Proximity sensor monitor
US9803999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2013 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2829
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention generally relates to proximity sensor monitors and proximity monitor systems incorporating proximity sensor monitors. A proximity sensor monitor measures the impedance or other electrical characteristics of a proximity sensor component to determine the presence of a target. The proximity sensor monitor performs this measurement independently of a separate proximity sensor. The proximity sensor monitor is configured to compensate for differences between the measurement frequency of the proximity sensor monitor and the driving frequency of the proximity sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.