Results 41 to 50 of about 224,858 (315)

A multiplexed CW Brillouin system for precise interrogation of a sensor array made from short discrete sections of optical fibre [PDF]

open access: yes, 2008
A novel configuration for precise temperature sensing in an array of optical fibre sections is reported. The sections are chosen to have different Brillouin shifts, to enable separation of scattered light signals in the frequency domain, rather than the ...
Dakin, J. P.   +7 more
core   +1 more source

Characterization and simulation of optical sensors

open access: yesAccident Analysis & Prevention, 2012
Numerical simulation is gradually becoming an advantage in active safety. This is why the development of realistic numerical models enabling to substitute real truth by simulated truth is primordial. In order to provide an accurate and cost effective solution to simulate real optical sensor behavior, the software Pro-SiVIC™ has been developed ...
Grapinet, Mélanie   +3 more
openaire   +2 more sources

Fibre Bragg grating based effective soil pressure sensor for geotechnical applications [PDF]

open access: yes, 2009
An effective-soil-pressure sensor for geotechnical applications based on Fibre Bragg Gratings is presented. The sensor simultaneous measures total soil pressure and pore pressure, allowing the calculation of the effective stress of soil.
Ricardo Correia   +17 more
core   +1 more source

INTRODUCTION OF A PHOTOGRAMMETRIC CAMERA SYSTEM FOR RPAS WITH HIGHLY ACCURATE GNSS/IMU INFORMATION FOR STANDARDIZED WORKFLOWS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In this paper we present the evaluation of DLR’s modular airborne camera system MACS-Micro for remotely piloted aircraft system (RPAS) with a maximum takeoff weight (MTOW) less than 5kg.
T. Kraft   +4 more
doaj   +1 more source

Microfluidic Biosensor Based on Molybdenum Disulfide (MoS2) Modified Thin-Core Microfiber for Immune Detection of Toxoplasma gondii

open access: yesSensors, 2023
Toxoplasma gondii (T. gondii) is a zoonotic parasite that is widely distributed and seriously endangers public health and human health. Therefore, accurate and effective detection of T. gondii is crucial.
Huiji Chen   +6 more
doaj   +1 more source

LOCK-FREE MULTITHREADED SEMI-GLOBAL MATCHING WITH AN ARBITRARY NUMBER OF PATH DIRECTIONS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
This paper describes an efficient implementation of the semi-global matching (SGM) algorithm on multi-core processors that allows a nearly arbitrary number of path directions for the cost aggregation stage.
D. Frommholz
doaj   +1 more source

Gas sensor design using a Fabry-Perot interferometer with long cavity length as a modulator [PDF]

open access: yes, 2006
A gas sensor based on correlation spectroscopy using a FPI with long cavity length (>500 µm) as a modulator is presented.
Rutt, Harvey N.   +3 more
core   +1 more source

Microfiber Optical Sensors: A Review

open access: yesSensors, 2014
With diameter close to or below the wavelength of guided light and high index contrast between the fiber core and the surrounding, an optical microfiber shows a variety of interesting waveguiding properties, including widely tailorable optical confinement, evanescent fields and waveguide dispersion.
Jingyi Lou, Yipei Wang, Limin Tong
openaire   +3 more sources

The optimisation of a paired emitter-detector diode optical pH sensing device [PDF]

open access: yes, 2010
With recent improvements in wireless sensor network hardware there has been a concurrent push to develop sensors that are suitable in terms of price and performance.
Corcoran, Brian   +11 more
core   +1 more source

Fiber-optic chemical sensing with Langmuir-Blodgett overlay waveguides [PDF]

open access: yes, 1999
Fiber-optic chemical sensing has been demonstrated with a side-polished single- mode optical fiber, evanescently coupled to chemically sensitive Langmuir- Blodgett (LB) overlay waveguides.
Tatam, Ralph P.   +3 more
core   +1 more source

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