HomeProductsSensorsEar simulatorUltra low noise, 12dBA
Ultra low noise, 12dBA

SS 771-11-L2

  • Ultra low noise, 12dBA
  • The high sensitivity and low noise artificial ear is an ear simulator that simulates the way an earplug catheter is inserted into the ear canal or auricle, and simulates the coupling between the earphone and the human ear to measure the acoustic performance of the earphone. The SS 771-11 is a coupled cavity and preamplifier integrated non-detachable construction, it is a pre-polarized pressure field measurement microphone kit.

    With MegaSig PM 0083 IEPE signal conditioner to achieve the best test results;


  • Description
  • Download

Description

Specifications


ParameterValue
Sound Field TypePressure field
Earphone Type入耳式
Coupler Volume/
Frequency Response20Hz - 10KHz ± 0.5dB 10kHz - 20kHz ± 2dB
Dynamic Range12dB(A) - 125dB
Noise Floor12dB(A)
Sensitivity低底噪量程:250mV/Pa (-12dB±2dB) re 1V/Pa 高声压量程:50mV/Pa (-26dB±2dB) re 1V/Pa
Standard/
ConnectorSMB
Operating Temperature-20°C to 60°C
Relative Humidity10- 90% no condensation


Specifications


Types of Acoustic Fields

Pressure Field

Polarization voltages

0V(Prepolarized)

Frequency range

20Hz – 16kHz ± 1dB

Dynamic range

21dB(A)- 146dB(1000 Hz  THD<3%)

Background noise

21dB(A)

Sensitivity  mV/Pa(dBV/Pa)

45mV (-26.0dB) ± 2dB

Maximum Output Voltage

5.6V

Output Impedance

<50Ω

Power Supply

2mA - 10mA(typical 4mA)

Pressure Equalization Method

Post-equalization

Connection

BNC

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 condensing20 - 90% without condensation

Humidity coefficient

<0.1dB

Dimensions(unit:mm)


SS 771-11-L2.png

Download