In this paper, we propose a high-sensitivity fiber-optic temperature sensor based on the UV glue-filled Fabry-Pérot (FP) cavity in the HCF. The sensor is fabricated by fusion splicing a SMF
As a result, a liquid crystal optical fiber sensor with the structure of FBG-FP based on the Vernier effect can be utilized for temperature measurements. This work offers a reliable and accurate
We present an approach for high temperature measurement using a pair of fiber-optic Fabry–Pérot (FP) cavities filled with gas of identical but variable pressure. One of the FPs (reference
A high-sensitive fiber-optic Fabry–Perot sensor with parallel polymer-air cavities based on Vernier effect for simultaneous measurement of pressure and temperature.
Fiber-optic sensing technology based on Fabry-Perot (FP) interferometry has attracted significant attention due to its advantages of small
A compact fiber optic temperature sensor based on the Fabry–Pérot interferometer (FPI) combined with FBG is analyzed and demonstrated experimentally i
Optic fiber measurement technology has been widely used to obtain multiparameters in severe environments, such as high-temperature and high-pressure steam pipelines. This study develops a
A multi-core optical fiber is attached to the silicon pillar to facilitate signal propagation. One FP interferometer is established within a fully enclosed air cavity, acting as a pressure sensor.
The purpose of this paper is to design a high-sensitivity temperature sensor based on the vernier effect (VE) of dual-parallel Fabry-Perot interferometers (FPIs).
This sensor uses dual parallel fiber Fabry-Pérot (FP) cavities, formed inside a cup-shaped silicon pillar created using deep reactive ion etching (DRIE) technology. A multi-core optical fiber is
We report a high-resolution fiber optic temperature sensor system based on an air-filled Fabry–Pérot (FP) cavity, whose spectral fringes shift due to a precise pressure variation in the cavity.
Optical Fiber FP Sensor for Simultaneous Measurement of Refractive Index and Temperature Based on the Empirical Mode Decomposition Algorithm
We report a high-resolution fiber optic temperature sensor system based on an air-filled Fabry–Pérot (FP) cavity, whose spectral fringes shift due to
When installation space is extremely limited or the objects to be detected are tiny, fiber-optic sensors are the ideal solution. If it is necessary for even higher
Here we report a high-temperature sensor prototype based on a sapphire Fabry-Perot (FP) cavity that employs materials readily available and that is capable to operate at temperatures above 1000°C for
The sensitivity of the sensor is 14.87 kHz/°C in the range of 25–125 °C. A novel, simple, and low-cost optical fiber temperature detection system is proposed and demonstrated in this paper,
Abstract: A temperature sensor based on fiber Fabry Perot interferometer (FPI) is proposed and demonstrated, which is composed of hollow core fiber (HCF) and cascaded multimode fiber (MMF).
A cavity-length-matched interference phase demodulation scheme has been proposed for high-fineness Fabry–Pérot (FP) sensors. This method matches the optical path of a selected high
To address the challenge of balancing sensitivity and measurement range in optical fiber temperature sensors, a high-sensitivity optical fiber temperature sensor based on an extrinsic
A high-sensitivity fiber optic temperature sensor based on the enhanced harmonic Vernier effect (HVE) is proposed, which consists of two Fabry–Perot interferometers (FPI) that are
Fiber optic temperature sensors for small-scale heat sources have an urgent need in many industrial fields, for example, the temperature field of the laser heat source, mini LED, microchip, and so on. To
The fiber FP cavities are uncomplicated and compact, and their use as sensing elements helps avoid temperature inhomogeneity. A fiber temperature sensor consisting of two cascaded
This paper presents a fiber optic sensor based on two parallel Fabry-Perot interferometers (FPIs) and the Vernier effect, achieving temperature and pressure sensing.
The temperature sensitivity of the sensor was 706.9 pm/°C, which is 76 times higher than that of single one fiber-optic cavity FP temperature sensor. The sensor has a wide range of potential
A novel, simple, and low-cost optical fiber temperature detection system is proposed and demonstrated in this paper, which uses the strong feedback of the Fabry-Perot Laser Diode (FP-LD)
2. Operating Principle The sensing principle of the FP/FBG sensor for simultaneous measurement of strain and temperature is based on the sensing properties of the FBG and FP cavity, respectively.
At any given time on board the space station, a large array of different experiments are underway within a wide range of disciplines. Here, you can search the
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