3M Version A: QE7052 Microphone User Manual


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Page 41 Linear Operating Range
1/3 Octave Band
053-469 RevC
SoundPro models SE and DL Data Addendum
Table A.44- Octave Band
Testing was performed using an 18pf input adaptor under the following conditions: Reference level 114
dB @ 1 kHz, Reference Range 50 dB to 140 dB, Cal level 394.9 mV for testing level ranges – 20 dB to 70
dB through 50 dB to 140 dB. This represents a nominal sensitivity QE4936 microphone, 34.45 mV for
testing level ranges 60 dB to 150 dB and 70 dB 160 dB this represents a nominal sensitivity QE4110
microphone, 10.29 mV for testing level range 80 dB to 170 dB this represents a nominal sensitivity.
Range -10 dB to 70 dB
Range 0 dB to 80 dB
Frequency
SPL Z Weighting
Linear Operating
Range (dB)
LEQ Z
Weighting
Linear
Operating
Range (dB)
Frequency
SPL Z
Weighting
Linear Operating
Range (dB)
LEQ Z Weighting
Linear Operating
Range (dB)
16 Hz
45
75
41
75
16 Hz
49
85
39
85
31.5 Hz
41
75
40
75
31.5 Hz
40
85
37
85
63 Hz
39
75
35
75
63 Hz
35
85
34
85
125 Hz
31
75
31
75
125 Hz
33
85
31
85
250 Hz
28
75
28
75
250 Hz
28
85
28
85
Range -10 dB to 70 dB
Range 0 dB to 80 dB
Frequency
SPL Z Weighting
Linear Operating
Range (dB)
LEQ Z
Weighting
Linear Operating
Range (dB)
Frequency
SPL Z Weighting
Linear Operating
Range (dB)
LEQ Z Weighting
Linear Operating
Range (dB)
500 Hz
27
75
25
75
500 Hz
25
85
25
85
1 kHz
24
75
22
75
1 kHz
22
85
22
85
2 kHz
22
74
21
74
2 kHz
21
84
21
84
4 kHz
24
74
22
74
4 kHz
22
84
22
84
8 kHz
25
75
25
75
8 kHz
25
85
25
85
16 kHz
28
75
28
75
16 kHz
27
85
27
85
Range 20 dB to 100 dB
Range 30 dB to 110 dB
Frequency
SPL Z
Weighting
Linear
Operating
Range (dB)
LEQ Z Weighting
Linear Operating
Range (dB)
Frequency
SPL Z Weighting
Linear Operating
Range (dB)
LEQ Z Weighting
Linear Operating
Range (dB)
16 Hz
53
105
43
105
16 Hz
34
115
34
115
31.5 Hz
40
105
39
105
31.5 Hz
33
115
33
115
63 Hz
37
105
34
105
63 Hz
33
115
33
115
125 Hz
31
105
31
105
125 Hz
33
115
33
115
250 Hz
28
105
26
105
250 Hz
33
115
33
115
500 Hz
27
105
25
105
500 Hz
33
115
33
115
1 kHz
22
105
22
105
1 kHz
33
115
33
115
2 kHz
21
104
21
104
2 kHz
33
114
33
114
4 kHz
22
104
22
104
4 kHz
33
114
33
114
8 kHz
25
105
25
105
8 kHz
33
115
33
115
16 kHz
27
105
27
105
16 kHz
33
115
33
115
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