Acoustic investigation of vacuum cleaners

Absztrakt

The noises evolving from our environment can be defined as pollutants, as they can lead to the impairment of different environmental factors (e.g: air, soil, waters). Within environmental noise sources we differentiate between noises caused by industry or traffic. Noises emitted during flow and the noise of machinery is considered industrial noise, which are mainly emitted during the flow of fluid for gasses. The aerodinamical noise effects (e.g.: safety valves, compressors, ventillation systems, pneumatic machinery, vacuum cleaners) which were widespread with the development of different technologies are con-sidered to be the highest intensity noise sources. In this article we focus on the investi-gation of the noises emitted by household machinery, specifically vacuum cleaners.