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1-20 OF 63 RESULTS FOR
OptaSense
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Journal Article
Digitalization of asset surveillance through distributed fiber-optic sensing: Geophysics and engineering diagnostics and streaming Available to Purchase
Journal: The Leading Edge
Publisher: Society of Exploration Geophysicists
Published: 01 September 2022
The Leading Edge (2022) 41 (9): 636–640.
Journal Article
Distributed acoustic sensing for seismic surface wave data acquisition in an intertidal environment Available to Purchase
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 07 May 2024
Geophysics (2024) 89 (4): KS95–KS103.
.... engineering geophysics fiber optics intertidal seismic surface waves Geological Survey of Ireland (GSI), Science Foundation Ireland (SFI), the European Regional Development Fund and Optasense Limited 13/RC/2092_P2 Science Foundation Ireland, Geological Survey of Ireland and the Environmental...
Journal Article
Detection of microseismic events in continuous DAS recordings using semantic image segmentation Available to Purchase
Journal: The Leading Edge
Publisher: Society of Exploration Geophysicists
Published: 01 November 2024
The Leading Edge (2024) 43 (11): 740–746.
Journal Article
Interferometric salt-flank estimation Available to Purchase
Journal: Interpretation
Publisher: Society of Exploration Geophysicists
Published: 29 May 2015
Interpretation (2015) 3 (3): SW37–SW49.
... for OptaSense Inc. He is one of the founders of 4th Wave Imaging, a service company specializing in time-lapse seismic, which was acquired by Fugro in 2007. He worked for Fugro following that acquisition until joining SR2020, Inc., in 2013. He has also worked for Chevron and Western Geophysical. He is a member...
Journal Article
Rose Parade Seismology: Signatures of Floats and Bands on Optical Fiber Available to Purchase
Xin Wang, Ethan F. Williams, Martin Karrenbach, Miguel González Herráez, Hugo Fidalgo Martins, Zhongwen Zhan
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 06 May 2020
Seismological Research Letters (2020) 91 (4): 2395–2398.
... shown in this figure were acquired by the OptaSense 3rd Generation Distributed Acoustic Sensor (ODH‐3) system; similar seismic signals have also been clearly observed on the High‐Fidelity Distributed Acoustic system (HDAS; Fig. S2). The color version of this figure is available only in the electronic...
Includes: Supplemental Content
Image
Demonstration of signal processing and visualization. (a) Original strain r... Available to Purchase
Published: 26 July 2024
Figure 3. Demonstration of signal processing and visualization. (a) Original strain recording for 100 s beginning on 4 November 2021 01:59:02 UT, recorded by the Optasense interrogator channel 9000–19,000 on north ocean‐bottom cable from RAPID dataset ( Wilcock and Ocean Observatories Initiative
Image
Probabilistic PSD (PPSD) as a function of distance. (a) The PSDs centered a... Open Access
in Multiplexed Distributed Acoustic Sensing Offshore Central Oregon
> Seismological Research Letters
Published: 28 February 2025
between 250 and 350 Mbps. (d) The PSDs of 2021 DAS data at the same locations, were acquired on dark fiber with an OptaSense QuantX interrogator. The background colors of the two subfigures represent the probability density of the PSD for the segment centered at the 12.3 km distance.
Image
Workflow for DASstore: distributed acoustic sensing (DAS) data are converte... Available to Purchase
Published: 20 October 2023
, RawDataTime–1D time axis, with four customized datasets: GpBits, GpsStatus, PpsOffset, and SampleCount. These datasets are specific to the OptaSense interrogator of the OOI data. The color version of this figure is available only in the electronic edition.
Image
Cases of wavefield denoising. (a) Waveforms of an M D 2.8 earthqua... Available to Purchase
Published: 26 July 2024
on panel (a). (c) Waveforms with stochastic noise removed by curvelet transform based on panel (b). (d) Strain recording filtered to 15–27 Hz for 10 s beginning on 4 November 2021 01:59:22 UT, recorded by the Optasense interrogator on north ocean‐bottom cable from RAPID dataset ( Wilcock and Ocean
Journal Article
Distributed Acoustic Sensing for Whale Vocalization Monitoring: A Vertical Deployment Field Test Available to Purchase
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 28 February 2025
Seismological Research Letters (2025) 96 (2A): 801–815.
