Fiber optic relative humidity and temperature sensor with the cascaded Vernier effect based on the C-shaped cavity structure
Ke Zhao,
Bojun Song,
Canjia Ye
et al.
Abstract:The water-absorbent sensing film, coated on the surface of traditional optical fiber humidity sensors, often suffers from detachment issues. In this paper, we present what we believe to be a new fiber-optic cascaded Fabry-Perot interferometer sensor for detecting relative humidity (RH) and temperature, without the need for sophisticated instrumentation. The sensing structure comprises two sections of single-mode optical fibers and a C-shaped cavity between them. The C-shaped cavity is created by grinding the s… Show more
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