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 standard defines two such methods, which allow satisfactory results to be obtained even under less favorable acoustic conditions e. 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. Figure 2: Allocation of the measurement area onto digital photographs of the whole sound source.
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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 standard defines two such methods, which allow satisfactory results to be obtained even under less favorable acoustic conditions e. 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.
Figure 2: Allocation of the measurement area onto digital photographs of the whole sound source. IEC Class 1; Electroacoustics; instruments for the measurement of sound intensity; measurement with pairs of pressure sensing microphones. ISO Acoustics; determination of sound power levels of noise sources using sound intensity; part 1: measurement at discrete points.
ISO Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning. ISO Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method class 1 for measurement by scanning. Impressum Datenschutz Sitemap Login. Downloads Hardware maintenance Repair submissions Customized training Service address.
Sound Power ISO Accuracy IEC Class 1 Sensors Intensity probes with microphone pair Measurement range ISO mode: 80 Hz to 6,3 kHz; custom mode: 50 Hz to 10 kHz Features Measurement at discrete points or by scanning Freely selectable segmentation and measurement sequence Field checking Steady-state checking Sound pressure, intensity and power spectra Spectra for sound power of the entire surface as well as partial sound pressure of the individual surfaces Calculation of the F1, F2, F3 and F4 field indicators as well as checking of the criteria according to ISO Color mapping of sound pressure, intensity and power spectra over all partial surface.
Note product. Measurement at discrete points or by scanning Freely selectable segmentation and measurement sequence Field checking Steady-state checking Sound pressure, intensity and power spectra Spectra for sound power of the entire surface as well as partial sound pressure of the individual surfaces Calculation of the F1, F2, F3 and F4 field indicators as well as checking of the criteria according to ISO Color mapping of sound pressure, intensity and power spectra over all partial surface.
ASTM C145 PDF
Sound Power 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 noise source s of which the sound power level is to be determined. The one-octave, one-third-octave or band-limited weighted sound power level is calculated from the measured value. The method is applicable in situ or in special purpose test environments to any source for which a physically stationary measurement surface can be defined, and on which the noise generated by the source is stationary in time. Check out our FAQs. Buy this standard. Therefore this version remains current. CHF Buy.
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