based fiber optical humidity sensor Degree Master of Engineering Department Electrical and Computer Engineering Advisory Committee
Advisor Name Title Claus, Richard O. Committee Chair Jacobs, Ira Committee Member Spillman, William B. Jr. Committee Member Keywords
- humidity fiber optic ESA
Date of Defense 2002-11-21 Availability unrestricted AbstractSeveral techniques for measuring humidity are presented. The goal of the study is to use
the electrostatic self-assembled monolayer synthesis process to fabricate a Fabry-Parot
Cavity based optical fiber humidity sensor. The sensing scheme bases on the refractive
index change with relative humidity of the film applied to the end of optical fiber. That is,
the change in reflected optical power indicates certain humidity. To achieve this, some
chemicals induce on specific coating materials were applied at the end of optical fiber. In
this thesis, experimental results are given to prove that the humidity sensor has high
sensitive and fast response time. Furthermore, we investigate the potential for the use of
human breathing monitoring and air flow rate detection. Results from preliminary tests of
each are given.
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