Bridge excitation for sensor used on a vortex shedding flow mete

Details Bridge excitation for sensor used on a vortex shedding flow mete Bridge excitation for sensor used on a vortex shedding flow mete

1984-02-01

1985-12-31

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

7386124, G01F 132

Patent

active

045613117

ABSTRACT:
A sensor circuit method of operating a vortex shedding flow meter utilizes A.C. single cycle bursts to intermittently drive a sensor which changes its state with the vortex shedding frequency. The bursts are spaced in time by an amount larger than the burst duration.

REFERENCES:
patent: 3621285 (1971-11-01), Anderson et al.
patent: 3775673 (1973-11-01), Watanabe
patent: 4281553 (1981-08-01), Datta-Barua
P. K. Stein--"Pulsing Strain-Gage Circuits", Instruments & Control Systems, vol. 38, Feb. 1965, pp. 128-134.

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