Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Patent
1989-09-22
1991-10-22
Chapman, John E.
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
364510, G01F 166
Patent
active
050584375
ABSTRACT:
The invention is intended for determining the quantity yield of a compressible fluid flowing through a conduit which is provided with a pressure reducing valve. According to the invention, this determination is made by using a vibration sensor which is subjected to vibrations from the pressure reducing valve, and at least one pressure sensor mounted upstream of the valve. The signals emitted by the vibration sensor are processed in a processing unit. These processed signals and the signals emitted by the pressure sensor are digitalized in an analog to digital converter unit, and then sent to a computer, which, using the data previously stored in its memory unit, outputs a value corresponding to the quantity of fluid. The invention is particularly designed for use in measuring the quantity yield of a combustible gas.
REFERENCES:
patent: 3218852 (1965-11-01), Scarpa et al.
patent: 4297607 (1981-10-01), Lynnworth et al.
patent: 4550615 (1985-11-01), Grant
patent: 4875932 (1989-10-01), Uchiyama et al.
Patent Abstracts of Japan, vol. 8, No. 86 (P-269) [1523], Apr. 19, 1984; and JP-A-59 3216.
Bonneric Paul
Chaumont Claude
Waroux Denis W.
Arana Louis M.
Chapman John E.
Gaz de France
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