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SVANTEK 977W User Manual
11.2.2. Setting the parameters of 1/1 Octave and 1/3 Octave analysis - Spectrum
For active
1/1 Octave
or
1/3 Octave
functions a context element (
Spectrum
)
appears on the
Measurement
list (
path:
<Menu> / Measurement / Spectrum)
. In the
Spectrum
window the user can select the
band and the pre-weighting broadband
frequency filter (only in case of sound
measurements).
<ENT>
Selection of the band
The
Band
position defines the applied band of
1/1 Octave
or
1/3 Octave
analysis.
Available bands of the sound analysis are
as follows:
-
1/1 Octave
:
o
Audio (31.5-16k)
- 10 filters with
centre
frequencies
31.5 Hz
÷16 kHz,
=>
o
Ultra (1-31.5k)
- 16 filters with
centre frequencies 1
Hz ÷31.5 kHz;
=>
-
1/3 Octave
:
o
Audio (20-20k)
- 31 filters with
centre frequencies 20
Hz ÷20 kHz,
=>
o
Ultra (0.8-40k)
- 48 filters with
centre frequencies 0.8
Hz ÷40 kHz.
=>
Available bands of the vibration analysis are
as follows:
-
1/1 Octave
:
o
Full (1-16k)
- 15 filters with centre
frequencies 1
Hz ÷16 kHz,
=>
