BRUEL & KJAER 4188 - Page 29

Chapter 2 — Prepolarized Free-field
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" Microphone Type 4188
Directional Characteristics
Falcon™ Range of Microphone Products
Microphone Handbook
Brüel & Kjær
2
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14
Note:
The non-symmetrical responses are at frequencies outside the microphone’s
nominal operating range (16 and 20kHz).
Fig.2.15 Typical directional characteristics of the microphone with Protection Grid DD 0525
Fig.2.16 Typical directional characteristics of the microphone without protection grid
940778e
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°
θ°
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
0°
330°
300°
270°
240°
210°
180°
150°
120°
60°
30°
0
5
– 5
– 10 – 15 – 20
5
0
– 5
– 10 –15 – 20
940779e
– 25
5 kHz
12.5 kHz
10 kHz
8 kHz
6.3 kHz
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°
16 kHz
20 kHz
θ°