3M Version A: QE7052, BK4936 manual Figure F.11 Pressure Field to Free Field, Table F.13 Broadband

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Microphones

BK4936 microphone (Figures/Tables “F”)

Figure F.11 - Pressure Field to Free Field

		QE-4150
Frequency		Correction
in Hz		in dB
125	-0.03
250	0.00
1000	-0.22
2000	0.17
4000	0.71

Figure F.12 - Pressure Field to Random Incidence

		QE-4150
Frequency		Correction
in Hz		in dB
125	-0.02
250	0.00
1000	-0.04
2000	0.18
4000	-0.07

Self Generated Noise

Table F.13 - Broadband

		SPL			LEQ
			Fast Response
Range
(dB)	A Weighting	C Weighting	Z Weighting	A Weighting	C Weighting	Z Weighting
-20 to 70	22.9	30.1	37.4	22.8	30.1	37.0
-10 to 80	22.8	29.8	37.1	22.8	30.3	37.2
0 to 90	22.8	30.2	36.6	22.8	30.2	37.3
10 to 100	22.8	30.0	36.6	22.8	30.2	37.6
20 to 110	23.3	30.3	36.5	23.3	30.5	37.5
30 to 120	26.2	31.4	36.8	26.2	31.1	37.1
40 to 130	33.3	34.4	38.2	33.4	34.6	38.9
50 to 140	42.1	42.1	43.1	42.1	42.2	42.8
			Slow Response
Range
(dB)	A Weighting	C Weighting	Z Weighting	A Weighting	C Weighting	Z Weighting
-20 to 70	22.8	30.3	37.4	22.8	30.3	37.7
-10 to 80	22.8	30.3	37.4	22.7	30.3	37.7
0 to 90	22.8	30.2	37.5	22.8	30.2	37.5
10 to 100	22.8	30.2	37.9	22.7	30.2	37.6
20 to 110	23.3	30.2	37.5	23.3	30.3	37.3
30 to 120	26.2	31.0	37.6	26.2	31.0	37.9
40 to 130	33.4	34.6	38.6	33.4	34.6	38.5
50 to 140	42.2	42.1	43.0	42.2	42.1	42.9

053-469 RevC

SoundPro models SE and DL Data Addendum