Switch-activated zero checking feature for a Coriolis flowmeter
US7337084B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2005 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Jun 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/849
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Descriptions are provided for implementing flowmeter zero checking techniques. In operating a flowmeter, it may be the case that, even if previously calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flow. Therefore, zero checking features are provided that allow for fast and accurate determinations of the zero-flow values, for use in adjusting later measurements. The zero-checking features include a button attached to an exterior of a flowmeter, so that it is easily accessible to an operator of the flowmeter. The button, in conjunction with an internal zero checking system, allows for a display of a zero value in response to a request from the operator of the flowmeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.