You Are Here：Home > Sensors > Ear simulator > C 313+M 677+A 815
HomeProductsSensorsEar simulatorHearing Aid Testing, Pressure, 2cc,
Hearing Aid Testing, Pressure, 2cc,

C 313+M 677+A 815

  • Hearing Aid Testing, Pressure, 2cc,

  • C 313+M 677+A 815 acoustic coupling cavity, suitable for acoustic measurement of hearing aids and earphones Quantity. The coupling cavity volume is 2cc.

    C 313+M 677+A 815 positioning is a cost-effective acoustic coupling cavity, specially for hearing aids Or audio production line test of headphone products.

    The best test effect can be achieved with IEPE signal conditioner such as megasig PM 0083.


  • Description
  • Download

Description

Specifications

ParameterValue
Sound Field TypePressure field
Dimensions1/2inch
Earphone Type助听器测试专用
Frequency Response20Hz – 60kHz ± 0.2dB
Coupler Volume2cc
Distortion＜0.1%
Operating CurrentTypical4mA
Dynamic Range22dB（A）-135dB（1000 Hz THD<3%）
Connector TypeBNC
Noise Floor22dB（A）
Applicable Temperature-20°C to 60°C
Sensitivity50mV (-26.0dB) ± 2dB
Length28mm
Standard/
ConnectorBNC
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

10Hz – 16kHz ± 3dB  20Hz – 10kHz ± 2dB   20Hz – 7.5kHz ± 1dB

Dynamic range

22dB（A）- 135dB（1000 Hz  THD<3%）

Background noise

22dB（A）

Sensitivity  mV/Pa(dBV/Pa)

50mV (-26.0dB) ± 2dB

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 condensing10 - 90% without condensation
Materials

Stainless steel

coupling cavity volume2cm³



Download