Svantek SV 977D - Page 249

249
SV 977D User Manual - Appendixes
Table C.1.6. SV 977D combined Free Field correction with the use of the electrostatic actuator for 0 deg
incidence angle (microphone corrections + Case Effect)
[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
-0.05
0.0
-0.03
-0.07
-0.17
-0.10
Complex
uncertainty
--
--
--
--
--
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
[dB]
Frequency [Hz]
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
12500
16000
20000
Correction
factors
0.13
0.21
-0.30
0.29
-0.07
0.68
0.97
1.46
2.48
3.40
5.21
6.89
9.22
11.82
Complex
uncertainty
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.49
0.49
0.49
0.49
0.61
0.61
0.61
SV 977D directional characteristics
Directional response of SV 977D with the MK 255 microphone and SV 12L preamplifier for specified
frequencies.
Combined typical directional characteristics