Open AccessTHE DESIGN AND TESTING OF GEOPHONES AND THEIR AMPLIFIERS.
Author(s) -
Bullard E. C.,
Grant C. Kerr
Publication year - 1938
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1938.tb01758.x
Subject(s) - geophone , electromagnetic coil , voltmeter , amplifier , magnet , electrical engineering , disconnector , ammeter , electromotive force , acoustics , geology , physics , engineering , voltage , circuit breaker , cmos