公开(公告)号：US3557376A

公开(公告)日：1971-01-19

申请号：US3557376D

申请日：1969-02-14

申请人： HONEYWELL INC

发明人： SENYK OREST J

IPC分类号： G01N21/15 ,  G01N21/26

CPC分类号： G01N21/15

摘要： A transparent film under tension is employed to provide a moving fluidtight seal over and about two opposite but longitudinal openings formed in the displaced wall of a flow tube containing moving matter that is to be continuously analyzed. This seal allows a different clean portion of the transparent film to be continuously brought over each of the aforementioned openings and thereby clean windows through which a source of radiant energy can be directed as this radiant energy is passed into and out of the moving matter in the flow tube and thence to an optical radiant energy detecting and analyzing utilitarian means, such as a turbidimeter.