Arrangement for measuring fill level, especially motor vehicle oil level, has evaluation device for temperature-dependent resistance voltage with characteristics for different currents

摘要

The arrangement has a temperature-dependent resistance to which a measurement current is fed. A resistance region not covered by the liquid is heated more than a covered region. The voltage rise in the resistance is a measure of the level. The voltage can be fed to an evaluation device with characteristics for different measurement currents from which level values can be formed by interpolation depending on previously stored correction values. The arrangement has a temperature-dependent resistance extending over the measurement region to which a measurement current is fed. A region of the resistance not covered by the liquid is heated more than a covered region. The voltage rise in the resistance is a measure of the level. The voltage can be fed to an evaluation device with characteristics for different measurement currents from which level values can be formed by interpolation depending on previously stored correction values. AN Independent claim is also included for the following: a method of measuring a fill level, especially oil level in motor vehicle.