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.

Type 4138

1/8-inch pressure-field microphone, 6.5 Hz to 140 kHz, 200V polarization
Microphone cartridge designed for very high-frequency measurements in confined spaces. Type 4138 has a frequency range of 6.5 Hz to 140 kHz, and 200V polarization requiring a classical preamplifier.
TYPE 4144

1-inch pressure-field microphone, 2.6 Hz to 8 kHz, 200V polarization
Microphone cartridge type 4144 is a1-inch pressure-field microphone designed for coupler measurements.
TYPE 4145

1-inch free-field microphone, 2.6 Hz to 18 kHz, 200V polarization
Designed for low-level and laboratory free-field measurements, it is also suitable for sound pressure measurements in accordance with IEC 61672 Class 1
TYPE 4160

1-inch laboratory standard microphone, 2 Hz to 8 kHz, 200V polarization
Designed for use as laboratory reference standard microphone.
TYPE 4176

½-inch free-field microphone, 6.5 Hz to 12.5 kHz, prepolarized
Designed for measurements as required for sound level meters in accordance with IEC61672 class 1 and ANSI S 1.4 Type 1.
TYPE 4178

¼-inch sound intensity microphone pair, 4 Hz to 100 kHz, 200V polarization
Pair of phase matched Type 4939 microphones designed for measurement of sound intensity for high level and high frequency.
TYPE 4180

½-inch laboratory standard microphones, 1 Hz to 20 kHz, 200V polarization
Designed for use as laboratory standard microphone.
TYPE 4188

½-inch free-field microphone, 8 Hz to 12.5 kHz, prepolarized
Economy microphone designed for measurements in transport-noise measurements, architectural acoustics and electro-acoustics.
TYPE 4189

½-inch free-field microphone, 6.3 Hz to 20 kHz, prepolarized
A general purpose microphone, designed for high-precision, free-field measurements where a 20 kHz microphone with high sensitivity is required.
TYPE 4190

½-inch free-field microphone, 6.3 Hz to 20 kHz, 200V polarization
Designed for high-precision free-field measurements where a 20 kHz microphone with high sensitivity is required.
TYPE 4191

½-inch free-field microphone, 3.15 Hz to 40 kHz, 200V polarization
Designed for high-precision, free-field measurements where a 40 kHz bandwidth is required.
TYPE 4192

½-inch pressure-field microphone, 3.15 Hz to 20 kHz, 200V polarization
Designed for high-precision coupler measurements or ANSI noise measurements.
TYPE 4192-T

½-inch Condenser Microphone Cartridge, 3.15 Hz to 20 kHz, 200V polarization
Designed for use as a transfer standard microphone.
TYPE 4193

½-inch infrasound microphone, 0.07 Hz to 20 kHz, 200V polarization
Designed for infrasound measurements.
TYPE 4938

¼-inch pressure-field microphone, 4 Hz to 70 kHz, 200V polarization
Designed for high-level and high-frequency measurements.
TYPE 4939

¼-inch free-field microphone, 4 Hz to 100 kHz, 200V polarization
Designed for high-level and high-frequency measurements.
TYPE 4940

½-inch free-field microphone, 2 Hz to 20 kHz, prepolarized
Suitable for both outdoor and industrial environment measurements and for IEC 60651 Type 1 measurements and frequency analysis measurements
TYPE 4941

¼-inch extremely high-level pressure-field microphone, 4 Hz to 20 kHz, 200V polarization
Designed for high-level measurements, such as gunshot, fireworks and rockets.
TYPE 4942

½-inch diffuse-field microphone, 6 Hz to 16 kHz, prepolarized
Diffuse-field microphone cartridge type 4942 is intended for random-incidence (diffuse-field) measurements, and provides noise measurement in accordance with ANSI standards.
TYPE 4943

½-inch diffuse-field microphone, 3.15 Hz to 10 kHz, 200V polarization
½-inch diffuse-field microphone cartridge intended for general, random-incidence measurements, and noise measurements in accordance with ANSI standards.
TYPE 4944

¼-inch pressure-field microphone 4 Hz to 70 kHz prepolarized
Type 4944 is a pressure-field microphone cartridge designed for high-level and high-frequency measurements.
TYPE 4947

½-inch pressure-field microphone, 8 Hz to 10 kHz, prepolarized
Microphone cartridge Type 4947 is designed for coupler measurements in connection with telephone and hearing aid testing.
TYPE 4950

½-inch free-field microphone, 6.5 Hz to 16 kHz, prepolarized
Economic Microphone Cartridge Type 4950 is designed for accurate and reliable sound measurements in accordance with IEC 61672 Class 1 and ANSI S 1.4 Type 1.
TYPE 4953

½-inch pressure-field microphone, 3 Hz-10 kHz, prepolarized
Type 4952 microphone cartridge is designed for pressure-field coupler measurements and in-cabin measurements. Suitable for measurements to ANSI standards.
TYPE 4954

¼-inch free-field microphone, 4 Hz to100 kHz, prepolarized
Prepolarized Free-field Microphone Cartridge Type 4954 is designed for high-level and high-frequency measurements over a frequency range of 4 Hz to 100kHz.
TYPE 4964

½-inch infrasound microphone, 0.02 Hz to 20 kHz, prepolarized
Designed for high-precision, acoustic measurements where an infrasound microphone with high sensitivity is required.
TYPE 4966

½-inch free-field microphone, 5 Hz to 20 kHz, prepolarized
Free-field Microphone Cartridge Type 4966 designed for high‐precision, free‐field measurements where a microphone with high sensitivity is required.

Microphone cartridges

Microphone FINDER

Type 4138

TYPE 4144

TYPE 4145

TYPE 4160

TYPE 4176

TYPE 4178

TYPE 4180

TYPE 4188

TYPE 4189

TYPE 4190

TYPE 4191

TYPE 4192

TYPE 4192-T

TYPE 4193

TYPE 4938

TYPE 4939

TYPE 4940

TYPE 4941

TYPE 4942

TYPE 4943

TYPE 4944

TYPE 4947

TYPE 4950

TYPE 4953

TYPE 4954

TYPE 4964

TYPE 4966