SURFACE MICROPHONE FOR AUTOMOTIVE APPLICATIONS
SURFACE MICROPHONE FOR AUTOMOTIVE APPLICATIONS真の面圧を測定するために設計された車載用表面マイクです。
風洞実験中に車の表面に直接取り付けたり、狭い場所での測定に最適です。
TYPE 4949
TYPE4949は、自動車用途の真の表面圧測定用に設計された「自動車用マイク」です。このマイクは、風洞試験中に車の表面に直接取り付けたり、ファイアウォールや車の下面など、狭い場所での測定に非常に適しています。
| Automotive Surface Microphones Types 4949 and 4949B | Data Sheets | English |
| Automotive Surface Microphones Types 4949 and 4949B | Data Sheets | Japanese |
| Application | Surface microphone |
List of accessories available for all variants of this family
Type 4949 is a "car microphone" designed for measuring the true surface pressure in automotive applications. The microphone is exceptionally suited for mounting directly on the car surface during wind-tunnel tests or for measurement in confined spaces; for example, on the firewall or the underside of a vehicle.
The optional mounting pads allow easy mounting of the microphone even on the curved surfaces of a car. Despite its small size, Type 4949 is a rugged and stable measurement microphone. The microphone housing and the metallic parts of the diaphragm-backplate arrangement, including the diaphragm, are all titanium, ensuring uniquely high resistance to corrosion.
The diaphragm is flush with the microphone housing in order to minimize the wind-generated noise of the microphone. The microphone pressure-equalization vent is placed just next to the diaphragm on the front of the microphone. This is important since the static pressure can vary rapidly with position when the microphone is exposed to turbulent pressure fluctuations.
Surface Microphone Type 4949 has a built-in preamplifier for connection to CCLD inputs. The sensitivity of the microphone is optimized in order to achieve a good noise floor and still allow measurements at higher levels without clipping.
The microphone supports IEEE 1451.4 (TEDS) for remote identification of the transducer and reading of its calibrated sensitivity. Type 4949 B also supports Brüel & Kjær’s proprietary Charge Injection Calibration (CIC) for remote verification of the complete, calibrated measurement channel.
Surface Microphone Type 4949 is yet another product based on Brüel & Kjær’s new patent-pending microphone technology.
With this technology, it is possible to obtain the same high
stability and uniformity as that of the traditional and well-known Brüel & Kjær measurement microphones
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, MicroStrain and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
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