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)
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- 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.