SS 775-11

Uhf microphone kit, 40kHz
Highfrequency artificial ear is an ear simulator that simulates the way an ear plug catheter is inserted into the ear canal or auricle, and simulates the coupling of the earphone with the human ear to measure the acoustic performance of the earphone. The SS 775-11 uses a 1/4-inch microphone inside, coupled cavity and front integrated structure that is non-removable, and it is a pre-polarized pressure field measurement microphone kit.
With MegaSig PM 0083 IEPE signal conditioner to achieve the best test results;

Specifications

Specifications

Types of Acoustic Fields	Pressure Field
Polarization voltages	0V（Prepolarized）
Frequency range	20Hz – 10kHz ± 1dB 10kHz – 20kHz ± 1.5dB 20kHz – 40kHz ± 2dB
Dynamic range	34dB（A）- 155dB（1000 Hz THD<3%）
Background noise	34dB（A）
Sensitivity mV/Pa(dBV/Pa)	4.5mV (-47.0dB) ± 2dB
Maximum Output Voltage	5.6V
Output Impedance	<50Ω
Power Supply	2mA - 10mA（typical 4mA）
Pressure Equalization Method	Post-equalization
Connection	Micrpdpt（M5）
Temperature range, operation	-20℃ to 60℃
Temperature range, storage	Temperature：25℃±5℃，Humidity：50%±15%RH（Ensure the long-term stability of the sensor）
Humidity range non condensing	10 - 90% without condensation
Humidity coefficient	<0.1dB