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Using of Module weighting

Hello,

 

I would like to calculate a global weighted acceleration value from spectrum.

From time series, I apply a Data window (hanning) and then a FFT (Real FFT of a real Signal). I try to apply a weighting (block Measurement weighting) with" a weighted by table of reference points"... but I don't manage to create a correct table of reference points (file .dpf with my coefficient).  I understood the structure file is the following :

INTERPOLATION
One channel
2
8192
<EOF>

But I have an error message when I start my measurement (Incorrect coefficient file). Could you please indicate me how can I do ? Could you send me an .dpf example file ? For information, my FFT has 8192 lines.

 

In advance, thank you very much.

 

Best regards.

 

Florent

 

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INTERPOLATION
testskal.dpf
2
9
0.0 0.0
190.0 0.0
200.0 10.0
250.0 50.0
500.0 100.0
750.0 50.0
800.0 10.0
810.0 0.0
2048.0 0.0
EOF

 

Blocks entirely filled with values equal to 1.0 are weighted by the shown reference point file ( >>> picture).

 

weighting.jpg

M.Sc. Holger Wons | measX GmbH&Co. KG, Mönchengladbach, Germany | DASYLab, DIAdem, LabView --- Support, Projects, Training | Platinum NI Alliance Partner | www.measx.com
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