Results 71 to 80 of about 589,957 (205)

Optical fiber sensor review [PDF]

, 2020
Technology of fiber optic are widely used for its applications which mostly known for carrying information over long distances for the best efficiency.
Abdul Manaf, Muhammad Shukri, Abdul Rahim, Ruzairi, Durasad, Akmal Dzuhairi, Md. Yunos, Yusri   +3 more
core  

Bio-Chemical Sensors Based on Excessively Tilted Fiber Grating

Photonic Sensors
Excessively tilted fiber gratings (ExTFGs) are a type of special optical fiber grating device different from traditional fiber Bragg gratings, long period fiber gratings, and tilted fiber Bragg gratings.
Fudan Chen, Hong Gu, Binbin Luo, Shenghui Shi   +3 more
doaj   +1 more source

The passive operating mode of the linear optical gesture sensor

, 2017
The study evaluates the influence of natural light conditions on the effectiveness of the linear optical gesture sensor, working in the presence of ambient light only (passive mode).
Czuszynski, Krzysztof, Ruminski, Jacek, Wtorek, Jerzy   +2 more
core   +2 more sources

Test of FBG sensors for monitoring high pressure pipes [PDF]

, 2017
Fibre Bragg Grating (FBG) sensors are increasingly being used on a wide range of civil, industrial and aerospace structures. The sensors are created inside optical fibres (usually standard telecommunication fibres); the optical fibres technology allows ...
Ambastha, Bianco, Caponero, Davis, Felli, Felli, Felli, Leng, Mendez, Paolozzi, Paolozzi, Paris, Salazar-Ferro, Sun, Todd, Vendittozzi, Vendittozzi, Zhou   +17 more
core   +2 more sources

Effect of Cultivar on Chlorophyll Meter and Canopy Reflectance Measurements in Cucumber [PDF]

, 2020
Optical sensors can be used to assess crop N status to assist with N fertilizer management. Differences between cultivars may affect optical sensor measurement.
De Souza, Romina, Gallardo Pino, María Luisa, Grasso, Rafael, Padilla Ruiz, Francisco Manuel, Peña Fleitas, María Teresa, Thompson, Rodney   +5 more
core   +1 more source

Detection of solvents using a distributed fibre optic sensor [PDF]

, 2003
A fibre optic sensor that is capable of distributed detection of liquid solvents is presented. Sensor interrogation using optical time domain reflectometry (OTDR) provides the capability of locating solvent spills to a precision of ±2 m over a total ...
A. MacLean, B. Culshaw, C. Moran, D. Marsh, Diemeer, Fields, Michie, P. Parker, W. Johnstone   +8 more
core   +1 more source

An Interpretable Machine Vision Approach to Human Activity Recognition using Photoplethysmograph Sensor Data [PDF]

, 2018
The current gold standard for human activity recognition (HAR) is based on the use of cameras. However, the poor scalability of camera systems renders them impractical in pursuit of the goal of wider adoption of HAR in mobile computing contexts ...
Brophy, Eoin, Smeaton, Alan F., Veiga, José Juan Dominguez, Wang, Zhengwei, Ward, Tomas E.   +4 more
core   +1 more source

Locally rendered high-resolution Land Use/Land Cover Bitmaps from OpenStreetMap Data for geospecific 3D Simulation [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This paper describes a method for creating land use/land cover (LULC) bitmaps from OpenStreetMap data for virtually any part of the world at any resolution on a standard personal computer.
D. Frommholz
doaj   +1 more source

Steel Wire Rope Damage Width Identification Method Based on Residual Networks and Multi-Channel Feature Fusion

Machines
In order to ensure the safety of steel wire rope in various application scenarios, it is particularly important to quantitatively detect the defects of wire rope. Complex detection conditions affect the detection efficiency of wire rope. Therefore, based
Yan Peng, Junde Liu, Junjie He, Yongjun Qiu, Xie Liu, Le Chen, Fengfeng Yang, Bulong Chen, Bin Tang, Yuhan Wang   +9 more
doaj   +1 more source

All optical fog-sensor for determining the fog visibility range in optical wireless communication links [PDF]

, 2010
The goal of this research work is to use an all optical based fog sensor to study the atmospheric visibility of fog and its constituents on the optical wireless communication (OWC) links in a controlled laboratory test-bid.
Ghassemlooy, Zabih, Ijaz, Muhammad, Le Minh, Hoa, Rajbhandari, Sujan   +3 more
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