Coriolis flow meter and method for determining a signal difference in cabling and first and second pickoff sensors
US7694584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2004 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | May 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/8477
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Coriolis flow meter includes first and second pickoff sensors, cabling coupled to the first and second pickoff sensors, and a signal injection device coupled to the cabling. The signal injection device is configured to generate one or more reference signals, with the one or more reference signals being substantially identical in phase, and communicate the one or more reference signals into the cabling and the first and second pickoff sensors. The Coriolis flow meter further includes a signal conditioning circuit coupled to the cabling. The signal conditioning circuit is configured to receive first and second response signals from the cabling and the first and second pickoff sensors in response to the one or more reference signals and determine a signal difference between first and second response signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.