Svantek SV 973 - Page 155

SVAN 973 User Manual – Appendixes
155
Frequency
ST 973 Free Field
response
SV 973 Free Field
compensated
response
Compensated
Case Effect
Uncertainty
(IEC 62585:2012)
[Hz]
[dB]
[dB]
[dB]
[dB]
4340
-4.34
-0.76
3.58
0.35
4467
-4.16
-0.39
3.78
0.35
4597
-4.63
-0.65
3.98
0.35
4732
-4.56
-0.66
3.90
0.35
4870
-4.77
-0.61
4.15
0.35
5012
-5.11
-0.83
4.28
0.35
5158
-5.21
-0.74
4.47
0.35
5309
-4.97
-0.75
4.22
0.35
5464
-5.17
-0.72
4.45
0.35
5623
-5.40
-1.12
4.28
0.35
5788
-5.70
-1.49
4.20
0.35
5957
-5.80
-1.62
4.18
0.35
6131
-5.41
-1.29
4.12
0.35
6310
-4.66
-0.92
3.74
0.35
6494
-5.18
-1.11
4.07
0.35
6683
-5.20
-1.30
3.90
0.35
6879
-5.44
-1.59
3.85
0.35
7079
-5.04
-1.43
3.61
0.35
7286
-5.62
-1.95
3.67
0.35
7499
-5.40
-1.95
3.45
0.35
7718
-5.07
-1.87
3.20
0.35
7943
-4.44
-1.10
3.33
0.35
8175
-4.51
-1.59
2.92
0.35
8414
-4.61
-1.80
2.81
0.35
8660
-4.08
-1.60
2.48
0.35
8913
-4.14
-1.67
2.47
0.35
9173
-4.06
-2.00
2.07
0.35
9441
-3.77
-1.48
2.30
0.35
9716
-3.28
-1.49
1.80
0.35
10000
-3.19
-1.56
1.62
0.35
Table C.5 SV 973 combined free field corrections (ST 973 + Compensated Case Effect) with the use of the
Bruel & Kjaer 4226 sound calibrator
[dB]
Frequency [Hz]
31.5
63
125
250
500
1000
2000
4000
8000
SV 973
Free Field
corrections
0.00
0.00
0.00
0.00
0.00
0.00
0.75
4.45
7.40
Uncertainty
(IEC 62585:2012)
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.49