LCC-based fluid-level detection sensor

Details LCC-based fluid-level detection sensor LCC-based fluid-level detection sensor

2005-09-27

2005-09-27

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S574000, C250S904000, C356S436000, C073S293000

Reexamination Certificate

active

06949758

ABSTRACT:
A non-mechanical fluid level sensor based on light communication channel (LCC) technology. In a preferred embodiment, one end of the LCC is connected to a signal source while another end is connected to a sensor. The LCC is dipped in a fluid container and a signal propagates and undergoes internal reflection through the LCC towards one of its ends which is connected to the sensor. The fluid level is detected preferably by measuring the intensity of the signal reflected with the LCC that reaches a sensor. Different fluid levels preferably correspond to linearly varying detected signal intensities. A main LCC bus may communicate remotely with the sensor without wiring or other electrical connectors.

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