TYPE 4955

1/2" Free-field Microphone, Low-noise, Ext. Polarized

Low noise microphone for sound power measurements and free-field measurements in strong magnetic fields, over a frequency range of 5 Hz to 20 kHz.

Solicitar oferta

Low-noise Microphone Type 4955 consists of a high sensitivity ½" cartridge, which has been optimised for the lowest inherent noise.

USE SCENARIOS

  • Sound power measurements
  • Low-level measurements
  • In-cabin measurements
  • Measurements in strong magnetic fields
  • Homeland security applications
Capacitance
pF
Diameter
1/2
Dyn. range
6.5 – 110 dB
Freq. range
10 – 16000 Hz
Inherent noise
6.5 dB A
Lower limiting frequency -3dB
10 Hz
Optimised
Low Noise
Polarization
Ext polarized
Polarization voltages
200 V
Pressure coefficient
-0.013 dB/kPa
Sensitivity
1100 mV/Pa
Temperature coefficient
-0.01 db/ºC
Temperature range
-20 – 100 C
Venting
Front
Weight
34 gram
Sound field
Free-field
Input type
Classic
Microphone type
Low Noise