Results 121 to 130 of about 6,027 (232)

Effects of Coating and Diametric Load on Fiber Bragg Gratings as Cryogenic Temperature Sensors [PDF]

, 2008
Cryogenic temperature sensing was demonstrated using pressurized fiber Bragg gratings (PFBGs) with polymer coating of various thicknesses. The PFBG was obtained by applying a small diametric load to a regular fiber Bragg grating (FBG).
DeHaven, Stanton L., Pater, Ruth H., Wu, meng-Chou   +2 more
core   +1 more source

Fiber Optic Thermal Health Monitoring of Composites [PDF]

, 2010
A recently developed technique is presented for thermographic detection of flaws in composite materials by performing temperature measurements with fiber optic Bragg gratings.
Moore, Jason P., Winfree, William P., Wu, Meng-Chou   +2 more
core   +1 more source

Design of a Fiber Temperature and Strain Sensor Model Using a Fiber Bragg Grating to Monitor Road Surface Conditions

Inventions
In this paper, the types and principles of operation of fiber sensors based on fiber Bragg gratings (FBGs) are investigated. The influence of strain and temperature on the characteristics of FBGs is considered, and a method for the simultaneous ...
Gulzhan Kashaganova, Ainur Kozbakova, Timur Kartbayev, Kulzhan Togzhanova, Zhuldyz Alimseitova, Gani Sergazin   +5 more
doaj   +1 more source

Cross-fiber Bragg grating transducer [PDF]

, 2000
A transducer has been invented that uses specially-oriented gratings in waveguide a manner that allows the simultaneous measurement of physical phenomena (such as shear force, strain and temperature) in a single sensing element.
Albin, Sacharia, Lavarias, Arnel, Zheng, Jianli   +2 more
core   +1 more source

Internal deformation monitoring for centrifuge slope model with embedded FBG arrays [PDF]

, 2016
Bezuijen, Adam, Wang, Hongxian, Xu, Qiang, Zhang, Dan, Zheng, Guang   +4 more
core   +2 more sources

Fiber Optic Thermal Health Monitoring of Aerospace Structures and Materials [PDF]

, 2009
A new technique is presented for thermographic detection of flaws in materials and structures by performing temperature measurements with fiber Bragg gratings. Individual optical fibers with multiple Bragg gratings employed as surface temperature sensors
Allison, Sidney G., Winfree, William P., Wu, Meng-Chou   +2 more
core   +1 more source

Temperature and vector bending sensing with a supermode fiber Bragg grating

JPhys Photonics
Due to their multiple advantages, single-mode fiber Bragg gratings (FBGs) are widely used in a myriad of practical sensing applications. However, their concurrent sensitivity to strain and temperature makes a reference sensor necessary in several ...
J Villatoro, M Alonso-Murias, D Maldonado-Hurtado, A Zornoza, F Lindner, J Bierlich, S Sales, K Wondraczek   +7 more
doaj   +1 more source

Binary hypothesis-based impact damage detection for composite material system embedded with fiber Bragg gratings [PDF]

, 2017
Gregory, William, Key, Chris, Kim, Hyonny, Todd, Michael, Whisler, Daniel A, Whitaker, Anthony, Yeager, Mike   +6 more
core   +1 more source

Accurate Determination of the Temperature Sensitivity of UV-Induced Fiber Bragg Gratings. [PDF]

Sensors (Basel)
Cosme M, Pota M, Preizal J, Caldas P, Oliveira R, Nogueira R, Araújo FM, Cruz JL, Rego GM.   +8 more
europepmc   +1 more source

Twisted Fiber Bragg Gratings as a Polarization-Insensitive Element. [PDF]

Sensors (Basel)
Butov OV, Lopunov AI, Ulyanov I, Bazakutsa AP, Gomzin AB, Dolzhenko EI, Pnev AB.   +6 more
europepmc   +1 more source