.ObsoleteModelica3.Mechanics.Rotational.Interfaces.RelativeSensor .ObsoleteModelica3.Mechanics.Rotational.Interfaces.RelativeSensorThis is a base class for 1D rotational components with two rigidly connected flanges and one output signal y in order to measure relative kinematic quantities between the two flanges or the cut-torque in the flange and to provide the measured signal as output signal for further processing with the blocks of package Modelica.Blocks.