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Specialty Test and Measurement Microphones

When acoustic measurements need to be made in demanding environments and applications, a variety of PCB® specialty microphones are available.

Low Noise Prepolarized Microphone

Low Frequency Microphone System

This 1/2" microphone and preamplifier system, model 378A07 aids in low frequency testing, ideal for infrasound measurements and studies ranging from wind turbines to natural events like tornadoes. Model 378A07 is comprised of a 1/2” (12mm) 377A07 prepolarized microphone, a 426E01 preamplifier, and a low frequency filter adapter, Model 079A43. Low frequency measurements are commonly required for wind turbines, sonic booms, diesel engines and specialized loudspeaker systems to name a few.
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Low Noise Prepolarized Microphone

Low Noise Prepolarized Microphone

The 378A04 is a matched system that is comprised of a high sensitivity microphone and a low noise preamplifier that contains a built-in filter that enables the free-field response to remain flat over a wide frequency range.
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Dust and Water Resistant Array Microphone

Dust and Water Resistant Array Microphone

This microphone with a replaceable water and dust resistant cover is ideal for high humidity applications, outdoor measurements or harsh industrial settings where dust or oil splash is a concern.
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High Temperature Microphones

High Temperature Microphones

These microphones are used to make measurements in environments where operating temperatures can reach +257 ºF (+125 ºC). Typical high temperature applications include engine, manifold, exhaust, transfer path, and HVAC testing.
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Surface Microphones

Surface Microphones

These low profile microphones are used for measuring true surface pressure and noise. Its footprint allows noise measurements to be taken where traditional microphones will not fit. A water and dust resistant grid cap is ideal for dirty and rough environments. Typical applications include wind tunnel noise measurements, brake noise, acoustic fatigue analysis, and clear air turbulence (CAT) testing.
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Prepolarized Probe Microphone

Prepolarized Probe Microphone

The small profile Probe Microphone is used for acoustic measurements in small, hard-to-reach places and where precise placement is required in near-field testing within confined areas. This probe microphone is used in extremely high temperatures environments (800◦C).
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Side Vented Pressure Field Microphones

Side Vented Pressure Field Microphones

These microphones can be flush mounted in a cavity, tube, wall or panel. This design allows for equalization of atmospheric pressure between the inside of the microphone and the outside of the structure. They are recommended for applications such as impedance tube testing, HVAC testing, and where high sound pressure levels or high frequency measurements are required.
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High Amplitude Pressure Microphones

High Amplitude Pressure Microphones

High amplitude applications such as airbag testing, gunshot analysis, blast detection, and hearing preservation/safety require microphones that accurately measure high sound pressure levels.
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