EP 2277054 A2 20110126 - DETECTION OF A VARIATION IN DISTANCE RELATIVE TO AN AXIS OF ROTATION
Title (en)
DETECTION OF A VARIATION IN DISTANCE RELATIVE TO AN AXIS OF ROTATION
Title (de)
ERKENNUNG VON DREHACHSENABSTANDSVARIATIONEN
Title (fr)
DETECTION DE VARIATION DE DISTANCE PAR RAPPORT A UN AXE DE ROTATION
Publication
Application
Priority
- FR 2009050783 W 20090428
- FR 0852919 A 20080430
Abstract (en)
[origin: WO2009138687A2] The invention relates to a method for detecting a variation in distance relative to an axis of at least one point of an object rotating around said axis by a terminal (1) in a position that is stationary relative to the axis (41) and capable of emitting a radiofrequency field to at least one resonant circuit (2) attached to the object. Said method includes the steps including measuring and recording, on the terminal side, a maximum value of a quantity representative of the coupling of an oscillating circuit of the terminal and said at least one resonant circuit; and detecting a variation in said periodic maximum.
IPC 8 full level
G01P 3/44 (2006.01); G01B 7/02 (2006.01); G01B 7/24 (2006.01)
CPC (source: EP US)
B60C 23/0413 (2013.01 - EP US); B60C 23/068 (2013.01 - EP US); G01B 7/023 (2013.01 - EP US); G01B 7/24 (2013.01 - EP US)
Citation (search report)
See references of WO 2009138687A2
Designated contracting state (EPC)
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 SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009138687 A2 20091119; WO 2009138687 A3 20100211; CN 102016602 A 20110413; CN 102016602 B 20130403; EP 2277054 A2 20110126; US 2011095769 A1 20110428; US 8552741 B2 20131008
DOCDB simple family (application)
FR 2009050783 W 20090428; CN 200980115300 A 20090428; EP 09746006 A 20090428; US 98988509 A 20090428