Method for remotely inspecting solid structures for discontinuit

Details Method for remotely inspecting solid structures for discontinuit Method for remotely inspecting solid structures for discontinuit

1986-07-11

1988-02-09

Myracle, Jerry

Measuring and testing

Vibration

Sensing apparatus

G01N 2904

Patent

active

047234482

ABSTRACT:
A method for remotely inspecting solid structures for discontinuities other than surface imperfections is disclosed. The method comprises vibrating a solid structure to be inspected while utilizing a laser radar doppler receiver to generate a doppler shifted heterodyne signal resulting from detecting the vibrational frequency of a portion of the solid structure to be inspected. The doppler shifted signal is monitored while scanning the surface of the solid structure.

REFERENCES:
patent: 4633715 (1987-01-01), Monchalin

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