Results 11 to 20 of about 3,377 (214)
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
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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
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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
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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
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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
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Seismic Data Quality Analysis Based on Image Recognition Using Convolutional Neural Network
Jurnal Informatika, 2022 Seismometer monitoring and evaluation activities at the Indonesia Tsunami Early Warning System (InaTEWS) station can be carried out through a seismometer sensor calibration system with the use of the software of Seismic Data Quality Analysis.
Hapsoro Agung Nugroho +2 more
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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
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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
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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
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Resonances of the InSight Seismometer on Mars
Bulletin of the Seismological Society of America, 2021 ABSTRACT The Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) seismometer was deployed to the surface of Mars in December 2018–February 2019. The specific deployment conditions, which are very different from those of a standard broadband instrument on the Earth, result in resonances caused by ...
M. Bierwirth +31 more
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