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| Titel |
Extending a Lippmann style seismometer's dynamic range by using a non-linear feedback circuit |
| VerfasserIn |
Giovanni Romeo, Giuseppe Spinelli |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250079059
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| Zusammenfassung |
| A Lippmann style seismometer uses a single-coil velocity-feedback method in order to extend toward lower frequencies a geophone’s frequency response. Strong seismic signals may saturate the electronics, sometimes producing a characteristic whale-shaped recording.
Adding a non linear feedback in the electronic circuit may avoid saturation, allowing the strong-motion use of the seismometer without affecting the usual performance. We show results from both
simulations and experiments, using a Teledyne Geotech s13
as a mechanical part. |
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