EP 0849608 A3 19980819 - Device for determining the position of the edge of a moving belt
Title (en)
Device for determining the position of the edge of a moving belt
Title (de)
Vorrichtung zur Bestimmung der Lage des Randes eines laufenden Bandes
Title (fr)
Dispositif pour déterminer le bord d'une bande en déplacement
Publication
Application
Priority
DE 19653312 A 19961220
Abstract (en)
[origin: DE19653312C1] The sensor (3) has a rotary mirror (18) which deflects a beam (15) from a radiation source (5) across the direction of the belt's (1) travel, and scans an observation field. A retro-reflex beam (24) reflected on the retro-reflector is detected by a receiver (28). A second beam (21) hits the rotary mirror at a second impact point (R2) spaced apart from the first impact point (R1) of the first beam. The second retro-reflex beam (29) reflected from the impact point of the second beam on the retro-reflector (4) is detected by a second (33) or by the same receiver. The signals of the second retro-reflex beam in the evaluation circuit for determining a second position date of the edge of the belt, together with the first position date, serve to determine the spatial position.
IPC 1-7
IPC 8 full level
B65H 23/02 (2006.01)
CPC (source: EP)
B65H 23/0216 (2013.01)
Citation (search report)
- [AD] US 4788441 A 19881129 - LASKOWSKI EDWARD L [US]
- [A] US 4021031 A 19770503 - MEIHOFER EDWARD F, et al
- [A] US 4523093 A 19850611 - NEUMANN DON B [US]
- [A] DE 1191591 B 19650422 - LICENTIA GMBH
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19653312 C1 19980402; EP 0849608 A2 19980624; EP 0849608 A3 19980819
DOCDB simple family (application)
DE 19653312 A 19961220; EP 97120897 A 19971128