EP 1412737 A1 20040428 - DEFECT IDENTIFICATION IN BODIES CONSISTING OF BRITTLE MATERIAL
Title (en)
DEFECT IDENTIFICATION IN BODIES CONSISTING OF BRITTLE MATERIAL
Title (de)
FEHLERERKENNUNG IN KÖRPERN AUS SPRÖDEN MATERIALIEN
Title (fr)
DETECTION DE DEFAUTS DANS DES CORPS EN MATERIAUX FRAGILES
Publication
Application
Priority
- DE 0202529 W 20020710
- DE 10133510 A 20010710
Abstract (en)
[origin: DE10133510C1] The invention relates to a non-linear method, which permits a simple, rapid and precise defect identification in a body consisting of brittle materials. According to said method, the body is subjected (1a, 2b) to acoustic vibrations of different intensities in at least two temporally staggered operations (A, B), a vibration response of the body is recorded (2a, 2b) in the time range, the vibration response is normed (3a, 3b), the start of the vibration is determined (4a, 4b) and a section of the vibration response is determined (5a, 5b), the start of said section forming the previously determined start of the vibration and said section having a specific length. A correlation coefficient of the sections of the respective vibration responses of the two or more operations constitutes (6) a characteristic value for the defect identification.
IPC 1-7
IPC 8 full level
G01N 29/12 (2006.01); G01N 29/30 (2006.01); G01N 29/38 (2006.01); G01N 29/50 (2006.01)
CPC (source: EP US)
G01N 29/12 (2013.01 - EP US); G01N 29/30 (2013.01 - EP US); G01N 29/38 (2013.01 - EP US); G01N 29/50 (2013.01 - EP US); G01N 2291/0232 (2013.01 - EP US)
Citation (search report)
See references of WO 03006983A1
Designated contracting state (EPC)
AT CH DE ES FR GB LI
DOCDB simple family (publication)
DE 10133510 C1 20021128; EP 1412737 A1 20040428; US 2003167845 A1 20030911; WO 03006983 A1 20030123
DOCDB simple family (application)
DE 10133510 A 20010710; DE 0202529 W 20020710; EP 02754343 A 20020710; US 36391703 A 20030430