EP 2841932 A1 20150304 - METHOD AND ARRANGEMENT FOR MEASURING BLOWING STRUCTURES OF A PRESTRESSED DISC
Title (en)
METHOD AND ARRANGEMENT FOR MEASURING BLOWING STRUCTURES OF A PRESTRESSED DISC
Title (de)
VERFAHREN UND ANORDNUNG ZUR MESSUNG VON BLASSTRUKTUREN EINER VORGESPANNTEN SCHEIBE
Title (fr)
PROCÉDÉ ET DISPOSITIF DE MESURE DE STRUCTURES DE SOUFFLAGE D'UNE VITRE PRÉCONTRAINTE
Publication
Application
Priority
- EP 12165122 A 20120423
- EP 2013057469 W 20130410
- EP 13714948 A 20130410
Abstract (en)
[origin: WO2013160105A1] The present invention relates to a method for measuring blowing structures of a prestressed disc (1), wherein at least (a) at least one analysis area (4) of the disc (1) is irradiated with linearly polarized light (5) from a radiation source (2) at an angle of incidence (thetaE) and an image (6) at least of the analysis area (4) is recorded at an observation angle (thetaA) using at least one detector (3), (b) the image (6) is supplied to an evaluation unit (7), and (c) the evaluation unit (7) is used (c1) to read a brightness profile (8) along an analysis line (9) on the image (6), (c2) to determine the local maxima (15) and the local minima (16) of the brightness profile (8), and (c3) to determine an intensity index (IBS) by means of the difference between a brightness average value (Mmax) of the local maxima and a brightness average value (Mmin) of the local minima.
IPC 8 full level
G01N 21/896 (2006.01); G01L 1/24 (2006.01); G01N 21/958 (2006.01)
CPC (source: EP KR US)
G01L 1/241 (2013.01 - EP KR US); G01N 21/8806 (2013.01 - EP KR US); G01N 21/896 (2013.01 - EP KR US); G01N 21/958 (2013.01 - EP KR US); G01N 33/386 (2013.01 - EP KR US); G01N 2021/8848 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2013160105A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013160105 A1 20131031; CN 104272091 A 20150107; EP 2841932 A1 20150304; JP 2015515631 A 20150528; KR 20140132773 A 20141118; US 2015036120 A1 20150205; US 9207186 B2 20151208
DOCDB simple family (application)
EP 2013057469 W 20130410; CN 201380021407 A 20130410; EP 13714948 A 20130410; JP 2015507455 A 20130410; KR 20147029301 A 20130410; US 201314380245 A 20130410