Multi-variable mass/flow rate transfer device
US7519482B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2007 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | May 5, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/075
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-variable mass/flow rate transfer device is provided with: a differential pressure/static pressure/temperature calculating unit for calculating a differential pressure value, a static pressure value, and a temperature value in real time based upon a signal detected from a process; an instantaneous flow rate calculating unit for calculating an instantaneous flow rate based upon the differential pressure value, the static pressure value, and the temperature value; an accumulation counter for accumulating the calculated instantaneous flow rate of the instantaneous flow rate calculating unit so as to produce an accumulated flow rate; and an accumulated flow rate alarm unit for producing an alarm when the accumulated flow rate produced by the accumulation counter becomes a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.