Fluid level sensor

摘要

In one embodiment of the present invention, a fluid level sensor includes a resistor element (22) and a float (24) coupled to a contact (42). The float (24) moves in response to the fluid level, causing the contact (42) to follow a path on the resistor element (22). The resistor element (22) includes a layer of resistive material (48) disposed on an insulating substrate (23). The resistor element (22) also includes a layer of conductive material (49) disposed on the layer of resistive material (48). The conductive material is disposed in segments (58) along the path followed by the contact (48). This embodiment of the present invention provides a high-durability fluid level sensor which further provides low electrical noise. <IMAGE>