Digital pressure controller

Details Digital pressure controller Digital pressure controller

G - Physics

05

D

341/39

G05D 16/20 (2006.01)

Patent

CA 1077155

DIGITAL PRESSURE STANDARD Abstract of the Disclosure Pressure regulator system and apparatus for producing a controlled output pressure corresponding to a pre-programmed BCD set point command. Measured values of output fluid pressure emitted from the regulator is applied in BCD signal form to electronic logic in which the measured signal is compared with the signal of the set point. In response to a determined differ- ential between signals, output pressure is changed in a series of repetitive but rate variable differential reduction steps until set point pressure is achieved. In each step a D. C. motor under control of a logic actuated servo-system operates a force balanced air system to adjust a primary control pressure which in turn operatively resets the output pressure of the regulator.

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