Method for improving monitored range of flow sensor
US6626050B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2000 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Aug 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow sensing system capable of improving the monitored range of a flow sensing system. The flow sensing system has a transparent tube, an upper edge sensing assembly, a lower edge sensing assembly and a floating buoy. Under normal operating conditions, the lower edge sensing assembly detects the buoy exactly once during a first timing session, detects no buoy during a second timing session and detects the buoy exactly once during a third timing session. If one of the conditions is violated, a warning signal is issue to a station operator. The upper edge sensing assembly should not detect the buoy throughout the three timing sessions; otherwise, an abnormality has occurred and a warning signal is sent to the station operator. The sensing system prevents the size and length of buoy from interfering with the monitored range so that a more stable flow system is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.