Phase magnitude signal detector
US5902934A · kind A · utility
23Cited by
5References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1995 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Aug 1, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S73/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetostrictive stress and torque sensor using the component of the output signal in-phase with the drive voltage to monitor stress or torque. In some embodiments, it may use the quadrature or out-of-phase component, or some combination of the in-phase and out-of-phase components. Such phase component monitoring has several advantages over magnitude detection, including a response which is a more linear function of torque, and which is not subject to overmodulation problems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.