EP 1064624 B1 20021009 - METHOD FOR VERIFYING THE STATE OF A DEVICE USED TO EXAMINE SHEET ITEMS
Title (en)
METHOD FOR VERIFYING THE STATE OF A DEVICE USED TO EXAMINE SHEET ITEMS
Title (de)
VERFAHREN ZUR ÜBERPRÜFUNG DES ZUSTANDES EINER VORRICHTUNG ZUR PRÜFUNG VON BLATTGUT
Title (fr)
PROCEDE POUR VERIFIER L'ETAT D'UN DISPOSITIF SERVANT A CONTROLER UN ARTICLE SE PRESENTANT SOUS LA FORME DE FEUILLES
Publication
Application
Priority
- DE 19901702 A 19990118
- EP 0000315 W 20000117
Abstract (en)
[origin: US6472670B1] The invention relates to a method for checking the state of an apparatus for testing sheet material having at least one illumination device, transparent measuring window and detector. For ascertaining the soiling of a measuring window according to the invention the latter is irradiated with UV light by an illumination device, the UV light transmitted through the measuring window being filtered by a UV filter such that only a small fraction passes the filter and reaches a detector. Said fraction of UV light transmitted through the filter is detected and evaluated for determining the degree of soiling of the measuring window.
IPC 1-7
IPC 8 full level
G07D 7/12 (2016.01)
CPC (source: EP US)
G07D 7/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6472670 B1 20021029; AT E225971 T1 20021015; AU 2437700 A 20000801; DE 19901702 A1 20000720; DE 50000614 D1 20021114; EP 1064624 A1 20010103; EP 1064624 B1 20021009; ES 2180510 T3 20030216; WO 0042578 A1 20000720
DOCDB simple family (application)
US 62349200 A 20001103; AT 00902599 T 20000117; AU 2437700 A 20000117; DE 19901702 A 19990118; DE 50000614 T 20000117; EP 0000315 W 20000117; EP 00902599 A 20000117; ES 00902599 T 20000117