Microphone Cartridges
Brüel & Kjær microphone cartridges are suited for a wide range of measurement applications. Four types of microphones define the sound field and adaptability for specific environments, industries, and measurement conditions, and are referred to as free-field, pressure-field, diffuse-field, and special microphones. B&K microphone cartridges are supplied in 1 inch, 1/2 inch, 1/4 inch or 1/8 inch diameter size, and require a microphone preamplifier.
SELECT YOUR Microphone
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TYPE 4176
½-inch Free-field Microphone, Prepolarized, 6.5 Hz – 12.5 kHz
Free-field microphone for sound level meter measurements (IEC61672 class 1 and ANSI S 1.4 Type 1) over a frequency response of 6.5 Hz To 12.5 kHz.
- Dyn. range : 14 – 142 dB
- Freq. range : 6.5 – 12500 Hz
- Polarization : Prepolarized
- Sensitivity : 50 mV/Pa
- Standards :
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TYPE 4188
½-inch Free-field Microphone, Prepolarized
Free-field microphone for measurements in transport-noise measurements, architectural acoustics and electroacoustics over a frequency range of 8 Hz to 12.5 kHz.
- Dyn. range : 15.8 – 146 dB
- Freq. range : 8 – 12500 Hz
- Polarization : Prepolarized
- Sensitivity : 31.6 mV/Pa
- Standards :
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TYPE 4189
½" Prepolarized Free-field Microphone
Type 4189 is designed for high-precision, free-field measurements where a microphone with high sensitivity is required. Being prepolarized, the microphone can be used with both DeltaTron and classical preamplifiers.
- Dyn. range : 14.6 – 146 dB
- Freq. range : 6.3 – 20000 Hz
- Polarization : Prepolarized
- Sensitivity : 50 mV/Pa
- Standards : IEC 61094-4 WS2F
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TYPE 4190
½-inch Free-field Microphone, Externally Polarized, 6.3 Hz – 20 kHz
Microphone designed for high-precision free-field measurements from 6.3 Hz to 20 kHz with high sensitivity.<br>.
- Dyn. range : 14.6 – 146 dB
- Freq. range : 6.3 – 20000 Hz
- Polarization : Ext polarized
- Sensitivity : 50 mV/Pa
- Standards : IEC 61094-4 WS2F
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Type 4191
½-inch Free-field Microphone, Externally Polarized, 3.15 Hz – 40 kHz
Free-field microphone for high-precision, free-field measurements with a wide frequency range/bandwidth of 3.15 Hz to 40 kHz.
- Dyn. range : 20 – 162 dB
- Freq. range : 3.15 – 40000 Hz
- Polarization : Ext polarized
- Sensitivity : 12.5 mV/Pa
- Standards : IEC 61094-4 WS2F
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TYPE 4939
1/4" Free-field Microphone, Ext. Polarized
Free-field microphone designed for high-level and high-frequency measurements over a frequency range of 4 Hz to 100 kHz.
- Dyn. range : 28 – 164 dB
- Freq. range : 4 – 100000 Hz
- Polarization : Ext polarized
- Sensitivity : 4 mV/Pa
- Standards : IEC 61094-4 WS3F
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TYPE 4940
½-inch Free-field Microphone, Prepolarized, IEC 60651 Type 1
Free-field microphone for outdoor and industrial environment measurements (IEC 60651 Type 1) and frequency analysis measurements from 2 Hz to 20 kHz.
- Dyn. range : 14.6 – 146 dB
- Freq. range : 6.3 – 20000 Hz
- Polarization : Prepolarized
- Sensitivity : 50 mV/Pa
- Standards :
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TYPE 4950
½-inch Free-field Microphone, Prepolarized (IEC 6172 Class 1)
Free-field microphone designed for accurate sound measurements (IEC 61672 Class 1 and ANSI S 1.4 Type 1) over a frequency range of 6.5 Hz to 16 kHz.
- Dyn. range : 15 – 142 dB
- Freq. range : 6.5 – 16000 Hz
- Polarization : Prepolarized
- Sensitivity : 50 mV/Pa
- Standards :
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TYPE 4954
1/4-inch Free-field Microphone, Prepolarized
Free-field microphone designed for high-level and high-frequency measurements over a frequency range of 4 Hz to 100 kHz.
- Dyn. range : 35 – 165 dB
- Freq. range : 4 – 100000 Hz
- Polarization : Prepolarized
- Sensitivity : 3.16 mV/Pa
- Standards : IEC 61094-4 WS3F
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TYPE 4964
½-inch Infrasound Microphone, Prepolarized
Infrasound microphone specifically designed for high-precision, acoustic measurements with high sensitivity in the frequency range of 0.02 Hz to 20 kHz.
- Dyn. range : 14.6 – 146 dB
- Freq. range : .02 – 20000 Hz
- Polarization : Prepolarized
- Sensitivity : 50 mV/Pa
- Standards : IEC 61094-4 WS2F
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TYPE 4966
½-inch Free-field Microphone, Prepolarized, 5 Hz – 20 kHz
Free-field microphone designed for high‐precision and high sensitivity measurements with a frequency response of 5 Hz to 20 kHz.
- Dyn. range : 14.6 – 144 dB
- Freq. range : 5 – 20000 Hz
- Polarization : Prepolarized
- Sensitivity : 50 mV/Pa
- Standards : IEC 61094-4 WS2F