Results 21 to 30 of about 1,912,482 (249)

Fiber-optic chemical sensing with Langmuir-Blodgett overlay waveguides [PDF]

, 1999
Fiber-optic chemical sensing has been demonstrated with a side-polished single- mode optical fiber, evanescently coupled to chemically sensitive Langmuir- Blodgett (LB) overlay waveguides.
Tatam, Ralph P., Flannery, D., James, Stephen W., Ashwell, Geoffrey J.   +3 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, Vázquez García, María Carmen, Montalvo García, Julio, Lallana, Pedro C., Vázquez, Carmen, Montalvo, Julio   +5 more
core   +1 more source

Intraluminal Monitoring of Micro Vessels. A Surgical Feasibility Study

Frontiers 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, Holger Sudhoff, Onno Frerichs, Ingo Todt   +3 more
doaj   +1 more source

Research on the estimation method of the point-of-interest (POI) displacement for ultra-precision flexible motion system based on functional optical fiber sensor

Mechanics & Industry, 2021
This paper proposes a POI displacement estimation method based on the functional optical fiber sensor and the phase modulation principle to improve the POI displacement estimation accuracy. First, the relation between the object deformation and the optic
Li Yujie, Zhang Ming, Zhu Yu
doaj   +1 more source

Fiber Loop Ringdown — a Time-Domain Sensing Technique for Multi-Function Fiber Optic Sensor Platforms: Current Status and Design Perspectives

Sensors, 2009
Fiber loop ringdown (FLRD) utilizes an inexpensive telecommunications light source, a photodiode, and a section of single-mode fiber to form a uniform fiber optic sensor platform for sensing various quantities, such as pressure, temperature, strain ...
Chuji Wang
doaj   +1 more source

Development of the Noncontact Temperature Sensor Using the Infrared Optical Fiber Coated with Antifog Solution

Science and Technology of Nuclear Installations, 2015
This study developed a noncontact fiber-optic temperature sensor that can be installed in a spent nuclear fuel pool. This fiber-optic temperature sensor was fabricated using an infrared optical fiber to transmit the infrared light emitted from water at a
Rinah Kim, Chan Hee Park, Arim Lee, Joo Hyun Moon   +3 more
doaj   +1 more source

Guided Wave and Damage Detection in Composite Laminates Using Different Fiber Optic Sensors

Sensors, 2009
Guided wave detection using different fiber optic sensors and their applications in damage detection for composite laminates were systematically investigated and compared in this paper.
Fucai Li, Hideaki Murayama, Kazuro Kageyama, Takehiro Shirai   +3 more
doaj   +1 more source

Dynamics Simulation of Remotely Operated Vehicle-Fiber Optic Micro Cable System [PDF]

, 2008
Li Q, Xu H, Zhang Q, Wang X, Li ZG. Dynamics Simulation of Remotely Operated Vehicle-Fiber Optic Micro Cable System.
Li, ZhiGang, Li ZG(李智刚), Xu, Hongli, Zhang QF(张奇峰), Qiang Li, Li, Qiang ; https://orcid.org/, Wang, Xiaohui, Xiaohui Wang, Zhigang Li, Wang XH(王晓辉), Hongli Xu, Qifeng Zhang, Zhang, Qifeng, Li Q(李强), Xu HL(徐红丽)   +14 more
core   +1 more source

Highly Sensitive Temperature Sensors Based on Fiber-Optic PWM and Capacitance Variation Using Thermochromic Sensing Membrane

Sensors, 2016
In this paper, we propose a temperature/thermal sensor that contains a Rhodamine-B sensing membrane. We applied two different sensing methods, namely, fiber-optic pulse width modulation (PWM) and an interdigitated capacitor (IDC)-based temperature sensor
Md. Rajibur Rahaman Khan, Shin-Won Kang
doaj   +1 more source

A fibre optic sensor for the measurement of surface roughness and displacement using artificial neural networks [PDF]

, 1997
This paper presents a fiber optic sensor system, artificial neural networks (fast back-propagation) are employed for the data processing. The use of the neural networks makes it possible for the sensor to be used both for surface roughness and ...
Butler, C, Lu, Y, Zhang, K, Yang, QP
core   +1 more source