Measuring device with magneto-resistive electrodes, and measuring method
US6724186B2 · kind B2 · utility
28Cited by
9References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Electronic circuit for dimension-measuring device with magneto-resistive electrodes supplying at least one feed voltage for feeding a network of magneto-resistive electrodes and a measuring circuit comprising two differential inputs connected to the network. The measuring circuit uses a rough counter and a fine interpolation circuit for determining from the two sinusoidal input signals received the position of the sensor along the scale. The feed circuit periodically reduces the supplied electric feed voltage so as to temporarily lessen the dissipation of energy in the magneto-resistive electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.