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Machine translation
1. (WO2005121730) BEARING DEFORMATION SENSOR COMPRISING AT LEAST THREE SAMPLING GAUGES FOR A DISCRETE FOURIER TRANSFORMATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/121730    International Application No.:    PCT/FR2005/001105
Publication Date: 22.12.2005 International Filing Date: 03.05.2005
IPC:
G01L 5/00 (2006.01)
Applicants: S.N.R. ROULEMENTS [FR/FR]; 1, rue des Usines, F-74010 Annecy (FR) (For All Designated States Except US).
DURET, Christophe [FR/FR]; (FR) (For US Only).
BLANCHIN, Olivier [FR/FR]; (FR) (For US Only)
Inventors: DURET, Christophe; (FR).
BLANCHIN, Olivier; (FR)
Agent: BREESE DERAMBURE MAJEROWICZ; 38, avenue de l'Opéra, F-75002 Paris (FR)
Priority Data:
0404767 04.05.2004 FR
Title (EN) BEARING DEFORMATION SENSOR COMPRISING AT LEAST THREE SAMPLING GAUGES FOR A DISCRETE FOURIER TRANSFORMATION
(FR) ROULEMENT CAPTEUR DE DEFORMATIONS COMPRENANT AU MOINS TROIS JAUGES D'ECHANTILLONNAGE D'UNE TRANSFORMEE DE FOURIER DISCRETE
Abstract: front page image
(EN)The invention relates to a bearing with at least one system for determination of the amplitude (A) of pseudo-sinusoidal deformations in a region (7) of the fixed ring (1) generated on rotation, said system, comprising N stress gauges (8) where N = 3, each providing a signal as a function of the deformation said gauge is subjected to, said gauges being equally distributed over said region with a spacing of ?/N, where ?, is the angular gap between the roller bodies, a measuring device for the N signals (Vi) which are a function respectively of the variation with time of the signal provided by each gauge (8) and a device for calculation of the amplitude (A) of the deformations in the region (7) as a function of time, said device using a discrete Fourier transformation, the sample points of which are the N signals VI.
(FR)L'invention concerne un roulement comprenant au moins un système de détermination de l'amplitude A des déformations pseudo sinusoïdales d'une zone (7) de la bague fixe (1) induites lors de la rotation, ledit système comprenant N jauges (8) de contraintes avec N ≥ 3, délivrant chacune un signal fonction de la déformation subie par ladite jauge, lesdites jauges étant équiréparties sur ladite zone avec un espacement égal à &lgr;/N où &lgr;, est l'écart angulaire entre les corps roulants, un dispositif de mesure de N signaux Vi fonction respectivement des variations temporelles du signal émis par chaque jauge (8), et un dispositif de calcul de l'amplitude A des déformations de la zone (7) en fonction du temps, ledit dispositif utilisant une transformée de Fourier discrète dont les points d'échantillonnage sont les N signaux Vi
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)