Results 11 to 20 of about 207,458 (283)
Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors [PDF]
This review summarizes principles and current stage of development of fiber-optic chemical sensors (FOCS) and biosensors (FOBS). Fiber optic sensor (FOS) systems use the ability of optical fibers (OF) to guide the light in the spectral range from ultraviolet (UV) (180 nm) up to middle infrared (IR) (10 μm) and modulation of guided light by the ...
Marie Pospíšilová +2 more
openaire +4 more sources
High-Speed Mach-Zehnder-OTDR Distributed Optical Fiber Vibration Sensor Using Medium-Coherence Laser
This article presents a high-speed distributed vibration sensing based on Mach-Zehnder-OTDR (optical time-domain reflectometry). Ultra-weak fiber Bragg gratings (UWFBG), whose backward light intensity is 2-4 orders of magnitude higher than that of ...
Yuheng Tong +4 more
doaj +1 more source
An enhanced distributed optical fiber sensor based on broadband ultra-weak fiber Bragg grating array (UWFBG) for dynamic strain measurement with large temperature tolerance range was proposed and experimentally demonstrated.
Chengli Li +5 more
doaj +1 more source
Versatile Vibration Sensing Using a Tapered Photonic Crystal Fiber With a Featured Core
On the basis of intensity modulation, a vibration sensor using a tapered photonic crystal fiber (PCF) is demonstrated. The fiber is a solid-core PCF with a central air hole embedded in the core region.
Haihu Yu +4 more
doaj +1 more source
A High-Sensitivity Dual-Axis Accelerometer with Two FP Cavities Assembled on Single Optical Fiber
In this paper, a dual-axis Fabry–Pérot (FP) accelerometer assembled on single optical fiber is proposed. The sensor is equipped with a special beam-splitting prism to split the light into two perpendicular directions (the X- and Y-axes); the prism ...
Bolun Zheng +5 more
doaj +1 more source
Opto-Mechatronics System for Train-Track Micro Deformation Sensing
In this paper, we proposed and experimentally demonstrated an opto-mechatronics system to detect the micro-deformation of tracks caused by running trains.
Weibing Gan +5 more
doaj +1 more source
Drawing Tower In-Line Fabrication and the Spectrum Analysis of Sampled Fiber Grating
Sampled fiber grating is a special superstructure fiber Bragg grating with a wide range of applications in many fields. In this work, based on drawing tower in-line fabrication system, a new preparation method of the sampled fiber grating is proposed and
Yu Zheng +5 more
doaj +1 more source
It is significant for people with diabetes to know their body’s real-time glucose level, which can guide the diagnosis and treatment. Therefore, it is necessary to research continuous glucose monitoring (CGM) as it gives us real-time information about ...
Yangjie Li +5 more
doaj +1 more source
Research on multi-component gas optical detection system based on conjugated interferometer
An optical multi-component gas detection system based on the conjugated interferometer (CI) is proposed and experimentally demonstrated. It can realize the concentration detection of mixture gas in the environment.
Xin Gui +4 more
doaj +1 more source
Design and Measurement of a Dual FBG High-Precision Shape Sensor for Wing Shape Reconstruction
FBG shape sensors based on soft substrates are currently one of the research focuses of wing shape reconstruction, where soft substrates and torque are two important factors affecting the performance of shape sensors, but the related analysis is not ...
Huifeng Wu +5 more
doaj +1 more source

