Svantek SV 971A - Page 213

SV 971A User Manual – Appendixes
213
Table C.1.6. ACO 7152 Free Field correction for the electrostatic actuator and 0 deg incidence angle
[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
0.06
0.05
0.04
0.04
0.04
0.06
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
[dB]
Frequency [Hz]
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
12500
16000
20000
Correction
factors
0.11
0.16
0.23
0.28
0.44
0.63
0.91
1.35
1.96
2.95
4.22
5.87
8.38
11.60
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
Preamplifier
SV 18A nominal preamplifier attenuation: 1.0 dB;
Power supply 2.5 mA@ 11 V /-7.5V