Results 21 to 30 of about 127,919 (291)

Optical fiber flowmeter based on a single mode-multimode-single mode structure

Frontiers in Sensors, 2022
Single mode-Multimode-Single mode (SMS) sensors have been attracted a relevant attention because of their simple manufacturing, their capability of sensing different quantities, and their enhanced sensitivity compared to the most common fiber optic ...
Massimo Olivero, Aurora Bellone, Andon Bano, Alberto Vallan, Guido Perrone   +4 more
doaj   +1 more source

Insights in the Application of Stoichiometric and Non-Stoichiometric Titanium Oxides for the Design of Sensors for the Determination of Gases and VOCs (TiO_2−x and Ti_nO_2n−1 vs. TiO₂)

Sensors, 2020
In this review article, attention is paid towards the formation of various nanostructured stoichiometric titanium dioxide (TiO2), non-stoichiometric titanium oxide (TiO2−x) and Magnéli phase (TinO2n−1)-based layers, which are suitable for the application
Simonas Ramanavicius, Arunas Ramanavicius   +1 more
doaj   +1 more source

Monitoring the Dissipation of the Floating Green Macroalgae Blooms in the Yellow Sea (2007–2020) on the Basis of Satellite Remote Sensing

Remote Sensing, 2021
Large scale green macroalgae blooms (MABs) caused by Ulva prolifera have occurred regularly in the Yellow Sea since 2007. In the MAB dissipation phase, the landing or sinking and decomposition of U. prolifera would alter the physical-chemical environment
Deyu An, Dingfeng Yu, Xiangyang Zheng, Yan Zhou, Ling Meng, Qianguo Xing   +5 more
doaj   +1 more source

Phase-Variation Microwave Displacement Sensor With Good Linearity and Application to Breath Rate Monitoring

IEEE Sensors Journal, 2023
This article presents a novel highly linear reflective-mode displacement sensor based on planar microwave technology. The sensor consists of two parts: 1) the stator, or reader, a one-port transmission line terminated with a matched load and 2) the movable part, or tag, a dielectric slab with an electric LC (ELC) resonator etched on it. In the proposed
Amirhossein Karami-Horestani, Ferran Paredes, Ferran Martín   +2 more
openaire   +3 more sources

Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]

, 2012
In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Philip Orr, Niewczas, Pawel, Paweł Niewczas, Orr, Philip   +3 more
core   +1 more source

Fully differential electro-mechanical phase locked loop sensor circuit [PDF]

, 2013
Embedding a micro-machined sensing element in a closed loop, force feedback system is a technique commonly used to realise high performance MEMS (micro-electro-mechanical systems) sensors due to the advantages of better linearity, increased dynamic range
Wilcock, Reuben, Brown, Andrew D., Wilson, Peter R., Rudolf, Robert, Li, Ke, Harris, Nick   +5 more
core   +1 more source

Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]

, 2006
Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Flockhart, G M H, Cranch, G A, Kirkendall, C K   +2 more
core   +1 more source

Performance of miniaturised thick-film solid state pH sensors [PDF]

, 2012
The performance of novel solid-state Thick-Film pH sensor for water quality sampling suitable for deployment in remote catchment areas is described. These miniaturised screen printed planar pH sensors are an alternative to glass pH electrodes, which have
Atkinson, John, Glanc-Gostkiewicz, M., Atkinson, J.K., Sophocleous, Marios, Garcia-Breijo, Eduardo, Sophocleous, M., Glanc, M., Atkinson, John Karl, Glanc-Gostkiewicz, Monika, Garcia-Breijo, E., Garcia Breijo, Eduardo   +10 more
core   +1 more source

Phase Demodulation Based on K-Space With High Sensitivity for Interferometric Fiber Sensor

IEEE Photonics Journal, 2022
This study firstly proposes and experimentally demonstrates a phase demodulation method with high sensitivity for interferometric fiber sensors (IFSs) on the basis of the fast Fourier transform of a wavenumber domain.
Ling Chen, Jiewen Li, Jiajun Tian, Yang Bang, Kedi Tang, Yong Yao   +5 more
doaj   +1 more source

Nanocantilevers with Adjustable Static Deflection and Significantly Tunable Spectrum Resonant Frequencies for Applications in Nanomechanical Mass Sensors

Nanomaterials, 2018
Nanocantilevers have become key components of nanomechanical sensors that exploit changes in their resonant frequencies or static deflection in response to the environment.
Ivo Stachiv, Petr Sittner
doaj   +1 more source