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Dive into the research topics where Francis Xavier Gradich is active.

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Featured researches published by Francis Xavier Gradich.


Archive | 1988

Apparatus and method for inspecting the profile of the inner wall of a tube employing a wall follower and an eddy current probe

Stephen D. Brown; Warren R. Junker; Francis Xavier Gradich


Archive | 1986

Optical profilometry system for tubular products

William Guy Clark; Lee Wayne Burtner; Francis Xavier Gradich


Archive | 1991

SYSTEM AND METHOD INCLUDING A BURIED FLEXIBLE SHEET TARGET IMPREGNATED WITH FERROMAGNETIC PARTICLES AND EDDY CURRENT PROBE FOR DETERMINING PROXIMITY OF A NON-CONDUCTIVE UNDERGROUND STRUCTURE

William Guy Clark; Francis Xavier Gradich; Lee Wayne Burtner; Michael Joseph Metala


Archive | 1990

System and method for remotely inspecting the interior walls of a cavity

William K. Cullen; Francis Xavier Gradich; Charles H. Roth; David A. Chizmar; Lee Wayne Burtner; Lawrence Galata


Archive | 1993

System and method using portable wall engaging ferromagnetic particle impregnated target medium for electromagnetically measuring distance between oposing walls of a structure

William Guy Clark; Francis Xavier Gradich; Lee Wayne Burtner; Michael Joseph Metala


Archive | 1990

TUBE PLUG INSPECTION SYSTEM

William E. Pirl; Edward A. Ray; Annette M. Costlow; Charles H. Roth; Francis Xavier Gradich; David A. Chizmar


Archive | 1989

System and method for inspecting metallic plugs in heat exchanger tubes using a radially extendible probe

William K. Cullen; Charles H. Roth; Lee Wayne Burtner; Francis Xavier Gradich; David A. Chizmar; Lawrence Galata


Archive | 1987

Gap measurement eddy current probe

Warren R. Junker; Francis Xavier Gradich; Lee Wayne Burtner


Archive | 1992

Method of determining the proximity of a structure by means of a form of radiant energy non-interactable with said structure

William Guy Clark; Francis Xavier Gradich; Lee Wayne Burtner; Michael Joseph Metala


Archive | 1992

System and method for electromagnetically determining both the proximityand dimensions of a non-conductive structure

William Guy Clark; Francis Xavier Gradich; Lee Wayne Burtner; Michael J. Metala

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