Results 1 to 10 of about 12,097 (215)
, 2020 The cancellation of noise from terrestrial gravity fluctuations, also known as Newtonian noise (NN), in gravitational-wave detectors is a formidable challenge. Gravity fluctuations result from density perturbations associated with environmental fields, e.
Badaracco, F +11 more
core +1 more source
A 6D interferometric inertial isolation system [PDF]
, 2019 We present a novel inertial-isolation scheme based on six degree-of-freedom (6D) interferometric sensing of a single reference mass. It is capable of reducing inertial motion by more than two orders of magnitude at 100\,mHz compared with what is ...
Martynov, Denis, Mow-Lowry, Conor M.
core +2 more sources
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
MEMS-Based Electrochemical Seismometer with a Sensing Unit Integrating Four Electrodes
Micromachines, 2021 This paper presents a new process to fabricate a sensing unit of electrochemical seismometers using only one silicon–glass–silicon bonded wafer. By integrating four electrodes on one silicon–glass–silicon bonded wafer, the consistency of the developed ...
Wenjie Qi +7 more
doaj +1 more source
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
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
PERFORMANCE OF RESONANT SEISMOMETERS [PDF]
GEOPHYSICS, 1954 A group of resonant vertical seismometers, each tuned to cover a part of the spectrum of microseism frequencies, has been operated for about one year. These instruments (a) clearly distinguish between simultaneous microseisms from two separate sources; (b) show an improved signal‐to‐noise ratio for microseisms from a single storm, permitting earlier ...
Donn, William L. +2 more
openaire +3 more sources
First deep underground observation of rotational signals from an earthquake at teleseismic distance using a large ring laser gyroscope [PDF]
, 2016 Recent advances in large ring laser gyroscopes (RLG) technologies opened the possibility to observe rotations of the ground with sensitivities up to $10^{-11}$ $\frac{rad}{s}$ over the frequency band of seismological interest (0.01-1Hz), thus opening the
BELFI, JACOPO +8 more
core +4 more sources
Micromachined Accelerometers with Sub-µg/√Hz Noise Floor: A Review
Sensors, 2020 This paper reviews the research and development of micromachined accelerometers with a noise floor lower than 1 µg/√Hz. Firstly, the basic working principle of micromachined accelerometers is introduced.
Chen Wang +10 more
doaj +1 more source
Frontiers in Earth Science, 2023 Short-offset towed streamer data, and sparse ocean-bottom seismometer (OBS) data are not conducive to applying multi-parameter full waveform inversion (FWI) in production.
Tao Yang +4 more
doaj +1 more source