Method for applying and correcting measuring marks on a carrier

Abstract

The invention relates to a method for applying to a carrier a marking serving to measure length, angle cr the like, such as, for example, a magnetic tape (4), by means of which the accuracy of the measurements is improved. In the case of such methods, in one marking step a means for producing a track with markings, for example a writing head (9), is guided over the carrier and, by virtue of the fact that the carrier is acted upon, markings, for example magnetic north and south poles, are applied therein at predetermined positions of the carrier. According to the invention, it is proposed that in this method the actual positions of a reference point (16), the difference between the the marking of the track are measured with respect to measured actual positions and desired positions are determined, and, when differences are present, corrected marking are applied to the same track of the carrier in a further marking step, positions of markings of the first marking step being changed with respect to positions of markings of the second marking step by values depending on the differences.

Dependencies are inferred from the claim text.