Geometrical instruments – Distance measuring – Scale reading position sensor
Reexamination Certificate
2011-03-22
2011-03-22
Fulton, Christopher W (Department: 2841)
Geometrical instruments
Distance measuring
Scale reading position sensor
Reexamination Certificate
active
07908762
ABSTRACT:
A device for measuring the relative position of a material measure (10) and a reading head (12) is described, in which the material measure (10) has an incremental scale (14); in which the incremental scale (14) is non-magnetically scanned at a high resolution by a scanner (16) belonging to the reading head (12); in which the material measure (10) has permanent magnets (18), which are positioned at equidistant intervals in the direction of measurement and which establish continuous and adjoining segments (20) within the incremental scale (14); in which the magnetic field created by the permanent magnets (18) following each other in succession is recorded by at least one magnetic sensor (24) belonging to the reading head (12); in which the magnitude of the recorded magnetic field (22) is used to assign the position of the reading head (12) to a step of the incremental scale (14) within the segment (20) defined by these permanent magnets (18); and in which a Wiegand wire device (26, 28) belonging to the reading head (10) produces segment-counting pulses upon traversing the permanent magnets (18) and these pulses are counted and permanently stored in the storage component.
REFERENCES:
patent: 4484391 (1984-11-01), Narimatsu
patent: 5332895 (1994-07-01), Rieder et al.
patent: 6912797 (2005-07-01), Rodi
patent: 6922907 (2005-08-01), Rodi
patent: 7200515 (2007-04-01), Sakabe et al.
patent: 2003/0177649 (2003-09-01), Ito et al.
patent: 2006/0059698 (2006-03-01), Staudt et al.
patent: 2007/0074416 (2007-04-01), Reusing
patent: 2007/0256313 (2007-11-01), McAdam
patent: 2009/0271998 (2009-11-01), Carlen et al.
patent: 10 2005 047 009 (2007-04-01), None
patent: 10 2006 017 865 (2007-10-01), None
Chung Sungyeop
Fulton Christopher W
Meyer Jerald L.
Sick Stegmann GmbH
The Nath Law Group
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