EMAT probe and technique for weld inspection

Details EMAT probe and technique for weld inspection EMAT probe and technique for weld inspection

1995-09-07

1998-06-02

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73598, 73600, 73620, 73624, 73627, G01N 2910

Patent

active

057603073

ABSTRACT:
A method and apparatus of inspecting for flaws in a specular reflector, where the flaws having an expected length and the reflector is electrically conductive. The method includes directing a beam of an electromagnetic acoustic transmitting transducer along a beam axis toward the specular reflector for producing a reflected electromagnetic acoustic beam. The transmitted beam has side lobes with zero points therebetween, at least some of the side lobes being major side lobes. The reflected beam is received using an electromagnetic acoustic receiving transmitter set at an angle to the beam axis, the angle being selected to be at one of the zero points and past all of the major lobes of the transmitted beam to eliminate root and crown signals of the weld, in the reflected signal.

REFERENCES:
patent: 3918295 (1975-11-01), Herbertz
patent: 4289030 (1981-09-01), Alers et al.
patent: 4481824 (1984-11-01), Fujimoto et al.
patent: 4593568 (1986-06-01), Telford et al.
patent: 5060518 (1991-10-01), Aleshin et al.
patent: 5085082 (1992-02-01), Cantor et al.
patent: 5154081 (1992-10-01), Thompson et al.
patent: 5237874 (1992-08-01), Latimer et al.
patent: 5359898 (1994-11-01), Latimer
patent: 5497662 (1996-03-01), Dykes
patent: 5537876 (1996-07-01), Davidson et al.

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