Review of Optical Humidity Sensors

Optical humidity sensors have evolved through decades of research and development, constantly adapting to new demands and challenges. The continuous growth is supported by the emergence of a variety of optical fibers and functional materials, in addition to the adaptation of different sensing mechanisms and optical techniques. This review attempts to cover the majority of optical humidity sensors reported to date, highlight trends in design and performance, and discuss the challenges of different applications.

Automated summary

Optical humidity sensors have evolved over decades by utilizing a variety of optical fibers and functional materials, along with different sensing mechanisms and optical techniques. This review aims to cover the majority of optical humidity sensors, highlight design and performance trends, and discuss challenges in various applications.