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Automotive surface microphone with 1 coaxial cable Type 4949

TYPE 4949

SURFACE MICROPHONE FOR  AUTOMOTIVE APPLICATIONS 

Automotive surface microphone designed for measurement of the true surface pressure. Ideal for mounting directly on the car surface during wind-tunnel tests and for measuring in confined spaces.

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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.

  • Noise measurement on surfaces including glass and in confined spaces
  • Wind-tunnel testing
  • Low to medium noise measurements
  • Flush mounting
  • Connects to CCLD input
Code Name
-4949--- 1/2" 0V Mic, Automotive Surface
-4949-B-- 1/2" 0V Mic, Automotive, 2 Coax Cables
-4949-W-004- 1/2" 0V Mic,Automotive, Rubber Fairing
-4949-W-003- 1/2" 0V Mic,Automotive,Reinf.of 10-32UNF
-4949-W-007- Microphone, Automotive Surface, with

File

Description

Type

Languages

Size
Automotive Surface Microphones Types 4949 and 4949B

Technical Document English 327 KB
TYPE 4949
Sound field Pressure field
Polarization CCLD
Sensitivity 11.2 mV/Pa
Freq. range (low) 5 Hz
Freq. range (high) 20000 Hz
Dyn. range (low) 30 dB
Dyn. range (high) 140 dB
Diameter 1/2 inch
Venting Front
Lower operating temperature -30 °C
Higher operating temperature 100 °C
Lower operating temperature -22 °F
Higher operating temperature 212 °F
Output signal (connectivity) Passive

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