Scale and method for producing this scale and position measuring system employing such a scale

A method for producing a scale, comprising:

• providing a first base body, when considered in isolation, having a structure comprising:
• a first set of non-magnetizable supports;
• and
• a first set of magnetic elements that are arranged laterally next to one of said first set of non-magnetizable supports, are magnetized in a single identical direction and are arranged in a measuring direction, wherein said first set of magnetic elements are arranged within a first set of tracks and wherein each of said first set of tracks are bounded only by two parallel walls of adjacent ones of said first set of non-magnetizable supports, and wherein said first set of tracks, viewed vertically with respect to said measuring direction, are arranged spaced apart from each other by a space;
• providing a second base body, when considered in isolation from the first base body, has a structure comprising:
• a second non-magnetizable support;
• and
• a second set of magnetic elements that are arranged laterally next to said second non-magnetizable support, are magnetized in said single identical direction and are arranged in said measuring direction;
• and
• combining said first base body with said second base body by sticking them together such that;
• in said measuring direction alternating ones of said first and second sets of magnetic elements are arranged and said first and second sets of magnetic elements have different magnetic orientations with respect to each other, and wherein said one of said first non-magnetizable supports and said second non-magnetizable support are arranged in at least said space;
• and wherein said first set of tracks are concentric with one another and said first and second non-magnetizable supports are arranged in the form of concentric rings between two of said first set of tracks.

A position measuring system comprising:

• a scale, comprising:
• a first base body, when considered in isolation, having a structure comprising:
• a first set of non-magnetizable supports;
• and
• a first set of magnetic elements that are arranged laterally next to said first non-magnetizable support, are magnetized in a single identical direction and are arranged in a measuring direction, wherein said first set of magnetic elements are arranged within a first set of tracks, wherein each of said first set of tracks are bounded only by two parallel walls of adjacent ones of said first set of non-magnetizable supports, and wherein said first set of tracks, viewed vertically with respect to said measuring direction, are arranged spaced apart from each other by a space;
• a second base body, when considered in isolation from the first base body, has a structure comprising:
• a second non-magnetizable support;
• and
• a second set of magnetic elements that are arranged laterally next to said second non-magnetizable support, are magnetized in said single identical direction and are arranged in said measuring direction;
• and
• wherein said first base body and said second base body are put together such that:
• in said measuring direction alternating ones of said first and second sets of magnetic elements are arranged and said first and second sets of magnetic elements have different magnetic orientations with respect to each other;
• and wherein said one of said first set of non-magnetizable suports and said second non-magnetizable support are arranged in at least said space;
• and wherein said first set of tracks are concentric with one another and said first and second non-magnetizable supports are arranged in the form of concentric rings between two of said first set of tracks;
• and
• a scanning element, which is sensitive to a magnetic field, for scanning said first and second sets of magnetic elements.

A scale, comprising:

• a first base body, when considered in isolation, having a structure comprising:
• a first non-magnetizable support in the form of a first ring;
• and
• a first set of magnetic elements that are arranged only laterally next to said first non-magnetizable support, are magnetized in a single identical direction and are arranged in a measuring direction so as to define a second ring that is concentric with said first ring;
• a second base body, when considered in isolation from the first base body, has a structure comprising:
• a second non-magnetizable support in the form of a third ring;
• and
• a second set of magnetic elements that are arranged only laterally next to said second non-magnetizable support, are magnetized in said single identical direction and are arranged in said measuring direction so as to define a fourth ring that is concentric with said first, second and third rings and offset with respect to said second ring;
• and
• wherein said first and second sets of magnetic elements have different magnetic orientations with respect to each other.

A method for producing a scale, comprising:

• providing a first base body, when considered in isolation, having a structure comprising:
• a first non-magnetizable support in the form of a first ring;
• and
• a first set of magnetic elements that are arranged only laterally next to said first non-magnetizable support, are magnetized in a single identical direction and are arranged in a measuring direction so as to define a second ring that is concentric with said first ring;
• providing a second base body, when considered in isolation from the first base body, has a structure comprising:
• a second non-magnetizable support in the form of a third ring;
• and
• a second set of magnetic elements that are arranged only laterally next to said second non-magnetizable support, are magnetized in said single identical direction and are arranged in said measuring direction so as to define a fourth ring that is concentric with said first, second and third rings and offset with respect to said second ring;
• and
• combining said first base body with said second base body by sticking them together, wherein said first and second sets of magnetic elements have different magnetic orientations with respect to each other.

A position measuring system comprising:

• a scale, comprising:
• a first base body, when considered in isolation, having a structure comprising:
• a first non-magnetizable support in the form of a first ring;
• and
• a first set of magnetic elements that are arranged only laterally next to said first non-magnetizable support, are magnetized in a single identical direction and are arranged in a measuring direction so as to define a second ring that is concentric with said first ring;
• a second base body, when considered in isolation from the first base body, has a structure comprising:
• a second non-magnetizable support in the form of a third ring;
• and
• a second set of magnetic elements that are arranged only laterally next to said second non-magnetizable support, are magnetized in said single identical direction and are arranged in said measuring direction so as to define a fourth ring that is concentric with said first, second and third rings and offset with respect to said second ring;
• and
• wherein said first base body and said second base body are put together and said first and second sets of magnetic elements have different magnetic orientations with respect to each other;
• and
• a scanning element, which is sensitive to a magnetic field, for scanning said first and second sets of magnetic elements.