| 摘要 |
The invention relates to a method and to an arrangement for measurement signal evaluation in incrementally controlled drives. The aim of the invention is to create a method and an arrangement for its implementation, which method allows as many rotor positions as desired to be set without any quantisation error within one basic signal period, and makes possible movement at a low constant speed and with very good synchronism. The object is achieved in that at least one intermediate curve at any desired phase is produced by the summation of basic signals which are assessed in terms of amplitude, which intermediate curve is used as the control error for fine positioning. Using division coefficients, which can be set electronically, of the basic signals which are to be added, any desired position can thus be set, without any quantisation error, even within one basic signal period, in a controlled drive which acts as a phase locked loop. If the control frequency for the electronic multipliers or potentiometers which are used for setting the division coefficients is constant, a movement takes place at a constant speed and with good synchronism, even at low speeds. |
