TYPE 4182

Probe Microphone

Probe Microphone Type 4182 is optimized for near-field sound pressure measurements in places with limited space, or in harsh environments where a conventional microphone would be unsuitable.

Solicitar oferta

Probe Microphone Type 4182 has a smooth frequency response from 1Hz to 20kHz, with a very smooth high-frequency roll-off.

USE SCENARIOS

  • Near-field measurement of loudspeakers
  • Investigation of sound distribution inside:
  • Telephone equipment
  • Hi-Fi headphones
  • Musical instruments
  • Measurement of noise radiation from intricate machinery
  • Measurement of attenuation in hearing protectors
  • Acoustic impedance measurements
Measurements can be performed extremely close to the sound source due to its small size. Measurement points can be closely spaced when it is necessary to have a high spatial resolution. The high impedance of the narrow probe tip enables measurements in very small volumes – as small as 1cm3 with only minor effects due to acoustic loading.

Physically, our Probe Microphone is very small and lightweight and has a durable construction. Interchangeable stiff and flexible probe tubes, of various lengths, make the probe microphone very adaptable for measurements in awkward places.

For safety reasons, Probe Microphone Type 4182 is not suitable for measurements on the human body.
Capacitance
pF
Diameter
Probe (0.05")
Dyn. range
42 – 164 dB
Freq. range
1 – 20000 Hz
Inherent noise
42 dB A
Lower limiting frequency -3dB
Hz
Optimised
Probe
Polarization
Ext polarized
Polarization voltages
200 V
Pressure coefficient
-0.007 dB/kPa
Sensitivity
3.16 mV/Pa
Temperature coefficient
-0.005 dB/ºC
Temperature range
-10 – 700 ℃
Venting
Selected
Weight
gram
Sound field
Special
Input type
Classic
Microphone type
Probe