共找到 150 條與 反射平面 相關的標準，共 10 頁
1.1 Generalidades La presente norma especifica métodos de peritaje para medir niveles de presión acústica sobre una superficie de medida que
acoustics. Determination of the intensity level of the noise emitted by a noise source (by means of the external method on a reflecting plane in an open area)
Acoustics. Determination of sound power levels of noise sources using sound prssure. Engineering method in an essentially free field over a reflecting plane.
Noise of machine. Determination of power levels of noise sources using sound pressure. Survey method using an enveloping measurement surface over a reflecting plane
Cross References: 98/37/EC 2006/42/EC
BS EN ISO 3745. Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane
Versione ufficiale in lingua italiana della norma europea EN ISO 3744 (edizione settembre 1995). Specifica un metodo per misurare i livelli di
Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane.
この規(guī)格は，騒音源から発生する音の音響バワーレべル又は音響エネルギーレべルを算出するために，無響室又は半無昇室において騒音源を囲む測定面上で音圧レべルを測定する方法を規(guī)定する
Acoustics -- Determination of sound power levels of noise sources using sound pressure -- Engineering method in an essentially free field over a reflecting plane
Cross References: ISO 3740 ISO 3741 ISO 3742 ISO 3743-1 ISO 3743-2 ISO 7574-2 ISO 7574-3 ISO 9296 ISO 9614-1 ISO 9614-2 ISO 12001 IEC
Acoustics. Determination of sound power levels of noise sources using sound pressure. Survey method using an enveloping measurement surface over a reflecting plane
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane.
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO/DIS 3744:2023)
This standard specifies methods for determining the sound power level or sound energy level ofa noise source from sound pressure levels measured
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010); German version EN ISO 3744:2010 / Note: To be rep...
Specifies procedures for measuring the sound pressure levels on a measurement surface enveloping the source and for calculating the required quantity.
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane
La presente norma è la versione ufficiale della norma europea EN ISO 3744(edizione ottobre 2010). La norma specifica i metodi per la
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
Determination of sound power levels of noise sources using sound pressure - Survey method using an enveloping mesurement surface over a reflecting plane (ISO 3746:1995)
BS EN ISO 3744. Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane
