Guralp Systems CMG-5T - Manual (Page 20)

CMG-5T
In this equation zn are the roots of the numerator polynomial, giving the
zeros of the transfer function, and pm are the roots of the denominator
polynomial giving the poles of the transfer function.
In the calibration pack, G is the sensitivity given for each component on
the first page, whilst the roots z
n
and p
m
, together with the normalising
factor A, are given in the Poles and Zeros table. The poles and zeros given
are measured directly at Güralp Systems' factory using a spectrum
analyser. Transfer functions for the vertical and horizontal sensors may be
provided separately.
20 Issue E