3M SE-400 user manual Data Addendum

62

Data Addendum

Pressure to free field corrections with BK4936 microphone and remote preamp and windscreen (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
	Pressure Field to
	Free Field
Frequency	Corrections
in Hz	in 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	-0.1
250	0.0
315	0.0
400	0.0
500	0.1
630	0.0
800	-0.1
1000	0.0
1250	0.3
1600	0.2
2000	0.5
2500	0.9
3150	1.4
4000	1.7
5000	2.4
6300	3.1
8000	3.8
10000	5.2
12500	6.2
16000	7.8

Sound Examiner SE-400 Series