Observations of geophone spurious resonance

Steve Hearn; Shaun Strong; Andrew Kinmont

doi:10.1080/22020586.2019.12073193

2nd Australasian Exploration Geoscience Conference: Data to Discovery

ISSN: 2202-0586
E-ISSN:

oa Observations of geophone spurious resonance
Authors Steve Hearn^a, Shaun Strong^b and Andrew Kinmont^c
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^a Velseis Pty Ltd and University of Qld, . [email protected] ^b Velseis Pty Ltd, [email protected] ^c Sapiens Innovations, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2019, Issue 2nd Australasian Exploration Geoscience Conference: Data to Discovery, Dec 2019, p. 1 - 5
DOI: https://doi.org/10.1080/22020586.2019.12073193
- Published online: 01 Dec 2019

Abstract

Summary

A detailed understanding of the frequency response of geophones is critical for the design and quality control of broadband seismic surveys. We illustrate a pragmatic methodology for accurate identification of geophone spurious resonances. We include tap-test examples from conventional 10 Hz geophones, and from 5 Hz and 10 Hz high-output nodal sensors. High-frequency noise sources, including high-voltage harmonics can interfere with the accurate identification of the spurious events. This problem can be overcome by subtraction of matched noise spectra

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2019-12-01

2026-01-13

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References

Boll S.F.,1979, Suppression of acoustic noise in speech using spectral subtraction: IEEE Acoustics, Speech and Signal Proc., 27, 113-120.
Chen S. J., and Dalton, C., 1983, Theoretical and experimental approaches to the geophone spurious frequency: Geophysical Prospecting, 31, 574-590.
Erturk, M., Bottomley, P., and El-Sharkawy, A., 2013, Denoising MRI Using Spectral Subtraction: IEEE, Biomedical Engineering., 60, 1556-1562.
Faber, K., and Maxwell, P., 1997, Geophone spurious frequency: What is it and how does it affect seismic data quality: Canadian J. Exploration Geophysics, 33, 46-54.

/content/journals/10.1080/22020586.2019.12073193

Article Type: Research Article

Keyword(s): broadband; geophone; resonance; spurious frequency

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