Results 31 to 40 of about 18,788 (259)
Seismometer Detection of Dust Devil Vortices by Ground Tilt [PDF]
, 2015 We report seismic signals on a desert playa caused by convective vortices and dust devils. The long-period (10-100s) signatures, with tilts of ~10$^{-7}$ radians, are correlated with the presence of vortices, detected with nearby sensors as sharp ...
Banerdt, W. Bruce +6 more
core +3 more sources
Extending a Lippmann style seismometer's dynamic range by using a non-linear feedback circuit [PDF]
Advances in Geosciences, 2013 A Lippmann style seismometer (Lippmann and Gebrande, 1983) uses a single-coil velocity-feedback method in order to extend toward lower frequencies a geophone's frequency response.
G. Romeo, G. Spinelli
doaj +1 more source
Remote Sensing, 2021 We develop a linear inversion technique for measuring the modal composition and directionality of ambient seismic noise. The technique draws from similar techniques used in astrophysics and gravitational-wave physics, and relies on measuring cross ...
Patrick M. Meyers +7 more
doaj +1 more source
Subtraction of Newtonian Noise Using Optimized Sensor Arrays [PDF]
, 2012 Fluctuations in the local Newtonian gravitational field present a limit to high precision measurements, including searches for gravitational waves using laser interferometers.
Adhikari, Rana X. +2 more
core +2 more sources
Low Frequency Tilt Seismology with a Precision Ground Rotation Sensor [PDF]
, 2017 We describe measurements of the rotational component of teleseismic surface waves using an inertial high-precision ground-rotation-sensor installed at the LIGO Hanford Observatory (LHO). The sensor has a noise floor of 0.4 nrad$/ \sqrt{\rm Hz}$ at 50 mHz
Bodin, P. +9 more
core +2 more sources
Detection, Analysis, and Removal of Glitches From InSight's Seismic Data From Mars
Earth and Space Science, 2020 The instrument package SEIS (Seismic Experiment for Internal Structure) with the three very broadband and three short‐period seismic sensors is installed on the surface on Mars as part of NASA's InSight Discovery mission.
John‐Robert Scholz +35 more
doaj +1 more source
Identifying Earthquakes in Low-Cost Sensor Signals Contaminated with Vehicular Noise
Applied Sciences, 2023 The importance of monitoring earthquakes for disaster management, public safety, and scientific research can hardly be overstated. The emergence of low-cost seismic sensors offers potential for widespread deployment due to their affordability ...
Leonidas Agathos +5 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
Fiber optic interferometric seismometer with phase feedback control.
Optics Express, 2020 A high-sensitivity ultralow-frequency fiber optic interferometric seismometer using phase feedback control is proposed and demonstrated. The principle of sensitivity improvement using feedback is described, and the characteristics of the seismometer ...
Tianying Chang +6 more
semanticscholar +1 more source