Sensor diagnostics
US11761803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2021 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jan 29, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F25/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow transmitter method and system involves obtaining, via a flow sensor, sensor measurements of flow characteristics of a moving medium; outputting, via a processor, a drive signal for driving a pulse output circuit to generate a pulse signal according to the sensor measurements from the sensor; and generating, via a switching circuit of a pulse output circuit, a pulse signal according to the drive signal. The method and system further involve monitoring, via a diagnostic circuit connected to the switching circuit, current corresponding to the pulse signal; and determining, via the processor, whether the output circuit is operating in a normal or abnormal state based on the drive signal from the processor and a feedback signal corresponding to the monitored current from the diagnostic circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.