Results 241 to 250 of about 22,636 (288)

Traceable calibration of a broadband seismometer down to 5 mHz

Measurement science and technology, 2022
Broadband seismometers have been widely employed in geophysical observation and disaster prevention. To ensure the reliability of the measurement, traceable calibration of their sensitivities following ISO 16063-11 down to 8 mHz is required. However, the
T. Shimoda, W. Kokuyama, H. Nozato
semanticscholar   +1 more source

A Vertical Seismometer With Built-In Retroreflector for Absolute Gravimetry

IEEE Transactions on Instrumentation and Measurement, 2021
Classical absolute gravimeters are widely used in many areas, including metrology, seismology, geophysics, and exploration. These gravimeters apply a free-fall method to measure absolute gravitational acceleration using a laser interferometer.
Meiying Guo, Kang Wu, Jiamin Yao, Yi Wen, Lijun Wang   +4 more
semanticscholar   +1 more source

Development of a Compact Broadband Ocean-Bottom Seismometer

Seismological Research Letters, 2021
Studies of very-low-frequency earthquakes and low-frequency tremors (slow earthquakes) in the shallow region of plate boundaries need seafloor broadband seismic observations.
M. Shinohara, Tomoaki Yamada, H. Shiobara, Y. Yamashita   +3 more
semanticscholar   +1 more source

The Deployment of the Seismometer to Investigate Ice and Ocean Structure (SIIOS) in Northwest Greenland: An Analog Experiment for Icy Ocean World Seismic Deployments

, 2021
In anticipation of future spacecraft missions to icy ocean worlds, the Seismometer to Investigate Ice and Ocean Structure (SIIOS) was funded by National Aeronautics and Space Administration, to prepare for seismologic investigations of these worlds ...
A. Marusiak, N. Schmerr, D. DellaGiustina, B. Avenson, S. Bailey, V. Bray, J. Brodbeck, C. Carr, P. Dahl, N. Habib, E. Pettit, N. Wagner, R. Weber   +12 more
semanticscholar   +1 more source

Highly Sensitive FBG Seismometer With a 3D-Printed Hexagonal Configuration

Journal of Lightwave Technology, 2020
We have designed and developed a compact fiber optic accelerometer for vibration detection. The mechanical vibrating element is a hexagonal structure which is fabricated using 3D-printing technology.
Teng Guo, Tianxi Zhang, Yizhuo Li, X. Qiao   +3 more
semanticscholar   +1 more source

Measurements of Seismometer Orientation of the First Phase CHINArray and Their Implications on Vector-Recording-Based Seismic Studies

Bulletin of The Seismological Society of America (BSSA), 2020
From 2011 to 2013, the CHINArray project led by the Institute of Geophysics, China Earthquake Administration, made the first phase deployment of 350 broadband seismometers at the southeastern margin of the Tibetan plateau.
Sijia Zeng, Yong Zheng, F. Niu, S. Ai
semanticscholar   +1 more source

The Electrochemical Seismometer Based on Fine-Tune Sensing Electrodes for Undersea Exploration

IEEE Sensors Journal, 2020
This paper developed micro-electro-mechanical system (MEMS) based electrochemical seismometers featured with new structures of sensing electrodes for undersea exploration. In comparison to previously reported counterparts, the proposed sensing electrodes
Chao Xu, Junbo Wang, Deyong Chen, Jian Chen, Bowen Liu, Wenjie Qi, Xichen Zheng   +6 more
semanticscholar   +1 more source

The Deployment of the Seismometer to Investigate Ice and Ocean Structure (SIIOS) on Gulkana Glacier, Alaska

, 2020
The Seismometer to Investigate Ice and Ocean Structure (SIIOS) is a NASA-funded analog mission program to test flight-candidate instrumentation on icy-ocean world analog sites. In September 2017, an SIIOS experiment was deployed on Gulkana Glacier.
A. Marusiak, N. Schmerr, D. DellaGiustina, E. Pettit, P. Dahl, B. Avenson, S. Bailey, V. Bray, N. Wagner, C. Carr, R. Weber   +10 more
semanticscholar   +1 more source

A Seismometer for Observations on Mars

Cosmic Research, 2021
Thos article paper the results of the development and creation of a three-component seismometer for measurements on Mars. In the low-frequency and quasi-static region of the spectrum, the instrument also performs the functions of a tiltmeter and gravimeter. A description of the sensing element, a single-axis sensor, is given.
A. K. Ton’shev, N. F. Sayakina, V. P. Matyunin, I. I. Kalinnikov, N. A. Chernogorova, A. B. Manukin, O. S. Kazantseva   +6 more
openaire   +2 more sources

Fiber-Optic Seismometer

SPIE Proceedings, 1987
This paper reviews the present state of seismometry and discusses a seismometer based on fiber-optic technology. In addition, some actual data taken by a portable laboratory-grade fiber-optic seismometer is presented.
P. W. Rodgers, J G Eustace, C J Zarobila, C M Davis   +3 more
openaire   +2 more sources