Measuring and testing – Liquid level or depth gauge – With illumination
Patent
1984-07-19
1986-08-19
Frankfort, Charles
Measuring and testing
Liquid level or depth gauge
With illumination
340619, 116227, G01F 2302
Patent
active
046062262
ABSTRACT:
A sensor element for a liquid level sensor of the "light prism" type is constructed so as to have a gradually tapering frusto-conical shape and a sensing surface at its lower tip. Such a shape has a tendency to collomate the light transmitted within it and to concentrate all critical reflections in the lower tip of the sensor element, thereby defining a relatively concentrated sensing area. At the same time, the sensor element is shaped and dimensioned in the vicinity of the sensing surface so that the surface tension of the droplet causes the droplet to be lifted upwardly and away from the sensing surface. Any deliterious effect of the droplet on the sensing ability of the sensor is thereby avoided.
REFERENCES:
patent: 1883971 (1932-10-01), Kryzanowsky
patent: 2799089 (1957-07-01), Banker
patent: 3054291 (1962-09-01), Landwer
patent: 3319597 (1967-05-01), Schnitzius et al.
patent: 3338457 (1967-08-01), Tygenhof
patent: 3442127 (1969-05-01), Nichols
patent: 3448616 (1969-06-01), Wostl et al.
patent: 3528291 (1970-09-01), Melone
patent: 3535934 (1970-10-01), Rapata
patent: 3801181 (1974-04-01), Kitano et al.
patent: 3963327 (1976-06-01), Poirier
patent: 4038650 (1977-07-01), Evans et al.
patent: 4157209 (1979-06-01), Amendolia
patent: 4301597 (1981-11-01), Midorikawa
patent: 4353252 (1982-10-01), Jeans
EOTec Corporation
Frankfort Charles
Will Thomas B.
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