Results 181 to 190 of about 35,600 (283)

Static and Dynamic Multiparameter Assessment of Structural Elements Using Chirped Fiber Bragg Gratings. [PDF]

Sensors (Basel), 2023
Macedo L, Souza EA, Frizera A, Pontes MJ, Marques C, Leal-Junior A.   +5 more
europepmc   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +1 more source

Femtosecond Laser Modification of Silica Optical Waveguides for Potential Bragg Gratings Sensing. [PDF]

Materials (Basel), 2022
Chen J, Feng JJ, Liu HP, Chen WB, Guo JH, Liao Y, Shen J, Li XF, Huang HL, Zhang DW.   +9 more
europepmc   +1 more source

Switchable Bragg gratings

, 2003
The subject of this ph.d. thesis was the development of an electrically switchable Bragg grating made in an optical waveguide using thermal poling to be applied within optical telecommunication systems. The planar waveguides used in this thesis were fabricated at the Micro- and Nanotechnology Research Center (MIC) at the Technical University of Denmark.
openaire   +1 more source

Liquid jet capabilities for ultrafast chemistry at the SwissFEL Alvra instrument

Journal of Synchrotron Radiation, EarlyView.
The technical aspects of the Alvra endstation are outlined and its scientific capabilities are demonstrated with commissioning results obtained during the early years of SwissFEL's operation.The Alvra experimental station at the Swiss X‐ray free‐electron laser, SwissFEL, investigates ultrafast dynamics in chemical and biological systems using X‐ray ...
Claudio Cirelli, Emma Victoria Beale, Florian Dworkowski, Victoria Kabanova, Sven Augustin, Gregor Knopp, Chris Milne, Christoph Bostedt, Philip J. M. Johnson, Camila Bacellar   +9 more
wiley   +1 more source

Optomechanical sensor network with fiber Bragg gratings. [PDF]

Nat Commun
Yang S, Zhang Q, Yang L, Liu H, Wang Q, Zhang P, Shen H, Li Y.   +7 more
europepmc   +1 more source

Strain Modal Testing with Fiber Bragg Gratings for Automotive Applications. [PDF]

Sensors (Basel), 2022
Falcetelli F, Martini A, Di Sante R, Troncossi M.   +3 more
europepmc   +1 more source

The Fiery Eyes of a Maenad: Origin Determination of Faceted Garnet Eye Inlays in a Roman Bronze Bust From Southern Tyrol

Archaeometry, EarlyView.
ABSTRACT In 1837, the Tyrolean State Museum Ferdinandeum in Innsbruck, Austria, purchased a Roman bronze statue of a maenad from the 2nd century ce with red garnets as facetted eye inlays found near Brixen, Southern Tyrol. These garnets were investigated using optical microscopy, a portable hand‐held and a stationary micro‐X‐ray fluorescence device, as
H. Albert Gilg, Simon Wagner, Anton Höck, Peter Tropper   +3 more
wiley   +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

High-Quality Fiber Bragg Gratings Inscribed by Femtosecond Laser Point-by-Point Technology. [PDF]

Micromachines (Basel), 2022
Chen R, He J, Xu X, Wu J, Wang Y, Wang Y.   +5 more
europepmc   +1 more source