Liquid level sensor

Details Liquid level sensor Liquid level sensor

1980-10-23

1982-10-12

Ciarlante, Anthony V.

Measuring and testing

Liquid level or depth gauge

With illumination

116227, G01F 2300

Patent

active

043532527

ABSTRACT:
In order to sense a liquid level, an input light pipe and output light pipe have angled ends such that light supplied to the input light pipe is directed from it to the output light pipe by total internal reflection as long as the ends are in a gas. When in a liquid, the index is such as to cause light in the input light pipe to refract into the liquid and not reach the output light pipe. By observing the other end of the output light pipe it becomes possible to determine if the angled ends are in liquid or gas, and thus detect a liquid level.

REFERENCES:
patent: 461370 (1891-10-01), Seidensticker
patent: 2190027 (1940-02-01), Jordan
patent: 2240988 (1941-05-01), Hertel
patent: 2468833 (1949-05-01), Murphy
patent: 2548352 (1951-04-01), Courtot
patent: 2554557 (1951-05-01), Brown et al.
patent: 3054291 (1962-09-01), Landwer
patent: 3120125 (1964-02-01), Vasel
patent: 3152723 (1964-10-01), Perl et al.
patent: 3272174 (1966-09-01), Fribonic
patent: 3319597 (1967-06-01), Schnitzius et al.
patent: 3338457 (1967-08-01), Tygenhof
patent: 3397808 (1968-08-01), Jones
patent: 3498141 (1970-03-01), Nelson et al.
patent: 3535934 (1970-10-01), Rapata
patent: 3568628 (1971-03-01), Erickson
patent: 3570311 (1971-03-01), Nelson
patent: 3648521 (1972-03-01), Amendolia
patent: 3834235 (1974-09-01), Bouton et al.
patent: 3893339 (1975-07-01), Melone
patent: 4156149 (1979-05-01), Vaccari

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