3M SE-401 - Page 74

Data Addendum
Sound Examiner SE-400 Series
67
Pressure to random incidence corrections with BK4936 microphone (section 5.2.7)
Note: added to the pressure response to calculate random incidence response.
Frequency
in Hz
BK4936 microphone
Random Incidence
Corrections
in dB
32
0.3
40
0.3
50
0.2
63
0.1
80
0.0
100
0.0
125
0.1
160
0.0
200
0.0
250
0.1
315
0.0
400
0.1
500
0.0
630
0.1
800
0.2
1000
0.0
1250
0.2
1600
-0.3
2000
0.1
2500
0.2
3150
0.3
4000
0.4
5000
0.8
6300
1.2
8000
1.3
10000
2.2
12500
2.4
16000
3.6