Norm

NPR-ISO/TS 7849-2:2009 en

Akoestiek - Bepaling van het niveau van de sterkte van het luchtgeluid uitgestraald door machines door meting van trillingen - Deel 2: Methode inclusief de bepaling van de stralingsfactor

124,99

Over deze norm

Status Definitief
Aantal pagina's 27
Commissie Akoestiek
Gepubliceerd op 01-04-2009
Taal Engels
This part of ISO/TS 7849 gives basic requirements for a reproducible method for the determination of the sound power level of the noise emitted by machinery or equipment by using surface vibration measurements, together with the knowledge of the machinery specific sound radiation factor in the frequency bands. The method is only applicable to noise which is emitted by vibrating surfaces of solid structures and not to noise generated aerodynamically. This vibration measurement method is especially applicable in cases where accurate direct airborne noise measurements, e.g. as specified in ISO 3746[7], ISO 3747[8], and ISO 9614 (all parts)[14], are not possible because of high background noise or other parasitic environmental interferences; or, if a distinction is required between the total radiated sound power and its structure vibration generated component. The methods described in this part of ISO/TS 7849 apply mainly to processes that are stationary with respect to time. Recommendations on the selection of frequency bands are given in Annex C.

Details

ICS-code 17.140.20
Nederlandse titel Akoestiek - Bepaling van het niveau van de sterkte van het luchtgeluid uitgestraald door machines door meting van trillingen - Deel 2: Methode inclusief de bepaling van de stralingsfactor
Engelse titel Acoustics - Determination of airborne sound power levels emitted by machinery using vibration measurement - Part 2: Engineering method including determination of the adequate radiation factor
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