Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Survey method using an enveloping measurement surface over a reflecting plane

2010 ◽  
Keyword(s):  
Sound Pressure ◽  
Energy Levels ◽  
Survey Method ◽  
Sound Power ◽  
Noise Sources ◽  
Sound Energy ◽  
Measurement Surface

'Attack of the Drones' Exploration of Sound Power Levels Emitted and the Impact Drone's could have upon Rural Areas, Roxwell, Essex, UK

2021 ◽  
Vol 263 (5) ◽  
pp. 1462-1470
Author(s):  
Josephine Nixon ◽  
Stephen Dance
Keyword(s):  
Acoustic Emission ◽  
Rural Areas ◽  
Sound Pressure ◽  
Energy Levels ◽  
Rotor Blades ◽  
Rural Setting ◽  
Sound Power ◽  
Noise Sources ◽  
The Impact

This study considers the acoustic emission from a DJi Phantom 4 commercial drone using different rotor blades. Measurements were taken from a hovering drone with four commercial product blade configurations. Measurements were taken in accordance with (BS) EN ISO 3745: 2009 'Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms'. The aim of the project was to consider the sound characteristics emitted, specifically tonality and to determine the distance a drone could be heard from, with the different blade configurations, in a rural setting. By considering the different blade configurations within a rural setting, the role drones have within society is considered.

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