Results 21 to 30 of about 12,097 (215)

Lab and Field Tests of a Low‐Cost 3‐Component Seismometer for Shallow Passive Seismic Applications

open access: yesEarth 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

Research on Self-Noise Characteristics of Nine Types of Seismometers Obtained by PDF Representation Using Continuous Seismic Data from the Malingshan Seismic Station, China

open access: yesSensors, 2022
The self-noise level of a seismometer can determine the performance of the seismic instrument and limit the ability to use seismic data to solve geoscience problems.
Kaiming Wang   +4 more
doaj   +1 more source

Temperature sensitivity analysis on mass-spring potential with electrostatic frequency reduction for lunar seismometers

open access: yesAIP 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]

open access: yesE3S 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

open access: yes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

Extensions of the Galperin Transformation Matrices for Triaxial Seismometers

open access: yesSensors, 2022
Since its invention in 1955, the Galperin symmetric triaxial seismometer has been widely used for seismic detection on Earth, and most recently on the planet Mars.
Talso C. P. Chui   +2 more
doaj   +1 more source

Extending a Lippmann style seismometer's dynamic range by using a non-linear feedback circuit [PDF]

open access: yesAdvances 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

Wiener filtering with a seismic underground array at the Sanford Underground Research Facility [PDF]

open access: yes, 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

Identifying Earthquakes in Low-Cost Sensor Signals Contaminated with Vehicular Noise

open access: yesApplied 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

Subtraction of Newtonian Noise Using Optimized Sensor Arrays [PDF]

open access: yes, 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

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