TYPE 4941-A-011

1/4" Pressure-field Microphone With Type 2670 Preamplifier, Ext. Polarized

Pressure-field microphone for very high-level measurement, such as gunshot, fireworks and rockets with a frequency response of 4 Hz To 20 kHz.

問い合わせ・見積依頼

Type 4941-A-011 is designed for measurement of very high levels. The robust construction of this microphone allows it to sustain burst pressure up to 201 dB without damage.

USE SCENARIOS

  • Gunshot noise measurements
  • Fireworks noise measurements
  • Rocket noise measurements
  • General high-intensity 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
1/4
Dyn. range
74 – 184 dB
Freq. range
4 – 20000 Hz
Inherent noise
74 dB A
Lower limiting frequency -3dB
4 Hz
Optimised
High Pressure
Polarization
Ext polarized
Polarization voltages
200 V
Pressure coefficient
dB/kPa
Sensitivity
0.08 mV/Pa
Temperature coefficient
dB/ºC
Temperature range
-20 – 80 ℃
Venting
Side
Weight
gram
Sound field
Pressure-field
Input type
Classic
Microphone type
High Pressure