Winding and scale configuration for inductive position encoder
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Mar 29, 2022
Grant Date -
Sep 24, 2020
app pub date -
Jun 10, 2020
filing date -
Jun 10, 2020
priority date (Note) -
In Force
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Abstract
A pitch compensated inductive position encoder includes a scale comprising first and second tracks including periodic patterns having a wavelength W, a detector, and signal processing. The second track pattern may be shifted along the measuring direction by a pattern offset STO relative to the first track pattern. In the detector, first-track and second-track field generating coil portions generate fields in first and second interior areas aligned with the first and second pattern tracks, respectively. First and second sensing coil configurations that are aligned with the first and second tracks, respectively, are offset relative to one another by STO+/−0.5*W along the measuring direction. In various embodiments, the first and second sensing coil configurations may have the same sequence of individual coil polarities if the generated field polarities are different, and may have inverted or opposite sequences if the generated field polarities are the same.
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- 15 United States
- 10 France
- 8 Japan
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- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MITUTOYO CORPORATION | KAWASAKI-SHI KANAGAWA 213-8533 |
International Classification(s)

- 2020 Application Filing Year
- G01B Class
- 1997 Applications Filed
- 1356 Patents Issued To-Date
- 67.91 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cook, Ted Staton | Kirkland, US | 32 | 302 |
# of filed Patents : 32 Total Citations : 302 |
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- G01B Class
- 0 % this patent is cited more than
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