Ac Output; Microphone; Directivity - CESVA SC-20c Manual Del Usuario

10.4 AC output

Frequency weighting :
Sensitivity at 137 dB and 1 kHz:
Upper limit:
Output Impedance:

10.5 Microphone

C-130
½ " condenser microphone
Polarization:
Nominal capacitance:
Nominal sensitivity:
Effect of windscreen:
Frequency (Hz)
31.5
63
125
250
500
1000

10.6 Directivity

1,000 - 2,000
2,000 - 4,000
4,000 - 8,000
8,000 -12,500
Constant pressure to free field correction
Correction (dB)
-0.1
-0.1
0.0
0.0
0.0
0.1
Variation of the sensitivity at 30º and 90º
(see appendix 1):
Frequency
30° (dB)
(Hz)
40 - 1,000
42
200 V
22.5 pF
17.5 mV/Pa ± 0.5 dB under the
< 1 dB for frequencies < 10 kHz
< 3 dB for frequencies < 12.5 kHz
Frequency (Hz)
2,000
4,000
8,000
12,500
16,000
90° (dB)
0.1 0.2
0.3 0.4
0.3 0.4
1.0 2.0
1.4 5.7
linear
3.8 Vrms (typical)
4.5 Vrms (typical)
300 Ω
reference conditions
Correction (dB)
0.3
1.2
3.2
6.3
8.8