Position-measuring device

A position-measuring device, comprising:

• a scale having a first measuring graduation and a second measuring graduation, the first measuring graduation including a series of graduation structures which each extend parallel to a first direction, the second measuring graduation including a series of graduation structures which each extend parallel to a second direction, the first and second directions extending at a respective angle different from 0° with respect to a longitudinal axis of the scale;
• a first scanning unit associated with the first measuring graduation for scanning the first measuring graduation;
• a second scanning unit associated with the second measuring graduation for scanning the second measuring graduation;
• a third scanning unit associated with the second measuring graduation for scanning the second measuring graduation;
• and
• a fourth scanning unit associated with the first or second measuring graduation for scanning the first or second measuring graduation, respectively,
• wherein, in a case that the fourth scanning unit is associated with the first measuring graduation for scanning the first measuring graduation, a first straight connecting line running through scanning locations of the first and fourth scanning units and a second straight connecting line running through scanning locations of the second and third scanning units are parallel or form a predetermined angle therebetween, the predetermined angle being not equal to a sum of the angle of the first direction and the angle of the second direction, and
• wherein, in a case that the fourth scanning unit is associated with the second measuring graduation for scanning the second measuring graduation, the scanning locations of the second, third and fourth scanning units do not lie on a common straight connecting line.