TYPE 4176
½-inch Free-field Microphone, Prepolarized, 6.5 Hz – 12.5 kHz
Free-field microphone for sound level meter measurements (IEC61672 class 1 and ANSI S 1.4 Type 1) over a frequency response of 6.5 Hz To 12.5 kHz.
견적 요청하기Type 4176 is a prepolarized ½-inch free-field microphone designed for accurate and reliable sound measurements, as required for sound level meters in accordance with IEC 61672 class 1 and ANSI S 1.4 Type 1.
USE SCENARIOS
- Sound measurements to IEC 61672, and ANSI S 1.4-1983
- As a sound level meter microphone
CALIBRATION
The sensitivity of Type 4176 can be calibrated at 250 Hz using Pistonphone Type 4228 with Adaptor DP 0776, or at 1 kHz using Sound Level Calibrator Type 4231. Calibration in an extended frequency range is possible using Multifunction Acoustic Calibrator Type 4226.
- Capacitance
- 12.5 pF
- Diameter
- 1/2
- Dyn. range
- 14 – 142 dB
- Freq. range
- 6.5 – 12500 Hz
- Inherent noise
- 13.5 dB A
- Lower limiting frequency -3dB
- 5 Hz
- Optimised
- Free field
- Polarization
- Prepolarized
- Polarization voltages
- 0 V
- Pressure coefficient
- -0.02 dB/kPa
- Sensitivity
- 50 mV/Pa
- Temperature coefficient
- -0.004 dB/ºC
- Temperature range
- -30 – 100 ℃
- Venting
- Rear
- Weight
- gram
- Sound field
- Free-field
- Input type
- Classic
- Microphone type
- Free field
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