SE9001955D0 - FOERBAETTRAD ACOUSTIC STORAGE DEFECT DETECTOR - Google Patents

FOERBAETTRAD ACOUSTIC STORAGE DEFECT DETECTOR

Info

Publication number
SE9001955D0
SE9001955D0 SE9001955A SE9001955A SE9001955D0 SE 9001955 D0 SE9001955 D0 SE 9001955D0 SE 9001955 A SE9001955 A SE 9001955A SE 9001955 A SE9001955 A SE 9001955A SE 9001955 D0 SE9001955 D0 SE 9001955D0
Authority
SE
Sweden
Prior art keywords
foerbaettrad
defect detector
storage defect
acoustic storage
acoustic
Prior art date
Application number
SE9001955A
Other languages
Swedish (sv)
Other versions
SE9001955L (en
SE512816C2 (en
Inventor
J E Bambara
Original Assignee
Servo Corp Of America
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 Servo Corp Of America filed Critical Servo Corp Of America
Publication of SE9001955D0 publication Critical patent/SE9001955D0/en
Publication of SE9001955L publication Critical patent/SE9001955L/en
Publication of SE512816C2 publication Critical patent/SE512816C2/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
    • B61K9/04—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency
    • G01H3/08—Analysing frequencies present in complex vibrations, e.g. comparing harmonics present
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/262—Linear objects
    • G01N2291/2623—Rails; Railroads

Abstract

An acoustic system for detecting defects in the bearings of moving railroad cars and identifying the location of these defects has means for opening a window on detection of a wheel passing a particular point such that signals received relate only to the bearing and extraneous signals are excluded. <IMAGE>
SE9001955A 1989-07-06 1990-05-31 Device for acoustic detection of bearing defects in wheels for railway wagons SE512816C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37689089A 1989-07-06 1989-07-06

Publications (3)

Publication Number Publication Date
SE9001955D0 true SE9001955D0 (en) 1990-05-31
SE9001955L SE9001955L (en) 1991-01-07
SE512816C2 SE512816C2 (en) 2000-05-15

Family

ID=23486919

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9001955A SE512816C2 (en) 1989-07-06 1990-05-31 Device for acoustic detection of bearing defects in wheels for railway wagons

Country Status (4)

Country Link
AU (1) AU641143B2 (en)
CA (1) CA2015412C (en)
GB (1) GB2233761B (en)
SE (1) SE512816C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7213789B1 (en) * 2003-04-29 2007-05-08 Eugene Matzan System for detection of defects in railroad car wheels
CN105258785B (en) * 2015-10-20 2018-02-16 中国电子科技集团公司第三研究所 Acoustic monitoring station, wheel detection method and the passive acoustics diagnostic system of train bearing failure
CN107328578B (en) * 2017-07-10 2018-06-12 安徽大学 A kind of sound source separating method for the detection of train bearing rail side acoustic fault
CN116039698B (en) * 2023-03-31 2023-07-07 成都盛锴科技有限公司 Method for detecting track line health by utilizing sound characteristics

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154146B (en) * 1956-11-06 1963-09-12 Servo Corp Of America Device for determining the heating of axle boxes
GB952996A (en) * 1959-07-24 1964-03-18 Westinghouse Air Brake Co Apparatus for detecting radiant energy
US4790190A (en) * 1987-10-02 1988-12-13 Servo Corporation Of America On-line acoustic detection of bearing defects

Also Published As

Publication number Publication date
GB9004343D0 (en) 1990-04-25
GB2233761B (en) 1993-07-07
SE9001955L (en) 1991-01-07
CA2015412A1 (en) 1991-01-06
AU641143B2 (en) 1993-09-16
SE512816C2 (en) 2000-05-15
AU5201590A (en) 1991-01-10
GB2233761A (en) 1991-01-16
CA2015412C (en) 1999-08-17

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