Method of precise sensing channel positioning forϕ-OTDR-based DAS

Y Peng, D Zhang, SC Fu, XL Li… - Measurement Science …, 2023 - iopscience.iop.org
For the applications of distributed acoustic sensing technology (DAS), such as leakage
detection in a pipeline, it is important to precisely identify the sensing channels along a optic …

Leakage localization in an underground pressurized pipeline in steady-state

SAH Sabzevari, SM Javadpour - … Journal of Pressure Vessels and Piping, 2023 - Elsevier
A new easy-to-implement approach based on low sampling rate sensors is proposed to
estimate artificial leakage location in pressurized gas-filled pipelines. The proposed …

The dynamic response of the water retention curve in unsaturated soils during drainage to acoustic excitations

WC Lo, CC Yang, SY Hsu, CH Chen… - Water Resources …, 2017 - Wiley Online Library
We examined the effects of acoustic excitations on the water retention curve, ie, the
relationship between capillary pressure and water saturation in unsaturated porous media …

Effect of soil texture on the propagation and attenuation of acoustic wave at unsaturated conditions

WC Lo, CL Yeh, CT Tsai - Journal of hydrology, 2007 - Elsevier
A central issue in the successful application of acoustic wave method to detect subsurface
hydrological properties is a better understanding of the influence of soil texture on the …

Effects of acoustic stimulation on fluid flow in porous media

S Khasi, A Fayazi, A Kantzas - Energy & Fuels, 2021 - ACS Publications
Acoustic waves are mechanical waves that can be generated via vibrations. The use of such
waves for enhancing flow and transport in porous media has some advantages over …

A field-portable acoustic sensing device to measure soil moisture

S Gorthi, S Chakraborty, B Li, DC Weindorf - Computers and Electronics in …, 2020 - Elsevier
For the last couple of decades, the idea of soil water measurement has gained widespread
importance due to the spiraling crisis of global water resources. While several methods are …

Monitoring buried pipe deformation using acoustic emission: quantification of attenuation

A Smith, N Dixon, G Fowmes - International Journal of Geotechnical …, 2017 - Taylor & Francis
Deformation of soil bodies and soil-structure systems generates acoustic emission (AE),
which are high-frequency stress waves. Listening to this AE by coupling sensors to structural …

Sounds of soil: a new world of interactions under our feet?

MC Rillig, K Bonneval, J Lehmann - Soil Systems, 2019 - mdpi.com
Soils are biodiversity-dense and constantly carry chemical flows of information, with our
mental image of soil being dark and quiet. But what if soil biota tap sound, or more generally …

[HTML][HTML] Bennu regolith mobilized by TAGSAM: Expectations for the OSIRIS-REx sample collection event and application to understanding naturally ejected particles

EB Bierhaus, JT Songer, BC Clark, RD Dubisher… - Icarus, 2021 - Elsevier
Abstract The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith
Explorer (OSIRIS-REx) mission will collect material from the asteroid Bennu and return it to …

Codetection of acoustic emissions during failure of heterogeneous media: New perspectives for natural hazard early warning

J Faillettaz, D Or, I Reiweger - Geophysical Research Letters, 2016 - Wiley Online Library
A simple method for real‐time early warning of gravity‐driven rupture that considers both the
heterogeneity of natural media and characteristics of acoustic emissions attenuation is …