Ultrasonic transducer unit to locate cracks in rail base

Details Ultrasonic transducer unit to locate cracks in rail base Ultrasonic transducer unit to locate cracks in rail base

1983-08-22

1986-06-10

Levy, Stewart J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

73639, G01N 2904

Patent

active

045935696

ABSTRACT:
Apparatus for ultrasonic detection of flaws in the rail base of a track rail includes a sliding shoe having a transducer unit and coupling medium reservoir mounted thereon. The transducer, which is part of an ultrasonic testing system, transmits search signals into the rail base and receives associated reflected signals thereof. These signals, being capable of pictorially representing defects in the base of the rail, are monitored by the tester. The preferred embodiments allow for relative movement of the transducer unit and coupling medium reservoir along the base of the rail in order to provide for a succession of transmitted and reflected signals along the longitudinal extent of the rail base so as to test for flaws, defects, etc. in the same.

REFERENCES:
patent: 2672753 (1954-03-01), Drake
patent: 2678559 (1954-05-01), Drake
patent: 3028751 (1962-04-01), Joy
patent: 3028753 (1962-04-01), Joy
patent: 3122661 (1964-02-01), Joy
patent: 3156111 (1964-11-01), Joy
patent: 3166731 (1965-01-01), Joy
patent: 3218846 (1965-11-01), Joy
patent: 3251220 (1966-05-01), Joy
patent: 4143553 (1979-03-01), Martens et al.
patent: 4165648 (1979-08-01), Pagano
patent: 4487071 (1984-12-01), Pagano et al.

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