A method for compensation of error influences in a capacitive lengths - or angle measuring system

摘要

A method for compensation of error influences in a lengths - or angle measuring system with a differential capacitor as a sensor element, characterized by the steps of:a) act on two coupling elements c1 and c2 of the differential capacitor with voltage u1 and u2 by injection of charges of the same or different sign to the respective coupling elements, in four steps terminal:aa) wherein, in a step of the pulse of u1 by the transition from the ground to a voltage vcc, and the pulse of u2 through the transition from the ground to vcc is,ab) wherein, in a further step of the pulse of u1 by the transition from vcc to ground, and the pulse of u2 through the transition from vcc is on ground,ac) wherein, in a further step of the pulse of u1 by the transition from the ground to vcc, and the pulse of u2 through the transition from vcc is on ground,ad) in a further..