TYPE 4157

Artificial Ear/Ear Simulator (IEC 60318-4 coupler with microphone and preamplifier)

Designed for measurements on earphones coupled to the ear by ear inserts such as tubes or ear moulds or eartips

見積もり依頼

The Ear Simulator Type 4157 closely reproduces the acoustical parameters of the human ear, presenting the insert earphone under test with an impedance approximating that of the real human ear.

USE SCENARIOS

  • Frequency response, sensitivity and distortion measurements on insert earphones, e.g. used in hearing aids, operator headsets, etc.
  • Servicing of hearing aids
  • Production testing of earphones