TYPE 4942-H-041

1/2" Diffuse-field Microphone With Type 1706 Preamplifier, Prepolarized

Diffuse-field microphone for general random-incidence and noise measurements (complying with ANSI standards) with a frequency response of 6.3 Hz To 16 kHz.

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Type 4942-H-041 is designed to resist high-temperatures (up to 125ºC / 257ºF) for general random-incidence measurements and for standardised noise measurements in accordance with ANSI standards. And being prepolarized it can connect to CCLD input conditioning.

USE SCENARIOS

  • Diffuse-field measurements
  • In-car measurements

THIS MICROPHONE SET IS A COMBINATION OF:

The unit is assembled in a clean-room environment and sealed together, after which it is assigned one single type number and one single serial number. This means that the combined unit has better precision and long-time stability, and is handled as one complete unit.

The unit also contains TEDS, which means that information about the serial number, type and sensitivity is stored within it.

THE BENEFITS OF USING A MICROPHONE-PREAMPLIFIER COMBINATION ARE:

  • Better stability and precision. Because the unit is assembled in clean-room facilities, there is no contamination.
  • Ease of use. Your analyzer front-end and software will automatically detect the type number, serial number and sensitivity because of the built-in TEDS technology. There is no need to enter this manually for every channel. 
  • Calibration integration. The TEDS technology means the microphone is automatically detected and identified by your data acquisition software, allowing it to be easily integrated with your calibration database.
  • Fewer errors. As your data acquisition software automatically knows the microphone type, serial number and sensitivity, manual inputs are greatly reduced – reducing human errors.
Capacitance
pF
Diameter
1/2
Dyn. range
18 – 134 dB
Freq. range
6.3 – 16000 Hz
Inherent noise
18 dB A
Lower limiting frequency -3dB
6.3 Hz
Optimised
Diffuse Field
Polarization
Prepolarized
Polarization voltages
0 V
Pressure coefficient
-0.01 dB/kPa
Sensitivity
50 mV/Pa
Temperature coefficient
-0.006 dB/ºC
Temperature range
-20 – 125 ℃
Venting
Rear
Weight
gram
Sound field
Diffuse-field
Input type
Classic
Microphone type
Diffuse Field