... and time. This study utilized the OptaSense QuantX interrogator and the OptaSense Proteus sensing cable. The DAS system was configured with a channel spacing of 1.03 m (preset by the interrogator), and an initial ping rate of 40 kHz, which was decimated to 10 kHz to reduce computational costs...
Includes: Supplemental Content
Image
Swell‐modulated noise. (a–d) A 2 min section of 2024 ASN OptoDAS data on li... Open Access
in Multiplexed Distributed Acoustic Sensing Offshore Central Oregon
> Seismological Research Letters
Published: 28 February 2025
propagation around 300–500 m/s, (d) spectral amplitude at 2 Hz calculated from a short‐time Fourier transform along each channel, with a black contour at 200 n ε / s the absolute value of the low‐pass filtered data from (a) overlaid. (e–h) Same as panels (a–d) but for the 2021 OptaSense QuantX
Image
Spectrograms for DAS channels at different distances from shore: (a) 25 km ... Available to Purchase
Published: 09 June 2023
Figure 3. Spectrograms for DAS channels at different distances from shore: (a) 25 km and (b) 45 km using the same color scale. The black lines indicate days with missing data: the interrogator swap on day 265 and the OPTASENSE license renewal on day 334. (a) The ocean surface gravity waves (OSGW
Image
Seismic records show the amplitude of shaking on the Pasadena distributed a... Available to Purchase
in Rose Parade Seismology: Signatures of Floats and Bands on Optical Fiber
> Seismological Research Letters
Published: 06 May 2020
appeared sequentially (Fig. S1). The gaps on the yellow stripes are caused by traffic congestion. The seismic data shown in this figure were acquired by the OptaSense 3rd Generation Distributed Acoustic Sensor (ODH‐3) system; similar seismic signals have also been clearly observed on the High‐Fidelity
Journal Article
DGS to sponsor 24th annual 3D Seismic Symposium Available to Purchase
Journal: The Leading Edge
Publisher: Society of Exploration Geophysicists
Published: 01 February 2018
The Leading Edge (2018) 37 (2): 149.
... Joaquin Basin. Brad Bacon will give a presentation on PDC Energy's Wattenberg integrated multivariate study. Martin Karrenbach, OptaSense, will present a Devon project from Oklahoma's STACK play, discussing a combined analysis of distributed acoustic sensing microseismic and strain. At the time...
Journal Article
PubDAS: A PUBlic Distributed Acoustic Sensing Datasets Repository for Geosciences Available to Purchase
Zack J. Spica, Jonathan Ajo‐Franklin, Gregory C. Beroza, Biondo Biondi, Feng Cheng, Beatriz Gaite, Bin Luo, Eileen Martin, Junzhu Shen, Clifford Thurber, Loïc Viens, Herbert Wang, Andreas Wuestefeld, Han Xiao, Tieyuan Zhu
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 04 January 2023
Seismological Research Letters (2023) 94 (2A): 983–998.
... ˙ FORESEE Silixa iDAS‐v2 365 HDF5 125 ‡ 29,338 10 4,900 2 ε ˙ FOSSA Silixa iDAS‐v2 7 TDMS 500 11,680 10 23,300 2 ε ˙ LaFarge Silixa iDAS 2 * SEG‐Y 1,000 45 10 1,120 1 ε ˙ Stanford‐1 OptaSense ODH3 940 SEG‐Y 50 18,908 7.14 2,500 8.16...
