Results 91 to 100 of about 143,838 (299)

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Fiber optics for aircraft engine/inlet control [PDF]

NASA programs that focus on the use of fiber optics for aircraft engine/inlet control are reviewed. Fiber optics for aircraft control is attractive because of its inherent immunity to EMI and RFI noise.
Baumbick, R. J.
core   +1 more source

Optical fiber temperature sensor based on fiber bragg grating [PDF]

, 2018
It is important to study optical fiber temperature sensor based on fiber Bragg Grating. The Fiber Bragg grating sensors can offer highly sensitive, cost effective solutions for optical sensing.
Sadeq Al-musaw, Sadeq Thamer
core  

All-optical differential current detection technique for unit protection applications [PDF]

, 2013
In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Fusiek, Grzegorz, Niewczas, Pawel, Orr, Philip, Wang, Hao   +3 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Optical Fiber‐Based Wearable Sensors for Remote Health Monitoring [Invited]

Advanced Sensor Research
The wearable optical fiber sensors have demonstrated significant promise in the realm of health monitoring in recent times. These sensors utilize the flexibility and exceptional sensitivity of optical fibers to precisely measure many physiological ...
Guiwei Zhang, Ragini Singh, Bingyuan Zhang, Guoru Li, Santosh Kumar   +4 more
doaj   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Light-sheet skew rays sensing platform based on microstructuring of coreless multimode fiber

Sensing and Bio-Sensing Research
Given the increasing demands for quality assurance in the food industry, a significant challenge emerges in the form of expensive integration of food sensors into packaging.
Lukui Xu, Tingting Zhuang, Bonan Liu, Jinyu Wang, Mamoona Khalid, Soroush Shahnia, Christophe A. Codemard, Zhiyong Bai, Shen Liu, Ying Wang, George Y. Chen, Yiping Wang   +11 more
doaj   +1 more source

Optical technology for flight control systems [PDF]

Optical applications to the flight control system including optical data bus, sensors, and transducers are analyzed. Examples of optical data bus include airborne light optical fiber technology (ALOFT), F-5E, YA-7D, MIL-STD-1553 fiber optic data bus and ...
Mayanagi, M.
core   +1 more source

Self-Referencing Fiber-Optic Intensity Sensors Using Ring Resonators and Fiber Bragg Gratings [PDF]

, 2006
An improved ring resonator self-referencing technique in a new reflection configuration for remote fiber-optic intensity sensors is demonstrated using fiber Bragg gratings. Sensor sensitivity doubles and a single fiber lead is used.
Montalvo García, Julio, Sánchez Montero, David Ricardo, Sánchez-Pena, José Manuel, Vázquez García, María Carmen   +3 more
core   +2 more sources