Enhancement of stimulated Brillouin scattering of higher-order acoustic modes in single-mode optical fiber [PDF]
, 2005 This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-30-20-2685. Systematic
Afshaarvahid +15 more
core +1 more source
New role for communication fibre optic cables in water utility for leak detection on main water pipeline [PDF]
Tehnika, 2015 During construction of main water pipeline it is usual practice to lay fibre optic communication cable along water pipe. This cable is one of the up to date communication media which is used for the connection purposes of water control SCADA equipment as
Graovac Radojica M. +1 more
doaj +1 more source
ST Quartz Acoustic Wave Sensors with Sectional Guiding Layers [PDF]
, 2008 We report the effect of removing a section of guiding layer from the propagation paths of ST-quartz Love wave sensors; this offers the ease of fabrication of a polymer guiding layer whilst retaining the native surface of the quartz which may then be used
Campbell +21 more
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Remote sensing of sediment characteristics by optimized echo-envelope matching [PDF]
, 2003 A sediment geoacoustic parameter estimation technique is described which compares bottom returns, measured by a calibrated monostatic sonar oriented within 15° of vertical and having a 10°–21° beamwidth, with an echo envelope model based on high ...
de Moustier, Christian +1 more
core +2 more sources
Research progress of earth exploration technologies based on distributed acoustic sensing
地质科技通报, 2023 As a new type of fiber optic sensing technology for long-distance, distributed and real-time monitoring, distributed acoustic sensing (DAS) has been a wide concern since its initiation.
Wei Liu +3 more
doaj +1 more source
Evaluating seismic beamforming capabilities of distributed acoustic sensing arrays [PDF]
Solid Earth, 2021 The versatility and cost efficiency of fibre-optic distributed acoustic sensing (DAS) technologies facilitate geophysical monitoring in environments that were previously inaccessible for instrumentation.
M. P. A. van den Ende, J.-P. Ampuero
doaj +1 more source
The cornerstone of fiber-optic distributed vibration/acoustic sensing: Ф-OTDR
Opto-Electronic Advances, 2023 Fiber-optic distributed vibration/acoustic sensing (DVS/DAS) technology achieves breakthrough performance and explores broad cornerstone industrial applications.
Yunjiang Rao
doaj +1 more source
Accelerated High-Resolution Photoacoustic Tomography via Compressed Sensing [PDF]
, 2016 Current 3D photoacoustic tomography (PAT) systems offer either high image quality or high frame rates but are not able to deliver high spatial and temporal resolution simultaneously, which limits their ability to image dynamic processes in living tissue.
Arridge, Simon +7 more
core +2 more sources
Measurement and Evaluation Method of Distributed Optical Fiber Acoustic Sensing Performance
PhotonicsDistributed acoustic sensing incorporates multiple indicators, and there exists a mutually constraining relationship among these indicators. Different application fields have varying requirements for indicators.
Zhiyuan Xie +3 more
doaj +1 more source
Design exploration and performance strategies towards power-efficient FPGA-based achitectures for sound source localization [PDF]
, 2019 Many applications rely on MEMS microphone arrays for locating sound sources prior to their execution. Those applications not only are executed under real-time constraints but also are often embedded on low-power devices.
Braeken, An +4 more
core +1 more source