Apparatus for sensing rotating device
US11054436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2019 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Oct 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for sensing a rotating body includes a cylindrical supporting member being connected to a rotating shaft, a unit to be detected including a first pattern portion provided in a first height region of the supporting member, and the first pattern portion including first patterns extended in a rotation direction of the rotating shaft and a second pattern portion provided in a second height region of the supporting member, extended in a rotation direction of the rotating shaft, and the second pattern portion including second patterns having an angle difference with the first patterns, and a sensor module including a first sensor disposed opposite to the first pattern portion and a second sensor disposed opposite to the second pattern portion, the first patterns and the second patterns are formed of a metallic material, and each of the first sensor and the second sensor includes a sensing coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.