Inductive sensor for measurement device
US11169004B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 25, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Mar 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96038
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inductive sensor, particularly for a proximity sensor, includes a resonance circuit including a sensing coil and an amplifier comprising a first gain stage and a second gain stage each coupled via respective adjusting elements with the resonance circuit to inject energy for maintaining an oscillation of the resonance circuit. The first gain stage provides a substantially linear amplification and the second gain stage provides a comparator characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.