(PDF) Optical pressure/acoustic sensor with precise
This paper presents a novel Fabry-Perot (FP) optical fiber pressure/acoustic sensor. It consists of two V-shaped grooves having different
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Open Cavity Pressure Fiber
A Large-Range and High-Sensitivity Fiber-Optic
This paper proposes a fiber-optic Fabry–Perot pressure sensor based on a membrane-hole-base structure. The sensitive core was fabricated by laser
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Fiber-Optic Pressure Sensors: Recent Advances in Sensing
This paper conducts a systematic analysis of the sensing mechanisms in fiber-optic pressure sensors, with a particular focus on the performance optimization effects of fiber structures
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Fiber Optic Fabry-Perot Interferometer Pressure
To improve long-term reliability under these conditions, we developed a fiber optic Fabry–Perot (FP) cavity pressure sensor that employs an Inconel 718
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A Large-Range and High-Sensitivity Fiber-Optic
In this paper, a fiber-optic Fabry–Perot high-temperature pressure sensor for extreme high-temperature and high-pressure environments is proposed and
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Temperature insensitive fully open cavity fiber inline Fabry–Perot
The open-cavity fiber-optic Fabry–Perot interferometer (FPI), which allows the analysis of gases or liquids entering the cavity to interact with the light field within, has been extensively studied
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Extrinsic Optical Fiber Pressure Sensor Based on F-P
Furthermore, to verify the accuracy and lightning protection performance of the extrinsic fiber pressure sensor based on F-P cavity in actual
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Open-cavity Fabry-Perot interferometer pressure and temperature fiber
We propose and demonstrate a cascaded-cavities Fabry-Perot interferometer (FPI) for simultaneous measurement of pressure and temperature based on photonic crystal fiber. The sensor is composed
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A High-Sensitivity and High-Temperature-Resistant Gas Pressure Sensor
The pressure sensors capable of high sensitivity and wide measuring range at high temperature are urgently needed in many industrial fields. We propose a novel fiber-optic Fabry-Pérot interferometer
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Fiber Bragg grating
A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and
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A High-Sensitivity and High-Temperature-Resistant Gas Pressure
We propose a novel fiber-optic Fabry-Pérot interferometer (FPI) probe gas pressure sensor based on hollow-core fibers (HCFs) offset fusion splicing. Two HCFs with different inner diameters construct an
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Dual transverse fiber tip Fabry-Perot cavities for simultaneous
Cascaded-cavity FPIs typically consist of an open gas-cavity and a silica-cavity, which exhibit different pressure and temperature sensitivities, making it possible to simultaneously measure
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Fiber optic pressure sensor based on a single-mode fiber F–P cavity
In this paper, we propose and experimentally demonstrate a pressure sensor based on birefringent single-mode fiber F–P cavity using optical heterodyne. The proof of concept device
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Design of fiber optic F-P cavity pressure sensor based on bellows
To meet the need of the measurement in high temperature and high pressure in oil and gas well, an optical fiber extrinsic Fabry Perot (F-P) cavity pressure sensor based on bellows is
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Double-Cavity Fabry–Perot Interferometer Sensor
A double-cavity Fabry-Perot (F-P) interferometer sensor based on a polymer-filled hollow core fiber (HCF) has been proposed and experimentally
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A High-Sensitivity Pressure Sensor Based on Optical Fabry-Pérot
We report a fiber-optic sensor based on a silicon Fabry-Pérot cavity, fabricated by attaching a silicon pillar on the tip of a single-mode fiber, for high-resolution and high-speed
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FP cavity and FBG cascaded optical fiber temperature and pressure sensor
A carbon-coated and bellow-packaged optical fiber sensor for high pressure and high temperature monitoring in downhole applications is developed and successfully field-applied in an oil
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Multimode fiber tip Fabry-Perot cavity for highly sensitive pressure
Abstract We demonstrate an optical Fabry-Perot interferometer fiber tip sensor based on an etched end of multimode fiber filled with ultraviolet adhesive.
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(PDF) An Open-Cavity Gas Pressure Sensor Based on
An open-cavity optical fiber gas pressure sensor based on the Vernier effect is proposed. The sensor consists of two Fabry-Perot interferometers (FPIs) connected in parallel.
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Optical pressure/acoustic sensor with precise Fabry-Perot cavity
A novel FP type optical fiber pressure/acoustic sensor was designed, fabricated and tested. The FP cavity is defined by two V-grooves which are fabricated by lithography and silicon anisotropic
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Compressible fiber optic micro-Fabry-Pérot cavity with ultra-high
In conclusion, we have demonstrated a compressible fiber optic micro Fabry-Pérot cavity for pressure sensing with extremely high sensitivity. By immersing the silica tube spliced at the SMF fiber-tip into
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Highly sensitive temperature and pressure fiber optic sensor
We have developed a highly sensitive fiber optic sensor that can measure temperature and pressure. The sensor comprises two Fabry–Perot interferometers (FPIs), FPI 1 and FPI 2,
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Fiber Optic Temperature Sensor System Using Air-Filled
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
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A Large-Range and High-Sensitivity Fiber-Optic
2. Sensor''s Structure and Principle Figure 1 a is a schematic diagram of the structure of the fiber-optic Fabry–Perot pressure sensor, which is mainly composed of an
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Ultrasensitive fiber-based gas pressure sensor based on harmonic
Abstract We propose and experimentally demonstrate a highly sensitive gas pressure sensor in parallel configuration based on harmonic Vernier effect. The sensor consists of two
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An Open-Cavity Gas Pressure Sensor Based on Vernier Effect of
Abstract: An open-cavity optical fiber gas pressure sensor based on the Vernier effect is proposed. The sensor consists of two Fabry-Perot interferometers (FPIs) connected in parallel.
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