3M SE-400 user manual BK4936 microphone

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Data Addendum

Pressure to free field corrections with BK4936 microphone (sections: 5.2.8, 9.2.7d)

Note: add to pressure response to get 0⁰incidence free-field response. B&K 4226 calibrator may be used to determine the pressure field response.

	BK4936 microphone
	PressureField to
	Free Field
Frequency	Corctions
in Hz	n dB
32	0.1
40	0.0
50	-0.1
63	-0.1
80	-0.1
100	-0.1
125	-0.1
160	-0.1
200	-0.2
250	-0.1
315	0.0
400	0.1
500	0.2
630	0.1
800	0.0
1000	0.0
1250	0.0
1600	0.2
2000	0.4
2500	0.5
3150	0.8
4000	1.6
5000	2.1
6300	3.1
8000	3.9
10000	5.3
12500	6.2
16000	8.4

Sound Examiner SE-400 Series