Importance

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Abstract

A sensing assembly (10) senses liquid levels (14) in a reservoir (12) and creates a sensing signal (54) therefore. The sensing assembly (10) includes a first electrical conductor (22) extending into the reservoir (12). A second electrical conductor (24) also extends into the reservoir (12) and is disposed from the first electrical conductor (22) a predetermined distance. A first electrode (28) is electrically connected to the first electrical conductor (22). The first electrode (28) extends between a first conductor end (30) and a first distal end (32). A first electrode length (34) is defined therebetween. A second electrode (36) is electrically connected to the second electrode conductor (24). The second (36) electrode is spaced apart from the first electrode (28) and extends between a second conductor end (38) and a second distal end (40). A second electrode length (42) is defined therebetween. The sensing assembly (10) also includes a plurality of plates (44) that are operatively connected to the second electrode (36). The plurality of plates (44) are spaced equidistantly along the second electrode length (42). Each of the plurality of plates (44) combines with the first electrode (28) to create a unique capacitance such that the sensing signal (54) generating by the sensing assembly (10) determines the level (14) of the liquid (16) in the reservoir (12).

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First Claim