EP 2656114 A2 20131030 - CABLE DETECTOR
Title (en)
CABLE DETECTOR
Title (de)
LEITUNGSSUCHER
Title (fr)
CHERCHEUR DE LIGNES
Publication
Application
Priority
- DE 102010063546 A 20101220
- EP 2011069539 W 20111107
Abstract (en)
[origin: WO2012084329A2] The invention relates to a measuring device for detecting a conductor that carries alternating voltage, comprising a voltage source for producing two phase-shifted alternating voltages, two complex impedance elements having first connections, which are connected to the alternating voltages, and second connections, which are connected to each other and to which a differential voltage is applied, and a control device for controlling the alternating voltages in such a way that a component of the differential voltage synchronous with the alternating voltages is minimized in magnitude. The control device is designed to detect the conductor if the ratio of the alternating voltages does not correspond to a ratio of the complex impedance elements in the absence of the conductor. The second complex impedance element can be changed by means of a control voltage, and a probe for providing the control voltage as a function of an alternating electromagnetic field induced by the conductor is provided.
IPC 8 full level
G01V 3/06 (2006.01)
CPC (source: EP US)
G01R 29/08 (2013.01 - US); G01V 3/06 (2013.01 - EP US); G01V 3/08 (2013.01 - US); G01V 3/081 (2013.01 - US); G01R 33/0005 (2013.01 - US)
Citation (search report)
See references of WO 2012084329A2
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
DOCDB simple family (publication)
WO 2012084329 A2 20120628; WO 2012084329 A3 20121220; CN 103261918 A 20130821; CN 103261918 B 20160203; DE 102010063546 A1 20120621; EP 2656114 A2 20131030; RU 2013133694 A 20151110; US 2013342218 A1 20131226; US 9372217 B2 20160621
DOCDB simple family (application)
EP 2011069539 W 20111107; CN 201180061184 A 20111107; DE 102010063546 A 20101220; EP 11793352 A 20111107; RU 2013133694 A 20111107; US 201113995706 A 20111107