EP 3615906 A1 20200304 - METHOD FOR DETECTING A STATE OR A MALFUNCTION BY VIBRATORY ANALYSIS
Title (en)
METHOD FOR DETECTING A STATE OR A MALFUNCTION BY VIBRATORY ANALYSIS
Title (de)
VERFAHREN ZUR DETEKTION EINES ZUSTANDS ODER EINER FEHLFUNKTION DURCH SCHWINGUNGSANALYSE
Title (fr)
SYSTEME DE DETECTION D'UN ETAT OU D'UN DYSFONCTIONNEMENT PAR ANALYSE VIBRATOIRE
Publication
Application
Priority
- FR 1753518 A 20170424
- EP 2018060390 W 20180423
Abstract (en)
[origin: WO2018197440A1] The present invention relates to a system (S1, S2) for detecting a state or a malfunction of an assembly comprising a structure, said system (S1, S2) comprising a device for sensing vibrations of the structure (P, C), said device for sensing vibrations of the structure (P, C) comprising at least one piezoelectric sensor mechanically connected with said structure (P, C), said system (S1, S2) further comprising means for recording a signal representative of the vibrations of the structure (P, C) and means for processing said signal in order to detect a state or a malfunction of the assembly, said processing means comprising means for transforming said signal in order to form a spectrum representative of the state or the malfunction, the system further comprising means for comparing said spectrum with a plurality of patterns respectively characteristic of a state or a malfunction of the assembly, in such a way as to identify the state or the malfunction of the assembly.
IPC 8 full level
G01M 5/00 (2006.01); G01H 11/08 (2006.01); G01M 7/00 (2006.01)
CPC (source: EP)
G01H 1/00 (2013.01); G01H 11/08 (2013.01); G01M 5/0025 (2013.01); G01M 5/0066 (2013.01); G01M 7/00 (2013.01)
Citation (search report)
See references of WO 2018197440A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3065526 A1 20181026; FR 3065526 B1 20190719; EP 3615906 A1 20200304; WO 2018197440 A1 20181101
DOCDB simple family (application)
FR 1753518 A 20170424; EP 18724145 A 20180423; EP 2018060390 W 20180423