WO2004046644A3 - Wheel profile inspection apparatus and method - Google Patents

Wheel profile inspection apparatus and method Download PDF

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Publication number
WO2004046644A3
WO2004046644A3 PCT/US2003/036893 US0336893W WO2004046644A3 WO 2004046644 A3 WO2004046644 A3 WO 2004046644A3 US 0336893 W US0336893 W US 0336893W WO 2004046644 A3 WO2004046644 A3 WO 2004046644A3
Authority
WO
WIPO (PCT)
Prior art keywords
calculated
wheel profile
wheels
diameter
center position
Prior art date
Application number
PCT/US2003/036893
Other languages
French (fr)
Other versions
WO2004046644A2 (en
Inventor
Kambiz Nayebi
Original Assignee
Beena Vision Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beena Vision Systems Inc filed Critical Beena Vision Systems Inc
Publication of WO2004046644A2 publication Critical patent/WO2004046644A2/en
Publication of WO2004046644A3 publication Critical patent/WO2004046644A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/12—Measuring or surveying wheel-rims
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G01B11/10—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
    • G01B11/105—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving using photoelectric detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers

Abstract

A method and system for measuring railroad wheels, where the wheels may be measured while mounted on railcars that are in motion. The method and system may be practiced by using one or more lasers or other light sources to illuminate portions of the surface of the railroad wheels, two or more of which may be substantially mutually orthogonal. By converting images of the illuminated portions to coordinates, wheel center position and diameter can be calculated, and once center position and diameter are calculated, wheel profile parameters such as flange height, flange width, and tread hollow can be calculated. The method and system produces accurate results at speeds up to at least 60 miles per hour.
PCT/US2003/036893 2002-11-18 2003-11-17 Wheel profile inspection apparatus and method WO2004046644A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/298,703 2002-11-18
US10/298,703 US6909514B2 (en) 2002-11-18 2002-11-18 Wheel profile inspection apparatus and method

Publications (2)

Publication Number Publication Date
WO2004046644A2 WO2004046644A2 (en) 2004-06-03
WO2004046644A3 true WO2004046644A3 (en) 2004-07-08

Family

ID=32297512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/036893 WO2004046644A2 (en) 2002-11-18 2003-11-17 Wheel profile inspection apparatus and method

Country Status (2)

Country Link
US (1) US6909514B2 (en)
WO (1) WO2004046644A2 (en)

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Publication number Publication date
WO2004046644A2 (en) 2004-06-03
US6909514B2 (en) 2005-06-21
US20040095585A1 (en) 2004-05-20

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