公开(公告)号：EP2001576A4

公开(公告)日：2009-07-15

申请号：EP07753799

申请日：2007-03-23

申请人： CORNING INC

发明人： GARGANO PATRICK M ,  RAJ BABAK R ,  RYSZYTIWSKYJ WILLIAM P ,  SPEECKAERT JOHN C ,  WORTHEY DAVID J

IPC分类号： B01D46/00 ,  B01D65/10 ,  F01N3/022 ,  G01N15/08

CPC分类号： G01N21/53 ,  B01D46/0086 ,  B01D46/2418 ,  B01D46/42 ,  B01D2273/26 ,  B01D2279/30 ,  F01N11/00 ,  G01N21/95692 ,  G01N2015/0846 ,  Y02T10/47

摘要： An apparatus (20) and method for detecting defects in a honeycomb body (100). In operation, the particulates emerge at an outlet en face ( 104) of the honeycomb body (100) through defects, if any, in the honeycomb walls and/or plugs and passes through a permeabl member (28), such as a screen, where they are illuminated. The permeable member (28) is disposed adjacent to and preferably in contact with the outlet end (104). Use of the permeable member improves the signal-to-noise ratio (SNR) such that defects may be more readily detected. The permeable member (28) preferably includes an anti-reflective surface.