Journal Article
The Global DAS Month of February 2023 Available to Purchase
Andreas Wuestefeld, Zack J. Spica, Kasey Aderhold, Hsin‐Hua Huang, Kuo‐Fong Ma, Voon Hui Lai, Meghan Miller, Lena Urmantseva, Daniel Zapf, Daniel C. Bowden, Pascal Edme, Tjeerd Kiers, Antonio P. Rinaldi, Katinka Tuinstra, Camille Jestin, Sergio Diaz‐Meza, Philippe Jousset, Christopher Wollin, Arantza Ugalde, Sandra Ruiz Barajas, Beatriz Gaite, Gilda Currenti, Michele Prestifilippo, Eiichiro Araki, Takashi Tonegawa, Sjoerd de Ridder, Andy Nowacki, Fabian Lindner, Martin Schoenball, Christoph Wetter, Hong‐Hu Zhu, Alan F. Baird, Robin A. Rørstadbotnen, Jonathan Ajo‐Franklin, Yuanyuan Ma, Robert E. Abbott, Kathleen M. Hodgkinson, Robert W. Porritt, Christian Stanciu, Agatha Podrasky, David Hill, Biondo Biondi, Siyuan Yuan, Bin Luo, Sergei Nikitin, Jan Petter Morten, Vlad‐Andrei Dumitru, Werner Lienhart, Erin Cunningham, Herbert Wang
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 27 November 2023
Seismological Research Letters (2024) 95 (3): 1569–1577.
... ProdML 19.2 51,187 2,666 11.2 100 439 27 Stanford University Optasense ODH‐3 custom H5 8.2 2,856 350 16 100 125 28 SUS Tech Silixa iDAS‐MG NPY 20.4 3,000 147 10 100 15 29 T8 sensor T8 DAS Dunay T8 (H5) 19.2 700 36 20 100 4.6 30 Tampnet/ASN ASN OptoDAS ASN...
Journal Article
Multiplexed Distributed Acoustic Sensing Offshore Central Oregon Open Access
Qibin Shi, Ethan F. Williams, Bradley P. Lipovsky, Marine A. Denolle, William S. D. Wilcock, Deborah S. Kelley, Katelyn Schoedl
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 28 February 2025
Seismological Research Letters (2025) 96 (2A): 784–800.
... between 250 and 350 Mbps. (d) The PSDs of 2021 DAS data at the same locations, were acquired on dark fiber with an OptaSense QuantX interrogator. The background colors of the two subfigures represent the probability density of the PSD for the segment centered at the 12.3 km distance. ...
Includes: Supplemental Content
Journal Article
Distributed acoustic sensing for reservoir monitoring with VSP Available to Purchase
Albena Mateeva, Jorge Lopez, Jeff Mestayer, Peter Wills, Barbara Cox, Denis Kiyashchenko, Zhaohui Yang, Wilfred Berlang, Rocky Detomo, Samantha Grandi
Journal: The Leading Edge
Publisher: Society of Exploration Geophysicists
Published: 01 October 2013
The Leading Edge (2013) 32 (10): 1278–1283.
... this technology. We also thank Optasense for a fruitful collaboration. All DAS data shown in this article were acquired by OptaSense. ...
Journal Article
SeaFOAM: A Year‐Long DAS Deployment in Monterey Bay, California Available to Purchase
Barbara Romanowicz, Richard Allen, Knute Brekke, Li‐Wei Chen, Yuancong Gou, Ivan Henson, Julien Marty, Doug Neuhauser, Brian Pardini, Taka’aki Taira, Stephen Thompson, Junli Zhang, Stephane Zuzlewski
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 09 June 2023
Seismological Research Letters (2023) 94 (5): 2348–2359.
...Figure 3. Spectrograms for DAS channels at different distances from shore: (a) 25 km and (b) 45 km using the same color scale. The black lines indicate days with missing data: the interrogator swap on day 265 and the OPTASENSE license renewal on day 334. (a) The ocean surface gravity waves (OSGW...
Journal Article
Characterizing Vehicle‐Induced Distributed Acoustic Sensing Signals for Accurate Urban Near‐Surface Imaging Available to Purchase
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 21 April 2025
Seismological Research Letters (2025)
... since 10 December 2019. Data acquisition was performed using an ODH‐3 interrogator from Luna–OptaSense, operating at a sampling rate of 250 samples per second with a gauge length of 16 m. The DAS array comprises 1250 channels, each spaced 8.16 m apart. We utilized a section of the fiber along Sand Hill...
Early Publication
Includes: Supplemental Content
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