Measuring and testing – Liquid level or depth gauge – Float
Patent
1999-05-04
2000-05-30
Oen, William
Measuring and testing
Liquid level or depth gauge
Float
G01F 2330
Patent
active
060678550
ABSTRACT:
A system and method for measuring ampoule liquid level are presented. A buoy is arranged entirely within and detached from the ampoule. The buoy contains enough matter having a density less than that of the liquid to maintain flotation of the buoy, and has an exterior surface formed from a non-reactive material. The buoy is further designed to not interfere with any inlet or outlet structures of the ampoule. At least one magnet is displaced within the buoy such that the magnet is located near the ampoule's interior wall when the buoy is arranged within the ampoule. At least one sensor strip is located along the height of and entirely outside of the ampoule's interior wall, and at least one electronic sensor, containing at least one magnetically actuated switch, is located within each sensor strip. The electronic sensor may also contain a visible indicator and/or a resistor. The electronic sensor may be electronically connected to at least one separate system. In a method of using the system to measure the ampoule's liquid level, the buoy is arranged within the ampoule and the sensor strip is arranged outside the ampoule. As the magnet in the buoy passes near a magnetically actuated switch outside the ampoule, the switch closes to either illuminate a visual indicator or signal a separate system.
REFERENCES:
patent: 3715539 (1973-02-01), Silberg et al.
patent: 3976963 (1976-08-01), Kubler
patent: 3992941 (1976-11-01), McGoldrick
patent: 4056979 (1977-11-01), Bongort et al.
patent: 4796473 (1989-01-01), Custer
patent: 5156048 (1992-10-01), DeFigueiredo et al.
patent: 5636548 (1997-06-01), Dunn et al.
Brennan William S.
Brown Ian G.
Advanced Micro Devices , Inc.
Daffer Kevin L.
Oen William
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