GRAS Announces Standardization of RA0252 Coupler According to IEC Standard 60318-8:2022

June 10 2022, 05:10
GRAS Sound & Vibration announced that its line of production line tools for high-frequency measurements now includes the only 0.4cc couplers that follow the most recent IEC standards, offering a cost-efficient validation tool in the frequency range up to 16 kHz that adheres to standards. The latest IEC standard 60318-8 2022 describes an acoustic coupler for loading a hearing aid or insert earphone with a specified acoustic impedance when testing its acoustic performance, in the frequency range up to 16 kHz.
 

GRAS has a strong portfolio of acoustic couplers and ear simulators, and the RA0252 coupler as well as the GRAS 43BA with a 1/4" microphone and preamplifier, have been available for quite some time. However, with the latest standard, hearing aid manufacturers can now be confident that also when testing in the 8-16 kHz frequency range, they are able to follow the requirements in a production line setup. "This marks another important step in our effort to be able to offer our hearing aid customers cost-efficient measurement solutions that create confidence along the entire measurement chain”, says Brian Johansen, Senior Acoustic Engineer at GRAS Sound & Vibration.

The 43BA is available in both a LEMO version, a CCP version as well as a high sensitivity CCP version. Both the RA0252 and the 43BA are compatible with existing 2cc couplers, including custom-built fitting adaptors. 

GRAS Sound & Vibration develops and manufactures state-of-the-art measurement microphones and related equipment for industries where acoustic measuring accuracy and repeatability are of the utmost importance. This includes applications and solutions for aerospace, automotive, audiology, consumer electronics and other highly demanding industries.

GRAS Sound & Vibration is part of Axiometrix Solutions the new test and measurement solutions group that now also includes Audio Precision and imc Test & Measurement, represented through subsidiaries and distributors in more than 40 countries. 
www.GRASacoustics.com
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