Results 1 to 10 of about 11,797 (113)

Research on the Dual Modulation of All-Fiber Optic Current Sensor. [PDF]

open access: yesSensors (Basel), 2022
Acousto-optic modulator (AOM) and electro-optical modulator (EOM) are applied to realize the all-fiber current sensor with a pulsed light source. The pulsed light is realized by amplitude modulation with AOM.
Wu J, Zhang X, Chen L.
europepmc   +2 more sources

An Extrinsic Fabry Perot Fiber Optic Current Transformer Based on PZT Coupling. [PDF]

open access: yesMicromachines (Basel)
To address the structural complexity, limited detection sensitivity, and environmental susceptibility of the stable operating point in conventional fiber-optic current transformers for low-current detection, this study proposes a fiber-optic current ...
Bai S, Li Z, Li Y, Chen Q.
europepmc   +2 more sources

Assessment of the Structural Vibration Effect on Plasma Current Measurement Using a Fiber Optic Current Sensor in ITER. [PDF]

open access: yesSensors (Basel), 2023
In this paper, we assess the effect of cryostat bridge vibrations on the plasma current measurement accuracy when using a fiber optic current sensor (FOCS) in ITER.
Kim SM   +5 more
europepmc   +2 more sources

A Novel Fiber-Optic Ice Sensor to Identify Ice Types Based on Total Reflection

open access: yesSensors, 2023
To address the issues of not accurately identifying ice types and thickness in current fiber-optic ice sensors, in this paper, we design a novel fiber-optic ice sensor based on the reflected light intensity modulation method and total reflection ...
Xiaowei Guo, Yizhou He, Chunhua Xiao
exaly   +3 more sources

A UV-Cured Polymer/Aluminum-Microparticle Photothermal Encapsulated Liquid-Filled Fiber Mach-Zehnder Interferometric Hot-Wire Anemometer. [PDF]

open access: yesSensors (Basel)
A high-sensitivity fiber-optic hot-wire anemometer based on a liquid-filled leaky-guided fiber Mach–Zehnder interferometer (LGFMZI) with UV-cured polymer/aluminum-microparticle photothermal encapsulation is proposed and experimentally demonstrated.
Lee CL, Hsieh WH, Chen WJ, Han P.
europepmc   +2 more sources

Research on measurement technology of optical fiber angle sensor based on MEA-BP. [PDF]

open access: yesSci Rep
High-voltage disconnectors operate under strong electromagnetic radiation for long periods, making it prone to incomplete opening and closing. Current electronic sensors used to detect their status are susceptible to electromagnetic interference, leading
Lisha W   +6 more
europepmc   +2 more sources

Research on All-Fiber Dual-Modulation Optic Current Sensor Based on Real-Time Temperature Compensation

open access: yesIEEE Photonics Journal, 2022
We present a method to simultaneously measure the temperature and electric current, which can be applied for the all-fiber optic current sensor (AFOCS) temperature compensation.
Jianhua Wu   +4 more
doaj   +1 more source

Intraluminal Monitoring of Micro Vessels. A Surgical Feasibility Study

open access: yesFrontiers in Surgery, 2021
Objective: Monitoring of vessel perfusion is of high clinical importance in vascular anastomosis of free flaps. Current sensor systems are based on different principles and show limitations in validity and accuracy.
Leonard Walle   +3 more
doaj   +1 more source

Fiber fusion splicing error analysis of all-fiber optic current sensor with different demodulation schemes

open access: yesEnergy Reports, 2022
Measurement accuracy is essential for the all-fiber optic current sensor. Angle errors of axis alignment in the fusion processing affect the measurement accuracy with different modulation and demodulation methods.
Jianhua Wu   +3 more
doaj   +1 more source

MINIMIZATION OF NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR ARRAY BY ADJUSTMENT OF OPERATIONAL AMPLIFIER CASCADE PARAMETERS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper presents results of the experimental study on the dependence of the noise floor level of a fiber-optic interferometric sensor array on the gain factor of operational amplifiers located on the signal processing board and ...
Matvey V. Bykadorov   +3 more
doaj   +1 more source

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