MPA471S microphone Introduction: MPA471S/MPA472S/MPA473S are a combination of MP47xS microphone and MA411A/B preamplifier, which can be split into MP47xS and MA411A/B according to user needs. MP47xS is a 1/4 "pressure field microphone suitable for measurement in pressure field environments such as chambers, near hard reflective surfaces, or installed flush with hard surfaces. It uses pre polarization without the need for external polarization voltage and is suitable for ICCP powered preamplifiers, complying with IEC 61094 WS3P standard. MA411A/B is a 1/4 "ICCP powered preamplifier suitable for pre polarized microphones. Application scope: Measurement of high sound pressure such as artillery and automatic weapons, aircraft engines, and rocket engine noise; High frequency noise measurement; Technical parameters: Diameter: 1/4“ Compliant with standard (IEC 61672): Level 1 Microphone: MP471S Sound field type: pressure field Pre amplifier: MA411A/B Open circuit sensitivity (mV/Pa) (± 2 dB) 1:0.5 (-66 dB re 1V/Pa) Frequency response (Hz): 8-20k (± 2 dB), 6-40k (-3 dB/+7 dB) Dynamic range (dBA~dB) 2:56 dBA~170 dB (MPA471S) Maximum output voltage (Vpeak): ± 7 Self generated noise (dBA): 56 (MP471S), 61 (MP472S), 65 (MP473S) Output impedance (Ω):<30 Pressure equalization method: side equalization Power supply mode: ICCP (2mA~20mA, 4mA typical) Temperature range for use (° C): -30~80 Humidity range (% RH): 0~98 Temperature coefficient (250Hz) (dB/° C): -0.02 Pressure coefficient (250Hz) (dB/kPa): -0.007 Humidity impact (dB):<0.1 Dimensions (mm): Ø 7 × 63.3 (compatible with MA411A), Ø 7 × 58.3 (compatible with MA411B) Output interface: SMB/10-32 UNF Weight (g): 7.7 TEDS: Optional, compliant with IEEE 1451.4 (default v0.9, optional v1.0)
Introduction: MPA471S/MPA472S/MPA473S are a combination of MP47xS microphone and MA411A/B preamplifier, which can be split into MP47xS and MA411A/B according to user needs. MP47xS is a 1/4 "pressure field microphone suitable for measurement in pressure field environments such as chambers, near hard reflective surfaces, or installed flush with hard surfaces. It uses pre polarization without the need for external polarization voltage and is suitable for ICCP powered preamplifiers, complying with IEC 61094 WS3P standard. MA411A/B is a 1/4 "ICCP powered preamplifier suitable for pre polarized microphones. Application scope: Measurement of high sound pressure such as artillery and automatic weapons, aircraft engines, and rocket engine noise; High frequency noise measurement;
