Verification of a level gauge system
US9024807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2012 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method of verifying a measurement accuracy of a level gauge system. The method comprises determining a first measurement value indicative of a time-of-flight of a first electromagnetic reflection signal to a reference reflector and back; determining a measurement unit verification measurement value based on a response signal from a verification arrangement; determining a second measurement value indicative of a time-of-flight of a second electromagnetic reflection signal to the reference reflector and back; and determining a verification result based on the first measurement value, the second measurement value and the measurement unit verification measurement value. Through embodiments of the present invention, it will be verified that the measurement unit is functioning correctly and that level gauge system works as it should also after being reconnected to the propagation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.