MP281 /2-inch diffuse-field Microphone
MP281 is a 1/2-inch diffuse-field microphone developed by BSWA. According to ANSI Class 1 standard.Sensitivity (@250 Hz) :40 mV/Pa (±2 dB)
Frequency Range: 6 Hz ~ 12.5k Hz
Dynamic Range: 17 dBA ~ 146 dB
MP281 is diffuse-field microphone can be used in closed couplers, ear simulator, nearby reflective surface and random-incidence measurements refer to ANSI standard.
Specification
|
Sound Field Type |
Diffuse-field |
|
Diameter |
1/2 |
|
Level (IEC61672) |
ANSI Class 1 |
|
Frequency Response Range (Hz) |
6 ~ 12.5k |
|
Open-circuit Sensitivity @250 Hz (mV/Pa) (±2dB) |
40 |
|
Dynamic Range (dBA ~ dB) |
17 ~ 146 |
|
Base Noise (dBA) |
< 16 |
|
Pressure Equalization |
Rear vent |
|
Operating Temperature Range (℃) |
-30 ~ 80 |
|
Operating Humidity Range (RH) |
0 ~ 98% |
|
Capacitance (pF) |
16 |
|
Equivalent Volume of Front Space @250 Hz (mm3) |
46 |
|
Temperature Coefficient (dB/℃) |
-0.012 |
|
Humidity Coefficient (dB/%RH) |
0.003 |
|
Pressure Coefficient (250 Hz) (dB/kPa) |
-0.004 |
|
Dimensions |
IEC 61094－4 Type WS2 |
|
Mounting Thread for Preamplifier |
M11.7 － 60UNS |
|
Preamplifier Type |
MA231/ MA221/ MA231T |
Download information:
MP281 Microphone_Brief
