Measuring and testing – Volume or rate of flow – Mass flow by imparting angular or transverse momentum to the...
Patent
1986-10-14
1988-11-08
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Mass flow by imparting angular or transverse momentum to the...
364510, G01F 184
Patent
active
047827114
ABSTRACT:
A method and apparatus for determining mass flow of fluid flowing within a conduit. The conduit is oscillated periodically transverse to the flow therein, and sensors sense the movement of the conduit at discrete, spaced locations on the conduit. The sensors generate periodic signals representative of the movement of the conduit at said locations. The method of the present invention comprises the steps of determining the instantaneous amplitude difference between the signals at a plurality of discrete adjacent intervals (which may or may not be of equal width), determining the product of the absolute value of the instantaneous amplitude difference and the amplitude of the interval for each said interval, determining the sum of said products for each interval over a cycle of oscillation, and generating from the sum a signal representative of mass flow.
An apparatus according to the invention comprises circuitry for determining the instantaneous amplitude difference between the signals from the sensors of the flow meter at a plurality of discrete, adjacent intervals, circuitry for determining the product of the absolute value of the instantaneous amplitude difference and the width of the interval for each said interval, circuitry for determining the sum of the products for each interval over a cycle of oscillation, and circuitry for generating from the sum a signal representative of the mass flow. The circuitry may comprise discrete circuitry or may be subsumed within a microprocessor.
REFERENCES:
patent: 3087325 (1963-04-01), Roth
patent: 3355944 (1967-12-01), Sipin
patent: 4187721 (1980-02-01), Smith
patent: 4628744 (1986-12-01), Lew
patent: 4635485 (1987-01-01), Lew
patent: 4653332 (1987-03-01), Simonsen
patent: 4655089 (1987-04-01), Kappelt et al.
patent: 4658657 (1987-04-01), Kuppers
patent: 4660421 (1987-04-01), Dahlin et al.
patent: 4680974 (1987-07-01), Simonsen et al.
patent: 4689989 (1987-09-01), Aslesen et al.
patent: 4691578 (1987-09-01), Herzl
patent: 4703660 (1987-11-01), Brenneman
Soviet Inventions Illustrated, No. SU-732-672, printed and published by Derwent Publications Ltd. (Feb. 1981).
Danfoss Co., "MASSFLO".
Exac Corp., Digital Precision Mass Flow Meter.
Smith Meter Co., "S-MASS", 1985, Brochures A, B, and C.
Micro Motion, Model D25.
Instrument Engineers Handbook (Rev. Ed.), Mass Flow Meters (pp. 87-90), 1982.
Micro Motion, Remote Electronics Instruction Manual & Supplement.
Krohne-"CORIMASS" Mass Flow Meter Brochure.
Rheonik-"SERICO RHM" Mass Flow Meter Brochure.
E & H Flowtec-"M POINT" Flow Meter Brochure.
Goldstein Herbert
K-Flow Division of Kane Steel Co., Inc.
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