measuring method for wegmessung by resolvers and inductosyn.

摘要

A method for measuring distance by means of a resolver and a synchro or for measuring angles or for continuous position detection is described, in which periodic squarewave signals U1, U2 are supplied to the input coils of a measuring device and an output signal U3 is generated at the output of the measuring device by induction in another coil. The pulse width of the squarewave signals at the input of the measuring device follows a digital value beta , the pulse widths of the squarewave signals being widened or narrowed step by step by means of a digital value beta in accordance with a coarse resolution and the output signal U3 being calibrated for zero depending on the value alpha corresponding to the mechanical position and depending on the digital value beta by correcting counters which have the digital value beta , and the known digital value beta then corresponding to the mechanical position alpha . In the measuring method described, a higher resolution is achieved by additional fine resolution in that, when the pulse width of the squarewave control signals is changed, the amplitude of the next pulse width of the squarewave control signals is first changed step by step in accordance with individual steps of an additional fine resolution.