초록 ▼

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 associa

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.

대표청구항 ▼

Apparatus for use in an ultrasonic determination of defects along the base of a track rail comprising: a sliding plate positioned on a top surface of said base of a rail; means for providing relative movement between said sliding plate and said top surface and along the longitudinal extent of said t

Apparatus for use in an ultrasonic determination of defects along the base of a track rail comprising: a sliding plate positioned on a top surface of said base of a rail; means for providing relative movement between said sliding plate and said top surface and along the longitudinal extent of said track rail; a housing mounted to said sliding plate, said housing comprising: a first compartment for receiving a transducer means therein; a mounting block for said transducer means positioned in said first compartment; means for rotating said mounting block about an axis passing therethrough with said rotation variously inclining said transducer means relative to said top surface; and means for maintaining said rotatable mounting block at a selected position relative to said axis whereby said transducer means is positioned at a selected inclination relative to said top surface; means for acoustically coupling said mounted housing with said top surface of said rail; said transducer means being a part of an ultrasonic testing system and mounting in said housing at a selected inclination relative to said top surface of said rail upon rotation of said mounting block; monitor means associated with said transducer means for checking signals transmitted and received by said transducer, said transducer means transmitting signals through said top surface of said rail and in a direction along the bottom surface of said rail base and receiving reflected signals resulting from said transmitted signals, said slidable plate movement presenting a succession of positions of said transducer means along the extent of said top surface of said rail base whereby to provide a plurality of transmitted and reflected signals therealong for delivery to said monitor means with said signals being useful in said determination of deflects along the base of a track rail.