Method and apparatus for detecting fluid level

Measuring and testing – Liquid level or depth gauge – With illumination

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Details

222 64, 250900, 347 7, G01F 23292, B41F 3102

Patent

active

058529462

ABSTRACT:
The present invention is a fluid level detector for providing a signal indicative of fluid level in a fluid container. The fluid level detector includes a first light conduit portion for providing light to fluid within the fluid container and a second light conduit portion for receiving light provided by the first light conduit portion. A light path extends from the first light conduit portion into the second light conduit portion. The light path has a light path length that varies with fluid level within the fluid container. The light path length variation produces light intensity variation at the second conduit portion which is indicative of fluid level in the fluid container.

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