BRUEL & KJAER 4184-A, Техническая документация инструкция, Страница: 33 / 52

APPENDIX A
Tables
27
Nominal Exact Microphone Electrical Acoustical Expanded
Frequency Frequency Diffuse-field Response Response Uncertainty
(6 digits) Response
Hz Hz dB dB dB dB
9500 9440.61 –2.73 3.00 0.27 0.57
10000 10000 –3.21 3.00 –0.21 0.59
10600 10592.5 –3.12 3.00 –0.11 0.87
11200 11220.2 –2.71 3.01 0.30 0.88
11800 11885.0 –3.01 3.01 0.00 0.89
12500 12589.3 –2.79 3.01 0.23 0.91
13200 13335.2 –3.14 3.02 –0.12 0.92
14000 14125.4 –3.73 3.02 –0.71 0.94
15000 14962.4 –4.32 3.03 –1.30 0.95
16000 15848.9 –4.58 3.03 –1.55 0.97
17000 16788.0 –5.62 3.03 –2.59 0.98
18000 17782.8 –7.09 3.04 –4.06 0.99
19000 18836.5 –8.04 3.04 –5.00 1.01
20000 19952.6 –8.80 3.03 –5.77 1.02
21200 21134.9 –9.76 3.02 –6.74 1.03
22400 22387.2 –11.19 2.98 –8.21 1.04
Table A.9 Weatherproof Microphone Unit Type 4184-A is not specified together with Outdoor Microphone Kit
UA-1404
A.4 Free-field Frequency Responses for Diffuse-field Calibrated
Instruments
Free-field frequency response in the reference direction for diffuse-field calibrated instruments according to
IEC 60651 and IEC 60804. Measured with plane progressive sinusoidal sound waves incident from the
reference direction and the instrument’s
Sound Field Correction parameter set to Diffuse-field .
Table A.10 Free-field reference direction frequency response with the Sound Field Correction parameter set to
Diffuse-field for the configurations for which there are specified normal Free-field responses
Nominal Exact Configuration Configuration
Frequency Frequency as in as in
(6 digits) Table A.4a Table A.4b
Hz Hz dB dB
63 63.0957 0.08 0.08
80 79.4328 –0.17 –0.17
100 100 –0.10 –0.10
125 125.893 0.02 0.02
160 158.489 –0.13 –0.13
200 199.526 –0.04 –0.04
250 251.189 0.00 0.00
315 316.228 0.00 –0.06
400 398.107 –0.02 –0.13
500 501.187 0.09 –0.11
630 630.957 0.10 –0.05
800 794.328 0.13 0.08
1000 1000 0.23 0.10
1060 1059.25 0.27 0.09
1120 1122.02 0.30 0.09
1180 1188.50 0.28 0.05
1250 1258.93 0.23 –0.01
1320 1333.52 0.19 –0.08
1400 1412.54 0.16 –0.18
1500 1496.24 0.14 –0.27
1600 1584.89 0.13 –0.31
1700 1678.80 0.12 –0.26
1800 1778.28 0.14 –0.18