Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 115008 |
Fachzeitschrift | Review of scientific instruments |
Jahrgang | 88 |
Ausgabenummer | 11 |
Publikationsstatus | Veröffentlicht - 21 Nov. 2017 |
Abstract
In this paper, the sensor noise of two geophone configurations (L-22D and L-4C geophones from Sercel with custom built amplifiers) was measured by performing two huddle tests. It is shown that the accuracy of the results can be significantly improved by performing the huddle test in a seismically quiet environment and by using a large number of reference sensors to remove the seismic foreground signal from the data. Using these two techniques, the measured sensor noise of the two geophone configurations matched the calculated predictions remarkably well in the bandwidth of interest (0.01 Hz-100 Hz). Low noise operational amplifiers OPA188 were utilized to amplify the L-4C geophone to give a sensor that was characterized to be near Johnson noise limited in the bandwidth of interest with a noise value of 10-11 m/Hz at 1 Hz.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Instrumentierung
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in: Review of scientific instruments, Jahrgang 88, Nr. 11, 115008, 21.11.2017.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Huddle test measurement of a near Johnson noise limited geophone
AU - Kirchhoff, R.
AU - Mow-Lowry, C. M.
AU - Adya, V. B.
AU - Bergmann, G.
AU - Cooper, S.
AU - Hanke, M. M.
AU - Koch, P.
AU - Köhlenbeck, S. M.
AU - Lehmann, J.
AU - Oppermann, P.
AU - Wu, D. S.
AU - Lück, H.
AU - Strain, K. A.
AU - Woehler, J.
N1 - Funding Information: The authors gratefully thank the International Max Planck Research School (IMPRS) on Gravitational Wave Astronomy and QUEST, the Center for Quantum Engineering and Space-Time Research for their support. This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement No. 701264. We also thank Brian Lantz for his very helpful comments on this paper. Publisher Copyright: © 2017 Author(s). Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/11/21
Y1 - 2017/11/21
N2 - In this paper, the sensor noise of two geophone configurations (L-22D and L-4C geophones from Sercel with custom built amplifiers) was measured by performing two huddle tests. It is shown that the accuracy of the results can be significantly improved by performing the huddle test in a seismically quiet environment and by using a large number of reference sensors to remove the seismic foreground signal from the data. Using these two techniques, the measured sensor noise of the two geophone configurations matched the calculated predictions remarkably well in the bandwidth of interest (0.01 Hz-100 Hz). Low noise operational amplifiers OPA188 were utilized to amplify the L-4C geophone to give a sensor that was characterized to be near Johnson noise limited in the bandwidth of interest with a noise value of 10-11 m/Hz at 1 Hz.
AB - In this paper, the sensor noise of two geophone configurations (L-22D and L-4C geophones from Sercel with custom built amplifiers) was measured by performing two huddle tests. It is shown that the accuracy of the results can be significantly improved by performing the huddle test in a seismically quiet environment and by using a large number of reference sensors to remove the seismic foreground signal from the data. Using these two techniques, the measured sensor noise of the two geophone configurations matched the calculated predictions remarkably well in the bandwidth of interest (0.01 Hz-100 Hz). Low noise operational amplifiers OPA188 were utilized to amplify the L-4C geophone to give a sensor that was characterized to be near Johnson noise limited in the bandwidth of interest with a noise value of 10-11 m/Hz at 1 Hz.
UR - http://www.scopus.com/inward/record.url?scp=85034970078&partnerID=8YFLogxK
U2 - 10.1063/1.5000592
DO - 10.1063/1.5000592
M3 - Article
C2 - 29195374
AN - SCOPUS:85034970078
VL - 88
JO - Review of scientific instruments
JF - Review of scientific instruments
SN - 0034-6748
IS - 11
M1 - 115008
ER -