EP 1417457 A2 20040512 - DETECTION DEVICE
Title (en)
DETECTION DEVICE
Title (de)
DETEKTIONSEINRICHTUNG
Title (fr)
DISPOSITIF DE DETECTION
Publication
Application
Priority
- EP 02794567 A 20020806
- EP 0208814 W 20020806
- EP 01203020 A 20010808
Abstract (en)
[origin: EP1283409A1] Two transformers (T1,T2) which have open magnetic circuits are located side by side and perpendicularly to the path of an object (4) which is to be detected. The transformer primary windings are connected in series and supplied from a 3-6 Khz source (8) and the secondary response from windings also connected in series is measured by a detector unit (9). The passage and direction of the object is revealed by the changes in magnetic reluctance
IPC 1-7
IPC 8 full level
CPC (source: EP US)
G01D 5/2013 (2013.01 - EP US); G01D 5/2266 (2013.01 - EP US)
Citation (search report)
See references of WO 03014675A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1283409 A1 20030212; AU 2002333357 A1 20030224; EP 1417457 A2 20040512; JP 2004537735 A 20041216; US 2004169507 A1 20040902; US 7132825 B2 20061107; WO 03014675 A2 20030220; WO 03014675 A3 20030731
DOCDB simple family (application)
EP 01203020 A 20010808; AU 2002333357 A 20020806; EP 0208814 W 20020806; EP 02794567 A 20020806; JP 2003519359 A 20020806; US 48626904 A 20040209