A REVIEW ON THE HUMIDITY SENSORS

  • Basavaraj H

Abstract

A wide variety of uses, including hygiene, comfortability, farming, food storage and processing, and electronic technology, demand rapid and precise humidity measurements. There are many benefits to sensors based on optical fibres over electronic sensors and good research attempts have been made in this area in recent years. The latest patterns of optical fibre humidity sensors are recorded in the current article. Along with the new technologies used by this aim, the evolution of optical structures built for humidity sensors will be studied. Excellently optical frameworks are also being researched to boost their sensitivity, such as long-period fibre gratings or fibre Bragg gratings. Sensors based on resonances based on lossy mode constitute a platform mixing high sensitivity with low complexity, both in respect of their manufacturing process and the appropriate materials. To boost the sensitivity of humidity sensors, innovative mechanisms, like resonators, are now being tested. Besides that, current findings on polymer optical fibres shows that this type of sensor's sensitivity has not yet surpassed its maximum. Therefore, in terms of resolution and sensitivity, there's still some potential for growth.

 

Published
2019-10-30
Section
Articles