Lab and Field Tests of a Low‐Cost 3‐Component Seismometer for Shallow Passive Seismic Applications
Earth and Space Science, 2023 We performed laboratory tests and field surveys to evaluate the performance of a low‐cost 3‐component seismometer, consisting of three passive electromagnetic spring‐mass sensors, whose 4.5 Hz natural frequency is extended down to 0.5 Hz thanks to hyper ...
D. Arosio +4 more
doaj +1 more source
A Sub-1 Hz Resonance Frequency Resonator Enabled by Multi-Step Tuning for Micro-Seismometer
Micromachines, 2021 We propose a sub-1 Hz resonance frequency MEMS resonator that can be used for seismometers. The low resonance frequency is achieved by an electrically tunable spring with an ultra-small spring constant.
Jun Wu +3 more
doaj +1 more source
Seismic Observation and Analysis Based on Three-Component Fiber Optic Seismometer
IEEE Access, 2020 We demonstrate a three-component fiber optic seismometer for seismic observation, with no electronics in the sensor probe, but relying exclusively on optical fiber in the form of an unbalanced Michelson interferometer, with state-of-the-art performance ...
Yue Yang +6 more
doaj +1 more source
AIP Advances, 2021 A broadband seismometer has been identified as an important scientific instrument that can be deployed on the surface of Earth’s Moon in the near future.
L. A. N. de Paula +6 more
doaj +1 more source
Validating a low-cost seismometer using a shaking table [PDF]
E3S Web of Conferences, 2022 Ambient vibration measurement using a seismometer represent a non-invasive and non-destructive method for seismic-related studies. This method inhibits widespread applications, i.e., assessing site fundamental frequency, estimating bedrock level ...
Setiawan Bambang +5 more
doaj +1 more source
Research on the application of underwater node seismograph in land active source detection
地震科学进展, 2023 The precise timing of the active source excitation is very important. In order to obtain more accurate excitation timing, we debugged and installed the underwater node seismometer observation system in the Liujiaxia active source, and recorded the ...
Dianfeng Sun +5 more
doaj +1 more source
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
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
Wiener filtering with a seismic underground array at the Sanford Underground Research Facility [PDF]
, 2014 A seismic array has been deployed at the Sanford Underground Research Facility in the former Homestake mine, South Dakota, to study the underground seismic environment.
Christensen, Nelson +6 more
core +2 more sources