Svantek SV 977D - Page 327

327
SV 977D User Manual - Appendixes
Frequency
MK 255 typical
Free Field
response
Frequency
MK 255 typical
Free Field
response
Frequency
MK 255 typical
Free Field
response
[Hz]
[dB]
[Hz]
[dB]
[Hz]
[dB]
501
-0.10
2 175
-0.39
9 441
-3.54
516
-0.13
2 239
-0.40
9 716
-3.59
531
-0.15
2 304
-0.54
10 000
-3.77
546
-0.10
2 371
-0.53
10 292
-3.86
562
-0.09
2 441
-0.59
10 593
-3.90
579
-0.13
2 512
-0.71
10 902
-3.99
596
-0.15
2 585
-0.74
11 220
-4.19
613
-0.12
2 661
-0.69
11 548
-4.15
631
-0.10
2 738
-0.73
11 885
-4.34
649
-0.12
2 818
-0.74
12 232
-4.28
668
-0.15
2 901
-0.81
12 589
-4.54
688
-0.14
2 985
-0.86
12 957
-4.56
708
-0.13
3 073
-0.84
13 335
-4.85
729
-0.14
3 162
-0.90
13 725
-4.80
750
-0.14
3 255
-0.95
14 125
-5.04
772
-0.13
3 350
-1.01
14 538
-4.94
794
-0.13
3 447
-1.08
14 962
-5.12
818
-0.12
3 548
-1.14
15 399
-5.26
841
-0.13
3 652
-1.16
15 849
-5.29
866
-0.14
3 758
-1.23
16 312
-5.66
891
-0.11
3 868
-1.31
16 788
-5.85
917
-0.10
3 981
-1.32
17 278
-6.17
944
-0.07
4 097
-1.30
17 783
-6.33
972
-0.10
4 217
-1.41
18 302
-6.53
1 000
-0.09
4 340
-1.46
18 836
-6.53
1 029
-0.05
4 467
-1.48
19 387
-7.07
1 059
-0.08
4 597
-1.60
19 953
-7.10
Table C.7.5. MK 255 Free Field corrections for 90 deg incidence angle with the use of the electrostatic
actuator
[dB]
Frequency [Hz]
20
25
31.5
40
50
63
80
100
125
160
200
250
315
400
500
630
800
Correction
factors
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-0.05
-0.12
-0.17
-0.16
-0.14
Uncertainty
(IEC 62585)
--
--
--
--
--
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
[dB]
Frequency [Hz]
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
12500
16000
20000
Correction
factors
-0.09
-0.18
-0.23
-0.17
-0.20
-0.10
0.16
0.35
0.56
1.12
1.68
2.71
3.76
4.71
Uncertainty
(IEC 62585)
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.35
0.35
0.35
0.35
0.50
0.50
0.50