Soft-db Opus Suite Data Logger Module Bedienungsanleitung PDF herunterladen (Seite 61)

Frequency (Hz)

Saturation Level

(dB)

Minimum Linear

Level (dB)

Linear Dynamic

Range (dB)

Noise Floor (dB)

10000

132.5 33.5 99.0

23.5

12500

132.5 34.1 98.4

25.2

16000

132.5 35.8 96.7

27.3

20000

132.5 37.1 95.4

27.7

1/3 Octave Filter Summation

For this test, sine waves from 20 Hz to 20 kHz are measured with the Concerto system. For each sine

wave the summation of the 1/3 octave filters is computed to form the following curves. The sine

waves are electrical signals at 1 VRMS. The next figures present the results for both input range.

Summation Test (Low Range Case)

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

100 1000 10000 100000

Frequency (Hz)

Amplitude dB

1 2 ... 56 57 58 59 60 61 62

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Soft-db Opus Suite Data Logger Module Bedienungsanleitung Seite 61