Method and apparatus for displaying industrial process control p

Details Method and apparatus for displaying industrial process control p Method and apparatus for displaying industrial process control p

1974-06-24

1976-04-20

Caldwell, John W.

Communications: electrical

Systems

Call station

1161365, 200 56R, 324157, 340266, G08B 2900

Patent

active

039522938

ABSTRACT:
A deviation meter, responding to a deviation signal, is mounted on a turntable which rotates in response to a set point adjustment. Rotation of the turntable maintains the null position of the deviation meter pointer at a scale position corresponding to a set point value, so that a direct readout of the actual measurement value is provided.

REFERENCES:
patent: 2464191 (1949-03-01), Wen
patent: 2780686 (1957-02-01), Elliott
patent: 3588516 (1971-06-01), Friedman

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