Sound Power ISO 9614
Field of Application:
Sound power measurements in reverberation chambers or under free-field conditions are often infeasible for reasons of cost or due to the location of the sound source. However, measurement of the sound power by intensity methods offers an alternative. The ISO 9614 standard defines two such methods, which allow satisfactory results to be obtained even under less favorable acoustic conditions (e.g. extraneous noise).
The SOUND INTENSITY 2 option allows sound power determination of noise sources from sound intensity measurements according to ISO 9614 Part 1 (Measurement at discrete points) and Part 2 (Measurement by scanning).
A clearly laid-out graphical program interface guides the user through the whole measurement procedure (configuring the measurement system, splitting into measurement segments, performing the individual measurements etc.), incorporating the field indicators (quality criteria) according to the norm.
IEC 61043: Class 1; Electroacoustics; instruments for the measurement of sound intensity; measurement with pairs of pressure sensing microphones
ISO 9614-1: Acoustics; determination of sound power levels of noise sources using sound intensity; part 1: measurement at discrete points
ISO 9614-2: Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning
ISO 9614-3: Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method class 1 for measurement by scanning
ANSI-S12-12: Engineering Method for the Determination of Sound Power Levels of Noise Sources Using Sound Intensity
ECMA-160: Determination of Sound Power Levels of Computer and Business Equipment using Sound Intensity Measurements; Scanning Method in Controlled Rooms
|Accuracy||IEC 61043 Class 1|
|Sensors||Intensity probes with microphone pair|
|Measurement range||ISO 9614 mode: 80 Hz to 6,3 kHz; custom mode: 50 Hz to 10 kHz|
This software option require a valid SAMURAI license and the SAMURAI option SOUND INTENSITY 1, which provides the intensity spectra.