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  • Ear simulator

IEC 60318-4 Ear Simulator
TYPE 2128

  • 260,000Yen
2128_1
  • 2128_2

About the product

Ear Simulator TYPE 2128, complying with IEC 60318-4, is used to measure sound pressure and frequency characteristics of insert type earphone.
Characteristics of ear canal, eardrum, etc., are also taken into account, allowing to measure under similar condition to that with the simulator attached to human ear.
Each product is calibrated with ACO 1/2 inch pressure microphone TYPE 7013 associated with dedicated ear coupler.

TYPE 2128 is used with standard preamplifier TYPE 4028 to realize similar acoustic input impedance to that of human ear, offering really close condition to real ear.
The sound volume can be adjusted in fines, for instance, owing to careful design, precise grind and exact adjustment.

Product Specifications

Specification
Applicalbe StandardIEC 60318-4(former 60711)/ITU-T Rec. P57
TypeEar Simulator TYPE 2128
Microphone TYPE 7013 (built-in, sound pressure type)
Sound pressure sensitivity-39dB re 1V/Pa (11.2mV/Pa) (included preamplifier TYPE 4028)
Polarizing voltage200V
Frequency characteristics100Hz~10kHz
Resonance frequency13.8kHz±1kHz
Tolerance1.28cm³±0.03cm³
Size and Weightφ23.77×23 (Projection 20) Approx.70g (Included microphone)
Measuring range40~140dB
Preamplifier sizeTYPE 4028 φ60×30(H)
ConnectorLEMO 7P (Preamplifier voltage+28V、Polarization voltage 200V)

Frequency characteristics

Preamplifier TYPE 4028

150,000Yen


Artificial ear TYPE 201

300,000Yen


Block chart
Specification
Applicalbe StandardIEC 60318-4(former 60711)/ITU-T Rec. P57
TypeEar Simulator TYPE 2128E
Microphone TYPE 7313 (built-in, sound pressure type)
Sound pressure sensitivity-39dB re 1V/Pa (11.2mV/Pa)(included preamplifier TYPE 4152)
Polarizing voltage0V
Frequency characteristics100Hz~10kHz
Resonance frequency13.8kHz±1kHz
Tolerance1.28cm³±0.03cm³
Size and Weightφ23.77×23 (Projection 20) Approx.70g (Included microphone)
Measuring range40~140dB
Preamplifier sizeTYPE 4152 φ12.7×60(H)
ConnectorBNC (Power supply and voltage 15V、Constant current 0.5mA)

Frequency characteristics
Preamplifier TYPE 4152

20,000Yen

Preamplifier TYPE 4028E

20,000Yen


Block chart