Method, transducer wheel and flaw detection system for ultrasonic detecting railroad rails
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-029/04
출원번호
US-0830002
(2001-07-06)
국제출원번호
PCT/CN98/00257
(1998-10-23)
국제공개번호
WO00/25126
(2000-05-04)
발명자
/ 주소
Li, Gang
대리인 / 주소
Ladas & Parry
인용정보
피인용 횟수 :
41인용 특허 :
6
초록▼
This invention relates to a nondestructive flaw detection method, especially an ultrasonic flaw detection method for detecting rail flaws, as well as the wheel transducer and flaw detection system for implementing the method. According to the method, a solid coupling medium couples ultrasonic waves.
This invention relates to a nondestructive flaw detection method, especially an ultrasonic flaw detection method for detecting rail flaws, as well as the wheel transducer and flaw detection system for implementing the method. According to the method, a solid coupling medium couples ultrasonic waves. The wheel transducer according to the invention includes a tire made of ultrasonic wave permeable materials, probes combining ultrasonic emitter/receiver, a sliding plate and the means for reducing friction between the sliding plate and the bottom of the tire of the wheel transducer while flaw detection. The sliding plate is fixed on the fixed axle of the wheel transducer. The probes combining ultrasonic emitter/receiver are mounted on the sliding plate. While flaw detection, the sliding plate compels the wall of the tire of the wheel transducer to flat press on the surface of rails to be detected.
대표청구항▼
This invention relates to a nondestructive flaw detection method, especially an ultrasonic flaw detection method for detecting rail flaws, as well as the wheel transducer and flaw detection system for implementing the method. According to the method, a solid coupling medium couples ultrasonic waves.
This invention relates to a nondestructive flaw detection method, especially an ultrasonic flaw detection method for detecting rail flaws, as well as the wheel transducer and flaw detection system for implementing the method. According to the method, a solid coupling medium couples ultrasonic waves. The wheel transducer according to the invention includes a tire made of ultrasonic wave permeable materials, probes combining ultrasonic emitter/receiver, a sliding plate and the means for reducing friction between the sliding plate and the bottom of the tire of the wheel transducer while flaw detection. The sliding plate is fixed on the fixed axle of the wheel transducer. The probes combining ultrasonic emitter/receiver are mounted on the sliding plate. While flaw detection, the sliding plate compels the wall of the tire of the wheel transducer to flat press on the surface of rails to be detected. ling element spacing; whereby the first zipper stringer comprises a first coupling element pitch sequence comprising at least two different coupling element spacings. 2. A first zipper stringer for use with a second zipper stringer, as recited in claim 1, wherein said first coupling element comprises first surface contours for interlocking with coupling elements of the second zipper stringer. 3. A first zipper stringer for use with a second zipper stringer, as recited in claim 1, wherein said first coupling element and said second coupling element are molded onto a flexible strip or cord by continuous injection molding of a thermoplastic material. 4. A first zipper stringer for use with a second zipper stringer, as recited in claim 1, wherein said first coupling element spacing alternates with said second coupling element spacing at least once. 5. A zipper comprising the first zipper stringer as recited in claim 1, and a second zipper stringer reversibly interlockable with the first zipper stringer, the second zipper stringer comprising a second coupling element pitch sequence complementary to said first coupling element pitch sequence. 6. A zipper as recited in claim 5, further comprising a slider for joining the first zipper stringer to the second zipper stringer. 7. A zipper as recited in claim 5, wherein said first coupling element spacing is at least one percent larger or smaller than said second coupling element spacing. 8. A zipper as recited in claim 5, wherein said first coupling element spacing is at least five percent larger or smaller than said second coupling element spacing. 9. A zipper as recited in claim 5, wherein said first coupling element spacing is at least ten percent larger or smaller than said second coupling element spacing. 10. A zipper as recited in claim 5, wherein said first coupling element spacing and said second coupling element spacing are alternated so as to form a zipper pitch sequence encrypting informational content. 11. A zipper as recited in claim 5, wherein said first coupling element pitch sequence is arrayed on a first flexible strip or cord, and wherein said second coupling element pitch sequence is arrayed on a second flexible strip or cord. 12. A zipper as recited in claim 11, further comprising a slider for joining the first zipper stringer to the second zipper stringer. 13. A zipper as recited in claim 5, wherein said first coupling element pitch sequence and/or said second coupling element pitch sequence carry coded information. 14. A zipper as recited in claim 13, further comprising a slider for joining the first zipper stringer to the second zipper stringer. 15. A zipper as recited in claim 13, wherein said information is encrypted in Morse code.
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이 특허에 인용된 특허 (6)
Pagano Dominick A. (Weston CT) Morris Kevin S. (New Milford CT), Flaw detection system for railroad rails and the like.
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Havira, Robert Mark; Iorfino, Anthony, System and method for non-destructive testing of railroad rails using ultrasonic apparatuses mounted within fluid-filled tires maintained at constant temperatures.
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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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