3M Version A: QE7052 Microphone User Manual


 
Page 9 Self Generated Noise
Octave Band
053-469 RevC
SoundPro models SE and DL Data Addendum
Table A.20- Slow Response and SPL
When using18 pF, 50 Ohm Termination
Z Weighting, Slow Response, and SPL
Range
(dB)
16 Hz
(dB)
31.5 Hz
(dB)
63 Hz
(dB)
125 Hz
(dB)
250 Hz
(dB)
500 Hz
(dB)
1000 Hz
(dB)
2000 Hz
(dB)
4000 Hz
(dB)
8000 Hz
(dB)
16 kHz
(dB)
-10 to 70
30.4
28.1
25.8
22.8
20.0
17.4
15.4
14.4
14.8
16.2
18.4
0 to 80
30.6
27.6
25.3
22.5
19.6
17.4
15.3
14.3
14.6
16.1
18.3
10 to 90
31.2
27.6
25.3
22.4
19.6
17.2
15.2
14.2
14.6
15.8
18.1
20 to 100
30.3
27.8
25.0
22.3
19.8
17.0
15.2
14.3
14.3
17.3
17.3
30 to 110
30.3
28.0
24.7
22.3
19.4
16.1
18.3
21.3
24.3
27.3
27.3
40 to 120
30.3
28.0
25.0
22.2
22.3
25.3
28.3
31.3
34.3
37.3
37.3
50 to 130
30.9
28.3
26.2
29.2
32.3
35.3
38.3
41.3
44.3
47.3
47.3
60 to 140
34.8
33.2
36.2
39.2
42.3
45.3
48.3
51.3
54.3
57.3
57.3
Table A.21- Slow Response and LEQ
When using18 pF, 50 Ohm Termination
Z Weighting, Slow Response, LEQ
Range
(dB)
16 Hz
(dB)
31.5 Hz
(dB)
63 Hz
(dB)
125 Hz
(dB)
250 Hz
(dB)
500 Hz
(dB)
1000 Hz
(dB)
2000 Hz
(dB)
4000 Hz
(dB)
8000 Hz
(dB)
16 kHz
(dB)
-10 to 70
30.7
28.2
25.7
22.9
19.9
17.4
15.4
14.4
14.8
16.2
18.3
0 to 80
30.4
27.8
25.2
22.4
19.7
17.3
15.4
14.3
14.6
16.1
18.3
10 to 90
30.5
27.8
25.1
22.4
19.6
17.2
15.3
14.2
14.6
15.8
18.1
20 to 100
30.5
27.8
25.0
22.3
19.7
17.2
15.2
14.3
14.3
17.3
17.3
30 to 110
30.4
27.7
25.0
22.3
19.5
16.2
18.3
21.3
24.3
27.3
27.3
40 to 120
30.6
27.8
24.9
22.3
22.3
25.3
28.3
31.3
34.3
37.3
37.3
50 to 130
30.8
28.2
26.2
29.2
32.3
35.3
38.3
41.3
44.3
47.3
47.3
60 to 140
34.8
33.2
36.2
39.2
42.3
45.3
48.3
51.3
54.3
57.3
57.3