Vortex flow meter

Details Vortex flow meter Vortex flow meter

1978-11-09

1980-05-06

Myracle, Jerry W.

Measuring and testing

Volume or rate of flow

System

G01F 132

Patent

active

042010845

ABSTRACT:
A vortex flow meter produces Karman's vortices in a fluid to be measured and a piezoelectric sensor develops a vortex signal therefrom which is proportional to the flow velocity of the fluid. The output signal of the sensor is applied to a charge amplifier and a low pass filter coupled thereto which functions to a predetermined signal amplitude for limiting low and high frequency noise and stabilizing the gain of the system within the vortex frequency measuring range. The output signal is converted by a logic circuit to a pulse signal of vortex frequency and then converted to a DC signal for transmission to an indicator or a receiver.

REFERENCES:
patent: 3948098 (1976-04-01), Richardson et al.
patent: 4164143 (1979-08-01), Anderson

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