BRUEL & KJAER 2203 - Page 45

100~~------~----~----~----~----~----~------~
90
80
70
60
50
40
30
20
10
20 50
I With Microphone
II Noise
Ill With dummy
100 200
500 1000 2000
Fig. 5. 11 b Effect of vibration
5000 Hz
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