[특허]Ultrasonic side-looker for rail head flaw detection

Ultrasonic side-looker for rail head flaw detection 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-029/04
출원번호	US-0034420 (1993-03-19)
발명자 / 주소	Havira Robert M. (New Fairfield CT) Iorfino Anthony (Stamford CT)
출원인 / 주소	Pandrol Jackson Technologies, Inc. (Danbury CT 02)
인용정보	피인용 횟수 : 38 인용 특허 : 0

초록 ▼

An ultrasonic rail flaw detection system and technique are described for the detection of flaws in the sides of rail heads. An ultrasonic transducer is oriented, sized, and so-located so as to produce an ultrasonic beam within the head whereby at least a portion of the beam will intersect a lower side corner independent of the curvature of the rail head running surface and the amount of head wear. The presence of premature reflections or the or absence of reflections can be used to detect flaws such as vertical fractures in the rail head. The side-looker is so oriented as to produce a beam in the rail head that lies within 45°to 75°of the normal to the rail surface. The side-looker can further be so located that its beam does not interfere with or be interfered by beams from other transducers used to investigate the rail and mounted in the same wheel assembly as the side-looker.

대표청구항 ▼

In an apparatus for an acoustic investigation of a rail with a fluid filled rotating wheel inside of which is a stable yoke on which a plurality of ultrasonic transducers are mounted for the investigation of the rail with ultrasonic beams that exit at a generally common flat area formed in a flexible outer membrane of the wheel as it rotates about an axis to travel along the top running surface of the rail head of the rail under inspection and wherein the beams have different angles relative to the normal to the top running surface to investigate forward, backward and downward regions of the rail, the improvement comprising: an ultrasonic side-looking transducer mounted to the yoke and located in the vicinity of the generally common flat area below and on a side of the yoke, said side-looking transducer being oriented so as to produce an ultrasonic beam within the wheel fluid that is directed at the common flat area with a fluid angle within a range from about 61 degrees to about 65.5 degrees relative to a normal to the top surface of the rail, with the normal located in a plane which is transverse to the rotational axis of the wheel, so as to produce a beam inside the rail head with a head angle relative to the normal in the range from about 45 degrees to about 75 degrees as measured within a plane that is generally transverse to the top running surface of the rail, said beam further having a width selected to produce, within the rail head, an ultrasonic beam, at least a portion of which remains incident on a lower corner thereof independent of the presence of significant rail head wear and produces reflections from the lower corner; said reflections or an absence thereof being able to indicate the presence of vertical rail head flaws which run generally along the running surface of the rail.

이 특허를 인용한 특허 (38)

