Noise-resistant intermittently operating incremental position sensor
US11181396B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Apr 9, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Apr 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2451
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of operating an intermittently measuring or pulsed incremental position sensor, and a position sensor that has noise detecting circuitry activated during each measurement, triggering corrective measurements as long as the influence of noise is detected. Corrective measurements immediately follow and replace a noise-influenced measurement well before the next scheduled measurement. Noise can be detected as a differential amplifier's common-mode input signal, thus clearly separating the influence of noise from the sensor's differential input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.