Svantek SV 971A - Page 271

SV 971A User Manual – Appendixes
271
Frequency
Compensation filter for
0 deg incidence angle
“Airport”
SA 271A typical
compensated response for
0 deg incidence angle
Compensated Case
Effect for 0 deg
incidence angle
Uncertainty
(IEC 62585:2012)
[Hz]
[dB]
[dB]
[dB]
[dB]
8 913
-0.61
0.03
0.15
0.35
9 173
-0.51
0.04
0.15
0.35
9 441
-0.45
0.49
0.59
0.35
9 716
-0.46
0.54
0.67
0.35
10 000
-0.57
0.62
0.71
0.35
10 292
-0.79
0.14
0.26
0.35
10 593
-1.05
-0.37
-0.21
0.35
10 902
-1.25
-0.52
-0.41
0.35
11 220
-1.21
-1.15
-1.03
0.35
11 548
-0.78
-0.68
-0.60
0.35
11 885
0.11
-0.62
-0.54
0.35
12 232
1.36
0.10
0.15
0.35
12 589
2.75
0.01
0.12
0.35
12 957
4.03
0.17
0.27
0.35
13 335
5.02
-0.39
-0.25
0.35
13 725
5.59
-1.84
-1.75
0.35
14 125
5.66
-2.21
-2.15
0.35
14 538
5.19
-2.39
-2.42
0.35
14 962
4.23
-1.81
-1.92
0.35
15 399
2.86
-2.10
-2.24
0.35
15 849
1.28
-3.70
-3.83
0.35
16 312
-0.28
-5.88
-6.00
0.35
16 788
-1.68
-7.55
-7.65
0.35
17 278
-3.09
-9.58
-9.72
0.35
17 783
-4.90
-11.56
-11.88
0.35
18 302
-7.64
-14.24
-14.67
0.35
18 836
-11.71
-18.49
-19.05
0.35
19 387
-17.18
-24.74
-25.45
0.35
19 953
-22.54
-30.56
-31.17
0.35
Table C.5.10. Free Field corrections for SV 971A with SA 271A (combined: Microphone plus Case Effect) for
the electrostatic actuator
Correction
factors [dB]
Frequency [Hz]
20
25
31.5
40
50
63
80
100
125
160
200
250
315
400
500
630
800
0 deg
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-0.28
-0.35
-0.14
-0.18
-0.04
0.01
90 deg
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.17
0.2
0.08
0.13
0.1
0.17
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
0.25
0.25
0.25
0.25
0.25
Correction
factors [dB]
Frequency [Hz]
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
12500
16000
20000
0 deg
0.05
0.1
0.50
0.65
1.08
1.17
2.27
3.37
4.58
5.54
7.95
9.9
11.18
-6.96
90 deg
0.08
0.1
0.16
0.02
-0.16
-0.15
-0.08
-0.44
0.11
-0.35
0.88
0.76
-2.45
-29.01
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