Automated flow measuring device
US5394759A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1993 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Apr 14, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P5/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A probe for measuring fluid velocity through a conduit has a pitot tube connected to a multiple channel cylindrical tube which is placed within a tubular housing. Drive motors are provided to permit precise rotation and longitudinal movement of the cylindrical tube and attached pitot tube in the conduit, typically a stack or duct. At least one differential pressure gauge is connected to the cylindrical. A computer directs movement of the cylindrical tube, receives differential pressure and static pressure readings from the differential pressure gauge and utilizes that data to calculate flow of the fluid through the conduit. The device is particularly useful for measuring stack gas flow which flow can be utilized to determine emissions of pollutants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.