VB.net equivilant of AmpPhaseSpectrum

[Noja]

Is there an equivalent to the following c method for DaqMX in VB.net?:

CWDSP.AmpPhaseSpectrum x, Unwrap, dt, AmpSpectrum, PhaseSpectrum, df

[Caroline Bright]

Hello Noja,

There is an equivalent in VB.NET but you must have Measurement Studio Enterprise edition to use it. The function is:

NationalInstruments.Analysis.SpectralMeasurements.Measurements.AmplitudePhaseSpectrum

You can find more information on Measurement Studio and the included functions at:
http://www.ni.com/mstudio/compare_vb_net.htm

Thanks,
Caroline
National Instruments

[Noja]

Is there a way (or a different function) that will return the amplitude spectrum in Volts...not Volts RMS? If not, what happed to all the array functions like Mularray in nationalinstruments.analysis.math.arrayoperation?

[Caroline Bright]

Hello Noja,

There is no other amplitude phase spectrum function that will return the value only in volts. However, you can find the mulArray in NationalInstruments.Analysis.Math.LinearAlgebra.Multiply(double[], double[])

Thanks,
Caroline
National Instruments

[Noja]

In that case, would I be correct in assuming that to get my spectrum in volts i would multiply every element in the output array from AmplitudePhaseSpectrum() by 2/sqrt(2) except for the first element of the array (which is the DC component)?

[Caroline Bright]

Hi Noja,

Can you maybe give me more information about what you are trying to do overall so that I can better help you find the solution to your problem? Where are you getting your data from? What type of data is it? Is it an array of volts for example? What is you original data and what are you trying to accomplish? These answers will help us find the best solution for your problem.

Thanks,
Caroline
National Instruments