Due
to our effort to maintain our position as the world leading supplier to
the impeller market, we have in early 2007 invested in a new frequency
multi analyzer.
The analyzer is a Brüel & Kjær type
3560-B-110 FFT (Fast Fourier Transformation) analyzer equipped with a
B&K PULSE Multi-analyzer system (FFT and CPB (Constant
percentage bandwidth in 1/n octave bands)).
With this type of analyzer we will, among other things, be able to
measure sound spectra (CPB in 1/n octave bands) faster, more efficient
and precise than before.
Because the analyzer is a multi analyzer it will also be used to check
and measure vibration levels.
Together with the analyzer we have invested in an impact hammer in
order to determine resonance frequencies for both the blades and
assemblies. This applies for both plastic and aluminium.
The analyzer will mainly be used in our wind tunnel where it will be
used for research in order to constant improve our sound data. This
will finally also satisfy our costumers demand for sound spectra.
