Level sensors

Details Level sensors Level sensors

2005-08-09

2005-08-09

Cygan, Michael (Department: 2855)

Measuring and testing

Liquid level or depth gauge

With illumination

C250S577000, C250S900000, C116S227000

Reexamination Certificate

active

06925871

ABSTRACT:
A level detector comprises an array of light emitting devices mounted in a line parallel to an array of light receiving devices, the arrays being mounted within a housing capable of internally reflecting light from the emitting devices to respective receiving devices unless the respective parts of the level sensor are immersed in liquid. The outer internally-reflecting surface of the housing is preferable a continuous straight-line surface along the direction parallel to the arrays.

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Derwent abstract, SU-1372189-A, Feb. 1988.

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