DPA 3529-A Manual do utilizador - Página 4
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25
dB
20
15
10
5 dB
5
0
10
20 Hz 50
100
200
Fig. 3. On-axis and diffuse-field responses of Types 4003 and 4006
with the Near-field Grid DD0251 fitted.
25
dB
20
15
10
5 dB
5
0
10
20 Hz 50
100
200
Fig. 4. On-axis and diffuse-field responses of Types 4003 and 4006
with the Diffuse-field Grid DD0297 fitted.
6
On-axis
Diffuse
500 1 kHz
2
5
10
20
40 D A B C Lin.
On-axis
Diffuse
500 1 kHz
2
5
10
20
40 D A B C Lin.
25
dB
20
15
10
5 dB
5
0
10
20 Hz
50
100
200
500
Fig. 5. Diffuse-field response of Types 4003 and 4006 with Nose
Cones UA0777 fitted.
15 kHz
10 kHz
5 kHz
1 kHz
Fig. 6. Directional characteristics of Types 4003 and 4006 with
Near-field Grid DD0251 fitted.
Diffuse
1 kHz
2
5
10
20
40 D A B C Lin.
5 dB
20 kHz
7