Liquid level detector system with fill-level signature detection

Details Liquid level detector system with fill-level signature detection Liquid level detector system with fill-level signature detection

1989-02-03

1990-09-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250223B, G01N 2149

Patent

active

049565605

ABSTRACT:
An apparatus for checking the fill level of a vial. The apparatus indicates the presence of a vial in a predetermined location. Light is sensed to measuring the amount of light which is able to pass through the vial at that location. A signal is produced which is porportional to the amount of material in said vial.

REFERENCES:
patent: 3827812 (1974-08-01), Heimann
patent: 3887284 (1975-06-01), Gender

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