It is known that CCD lines can be used to produce fast angle of rotation sensors, where the light distribution controlled by a code disk is measured with a pixel line and converted into corresponding digital values by an analyzer unit. The object of the present invention is to create a position sensor with a high resolution. For this purpose, the invention proposes several measures, such as pulsed operation of the light source and using a digital code for the code element. Advantageous embodiments involve selecting a maximum code and more accurate determination of the approximate position value thus obtained from the resulting digital value. A further improvement in measurement accuracy can be achieved by shifting the code track or several code tracks arranged radially one inside the other.