Open AccessNew possibilities in controlled‐source seismology with a magnetic levitation vibrator
Author(s) -
Unger R.,
Kampen W.A.,
Berkhout A.J.,
Boiten R.G.,
Ziolkowski A.M.,
Ritsema A.R.,
Schmidt D.Ph.
Publication year - 1987
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1987.tb04385.x
Subject(s) - seismology , geology , vertical seismic profile , levitation , acoustics , geophone , seismic noise , seismic interferometry , microseism , geophysics , signal (programming language) , frequency band , physics , computer science , telecommunications , electrical engineering , engineering , optics , bandwidth (computing) , interferometry , magnet , programming language
Summary. A new‐technology, broad‐band seismic land source based on the principle of magnetic levitation is under development. The new source is designed to overcome limitations experienced with controlled‐signal seismic sources at the present time, and to create new possibilities. In particular, She new source extends the constant peak force frequency band down to 2 Hz, and is capable of at least several weeks continuous, coherent transmission. It will enable three‐dimensional long‐range (>200 km) controlled‐signal seismology with the potential for active earth tomography down into the mantle and systematic earthquake precursor measurement, and should improve shallow and deep seismic profiling technology. The optimum transmission frequencies depend on Q, transmission range, and noise spectrum.