Medium flow meter
US6370950B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/699
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device for measuring the flow of a medium e.g., a gaseous medium or a fluid medium, which device is based on measuring and affecting the temperature distribution of a medium flowing along, which flow sensor comprises two object, each comprising a heating element and a temperature sensor, the measured temperature difference being kept, by way of a control loop, to the value of zero, the asymmetry of the power supply to the objects in order to comply with the aforesaid criterion, according to which the temperature difference must be zero, being representative of the value to be measured of the medium flow, taking into account parameters associated with the medium, such as its density and specific heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.