Microphones

Brüel & Kjær produce a wide spectrum of microphones for any given measurement task. Four types of microphones define the measurement flexibility and adaptability for specific environments, industries, and measurement conditions; refereed to as free-field, pressure-field, diffuse field and special microphone. In addition our condenser microphones are supplied polarized or prepolarized and in sizes ranging from 1-inch, 1/2 inch, 1/4 inch or 1/8 inch in diameter.

TYPE 4138

1/8-inch pressure-field microphone, 6.5 Hz to 140 kHz, 200V polarization
Designed for very high-frequency measurements in confined spaces.
TYPE 4144

1-inch pressure-field microphone, 2.6 Hz to 8 kHz, 200V polarization
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-S

½-inch Condenser Microphone Cartridge, 3.15 Hz to 20 kHz, 200V polarization
Designed for use as a laboratory standard microphone.
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 4197

½-inch Microphone pair for Sound Intensity
Phase-matched pair of ½-inch microphones, designed for being used with Brüel & Kjær’s range of sound intensity analyzers.
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
Designed for general, random-incidence measurements. Also suitable for noise measurements in accordance with ANSI standards.
TYPE 4943

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

¼-inch pressure-field microphone 4 Hz to 70 kHz prepolarized
Designed for high-level and high-frequency measurements.
TYPE 4947

½-inch pressure-field microphone, 8 Hz to 10 kHz, prepolarized
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
Economy microphone designed for equipment intended 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
Designed for coupler measurements and in-cabin measurements. Suitable for measurements to ANSI standards.
TYPE 4954

¼-inch free-field microphone, 4 Hz to100 kHz, prepolarized
Designed for high-level and high-frequency measurements.
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
Designed for high‐precision, free‐field measurements where a microphone with high sensitivity is required.

Microphones

Filter Module

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-S

TYPE 4192-T

TYPE 4193

TYPE 4197

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