Sensear SM1R, Руководство пользователя

Страница: 26 / 35

DOC00074 SM1R Manual rev 04
24
PASSIVE ATTENUATION (EN352-1 ANDEN352-3)
SM1R measured in accordance with EN352-1 and EN352-3.
Headband mount - SM1RB001 (EN352-1)
Frequency (Hz) 125 250 500 1000 2000 4000 8000 H M L SNR
(dB)
Mean attenuation
(dB)
22.5 24.5 31.5 34.9 35.8 38.0 39.8
35 30 24 33
Standard Dev. (dB)
4.8 2.6 2.3 3.1 2.5 2.1 2.7
Mean attenuation –
Standard Dev. (dB)
17.7 21.9 29.2 31.8 33.3 35.9 37.1
Behind-the-Neck mount - SM1RE001 (EN352-1)
Frequency (Hz) 125 250 500 1000 2000 4000 8000 H M L
SNR
(dB)
Mean attenuation
(dB)
20.7 21.3 27.7 34.0 33.3 35.3 36.1
32 27 21 30
Standard Dev. (dB) 5.1 3.3 3.1 2.5 2.9 2.3 2.6
Mean attenuation –
Standard Dev. (dB)
15.6 18.0 24.6 31.5 30.4 33.0 33.5
Helmet mount - SM1RH001 (EN352-3)
Frequency (Hz) 125 250 500 1000 2000 4000 8000 H M L SNR
(dB)
Mean attenuation
(dB)
20.4 22.2 28.2 33.5 36.9 38.0 37.5
34 28 22 31
Standard Dev. (dB) 3.6 3.3 3.3 3.6 2.3 3.9 3.0
Mean attenuation –
Standard Dev. (dB)
16.9 18.8 24.9 29.8 34.6 34.1 34.6
En
glis
h