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Type 4964

TYPE 4964

½-INCH INFRASOUND MICROPHONE, PREPOLARIZED

Infrasound microphone specifically designed for high-precision, acoustic measurements with high sensitivity in the frequency range of 0.02 Hz to 20 kHz.

Code Standard Sound field Polarization voltage Sensitivity Lower limiting frequency Higher limiting frequency Inherent noise Upper limiting of dynamic range Diameter Venting Lower operating temperature Higher operating temperature Lower operating temperature Higher operating temperature
-4964--- IEC 61094 Free field 0V 50 mV/Pa 0.02 Hz 20 kHz 14.2 db_a 146 dB 1/2 inch Rear -30 °C 150 °C -22 °F 302 °F

Infrasound Microphone Cartridge Type 4964 is designed for high-precision, acoustic measurements where an infrasound microphone with high sensitivity is required. Being prepolarized, Type 4964 can be used with both CCLD and classical preamplifiers, and makes the microphone especially well-suited for battery operated equipment and operation in environments with high humidity.

  • General noise measurements
  • Wind turbine measurements
  • Sonic boom measurements

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