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1. (WO2010074874) METHOD AND SYSTEM FOR ESTIMATING CONTACT PATTERNS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/074874 International Application No.: PCT/US2009/065683
Publication Date: 01.07.2010 International Filing Date: 24.11.2009
IPC:
G01M 13/02 (2006.01) ,G01B 11/24 (2006.01)
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
13
Testing of machine parts
02
Testing of gearing or of transmission mechanisms
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11
Measuring arrangements characterised by the use of optical means
24
for measuring contours or curvatures
Applicants:
GENERAL ELECTRIC COMPANY [US/US]; 1 River Road Schenectady, NY 12345, US (AllExceptUS)
GEORGE, Sheri [IN/IN]; IN (UsOnly)
RAMASWAMY, Sivaramanivas [IN/IN]; IN (UsOnly)
BAJPAI, Abhinav, Ramnath [IN/US]; US (UsOnly)
Inventors:
GEORGE, Sheri; IN
RAMASWAMY, Sivaramanivas; IN
BAJPAI, Abhinav, Ramnath; US
Agent:
KRAMER, John, A.; General Electric Company Global Patent Operation 2 Corporate Drive, Suite 648 Shelton, CT 06484, US
Priority Data:
12/342,68723.12.2008US
Title (EN) METHOD AND SYSTEM FOR ESTIMATING CONTACT PATTERNS
(FR) PROCÉDÉ ET SYSTÈME POUR ESTIMER LES MOTIFS DE CONTACT
Abstract:
(EN) A gear inspection system and method for a gearbox, wherein an image acquisition unit is oriented proximate the gearbox with a field of view of a section of the gears. The image acquisition unit obtains images of a gear tooth and corresponding contact pattern. In one embodiment a processing unit transforms the images to a gear tooth model so that the gear tooth image and contact pattern image matches the model gear tooth. Metrics are computed for the contact pattern, and based on threshold values, a determination is made as to whether the gearbox is acceptable.
(FR) L'invention concerne un système et un procédé d'inspection d'engrenage pour une boîte d'engrenage, dans laquelle ladite unité d'acquisition d'image est orientée à proximité de la boîte d'engrenage avec un champ de visualisation d'une section des engrenages. L'unité d'acquisition d'image acquiert les images d'une dent d'engrenage et d'un motif de contact correspondant. Dans un mode de réalisation, une unité de traitement transforme les images d'un modèle de dent d'engrenage de sorte que l'image de la dent d'engrenage et l'image du motif de contact correspondent au modèle de la dent d'engrenage. Les métriques sont calculées pour le motif de contact, et une détermination est réalisée, sur la base des valeurs de seuil pour déterminer l'acceptabilité de la boîte d'engrenage.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CN102265131