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  • BSI
    BS EN IEC 61265:2018 - TC Tracked Changes. Electroacoustics. Instruments for measurement of aircraft noise. Performance requirements for systems to measure sound pressure levels in noise certification of aircraft
    Edition: 2020
    $466.58
    / user per year

Description of BS EN IEC 61265:2018 - TC 2020

IEC 61265:2018 specifies requirements for the electroacoustical performance of systems of instruments used to measure sound for the purposes of aircraft noise certification, and for other comparisons among aircraft models, and provides methods by which tests can be made periodically to verify that the performance continues to conform to the requirements within stated limits.
In general, a sound measurement system for this purpose comprises a combination of instruments extending from a microphone, including its windscreen and other accessories, through data recording and processing devices to a suitable output. Different measurement systems, regardless of their composition, perform the necessary functions in different ways and operate on either analogue or digital principles.
IEC 61265:2018 cancels and replaces the first edition published in 1995. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of guidance for measurements for aircraft other than large transport aeroplanes;
b) addition of microphones used in ground plane measurement systems;
c) addition of weighted sound level measurements other than one-third-octave band measurements, for certain aircraft types;
d) revision and clarification of requirements for digital audio recording;
e) addition of requirements for evaluation of measurement uncertainty.

Standard NumberBS EN IEC 61265:2018 - TC
TitleTracked Changes. Electroacoustics. Instruments for measurement of aircraft noise. Performance requirements for systems to measure sound pressure levels in noise certification of aircraft
StatusDefinitive
Publication Date2020-02-27
DescriptorsAircraft, Performance, Aircraft engines, Electronic equipment and components, Frequency response, Acoustic equipment, Frequencies, Acoustic measurement, Sensitivity, Test equipment, Testing conditions, Environment (working), Tolerances (measurement), Approval testing, Noise (environmental), Performance testing, Microphones, Certification (approval)
ICS17.140.50 Electroacoustics, 17.140.30 Noise emitted by means of transport, 49.020 Aircraft and space vehicles in general
CommitteeEPL/29
ISBN978 0 539 11604 5
PublisherBSI
Pages0

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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