Liquid Level and Volume Measurement Device.
Patent, Filed 30 Jul 90, patented 17 Dec 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
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The liquid level measurement device is an electro-optical device which uses a light source typically a light emitting diode LED or laser diode and an optical detector to measure the level of a liquid in a container. The light beam is passed through the liquid and received by the optical detector. The detector output is processed to determine the liquid level or the liquid volume. A special feature is the ability to measure a continuum of fluid levels or volumes.
- Optical Detection and Detectors
- Test Facilities, Equipment and Methods