Wigh, Jeffrey B.; Ebersold, Richard L.; Elbert, Troy L.; Coolman, Timothy J., Apparatus for detecting defects.
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Wigh, Jeffrey B.; Ebersold, Richard L.; Elbert, Troy L.; Coolman, Timothy J., Apparatus for detecting defects.
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Wigh, Jeffrey B.; Ebersold, Richard L.; Elbert, Troy L.; Coolman, Timothy J., Apparatus for detecting defects.
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Martens, George D., Apparatus for detecting, identifying and recording the location of defects in a railway rail.
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Havira, Robert Mark; Bakach, Jr., Joseph S., Automatic carriage alignment.
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Robin Clark ; Douglas T. Main, Jr., Brush assembly for magnetic induction test apparatus.
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Cooper, Jared Klineman; Eldredge, David Allen; Golden, Samuel William, Distributed energy management system and method for a vehicle system.
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Wooh Shi-Chang, Flaw detection system using acoustic doppler effect.
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Wooh, Shi-Chang, Flaw detection system using acoustic doppler effect.
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Wooh, Shi-Chang, Flaw detection system using acoustic doppler effect.
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Clark, Robin; Boyle, Jeffery L.; Main, Jr., Douglas T.; LaMacchia, Brewster W., Hi-rail vehicle-based rail inspection system.
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Sengupta,Anandraj, High speed inspection system and method.
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Alleyne, David N., Inspection of non axi-symmetric elongate bodies.
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Kenderian, Shant; Djordjevic, B. Boro; Green, Jr., Robert E.; Cerniglia, Donatella, Laser-air, hybrid, ultrasonic testing of railroad tracks.
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Kenderian, Shant; Djordjevic, B. Boro; Cerniglia, Donatella, Laser-air, hybrid, ultrasonic testing of railroad wheels.
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Tastard, Christophe; Gleize, Philippe; Toquet, Alain, Liquid-dissolved gas characterization facility and method.
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Bestebreurtje, Pieter, Method and apparatus for detecting flaws in a railhead.
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Bestebreurtje, Pieter, Method and apparatus for ultrasonic testing of an object.
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Martens George D., Method of and an apparatus for detecting, identifying and recording the location of defects in a railway rail.
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Havira, Robert Mark, Method of and an apparatus for in situ ultrasonic rail inspection of a railroad rail.
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Wigh, Jeffrey B.; Ebersold, Richard L.; Elbert, Troy L.; Coolman, Timothy J., Method of detecting defects.
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Li, Gang, Method, transducer wheel and flaw detection system for ultrasonic detecting railroad rails.
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Pielli, John A.; Gaglione, Kenneth, Multi-probe rail scanning/encoder system and certified method of use thereof.
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Pielli, John A.; Gaglione, Kenneth, Multi-probe rail scanning/encoder system and certified method of use thereof.
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Gueugnaut, Dominique; Raze, Stéphane; Chauveau, Daniel; Flotte, Didier, Non destructive testing device and method for detecting possible anomalies of a wall thickness.
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Sarr, Dennis P., Rapid prototype integrated matrix ultrasonic transducer array inspection apparatus, systems, and methods.
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Jenkins, Thomas Richard; Hackenberger, Dane Eugene; Shaffer, Robert Charles, Rolling phased array ultrasonic scanner.
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Cooper, Jared Klineman; Kumar, Ajith Kuttannair; Noffsinger, Joseph Forrest, Route examining system and method.
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Noffsinger, Joseph Forrest; Kumar, Ajith Kuttannair; Plotnikov, Yuri Alexeyevich; Fries, Jeffrey Michael; Boyanapally, Srilatha; Ehret, Steven Joseph, Route examining system and method.
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Kumar, Ajith Kuttannair; Noffsinger, Joseph Forrest; Nieters, Edward James, System and method for acoustically identifying damaged sections of a route.
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Kumar, Ajith Kuttannair; Eldredge, David; Ballesty, Daniel; Cooper, Jared Klineman; Roney, Christopher; Houpt, Paul; Mathe, Stephen; Julich, Paul; Kisak, Jeffrey; Shaffer, Glenn; Nelson, Scott; Daum, Wolfgang, System and method for vehicle control.
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Otsubo, Tom; Daum, Wolfgang; Stull, Craig Alan; Hann, Gregory; Danner, Phillip, System, method and computer software code for determining a mission plan for a powered system using signal aspect information.
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Jones, Terence, Tool and method for manipulating a transducer assembly.
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Kumar, Ajith Kuttannair; Shaffer, Glenn Robert; Houpt, Paul Kenneth; Movsichoff, Bernardo Adrian; Chan, David So Keung; Eker, Sukru Alper, Trip optimization system and method for a train.
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Wooh, Shi-Chang, Tuned wave phased array.
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Thomson, Clint D.; Palmer, Jeremy D.; Andersen, Robert N.; Riding, Kenneth B., Ultrasonic testing phased array inspection fixture and related methods.
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Cooper, Jared Klineman; Kumar, Ajith Kuttannair; Smith, Eugene; Nagrodsky, Nick David; Schoonmaker, William Cherrick; Goodermuth, Todd William, Vehicle consist configuration control.
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McWhorter, Paul H., Wheel-type transmit/receive ultrasonic inspection device with constant length internal liquid soundpath.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Ultrasonic side-looker for rail head flaw detection 원문보기

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Ultrasonic side-looker for rail head flaw detection 원문보기

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이 특허를 인용한 특허 (38)

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