Component
|
Stream
identifier
|
Sensitivity
|
Unit
|
---|---|---|---|
OBH T1023: | |||
Velocity channels (24-bit resolution): | |||
Vertical | D003Z6 | 2.015424E+09 | Counts/m/s |
North-south | D003N6 | 2.070694E+09 | Counts/m/s |
East-west | D003E6 | 2.044987E+09 | Counts/m/s |
Acceleration channels (16-bit resolution): | |||
Vertical | D003M8 | 1.198741E+07 | Counts/m/s2 |
North-south | D003M9 | 1.229458E+07 | Counts/m/s2 |
East-west | D003MA | 1.250960E+07 | Counts/m/s2 |
Temperature: | D003ME | 77.700078 | Counts/K |
OBH T1038: | |||
Velocity channels (24-bit resolution): | |||
Vertical | D417Z6 | 2.032134E+09 | Counts/m/s |
North-south | D417N6 | 2.052699E+09 | Counts/m/s |
East-west | D417E6 | 2.038560E+09 | Counts/m/s |
Acceleration channels (16-bit resolution): | |||
Vertical | D417M8 | 1.219381E+07 | Counts/m/s2 |
North-south | D417M9 | 1.297704E+07 | Counts/m/s2 |
East-west | D417MA | 1.290025E+07 | Counts/m/s2 |
Temperature: | D417ME | 77.700078 | Counts/K |
Note: velocity (V) for a digital sample (x) is given as (in terms of Laplace variable [s])
V(s) = [G x A x H(s)] x,
where
G = velocity output sensitivity as listed above.
A = normalizing factor to make the magnitude of A x
H(s) unity. For
the Leg 195 OBHs, A = -45.63 at 1Hz.
H(s) = the
transfer function in factored form.
zn are the roots of the numerator polynomial, giving the zeroes of the transfer function, and pn are the roots of the denominator polynomial giving the poles of the transfer function. The poles and zeroes for the CMG1Ts for all the velocity channels are as follows:
Poles
(Hz) |
Zeroes
(Hz) |
---|---|
-1.964E-03 ± 1.964E-03 j | 0 |
-80 ± 30 j | 0 |
160 |