Measuring and testing – Liquid level or depth gauge – Float
Patent
1995-09-27
1998-04-28
Oen, William L.
Measuring and testing
Liquid level or depth gauge
Float
73308, G01F 2336, G01F 2352, G01F 2360
Patent
active
057431361
ABSTRACT:
In one embodiment of the present invention, a fluid level sensor includes a resistive element and a float coupled to a contact. The float moves in response to the fluid level, causing the contact to follow a path on the resistive element. The resistive element includes a layer of resistive material disposed on an insulating substrate. The resistive element also includes a layer of conductive material disposed on the layer of resistive material. The conductive material is disposed in segments along the path followed by the contact. This embodiment of the present invention provides a high-durability fluid level sensor which further provides low electrical noise.
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Gaston Robert Duane
Rajendran Narayanaswamy
Ford Motor Company
Oen William L.
Sparschu Mark S.
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