Results 11 to 20 of about 20,217 (260)
IEEE Access, 2021 The traditional fiber Bragg grating (FBG) acceleration has a low operating frequency, which limits its application in transmission line galloping monitoring.
Hongbo Zou, Mi Lu
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A Novel Fabry-Pérot Optical Sensor for Guided Wave Signal Acquisition
Sensors, 2020 In this paper, a novel hybrid damage detection system is proposed, which utilizes piezoelectric actuators for guided wave excitation and a new fibre optic (FO) sensor based on Fabry-Perot (FP) and Fiber Bragg Grating (FBG).
Cheng Xu, Zahra Sharif Khodaei
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Cailiao gongcheng, 2021 The FBG sensors, embedded in triangle region of composite T-stiffened panels, were used to monitor the strain change during curing process and quasi-static compression real-timely.
ZHOU Yu-jing +4 more
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Measurement: Sensors, 2021 We compared and verified the signal waveforms and specifications measured by two sensors that can detect heartbeat information from the fingertips. A Photoplethysmography (PPG) sensor, which is a photo-electric volume pulse wave sensor, and an Fiber ...
Shouhei Koyama +4 more
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Code Division Multiplexing Applied to FBG Sensing Networks: FBG Sensors Designed as Discrete Prolate Spheroidal Sequences (DPSS-FBG Sensors) [PDF]
Journal of Lightwave Technology, 2017 [EN] We propose and demonstrate a sensing system with fiber Bragg grating sensors designed as discrete prolate spheroidal sequences (DPSS). In this way, we can encode all of the sensing devices in the network making sure that each sensor is completely distinguishable from each other even under overlapping conditions.
Triana-Infante, Cristian Andres +2 more
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Sensitivity Enhancement of FBG-Based Strain Sensor [PDF]
Sensors, 2018 A novel fiber Bragg grating (FBG)-based strain sensor with a high-sensitivity is presented in this paper. The proposed FBG-based strain sensor enhances sensitivity by pasting the FBG on a substrate with a lever structure. This typical mechanical configuration mechanically amplifies the strain of the FBG to enhance overall sensitivity.
Ruiya Li +5 more
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Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities [PDF]
, 2012 We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected ...
Niewczas, Pawel +2 more
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Photonic Sensors, 2022 A new and easy-to-fabricate strain sensor has been developed, based on fiber Bragg grating (FBG) technology embedded into a thermoplastic polyurethane filament using a 3-dimensional (3D) printer. Taking advantage of the flexibility and elastic properties
Harith Ahmad +8 more
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Fiber Bragg Grating Sensor Interrogation Using Tunable Erbium-Doped Fiber Ring Laser Source
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021 Fiber Bragg gratings (FBG) are ideal sensors for temperature, strain or vibration sensing applications with their advantages over conventional electronics sensor systems.
Şerif Ali Sadık +2 more
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Multiplexing Techniques for FBG Sensors [PDF]
, 2011 One of the main goals of fiber optic sensor technology is to multiplex together a high number of sensors in the same fiber in order to share expensive terminal equipment and reduce the size and weight of the optical cable. Both passive and active multiplexing techniques are used for telemetry in sensor networks.
null Manuel Lopez-Amo +1 more
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