Jan 15, 2026
An optical fiber Fabry–Perot humidity sensor was constructed by coating a foamed polyimide (PI) membrane on the end of a multimode fiber. This sensor
Jan 31, 2026
In this article, we introduce a multi-channel fiber optic dew and humidity sensor which works using a novel method based on relation between surface p
Sep 15, 2025
The present paper reports the current trends of optical fiber humidity sensors. The evolution of optical structures developed towards humidity sensing,
Jan 09, 2026
An optical fiber humidity sensor was fabricated using a hydrophilic gel (agarose) deposited on the tapered plastic optical fiber (POF). The sensing element, agarose, can absorb and
Jan 26, 2026
The present paper developed the dual point humidity measuring sensor by using a polymer optical fiber (POF) based on a single illuminating fiber.
Feb 18, 2026
This study proposes a fiber-optic vernier sensor composed of two Fabry-Perot interferometers (FPIs) for measuring temperature and humidity. Temperatur
Jun 06, 2026
As fiber-optic humidity sensor technology continues to advance, we can expect to see increased adoption in various industries and applications. The
Dec 16, 2025
The main research achievements for the optical fiber humidity sensors in the past ten years are reviewed and discussed. Several key principles are classified and introduced, as well as
May 26, 2026
In the past decade, humidity measurements have ubiquitously gained consideration in the wide range of application paradigms such as industrial
Jul 05, 2026
Abstract Temperature and humidity are essential parameters in monitoring the health of patients in critical care. An optical fibre sensor has been developed for simultaneous measurement of
Jan 24, 2026
Humidity can act as a bridge between breath and sensing signals. Current monitoring methods depend on humidity-sensitive material characteristics. In this work, an all fiber-optic flexible
Feb 16, 2026
In recent years, there has been significant development and documentation of numerous gas and humidity sensors utilizing optical fiber
Oct 15, 2025
In this study, we propose an optical fiber humidity sensor based on MZI. No core fibers (NCFs) with different diameters are obtained by controlling the etch time, and CaAlg hydrogel films
Jan 10, 2026
A new optical fiber humidity sensor with high sensitivity is reported. We effectively control the light-intensity changes in a smaller sensing area and achieve a
Jan 24, 2026
Abstract A distributed fiber-optic sensor for simultaneous relative humidity (RH) and temperature measurement is proposed and experimentally demonstrated by means of optical
Dec 14, 2025
Several key principles are classified and introduced, as well as the sensing performance of different types of sensors are compared and discussed. By analyzing the main problems of
Aug 28, 2025
An optical fiber Fabry–Perot interferometer (FPI) is constructed for relative humidity measurement by fusion splicing a short hollow core fiber (HCF)
May 15, 2026
In this paper, a demonstration of a fiber optic sensor for the simultaneous measurement of relative humidity and temperature based on integrated FPIs was proposed.
May 03, 2026
A relative humidity (RH) sensor based on a V4C3 MXene-coated etched single-mode optical fiber is experimentally demonstrated. We fabricated and tested RH sensors with four different
Jun 13, 2026
Along with the mentioned optical fiber structures, their fabrication process, equipment required for humidity sensing and the coating technique used are explained in this review.
Oct 19, 2025
The proposed sensor has the advantages of the simple structure, easy fabrication, good stability, and high performance, which can be applied to
May 11, 2026
Researchers used physical and chemical changes on the external surface of optical fiber to improve humidity sensing. Especially, coating of two
Oct 07, 2025
A highly sensitive humidity sensor based on open cavity fiber Fabry-Perot interferometer (FPI) with double-sided contact film is proposed. The sensor is fabricated by inserting a section of single-mode
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