| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel level sensor free of mechanical contact, wear, and contamination.SOLUTION: A liquid level sensor includes a liquid level responsive member, first and second circuit elements, and a magnetic field member. One circuit element 60 generates a magnetic field and the other circuit 62 is responsive to the magnetic field. The magnetic field member 76 is responsive to movement of the liquid level responsive member and alters, in at least some positions of the magnetic field member, at least one characteristic of the magnetic field experienced by the second circuit element as a function of the position of the magnetic field member. The magnetic field experienced by the second circuit element can be correlated to the position of the magnetic field member, and this position of the magnetic field member can be correlated to the position of the liquid level responsive member to indicate a liquid level in a tank. |
