Level sensor for measuring level of fuel in fuel tank of e.g. car, has control unit determining level of liquid based on signals output by clinometers as functions of inclination angle of container and pivoting angle of lever

摘要

The sensor (54) has a float (18) floating on a surface (S) of liquid (12) in a container (10). An end of a lever (16) i.e. metal stem, is pivoted based on a liquid level. A clinometer (34) fixed at the container outputs a signal (S1) as a function of an inclination angle (a1) of the container with respect to a horizontal direction (H). Another clinometer (48) outputs another signal as a function of pivoting angle (a2) of the lever with respect to the horizontal direction. The clinometers are connected to a control unit (52), which determines the liquid level based on the signals. Independent claims are also included for the following: (1) a liquid pumping module (2) a method for determining a level of liquid in a container.