Measurement Of Frequency Spectra - Parker Compax3 Operating Instructions Manual

Setting up Compax3
Measurement of the spectral analysis
System S
Interpretation of the frequency spectrum
256
4.4.9.5

Measurement of frequency spectra

In this chapter you can read about:
Functionality of the measurement .................................................................................. 256
Leak effect and windowing ............................................................................................ 257
Please note that you require a license key (see on page 251, see on page 249)
Functionality of the measurement
Controller & Signal Pocessing
Steuerung & Signal-
Verarbeitung
Signal u(t)
1
During the spectral analysis of scanned signals with the aid of the discrete Fourier
transformation, a so-called frequency resolution (Df) results, Df being =fA/N,
independently of the scanning frequency (fA) and of the number of measurement
values used (N).
The spectra of scanned signals are only defined for frequencies, which are an
integer multiple of this frequency resolution.
192-120113 N08 C3I12T11 - December 2010
for this application!
Upload
C3-Software-
Oscilloscope
System S
2
C3I12T11
Amplitude spectrum
V(f)
Amplitudenspektrum