[SAC-HELP] remove instrument response

[FANG Lihua]

 Hi,

I use SAC to remove the instrument response,
SAC>transfer from polezoro subtype  response.pz to none freqlimits 0.01 0.02 5.0 8.0
the following is the content of response.pz
*******************************

POLES 5
-0.03701+0.03701


-0.03701-0.03701


-1131.00.0000


-1005.00.0000


-502.70.0000
ZEROS 2 
0.00000.0000


0.00000.0000

CONSTANT  ????
*******************************

But I don't know how to calculate the constant.

I got the calibration sheet from Gurapl. The normalization factor at 1Hz is 2304000.
The sensivity is 1500V/m/s. 

I convert the unit from Hz to rad/s and re-calculate the normalization factor:

1500*2304000*(2*pi)^(5-2)=8.5726e+011

I don't know whether I should multiply the AD convert factor of the digitizer or not.
the digitizer is REFTEK 130, and the AD convert factor is 1.588e-06 v/conts.

If I multiply the AD convert factor, I got a new result.

(1.588e-06)*1500*2304000*(2*pi)^(5-2)=1.3613e+006

I want to ask which CONSTANT I shoud use? 8.5726e+011 or 1.3613e+006?

Please help me!




 
 
 
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