Parameter OrdAFFiltRecalc for function ChnOrdAFCalc

[DaSebse]

Hi there,

can s.o. explain me the meaning of the parameter "OrdAFFiltRecalc" for the function "ChnOrdAFCalc", please?

Thanks a lot!

[Johann.Wagner]

Hi,

you find all in the Diadem help when searching to these commands

or looking in that links for additional issues ("Order Analyses")

http://forums.ni.com/ni/board/message?board.id=60&message.id=8298&requireLogin=False

http://forums.ni.com/ni/board/message?board.id=60&message.id=6481&requireLogin=False

Best Regards

Johann

[DaSebse]

I read the DIAdem help and the threads. And I understand most of the parameters for the Order Analysis, but what does this special parameter affect?

In the help they mention "filter coefficients that are recalculated", but what filter coefficients must be recalculated during an order analysis?

Why should this parameter have another value than OrdRevolStep, because it doesn't make sense to calculate sth. at other points than the ones specified by OrdRevolStep?

[Johann.Wagner]

it makes sense that the when look in http://de.wikipedia.org/wiki/Ordnungsanalyse

you see the "fixed rotation speed" for calculating analyses - therefore it´s necessary to actualize the coeffizients when speed changes and (fixed speed is very short -> coeffizient must calculate very often).

The resolution of analyses is calculating with OrdRevStep and you are right that this can be the same but you can also say you want do actualizise later the coeffizients than you need a second parameter for these settings. Therefore the 2 parameters instead of only OrdRevStep...

Best Regards