直結式電磁地震計の特性に関する田治米の表現式について

抄録

A complete expression of dynamical characteristics for electromagnetic seismographs with no electric amplifier has been derived by Tazime. In this paper the same expression is deduced in another way, which is more familiar to seismologists. The method is conducive to easy understanding of physical meanings of the expression. Further, the expression is reduced to one of practical convenience. The new expression is written in terms of usual constants for galvanometer, i. e., period, coil resistance, critical damping resistance, and sensitivity.