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公开(公告)号：EP0698262B1
公开(公告)日：1997-07-30
申请号：EP94913756.6
申请日：1994-05-03
发明人： ELLWOOD, Stephen , APPLEBY, David
IPC分类号： G08B29/14
CPC分类号： B65D83/30 , B65D83/262 , G08B29/145
摘要： Apparatus for testing the sensitivity of a smoke detector (12) in-situ, includes a head assembly (1) comprising a housing (14) for surrounding a smoke detector in-situ and forming part of means (14, 15, 16, 17) defining a path through which air carrying an aerosol will, in operation, circulate, sensor means (25, 26, 27) for sensing the concentration of aerosol in the air circulating in the path, air circulating means (20) for causing air to circulate in the path, aerosol supply means (24) for supplying aerosol to the path and control means for controlling the concentration of aerosol in the air circulating in the path by controlling the air circulating means and the aerosol supply means in dependence on the output of the sensing means.
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公开(公告)号：EP0698262A1
公开(公告)日：1996-02-28
申请号：EP94913756.0
申请日：1994-05-03
发明人： ELLWOOD, Stephen , APPLEBY, David
CPC分类号： B65D83/30 , B65D83/262 , G08B29/145
摘要： Apparatus for testing the sensitivity of a smoke detector (12) in-situ, includes a head assembly (1) comprising a housing (14) for surrounding a smoke detector in-situ and forming part of means (14, 15, 16, 17) defining a path through which air carrying an aerosol will, in operation, circulate, sensor means (25, 26, 27) for sensing the concentration of aerosol in the air circulating in the path, air circulating means (20) for causing air to circulate in the path, aerosol supply means (24) for supplying aerosol to the path and control means for controlling the concentration of aerosol in the air circulating in the path by controlling the air circulating means and the aerosol supply means in dependence on the output of the sensing means.
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