Fluidic oscillator and a method of measuring a volume-related quantity of fluid flowing through such a fluidic oscillator
US5864067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluidic oscillator is symmetrical about a longitudinal plane of symmetry in which a longitudinal fluid flow direction is contained. The oscillator generates a two-dimensional jet of fluid that oscillates transversely relative to said longitudinal plane symmetry. An ultrasound signal is generated in the fluid flow travelling from one transducer towards another. The ultrasound signal is received and modulated by the oscillations of the jet of fluid. The received signal is processed to determine a volume-related quantity concerning the fluid that has flowed through said fluidic oscillator. The tow ultrasound transducers are substantially in alignment with the longitudinal plane of symmetry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.