EP 1027599 A1 20000816 - ERROR DETECTION DEVICE WITH ULTRASONIC SIGNALS FOR CONTINUOUS PLASTIC STRIPS, PROFILES OR TUBES
Title (en)
ERROR DETECTION DEVICE WITH ULTRASONIC SIGNALS FOR CONTINUOUS PLASTIC STRIPS, PROFILES OR TUBES
Title (de)
EINRICHTUNG ZUR FEHLERERFASSUNG BEI DURCHLAUFENDEN BÄNDERN, PROFILEN ODER ROHREN AUS KUNSTSTOFF MIT ULTRASCHALLSIGNALEN
Title (fr)
DISPOSITIF DE DETECTION DE DEFAUTS PAR SIGNAUX ULTRASONS POUR BANDES, PROFILES OU TUBES EN MATIERE PLASTIQUE EN DEPLACEMENT CONTINU
Publication
Application
Priority
- DE 19747637 A 19971029
- EP 9806807 W 19981027
Abstract (en)
[origin: DE19747637A1] The invention relates to an error device with ultrasonic signals for continuous plastic strips, profiles or tubes. Stationary measuring heads are arranged and spread out along the width of the strip or on the circumference of the tube. Said measuring heads inject ultrasonic signals into the plastic and pick up reflected signals. The number of evaluation-relevant signals is reduced by mathematical combination of subtraction and addition steps.
IPC 1-7
IPC 8 full level
B29C 47/92 (2006.01); B29C 47/96 (2006.01); B29C 48/92 (2019.01); B29C 48/96 (2019.01); G01B 17/02 (2006.01); G01N 29/04 (2006.01); G01N 29/26 (2006.01); G01N 29/27 (2006.01)
CPC (source: EP)
B29C 48/92 (2019.01); B29C 48/96 (2019.01); G01N 29/27 (2013.01); B29C 48/07 (2019.01); B29C 48/09 (2019.01); B29C 2948/92247 (2019.01); B29C 2948/92447 (2019.01); B29C 2948/92647 (2019.01); B29C 2948/9279 (2019.01); B29C 2948/92942 (2019.01); G01N 2291/044 (2013.01); G01N 2291/104 (2013.01); G01N 2291/2692 (2013.01)
Citation (search report)
See references of WO 9922233A1
Designated contracting state (EPC)
AT CH DE DK FR GB IT LI NL
DOCDB simple family (publication)
DE 19747637 A1 19990512; DE 19747637 C2 19990930; EP 1027599 A1 20000816; JP 2001521170 A 20011106; WO 9922233 A1 19990506
DOCDB simple family (application)
DE 19747637 A 19971029; EP 9806807 W 19981027; EP 98955524 A 19981027; JP 2000518276 A 19981027