A study on noise controlling of the electromagnetic valve in external counterpulsation devices / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
;
(6): 139-141, 2006.
Artigo
em Chinês
| WPRIM
| ID: wpr-355430
ABSTRACT
Noise of ECP (external counterpulsation) comes from the frequent movement of the electromagnetic valve iron core hitting the top of the valve body and the orifice of the bottom, and the high pressure and large air stream rubbing the orifice. This article studies the method to reduce mechanical noise of the electromagnetic valve core, that is to reduce the above movement energy and the hitting force. The method is used in ECP devices with grafying results. This noise controlling technology may reduce the noise of the electromagnetic valve from higher than 50dB to less than 25dB.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Software
/
Microcomputadores
/
Contrapulsação
/
Eletrônica
/
Desenho de Equipamento
/
Falha de Equipamento
/
Fenômenos Eletromagnéticos
/
Ruído
Limite:
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Medical Instrumentation
Ano de publicação:
2006
Tipo de documento:
Artigo
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