Improving the sensitivity of a humidity sensor based on fiber bend coated with a hygroscopic coating

Citation data:

Optics & Laser Technology, ISSN: 0030-3992, Vol: 43, Issue: 7, Page: 1301-1305

Publication Year:
2011
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Repository URL:
http://ro.uow.edu.au/eispapers/4334
DOI:
10.1016/j.optlastec.2011.03.028
Author(s):
Mathew, Jinesh; Semenova, Yuliya; Rajan, Ginu; Wang, Pengfei; farrell, Gerald
Publisher(s):
Elsevier BV
Tags:
Materials Science; Physics and Astronomy; Engineering; humidity; sensor; fiber; improving; bend; sensitivity; coated; hygroscopic; coating; Science and Technology Studies
article description
A highly sensitive all-fiber humidity sensor is demonstrated. The sensor behaves as a humidity dependent optical switch between 85% and 90% RH. This sensor also offers the advantages of simple structure and low cost and its response is fast and reversible in nature. The typical humidity response of the sensor is suitable for using it as a human breath rate monitor.