Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Patent
1978-05-04
1981-08-04
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
73189, G01F 132
Patent
active
042815533
ABSTRACT:
A vortex shedding flowmeter is provided with a unitary obstacle element for shedding vortices and response element reacting to forces produced by the shedding vortices. A cylindrical element may be used for omni-directional measurement capability, with a pair of strain gauge bridges arranged in quadrature to provide a linearly variable frequency output proportional to flow velocity. Electronic circuitry transforms the frequency signal to an analog amplitude signal proportional to flow velocity. Sample and hold circuitry maintains a stable output under transient loss-of-input signal conditions.
REFERENCES:
patent: 1215135 (1917-02-01), Fisher
patent: 1935445 (1933-11-01), Heinz
patent: 2809520 (1957-10-01), Richard, Jr.
patent: 2813424 (1957-11-01), Liebmann
patent: 3552204 (1971-01-01), Tourmen
patent: 3680375 (1972-08-01), Joy et al.
patent: 3693438 (1972-09-01), Yamasaki et al.
patent: 3720104 (1973-03-01), Zanker
patent: 3867839 (1975-02-01), Herzl
patent: 3878714 (1975-04-01), Protta et al.
patent: 3878715 (1975-04-01), Kobayashi
patent: 3878716 (1975-04-01), Asada
patent: 3888120 (1975-06-01), Burgess
patent: 3927566 (1975-12-01), Zanker
patent: 3948097 (1976-04-01), Kurita et al.
patent: 3979954 (1976-09-01), Ide et al.
patent: 4033188 (1977-07-01), Herzl
patent: 4069708 (1978-01-01), Fussell, Jr.
patent: 4122712 (1977-11-01), Thomas
patent: 4171643 (1979-10-01), Frick
Yamasaki et al, "The Karman Vortex Flowmeter", in J. Soc. Inst. Cont. Eng., (Japan), vol. 10, #3, 3/71, pp. 173-180.
LandOfFree
Vortex shedding flowmeter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vortex shedding flowmeter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vortex shedding flowmeter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-233859