Method for manufacturing magnetostrictive torque sensor
US7562432B2 · kind B2 · utility
2Cited by
24References
2Claims
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Key dates
| Filing date | Oct 19, 2006 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Oct 19, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49103
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for manufacturing a magnetostrictive torque sensor having low nonuniformity of sensitivity characteristics. The residual austenite content in the rotating shaft of the torque sensor is measured first. A magnetic film is subsequently subjected to a heat treatment under heat treatment conditions that are different for each of the measured residual austenite contents, and magnetic anisotropy is imparted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.