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Orientador(es)
Resumo(s)
This paper presents a simple and cost effective
solution of a semi-anechoic chamber suitable for the acoustic noise
characterization of a Linear Switched Reluctance Actuator
(LSRA). Using simple construction and assembling techniques, and
low-cost materials, it allows significant acoustic isolation
characteristics from the environmental noise, caused by people´s
activities, other machinery operation, etc. The average attenuation
achieved is better than 30 dB for a noise source placed at 1 meter
distance from its walls. The overall test results demonstrate an
affordable yet effective semi-anechoic chamber solution, and prove
its adequacy for the specific purpose of characterizing a LSRA in
terms of the acoustic noise produced.
Descrição
Palavras-chave
Acoustics Noise characterization Semi-anechoic Chamber Switched reluctance actuators