Patent ID: 6629020
Filing Date: 2003-09-30
Classification: G01D,G05D

Abstract:
Control device for the position of a valve slide having a set point transmitter operated by an operating d.c. voltage, the set point transmitter producing a set point signal proportional to the position of a control lever and the operating d.c. voltage, and having an actual value transmitter operated with the same operating d.c. voltage as the set point transmitter, the actual value transmitter producing an actual value signal proportional to the position of the valve slide and the operating d.c. voltage, the actual value signal for the valve slide having a proportionality factor dependent on the position of the valve slide and on the operating d.c. voltage and the set point signal for the control lever having a proportionality factor dependent on the position of the control lever and on the operating d.c. voltage, and having a regulating device having a comparator, which regulating device makes the position of the valve slide follow the position of the control lever in dependence on a difference between the set point signal and the actual value signal detected by the comparator, and in which the actual value transmitter converts the position of the valve slide touchfree into the actual value signal.