Coriolis flowmeter having constant voltage sensor
US7677112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2008 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Jul 3, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/8481
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Coriolis mass flowmeter with a Coriolis tube and with an optical detection device, which optical detection device includes at least one optical sensor for generating a signal that is representative of the movement of the Coriolis tube, the optical sensor comprising a light source and a photosensitive sensor, wherein the optical detection device includes elements for applying a constant voltage across the photosensitive sensor during operation independently of the current generated by the photosensitive sensor in response to incident light, as well as elements for determining the value of the current generated by the photosensitive sensor and converting it into an output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.