Method and apparatus for detecting extraneous solid substances c

Details Method and apparatus for detecting extraneous solid substances c Method and apparatus for detecting extraneous solid substances c

1976-03-23

1977-11-15

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250227, 356103, G01N 2126

Patent

active

040587371

ABSTRACT:
An improvement of a method and an apparatus for detection of an extraneous solid substance which may exist in a transparent liquid wherein a sealed transparent container filled with the transparent liquid is rotated to cause rotation of the extraneous solid substance mixed and floated in the liquid. Light is projected through the container and the intensity of the light passed through said container is measured. The invention is characterized in that an optical fiber line-circle converter has its linear end formed into two or more straight files which may be set on the same or different level lines, respectively. The present method and apparatus can detect more precisely the extraneous substance moving in an irregular motion in the transparent liquid.

REFERENCES:
patent: 3238294 (1966-03-01), Krauss
patent: 3325594 (1967-06-01), Goldhammer et al.
patent: 3627423 (1971-12-01), Knapp et al.
patent: 3800149 (1974-03-01), Lang

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