EA011 / EA012 Electrostatic Actuator
EA011/EA012 electrostatic actuator is developed by BSWA for determine the
frequency response of condenser microphone.
Electrostatic actuators are used to
simulate the pressure response of condenser microphone by apply an alternating
electrostatic force in front of the diaphragm and measuring the consequent
response of the microphone. The electrostatic force comprising a high
polarization voltage (generally 800 VDC) superimposed with a smaller AC
voltage. The condenser microphone under test must be metal diaphragm, thus it
can be tested by the electrostatic actuator.
Features:
EA011 is suitable for 1”, 1/2” and 1/4” microphone
EA012 is suitable for 1/2” and 1/4” microphone
Small and portable
Applications:
Pressure field frequency response measurement of condenser microphone
Phase response measurement of condenser microphone
Specifications
Type
EA011
EA012
Application
1”,
1/2” and 1/4” microphone
1/2”,
1/4” microphone
Standard
IEC
61094-6, ANSI S1.10
Temperature Range
-30
°C ~ 80 °C
Humidity Range
0
%RH ~ 95 %RH
Size (mm)
Φ45
x 17
Φ23
x 10.5
Weight
84g
(include connector)
21g
(include connector)
Option
Thread Adapter
1” to 1/2”
For
EA011 to measure 1/2" microphone and can be connected to the protect
cover thread of WS2 microphone
1/2” to 1/4”
For
EA012 to measure 1/4" microphone and can be connected to the protect
cover thread of WS3 microphone
Cylindrical adapter
1” to 1/2”
For
EA011 to measure 1/2" microphone and needs to be installed on a
dedicated calibration support
1” to 1/4”
For
EA011 to measure 1/4" microphone and needs to be installed on a
dedicated calibration support
1/2” to 1/4”
For
EA012 to measure 1/4" microphone and needs to be installed on a
dedicated calibration support
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