Apparatus for measuring weight and force

Apparatus for measuring weight and force, including a weighing and force-measuring system having a fixed part, a load reception part arranged for deflection on the fixed part, a device for providing a constant magnetic field in operative proximity with the load reception and fixed parts, a compensation coil arrangement in the constant magnetic field, and at least one position sensor for ascertaining load-dependent deflections of the load reception part from a predetermined position, said position sensor producing a sensor signal for regulating the current through the compensation coil arrangement so that the load reception part is returned to its predetermined position, said apparatus comprising

• a regulator circuit electrically connected to said position sensor and receiving said sensor signal from said position sensor, said regulator circuit including an input electrically connected to said position sensor and an output electrically connected to said compensation coil arrangement, said regulator circuit regulating the current flowing through said compensation coil arrangement to return said load reception part to its predetermined position and to alternately impart positive and negative values, determined by the loading, to the current flowing through said compensation coil arrangement,
• wherein said regulator circuit imparts the same maximum amplitude to the positive and the negative values of the current flowing through the compensation coil arrangement, after cessation of current variation due to a change of direction of said load reception part.