BRUEL & KJAER 4188 - Directional Characteristics

Chapter 7 — Low-frequency Pressure-field
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" Microphone Type 4193
Directional Characteristics
Falcon™ Range of Microphone Products
Microphone Handbook
BE1379– 12
7
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7.4 Directional Characteristics
Typical directional characteristics are given in Fig.7.14 and Fig.7.15. The character-
istics are normalised relative to the 0° response.
Fig.7.14 Typical directional characteristics of the microphone with Protection Grid DB3421
Fig.7.15 Typical directional characteristics of the microphone without protection grid
940852/1e
0°
330°
300°
270°
240°
210°
180°
150°
120°
60°
30°
0
5
– 5
– 10 – 15 – 20
5
0
– 5
– 10 –15 – 20
– 25
90°
0°
330°
300°
270°
240°
210°
180°
150°
120°
60°
30°
0
5
– 5
– 10 – 15 – 20
5
0
– 5
– 10 –15 – 20
– 25
90°
5 kHz
6.3 kHz
8 kHz
10 kHz
12.5 kHz
16 kHz
20 kHz
25 kHz
θ°
940853/1e
0°
330°
300°
270°
240°
210°
180°
150°
120°
60°
30°
0
5
– 5
– 10 – 15 – 20
5
0
– 5
– 10 –15 – 20
– 25
90°
0°
330°
300°
270°
240°
210°
180°
150°
120°
60°
30°
0
5
– 5
– 10 – 15 – 20
5
0
– 5
– 10 –15 – 20
– 25
90°
5 kHz
6.3 kHz
8 kHz
10 kHz
12.5 kHz
16 kHz
20 kHz
25 kHz
θ°