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4188-C-001

FAMILY 4188

½-INCH FREE-FIELD MICROPHONE, PREPOLARIZED

Free-field microphone for measurements in transport-noise measurements, architectural acoustics and electroacoustics over a frequency range of 8 Hz to 12.5 kHz.

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FAMILY 4188

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Type 4188 is designed for free-field measurements where an economy microphone with medium sensitivity is required. Being prepolarized, Type 4188 can be used with both CCLD and classical preamplifiers.

  • Medium class sound level meters
  • Equipment complying with IEC 61672 class 1
  • Random-incidence measurements
  • Portable sound measuring equipment
  • Being prepolarized, Type 4188 is especially well suited for battery-operated equipment or for operation in environments with high humidity.
Code Polarization Lower frequency [Hz] Lower dynamic range [dB] Higher dynamic range [dB]
-4188-A-021- CCLD 20 Hz 19 dB 138 dB
-4188-C-001- Classical 8 Hz 15.8 dB 146 dB
-4188-L-001- Classical 8 Hz 15.8 dB 146 dB

File

Description

Type

Languages

TEDS Microphones

Technical Document English
FAMILY 4188
Standard ANSI S1.4
Sound field Free field
Polarization Classical, CCLD
Sensitivity [mV/Pa] 31.6 mV/Pa
Lower frequency [Hz] 8 Hz, 20 Hz
Higher frequency [Hz] 12.5 kHz
Lower dynamic range [dB] 15.8 dB, 19 dB
Higher dynamic range [dB] 146 dB, 138 dB
Diameter 1/2 inch
Venting Rear
Minimum Temperature [°C] -30 °C
Maximum Temperature [°C] 100 °C
Minimum Temperature [°F] -22 °F
Maximum Temperature [°F] 212 °F
Output signal (connectivity) Passive

Type 4188-A-021 is designed for free-field measurements where an economy microphone with medium sensitivity is required.

USE SCENARIOS

  • Medium class sound level meters
  • Equipment complying with IEC 61672 class 1
  • Random-incidence measurements
  • Portable sound measuring equipment

THIS MICROPHONE SET IS A COMBINATION OF:

  • Microphone Type 4188
  • Preamplifier Type 2671

 

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.

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