A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

10.3791/59026 ◽  
2019 ◽  
Author(s):  
Guigen Liu ◽  
Qiwen Sheng ◽  
Weilin Hou ◽  
Matthew L. Reinke ◽  
Ming Han
Keyword(s):  
High Resolution ◽  
Fiber Optic ◽  
Fast Response ◽  
Sensing Platform ◽  
Fiber Optic Sensing

Embedded Fiber-optic Sensing for Low-cost, High Resolution Monitoring in Bridges and Critical Structures

2019 ◽  
Author(s):  
AJAY RAGHAVAN ◽  
KYLE ARAKAKI ◽  
HONG YU ◽  
PETER KIESEL ◽  
TUAN NGUYEN ◽  
...  
Keyword(s):  
High Resolution ◽  
Fiber Optic ◽  
Low Cost ◽  
Fiber Optic Sensing

Lab-on-a-fiber: building a fiber optic sensing platform for low-cost and high-performance trace vapor TNT detection

2010 ◽  
Author(s):  
Jianjun Ma ◽  
Aldona Kos ◽  
Wojtek J. Bock ◽  
Xianzhe Li ◽  
Huy Nguyen ◽  
...  
Keyword(s):  
High Performance ◽  
Fiber Optic ◽  
Low Cost ◽  
Sensing Platform ◽  
Fiber Optic Sensing ◽  
Tnt Detection

High-resolution extended distance distributed fiber-optic sensing using rayleigh backscatter

2007 ◽  
Author(s):  
Stephen T. Kreger ◽  
Dawn K. Gifford ◽  
Mark E. Froggatt ◽  
Alex K. Sang ◽  
Roger G. Duncan ◽  
...  
Keyword(s):  
High Resolution ◽  
Fiber Optic ◽  
Fiber Optic Sensing

scholarly journals Evaluation of Horizontal Stresses in Soil during Direct Simple Shear by High-Resolution Distributed Fiber Optic Sensing

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3684 ◽  
Author(s):  
Assaf Klar ◽  
Michael Roed ◽  
Irene Rocchi ◽  
Ieva Paegle
Keyword(s):  
High Resolution ◽  
Fiber Optics ◽  
Simple Shear ◽  
Fiber Optic ◽  
Test Procedure ◽  
Contact Stresses ◽  
Fourier Series Expansion ◽  
Linear Set ◽  
Direct Simple Shear ◽  
Fiber Optic Sensing

This paper presents an approach for evaluating the horizontal stresses that develop in geotechnical Direct Simple Shear (DSS) tests through the use of high-resolution distributed fiber optic sensing. For this aim, fiber optics were embedded in 3D printed rings used for confining the soil in the test procedure. An analytical approach linking the measured spatially-distributed strain profile and the internal soil-ring contact stresses is developed in the paper. The method is based on representation of the contact stresses by a Fourier series expansion, and determining the coefficients of the series by minimizing the difference between the measured strain and the analytical strain within the linear elastic ring. The minimization problem results in a linear set of equations that can easily be solved for a given measurement. The approach is demonstrated on a set of drained DSS tests on clean sand specimens. Stress paths using the evaluated horizontal stresses are plotted together with Mohr circles at failure. These illustrate how, in these specific tests, the horizontal stress increases and principal stress direction rotates, until failure occurs along horizontal planes.

High-sensitivity and fast-response fiber-tip Fabry–Pérot hydrogen sensor with suspended palladium-decorated graphene

Nanoscale ◽  
2019 ◽  
Vol 11 (34) ◽  
pp. 15821-15827 ◽  
Author(s):  
Jun Ma ◽  
Yanglin Zhou ◽  
Xue Bai ◽  
Kai Chen ◽  
Bai-Ou Guan
Keyword(s):  
Fiber Optic ◽  
High Sensitivity ◽  
Hydrogen Sensor ◽  
Fast Response ◽  
Hydrogen Detection ◽  
Sensing Technology ◽  
Fabry Perot ◽  
Fiber Optic Sensing

Integration of suspended Pd-decorated graphene and fiber-optic sensing technology enables sensitive, fast-response, and intrinsically safe hydrogen detection.

High-resolution fast response fiber-optic laser calorimeter using a twin interferometric temperature sensor

2001 ◽  
Vol 198 (1-3) ◽  
pp. 29-35 ◽  
Author(s):  
A.V Khomenko ◽  
A Garcı́a-Weidner ◽  
J Tapia-Mercado ◽  
M.A Garcı́a-Zárate
Keyword(s):  
High Resolution ◽  
Temperature Sensor ◽  
Fiber Optic ◽  
Fast Response
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