High-line eliminator

ADVERTISEMENT
From SEG Wiki
Revision as of 15:05, 6 May 2016 by FuzzyBot (talk | contribs) (FuzzyBot moved page Dictionary:High-line eliminator/en to High-line eliminator/en without leaving a redirect: Part of translatable page "Dictionary:High-line eliminator".)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Other languages:

A part of seismic recording equipment used to attenuate high-line interference. May consist of bridges that balance the voltage across the input transformers with respect to a center tap at ground potential, the assumption being that voltages with respect to ground are noise. Such bridges usually have two adjustments, for the resistive and reactive components of the high-line-induced voltages. High-line interference is also sometimes reduced with a notch filter which removes a narrow band of frequencies around the high-line frequency. See also humbucking.