Microphones

In the world of measurement grade microphones, Brüel & Kjær has always been the standard that others have tried to follow. Brüel & Kjær offers the industry’s largest line of measurement microphones to help you make the most accurate acoustic measurements possible.

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Primers & handbooks (5)

Microphone Parameters Explained

Sound Field Polarization	Frequency range > - Hz Max. SPL > dB
Standards Input Type	Include Capsules TEDS/Preamplifier Both

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Product No	Dynamic Range	Frequency Range	Sensitivity

4138 1/8-inch Pressure-field Microphone, 6 Hz to 140 kHz, 200V Polarization	52.2 - 168 dB	6.5 - 140000 Hz	1 mV/Pa


4144 1-inch Pressure-field Microphone, 3 Hz to 10 kHz, 200V Polarization Type 4144 is a 1-inch pressure-field microphone, that is, a microphone where the damping of the diaphragm is such that the pressure frequency response is flat over a...	10 - 146 dB	2.6 - 8000 Hz	50 mV/Pa


4145 1-inch Free-field Microphone, 3 Hz to 18 kHz, 200V Polarization Type 4145 is a 1-inch free-field microphone designed for low-level and laboratory free-field measurements. The specifications of Type 4145 also make it suitable for...	10.2 - 146 dB	2.6 - 18000 Hz	50 mV/Pa


4160 1-inch Laboratory Standard Pressure Microphone, 200V Polarization Types 4160 and 4180 are high quality condenser microphones intended for use as laboratory standard microphones and in laboratory coupler applications where high...	10 - 146 dB	2.6 - 8000 Hz	47 mV/Pa


4176 1/2-inch Free-field Microphone, 6 Hz to 12.5 kHz, Prepolarized	14 - 142 dB	7 - 12500 Hz	50 mV/Pa


4179 1-inch Free-field Microphone, 6 Hz to 12.5 kHz, Prepolarized for very low noise Uses: Hearing research Monitoring of very low background noise levels Sound Power measurement of very-low-level sources Distanced measurement of...	-2.5 - 102 dB	10 - 10000 Hz	100 mV/Pa


4180 1/2-inch Calibration Condenser Microphone, laboratory standard Types 4160 and 4180 are both high stability condenser microphones for laboratory standard applications and in coupler measurements. Type 4160 has been used for...	21 - 160 dB	4 - 20000 Hz	12.5 mV/Pa


4182 Probe Microphone Probe Microphone Type 4182 allows sound pressure measurements to be made in small or awkward places or in harsh environments where a conventional microphone would be...	42 - 164 dB	1 - 20000 Hz	3.16 mV/Pa


4184 Weatherproof Microphone Unit The middle section contains the microphone, the preamplifier, the impedance matching tubes, the circuit board comprising a filter and cable driver, the built-in test...	25 - 140 dB	20 - 8000 Hz	12.5 mV/Pa


4188 1/2-inch Free-field Microphone, 8 Hz to 12.5 kHz, Prepolarized Type 4188 is designed for free-field measurements where an economy microphone with medium sensitivity is required. Being prepolarized, Type 4188 can be used with both...	15.8 - 146 dB	8 - 12500 Hz	31.6 mV/Pa

Microphones

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