System for inspecting large size structural components

Details System for inspecting large size structural components System for inspecting large size structural components

1989-01-09

1990-08-07

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

2503581, G01N 2302

Patent

active

049470450

ABSTRACT:
The present invention relates to a system for inspecting large scale structural components such as concrete walls or the like. The system includes a mobile gamma radiation source and a mobile gamma radiation detector. The source and detector are constructed and arranged for simultaneous movement along parallel paths in alignment with one another on opposite sides of a structural component being inspected. A control system provides signals which coordinate the movements of the source and detector and receives and records the radiation level data developed by the detector as a function of source and detector positions. The radiation level data is then analyzed to identify areas containing defects corresponding to unexpected variations in the radiation levels detected.

REFERENCES:
patent: 3775612 (1973-11-01), Foster et al.
patent: 4283628 (1981-08-01), Kulekov et al.
"Faster Pipe-Weld Testing . . . ", Nucleonics, vol. 17, No. 1, Jan., 1959, p. 98.

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