Sound Power Measurement Solution
Dewesoft sound power measurement solution merges the best of both worlds, widely established sound power measurements with familiar, distinctive user interface and industry unmatched adaptability. Rate and compare different noise sources with ease and exactness while simultaneously monitor any number of additional parameters.
Dewesoft sound power measurement solution merges the best of both worlds, widely established sound power measurements with familiar, distinctive user interface and industry unmatched adaptability. Rate and compare different noise sources with ease and exactness while simultaneously monitor any number of additional parameters.
Sound Power Supported Standards
Sound power is a characteristic of a sound source and it does not depend on the distance from the source. Therefore, sound power i the only practical way of comparing different sound sources.
The sound power procedure is described with standards. They define types of noise and noise sources, test environment, measurement uncertainty, criteria for background noise, criteria for air temperature and humidity, instrumentation equipment, the position of microphones.
ISO 3741 - Specifies precision methods for determining the sound power level of a noise source from sound pressure levels measured in a reverberation test room
ISO 3744/639x - Specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise source
ISO 3745 - Specifies various methods for determining the sound power levels and sound energy levels of noise sources including machinery, equipment and their sub-assemblies
Sound power is a characteristic of a sound source and it does not depend on the distance from the source. Therefore, sound power i the only practical way of comparing different sound sources.
The sound power procedure is described with standards. They define types of noise and noise sources, test environment, measurement uncertainty, criteria for background noise, criteria for air temperature and humidity, instrumentation equipment, the position of microphones.
ISO 3741 - Specifies precision methods for determining the sound power level of a noise source from sound pressure levels measured in a reverberation test room
ISO 3744/639x - Specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise source
ISO 3745 - Specifies various methods for determining the sound power levels and sound energy levels of noise sources including machinery, equipment and their sub-assemblies
Step-by-Step Measurement Procedure
The sound power measurement procedure is guided by the simple user interface of our Dewesoft data acquisition software.
First, you record the background noise while the sound source is off. After that, you turn on the sound source and measure the sound power level of the source. If you use the grouping of the sensor or multiple runs, repeat the procedure for each group.
The sound power measurement procedure is guided by the simple user interface of our Dewesoft data acquisition software.
First, you record the background noise while the sound source is off. After that, you turn on the sound source and measure the sound power level of the source. If you use the grouping of the sensor or multiple runs, repeat the procedure for each group.
Correction Factors
Correction factors are used to take into account the background noise, the influence of the room and meteorological corrections.
K1 defines the background noise correction. This is applied in different situations. K1 can be measured before switching on the sound source.
K2 corrects the influence of the room noise. K2 correction is applied to the mean (energy average) of the time-averaged sound pressure levels over all the microphone positions on the measurement surface, to account for the influence of reflected or absorbed sound.
C1 and C2 meteorological corrections are used in the case that the air temperature at the test site is below 23 deg C or the altitude is higher than 500 meters above sea level.
Correction factors are used to take into account the background noise, the influence of the room and meteorological corrections.
K1 defines the background noise correction. This is applied in different situations. K1 can be measured before switching on the sound source.
K2 corrects the influence of the room noise. K2 correction is applied to the mean (energy average) of the time-averaged sound pressure levels over all the microphone positions on the measurement surface, to account for the influence of reflected or absorbed sound.
C1 and C2 meteorological corrections are used in the case that the air temperature at the test site is below 23 deg C or the altitude is higher than 500 meters above sea level.
Remote Control Operation
Trigger the start and stop of the measurement automatically with assigning remote control channels.
An example of trigger channels would be using the light barriers that are triggered when the machine enters the area. You can use one trigger channel or different trigger channels.
Trigger the start and stop of the measurement automatically with assigning remote control channels.
An example of trigger channels would be using the light barriers that are triggered when the machine enters the area. You can use one trigger channel or different trigger channels.
Analysis Report Generation
After the sound power measurement has been done, you can easily export data into a prepared Excel template to automatically create your report.
You can easily modify the template with your company logo, information about the measurement, operator, date and location,.....
After the sound power measurement has been done, you can easily export data into a prepared Excel template to automatically create your report.
You can easily modify the template with your company logo, information about the measurement, operator, date and location,.....
