3M BK4936 Microphone User Manual


 
Page ii
053-469 RevC
SoundPro models SE and DL Data Addendum
Table A.33- Z Weighting, Fast Response and LEQ ______________________________________________________ 21
Table A.34- Z Weighting, Slow Response and SPL ______________________________________________________ 22
Table A.35- Z Weighting, Slow Response and LEQ _____________________________________________________ 23
Linear Operating Range ________________________________________________________________ 25
Table A.40- Broad Band with A-Weighting ____________________________________________________________ 25
Table A.41- Broad Band C Weighting ________________________________________________________________ 30
Table A.42- Broad Band with Z-Weighting ____________________________________________________________ 36
Table A.44- Octave Band __________________________________________________________________________ 41
Table A.45- One-Third Octave Band _________________________________________________________________ 44
Peak C ______________________________________________________________________________ 50
Table A.46- Peak C Level Range ____________________________________________________________________ 50
Microphones _________________________________________________________________________ 50
QE7052 microphone (Figures/Tables “B”) ______________________________________________________ 51
Directional frequency response using side toward speaker _________________________________ 51
Figure B.1 - 0-30 degree incidence angles _____________________________________________________________ 51
Figure B.2 - 0-90 degree incidence angles _____________________________________________________________ 52
Figure B.3 - 0-150 degree incidence angles ____________________________________________________________ 53
Figure B.4 - 0-180 degree incidence angles ____________________________________________________________ 54
Directional frequency response with mounted face toward speaker ________________________ 55
Figure B.5 -0-30-degree incidence angles _____________________________________________________________ 55
Figure B.6 - 0-90-degree incidence angles _____________________________________________________________ 56
Figure B.7 - 0-150-degree incidence angles ____________________________________________________________ 57
Figure B.8 - 0-180-degree incidence angles ____________________________________________________________ 58
Random Incidence ____________________________________________________________________________ 59
Figure B.9 - Frequency Response ____________________________________________________________________ 59
Corrections ____________________________________________________________________________________ 60
Table B.10 Reflection, Diffraction, and Microphone Frequency Response ____________________________________ 60
Table B.11 - Pressure Field to Free Field Corrections ___________________________________________________ 61
Table B.12 - Pressure Field to Random Incidence Corrections _____________________________________________ 61
Self Generated Noise __________________________________________________________________________ 61
Table B.13- Broadband ____________________________________________________________________________ 61
Table B.14 - Octave Band __________________________________________________________________________ 62
Table B.15- 1/3 Octave Band _______________________________________________________________________ 65
QE7052 microphone with windscreen (Figures/Tables “C”) _______________________________________ 71
Directional frequency response using side toward speaker _________________________________ 71
Figure C.1- 0-30 degree incidence angles _____________________________________________________________ 71
Figure C.2 - 0-90 degree incidence angles _____________________________________________________________ 72
Figure C.3- 0-150 degree incidence angles ____________________________________________________________ 73
Figure C.4 - 0-180 degree incidence angles ____________________________________________________________ 74
Directional frequency response using windscreen & face toward speaker _________________ 75
Figure C.5 - 0-30 degree incidence angles _____________________________________________________________ 75
Figure C.6- 0-90 degree incidence angles _____________________________________________________________ 76
Figure C.7 - 0-150 degree incidence angles ____________________________________________________________ 77
Figure C.8- 0-180 degree __________________________________________________________________________ 78
Random Incidence ____________________________________________________________________________ 79
Figure C.9 - Frequency Response ____________________________________________________________________ 79
Corrections ____________________________________________________________________________________ 80
Table C.10- Reflection, Diffraction, and Local Microphone Frequency Response ______________________________ 80
Table C.11- Reflection, Diffraction, Microphone Frequency Response, and Windscreen Corrections _______________ 81