Liquid level sensor measuring a characteristic indicative of inductive coupling
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United States of America Patent
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Dec 25, 2018
Grant Date -
Dec 1, 2016
app pub date -
May 26, 2016
filing date -
May 26, 2015
priority date (Note) -
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Abstract
A sensor for determining liquid level in a liquid reservoir can include a primary inductor and a secondary inductor to be associated with sides of the reservoir that changes shape as a volume of liquid changes or is displaced within the liquid reservoir. The sensor can include an electrical power source to inductively couple the primary inductor and the secondary inductor. The liquid level sensor can include an inductive coupling measurement device associated with the primary inductor and/or the secondary inductor to measure a characteristic indicative of the inductive coupling of the primary inductor and the secondary inductor (e.g., a distance between inductors). As liquid volume changes and the reservoir deforms, the inductors move relative to each other and a voltage change occurs to determine a liquid level in the reservoir. A sensor kit is provided.
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