| 摘要 |
A speed governor, in which the actual values which are required for comparison with the desired values are tapped by a device, is subject to manufacturing tolerances. Automatic compensation of these so-called dividing errors is provided when the individual tacho pulses are assigned their own command variables, for the storage of which a memory is provided, and when these command variables are continuously corrected in an auxiliary regulator as a function of the system deviation determined in each case, and filed in the memory instead of the old values. Such an input control, which senses the relative errors between the adjacent tacho pulses, facilitates an exact setting of the desired rotational speed, such as is necessary, for example, in video recorders in order to obtain a good picture. <IMAGE> |
