Performance characteristics of a rotational seismometer for near-field and engineering applications

Ramanath Cowsik; Tsitsi Madziwa-Nussinov; Kasey Wagoner; Douglas Wiens; Michael Wysession

doi:10.1785/0120080207

Performance characteristics of a rotational seismometer for near-field and engineering applications

Ramanath Cowsik, Tsitsi Madziwa-Nussinov, Kasey Wagoner, Douglas Wiens, Michael Wysession

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Based on the concept that torsion balances act as good filters for rotational oscillations at frequencies above their natural frequency of oscillations, we have fabricated a simple prototype to serve as a rotational seismometer for near-field and engineering studies. This instrument displays a nearly flat response at frequencies above 10 mHz, and the preliminary data taken with this instrument show a sensitivity of 5 × 10^-6(ν/0:01 Hz) rad sec^-1 Hz^-1/2. Marginal improvements of the fabrication and housing will be needed to fully cover the sensitivities recommended by a U.S. Geological Survey (USGS) panel for studies at these frequencies.

Original language	English (US)
Pages (from-to)	1181-1189
Number of pages	9
Journal	Bulletin of the Seismological Society of America
Volume	99
Issue number	2 B
DOIs	https://doi.org/10.1785/0120080207
State	Published - 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geophysics
Geochemistry and Petrology

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10.1785/0120080207

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abstract = "Based on the concept that torsion balances act as good filters for rotational oscillations at frequencies above their natural frequency of oscillations, we have fabricated a simple prototype to serve as a rotational seismometer for near-field and engineering studies. This instrument displays a nearly flat response at frequencies above 10 mHz, and the preliminary data taken with this instrument show a sensitivity of 5 × 10-6(ν/0:01 Hz) rad sec-1 Hz-1/2. Marginal improvements of the fabrication and housing will be needed to fully cover the sensitivities recommended by a U.S. Geological Survey (USGS) panel for studies at these frequencies.",

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AU - Cowsik, Ramanath

AU - Madziwa-Nussinov, Tsitsi

AU - Wagoner, Kasey

AU - Wiens, Douglas

AU - Wysession, Michael

PY - 2009

Y1 - 2009

N2 - Based on the concept that torsion balances act as good filters for rotational oscillations at frequencies above their natural frequency of oscillations, we have fabricated a simple prototype to serve as a rotational seismometer for near-field and engineering studies. This instrument displays a nearly flat response at frequencies above 10 mHz, and the preliminary data taken with this instrument show a sensitivity of 5 × 10-6(ν/0:01 Hz) rad sec-1 Hz-1/2. Marginal improvements of the fabrication and housing will be needed to fully cover the sensitivities recommended by a U.S. Geological Survey (USGS) panel for studies at these frequencies.

AB - Based on the concept that torsion balances act as good filters for rotational oscillations at frequencies above their natural frequency of oscillations, we have fabricated a simple prototype to serve as a rotational seismometer for near-field and engineering studies. This instrument displays a nearly flat response at frequencies above 10 mHz, and the preliminary data taken with this instrument show a sensitivity of 5 × 10-6(ν/0:01 Hz) rad sec-1 Hz-1/2. Marginal improvements of the fabrication and housing will be needed to fully cover the sensitivities recommended by a U.S. Geological Survey (USGS) panel for studies at these frequencies.

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JF - Bulletin of the Seismological Society of America

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ER -

Performance characteristics of a rotational seismometer for near-field and engineering applications

Abstract

All Science Journal Classification (ASJC) codes

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