Ship's bottom inspection apparatus

Details Ship's bottom inspection apparatus Ship's bottom inspection apparatus

1975-10-20

1977-02-22

Queisser, Richard C.

Measuring and testing

Surface and cutting edge testing

73432R, 240 2C, 354 64, 354 81, G01N 1902, G03B 2900

Patent

active

040086062

ABSTRACT:
A ship's bottom inspection apparatus which includes a generally U-shaped mework which is adapted to be submerged for receiving the width of a ship therebetween. A series of cameras are mounted in a spaced relationship along the framework to view vertically upward. A series of lights are mounted in a spaced relationship along the framework at an acute angle to vertical and directed generally toward the viewing area of the cameras so that backscattering is minimized while ship bottom discontinuities are made evident by shadow effects. In this manner multiple photographs can be taken of the ship's bottom to display any possible structural defects.

REFERENCES:
patent: 685463 (1901-10-01), Walkins
patent: 3596082 (1971-07-01), Doret et al.
patent: 3738248 (1973-06-01), Fish et al.

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