Найдено: 2
Overview ISO 9614-3:2002 - Acoustics: Determination of sound power levels using sound intensity - Part 3 specifies a precision method for measurement by scanning. The standard defines how to measure…
1 Scope 1.1 This part of ISO 9614 specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the sound source(s) of which the s…