System to measure geometric and electromagnetic characteristics

Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means

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209527, 209558, 209571, 209590, 367 8, 367 11, 367 96, 367126, 414730, 901 15, 901 45, 901 46, B07C 5344, G01S 966

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045573867

ABSTRACT:
A system to measure geometric and electromagnetic characteristics of objects. Wave energy of a single frequency (or very narrow band of frequencies) is directed upon an object which reflects (or otherwise interacts with) the wave energy. The reflected wave energy is sensed by many spatially spaced sensors to provide electric signals whose amplitude and phase components are combined to give a quantity from which geometric and/or electromagnetic characteristics of the object can be ascertained.

REFERENCES:
patent: 3438493 (1969-04-01), Goble
patent: 3679020 (1972-07-01), Sondhi
patent: 3717843 (1973-02-01), Farrah et al.
patent: 3736552 (1973-05-01), Sessler et al.
patent: 3803606 (1974-04-01), Lebail et al.
patent: 3804270 (1974-04-01), Michaud et al.
patent: 3918297 (1975-11-01), Rocha
patent: 3975261 (1976-08-01), Beck
patent: 4049123 (1977-09-01), Fegley et al.
patent: 4169257 (1979-09-01), Smith
IBM Technical Disclosure Bulletin, vol. 18, No. 8, pp. 2665-2667, Affinito et al., Jan. 1976.

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