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Diagnosis
Parameter manual
b maXX
BM5800
Document No.: 5.16029.03
Baumüller Nürnberg GmbH
694
3.10
3.10.3 Function FFT analyzer
The FFT analyzer function is used to enable the display of the signal in the frequency
range through FFT (Fast Fourier Transformation). Two channels may be operated simul-
taneously. Furthermore, the transmission function between signals can be determined.
The results of the analysis are provided as parameters for further processing. Window
functions (Windowing), Average (average determination) are also provided in this mod-
ule. A signal generator is also integrated for system analysis, which can be fed into the
system by broadband signals, such as white noise, or sine signal generated and through
the parameter interface.
Block diagram of the FFT analyzer function:
Figure 180:
Block diagram FFT analyzer function
5000_1000_rev02.cdr
Output as an
array parameter
(104.21)
Results:
- Spectrum signal 1, signal 2
- Amplitude phase response signal 2/signal 1
- Coherence
Function FFT analyzer
Controller
FFT
Signal
generator
Target Pxxx
(104.6)
Command
(104.1)
Signal
channel 2
Signal
channel 1
Generator
signal
FFT Mode
(104.7)
Configuration:
FFT length(104.9)
FFT windowing (104.10)
Average number setup (104.11)
Configuration
(104.12, 104.13
104.14, 104.22
104.23)
Channel 1,2 Pxxx
(104.3, 104.4)
Axis indexes
(104..5)