Externally polarized cartridges (200 V)
Besides ear simulators with externally polarized microphone cartridges (200 V), our solutions in the artificial ears and simulators range also include
Volume: 1260 mm³ @ 500 Hz
Dyn range: 25 dB(A) to 164 dB
Sensitivity 12.5 mV/Pa
IEC: 60318-4
GRAS RA0045 Externally Polarized Ear Simulator According to IEC 60318-4 (60711)
The GRAS RA0045 is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. It includes a 40AG pressure microphone and is individually calibrated with this specific microphone.
Standards: IEC 60318-4 (based on), ITU-T P.57
Eff vol: 1260 mm³ @ 500 Hz
Res freq: 13.5 kHz ±1 kHz
GRAS RA0045-S4 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Sensitivity
The GRAS RA0045-S4 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045-S4 includes a 40AP pressure microphone and each RA0045-S4 is individually calibrated with this specific microphone.
Standards: IEC 60318-4 (based on), ITU-T P.57
Eff vol: 1260 mm³ @ 500 Hz
Res freq: 13.5 kHz ±1 kHz
GRAS RA0045-S5 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Pressure
The GRAS RA0045-S5 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045 includes a 40BP pressure microphone and each RA0045-S5 is individually calibrated with this specific microphone.
