Fiberoptic filling level sensor for transparent liquid media

Details Fiberoptic filling level sensor for transparent liquid media Fiberoptic filling level sensor for transparent liquid media

2006-07-11

2006-07-11

Nguyen, Tu T. (Department: 2877)

Optics: measuring and testing

For optical fiber or waveguide inspection

Reexamination Certificate

active

07075631

ABSTRACT:
A fiberoptic filling level determination apparatus for liquid transparent medium disposed in a container has a light wave conductor that is disposed within the container and has an input section that is connected to a light source and is guided in the container, in a helical path, to the deepest level of the container accessible for the filling level determination. Proceeding from the input section, the light wave conductor has a linear output section that is guided out of the container. Associated with the input section and the output section, externally of the container, is a respective device for measuring the intensity of introduced and exiting light. The ratio of the intensity measured by the devices can be represented in a filling level value.

REFERENCES:
patent: 5303586 (1994-04-01), Zhao et al.
patent: 3235591 (2004-03-01), None

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