The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2021
Filed:
Mar. 23, 2020
Mitutoyo Corporation, Kanagawa-ken, JP;
Ted Staton Cook, Kirkland, WA (US);
Mitutoyo Corporation, Kanagawa-ken, JP;
Abstract
An electronic position encoder includes a scale and a detector. The detector includes a field generating coil (FGC) having elongated portions bounding a generated field area, and a sensing area, both aligned along the scale. Sensing elements in the sensing area provide position signals responsive to the scale interacting with the generated field. Sensing elements and elongated portions are fabricated in 'front' layers of the detector portion. A crosswise shielded end section (SES) fabricated in a 'rear' layer connects the elongated portions via feedthroughs. The sensing element area is longer than the elongated portions of the FGC. A projection of the SES normal to the layers overlaps sensing elements in the sensing element area. A conductive shield region CSR is configured in a CSR layer interposed between the front and rear layers to intercept at least a majority of the projection of the SES toward the overlapped sensing elements.