Rotameter-type flowmeter with means for linearizing output readi

Details Rotameter-type flowmeter with means for linearizing output readi Rotameter-type flowmeter with means for linearizing output readi

1979-07-23

1981-04-28

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

G01F 124

Patent

active

042638135

ABSTRACT:
A rotameter-type flowmeter having a rotatable follower magnet which is magnetically coupled to a float magnet which in turn is responsive to the flow rate of the fluid which is to be measured. A calibration magnet is provided which is selectively movable in an arcuate track relative to the rotary axis of the follower magnet so as to alter the magnetic coupling between the follower magnet and the float magnet in such manner as to linearize (i.e., normalize) the output of the flowmeter. In addition, the calibration magnet is movable longitudinally with respect to the follower magnet so as to adjust the scale span of the flowmeter.

REFERENCES:
patent: 3164989 (1965-01-01), Busillo et al.
patent: 3315523 (1967-04-01), Conkling
patent: 3977248 (1976-08-01), Metzger

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