Svantek SVAN 979, User Manual

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341
SVAN 979 User Manual - Appendixes
f [Hz]
SA 279 Case effect
for 90 deg incidence
angle
Compensation filter
“Environmental”
Compensated case effect
for 90 deg incidence angle
(Environmental)
6300,0 -2,62 2,75 0,13
8000,0
-2,03 2,13 0,10
10000,0 -2,33 2,16 -0,17
12500,0 -4,61 3,31 -1,30
16000,0 -8,56 2,78 -5,78
20000,0 -16,77 0,93 -15,84
Linear Operating Ranges with the Airport filter
Table C.7.7 Self-generated noise for different weighting filters
Electrical *) Acoustical compensated
Weighting filter
Range
A C Z A C Z
Low < 14 dB < 14 dB < 21 dB < 15 dB < 15 dB < 23 dB
High < 21 dB < 21 dB < 31 dB < 23 dB < 23 dB < 33 dB
*) measured with the ST 02 microphone equivalent impedance 18 pF +/-10%
Table C.7.8 Linear operating range:
“LOW” with the
Airport filter for the sinusoidal signal and microphone
sensitivity 50 mV/Pa
[dB]
L
AS/F
L
BS/F
L
CS/F
L
ZS/F
L
AeqT
L
BeqT
L
CeqT
L
AE
L
Cpeak
(t
int
= 2 s)
from to from to from to from to from to from to From to from to from to
31,5 Hz 25 80 25 103 25 117 41 120 25 80 25 103 25 117 28 83 50 120
500
Hz
25 116 25 119 25 120 41 120 25 116 25 119 25 120 28 119 50 123
1 kHz
25 120 25 120 25 120 41 120 25 120 25 120 25 120 28 123 50 123
4 kHz 25 121 25 119 25 119 41 120 25 121 25 119 25 119 28 124 50 122
8 kHz
25 119 25 117 25 117 41 120 25 119 25 117 25 117 28 122 50 120
12.5
kHz
25 115 25 114 25 114 41 120 25 115 25 114 25 114 28 118 50 117
Table C.7.9 Linear operating range:
“HIGH” with the
Airport filter for the sinusoidal signal and microphone
sensitivity 50 mV/Pa
[dB]
L
AS/F
L
BS/F
L
CS/F
L
ZS/F
L
AeqT
L
BeqT
L
CeqT
L
AE
L
Cpeak
(t
int
= 2 s)
from to from to from to from to from to from to from to from to from to
31,5 Hz
33 97 33 120 33 134 43 137 33 97 33 120 33 134 36 100 70 137
500
Hz
33 133 33 136 33 137 43 137 33 133 33 136 33 137 36 136 70 140
1 kHz
33 137 33 137 33 137 43 137 33 137 33 137 33 137 36 140 70 140
4 kHz 33 138 33 136 33 136 43 137 33 138 33 136 33 136 36 141 70 139
8 kHz
33 136 33 134 33 134 43 137 33 136 33 134 33 134 36 139 70 137
12.5
kHz
33 132 33 131 33 131 43 137 33 132 33 131 33 131 36 135 70 134