BS EN IEC 61265:2018 - Electroacoustics. Instruments for measurement of aircraft noise. Performance requirements for systems to measure sound pressure levels in noise certification of aircraft

BS EN IEC 61265:2018

Electroacoustics. Instruments for measurement of aircraft noise. Performance requirements for systems to measure sound pressure levels in noise certification of aircraft

Status : Current   Published : August 2018

Format
PDF

Format
HARDCOPY



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
TitleElectroacoustics. Instruments for measurement of aircraft noise. Performance requirements for systems to measure sound pressure levels in noise certification of aircraft
StatusCurrent
Publication Date24 August 2018
Normative References(Required to achieve compliance to this standard)IEC 60942, IEC 61672-1, IEC 61260-1
Informative References(Provided for Information)IEC 61326-1:2012, ISO/IEC Guide 98-4:2012, IEC 61094-4, IEC 61000-4-3, IEC 61000-4-2, ISO/IEC Guide 98 (all parts)
ReplacesBS EN 61265:1995, IEC 61265:1995
International RelationshipsEN IEC 61265:2018,IEC 61265:2018
Draft Superseded By17/30343465DC
DescriptorsCertification (approval), Microphones, Performance testing, Noise (environmental), Approval testing, Tolerances (measurement), Environment (working), Testing conditions, Test equipment, Sensitivity, Acoustic measurement, Frequencies, Acoustic equipment, Frequency response, Electronic equipment and components, Aircraft engines, Performance, Aircraft
ICS17.140.30
17.140.50
49.020
Title in FrenchElectroacoustique. Instruments pour la mesure du bruit des aéronefs. Exigences relatives aux systèmes de mesure des niveaux de pression acoustique pour la certification acoustique des aéronefs
Title in GermanElektroakustik. Geräte zur Messung des Geräuschs von Luftfahrzeugen. Anforderungen an die Eigenschaften von Systemen zur Messung von Schalldruckpegeln bei der Zertifizierung von Luftfahrzeugen
CommitteeEPL/29
ISBN978 0 580 94660 8
PublisherBSI
FormatA4
DeliveryYes
Pages30
File Size1.01 MB
Price£182.00


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