Results 31 to 40 of about 3,866,750 (249)
Optics Express, 2022 Jerk is directly related to a physical mutation process of structural damage and human comfort. A fiber optic jerk sensor (FOJS) based on a fiber optic differentiating Mach–Zehnder interferometer is proposed. It can directly measure jerk by demodulating the phase of interference light, which avoids the high-frequency noise interference caused by ...
Huicong Li +3 more
openaire +2 more sources
Polymer Waveguide Sensor Based on Evanescent Bragg Grating for Lab-on-a-Chip Applications
SensorsIn this work, an evanescent Bragg grating sensor inscribed in a few-mode planar polymer waveguide was integrated into microchannel structures and characterized by various chemical applications.
Zhenyu Zhang +4 more
doaj +1 more source
International Journal of Optics, 2020 An all-solid dispersion-compensating photonic crystal fiber based on mode coupling mechanism in dual-concentric core has been proposed. The mode coupling characteristics, dispersion, confinement loss of the fiber, and the influence on dispersion of some ...
Zhaolun Liu, Chunlan Zhang, Yuwei Qu
doaj +1 more source
Optical Fiber Probe Microcantilever Sensor Based on Fabry–Perot Interferometer
Sensors, 2022 Optical fiber Fabry–Perot sensors have long been the focus of researchers in sensing applications because of their unique advantages, including highly effective, simple light path, low cost, compact size, and easy fabrication.
Yongzhang Chen +7 more
doaj +1 more source
Applications of fiber-optic sensors [PDF]
Proceedings., 39th Electronic Components Conference, 1990 The authors discuss the basic principles and applications of optical-fiber sensor technology, outlining the various sensing mechanisms which can be utilized to influence the propagation of light in an optical fiber and the various sensor types-intensity, phase-modulated (interferometric), intrinsic, and extrinsic.
Kersey, A. D., Dandridge, Anthony
openaire +1 more source
SensorsThis work proposes a highly sensitive sandwich heterostructure multimode optical fiber microbend sensor for heart rate (HR), respiratory rate (RR), and ballistocardiography (BCG) monitoring, which is fabricated by combining a sandwich heterostructure ...
Fumin Zhou +7 more
doaj +1 more source
Sensors, 2019 Human motion classification based on micro-Doppler effect has been widely used in various fields. However, the motion classification performance would be greatly degraded if the wireless environment has non-target micro-motion interference. In this case,
Xiaolin Ma +4 more
doaj +1 more source
Assessment of a Dual-Wavelength Compensation Technique for Displacement Sensors Using Plastic Optical Fibers [PDF]
, 2012 The paper analyzes the performance of a dual-wavelength technique devised to compensate power fluctuations in intensity-modulated plastic optical fiber sensors, which were specifically conceived for the measurement of displacements in industrial and ...
Massimo Olivero +7 more
core +1 more source
Radio-frequency ring resonators for self-referencing fiber-optic intensity sensors [PDF]
, 2005 A theoretical and experimental study of radiofrequency ring resonators (RR) for referencing and improving the sensitivity of fiber-optic intensity sensors (FOS) is reported.
Contreras Lallana, Pedro +5 more
core +1 more source
Self‐Powered Stretchable Mechanoluminescent Optical Fiber Strain Sensor
Advanced Intelligent Systems, 2021 Strain sensors that can work sustainably and continuously without any external power supply are highly desirable for future wearable and implantable devices.
Haohua Liang +10 more
doaj +1 more source