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Huddle test measurement of a near Johnson noise limited geophone

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • R. Kirchhoff
  • C. M. Mow-Lowry
  • V. B. Adya
  • G. Bergmann
  • H. Lück

Organisationseinheiten

Externe Organisationen

  • Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
  • University of Birmingham
  • University of Glasgow

Details

OriginalspracheEnglisch
Aufsatznummer115008
FachzeitschriftReview of scientific instruments
Jahrgang88
Ausgabenummer11
PublikationsstatusVeröffentlicht - 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

Zitieren

Huddle test measurement of a near Johnson noise limited geophone. / Kirchhoff, R.; Mow-Lowry, C. M.; Adya, V. B. et al.
in: Review of scientific instruments, Jahrgang 88, Nr. 11, 115008, 21.11.2017.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Kirchhoff, R, Mow-Lowry, CM, Adya, VB, Bergmann, G, Cooper, S, Hanke, MM, Koch, P, Köhlenbeck, SM, Lehmann, J, Oppermann, P, Wu, DS, Lück, H, Strain, KA & Woehler, J 2017, 'Huddle test measurement of a near Johnson noise limited geophone', Review of scientific instruments, Jg. 88, Nr. 11, 115008. https://doi.org/10.1063/1.5000592
Kirchhoff, R., Mow-Lowry, C. M., Adya, V. B., Bergmann, G., Cooper, S., Hanke, M. M., Koch, P., Köhlenbeck, S. M., Lehmann, J., Oppermann, P., Wu, D. S., Lück, H., Strain, K. A., & Woehler, J. (2017). Huddle test measurement of a near Johnson noise limited geophone. Review of scientific instruments, 88(11), Artikel 115008. https://doi.org/10.1063/1.5000592
Kirchhoff R, Mow-Lowry CM, Adya VB, Bergmann G, Cooper S, Hanke MM et al. Huddle test measurement of a near Johnson noise limited geophone. Review of scientific instruments. 2017 Nov 21;88(11):115008. doi: 10.1063/1.5000592
Kirchhoff, R. ; Mow-Lowry, C. M. ; Adya, V. B. et al. / Huddle test measurement of a near Johnson noise limited geophone. in: Review of scientific instruments. 2017 ; Jahrgang 88, Nr. 11.
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AU - Mow-Lowry, C. M.

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AU - Bergmann, G.

AU - Cooper, S.

AU - Hanke, M. M.

AU - Koch, P.

AU - Köhlenbeck, S. M.

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AU - Wu, D. S.

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