IEC 61265-2018
Electroacoustics - Instruments for Measurement of Aircraft Noise - Performance Requirements for Systems to Measure One-Third-Octave Band Sound Pressure Levels in Noise Certification of Transport-Category Aeroplanes (Edition 2.0)

Electroacoustique - Instruments Pour La Mesure Du Bruit Des Aeronefs - Prescriptions Relatives Aux Systemes de Mesure Des Niveaux De Pression Acoustique Par Tiers D?Octave@ Pour La Certification Acoustique Des Avions De Transport (Edition 2.0)

标准号

IEC 61265-2018

发布日期

2018年05月01日

实施日期

2018年05月11日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

IEC - International Electrotechnical Commission

引用标准

54

适用范围

This document 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.