Apparatus for measuring mass flow of fluids
US4050304A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1976 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Sep 27, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/3227
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring the mass flow of fluids comprises a fluidic oscillator which oscillates at a frequency dependent on the volume flow rate through the oscillator, a circuit is responsive to signals which are respectively dependent on the oscillating frequency and on the pressure difference across the oscillator to generate an output signal proportional to EQU 2Sc.sub.o.sup.3/2 A.sub.o.sup.2. P/f where PA1 S = strouhal number of the oscillator PA1 c.sub.o = orifice coefficient of the oscillator PA1 A.sub.o = equivalent area of the oscillator PA1 P = pressure difference across the oscillator PA1 f = frequency of oscillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.