Symbol
Parameter
Nominal Values
(120 s model)
Nominal Values
(20 s model)
Units
z
n
Zeros
0
0
-392
-1960
-1490 ±1740i
0
0
-392
-1960
-1490 ±1740i
rad/s
p
n
Poles
–0.03691
±0.03702i
–343
-370 ±467i
-836 ±1522i
-4900 ±4700i
-6900
-15000
–0.2214 ±0.2221i
–343
-370 ±467i
-836 ±1522i
-4900 ±4700i
-6900
-15000
rad/s
k
Normalization factor
4.34493 ×10
17
4.34491 ×10
17
(rad/s)
5
f
0
Normalization frequency
1
1
Hz
s
Ground motion sensitivity
at
f
0
754.3
753.1
V•s/m
Table 10-1 -
Ground motion response nominal parameters for 120 s and 20 s models
The seismometer module sensitivity (
s
), poles (
p
n
), and zeros (
z
n
) define the transfer function
according to this equation:
(EQ1)
Where the normalization factor (
k
) is defined by
(EQ2)
and is given for informational purposes only.
Chapter 10 - Performance
16889R10 • 2020-11-12
Page 74
