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1. (WO2003056360) METHOD AND ALGORITHM FOR USING SURFACE WAVES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2003/056360    International Application No.:    PCT/CA2002/002013
Publication Date: 10.07.2003 International Filing Date: 23.12.2002
IPC:
G01V 1/28 (2006.01)
Applicants: UNIVERSITE DE SHERBROOKE [CA/CA]; Bureau de liaison entreprises-Université Sherbrooke, Québec J1K 2R1 (CA) (For All Designated States Except US).
LEFEBVRE, Guy [CA/CA]; (CA) (For US Only).
BENHASSEN, Mourad, Karray [TN/CA]; (CA) (For US Only)
Inventors: LEFEBVRE, Guy; (CA).
BENHASSEN, Mourad, Karray; (CA)
Agent: OGILVY RENAULT; Suite 1600 1981 McGill College Avenue Montréal, Québec H3A 2Y3 (CA)
Priority Data:
2,365,336 21.12.2001 CA
Title (EN) METHOD AND ALGORITHM FOR USING SURFACE WAVES
(FR) METHODE ET ALGORITHME D'UTILISATION DES ONDES DE SURFACE
Abstract: front page image
(EN)The invention concerns a method and an algorithm for using surface waves. In particular the method uses mode separation and, by means of the dispersion curve of more than one mode in the inversion process, enables to determine a propagation speed gain of shear waves which, with the Poisson ratio gain, constitutes a unique solution and a complete characterization of an environment concerning its elastic properties.
(FR)Une méthode et un algorithme permettant l'utilisation des ondes de surfaces. En particulier, la méthode utilise la séparation des modes et, au moyen de la courbe de dispersion de plus d'un mode dans le processus d'inversion, permet la détermination d'un profit de vitesse de propagation des ondes de cisaillement qui, avec le profit du coefficient de Poisson, constitue une solution unique et une caractérisation complète d'un milieu du point de vie de ses propriétés élastiques.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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, IE, IT, LU, MC, NL, PT, 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)