Process control apparatus

Details Process control apparatus Process control apparatus

1981-07-14

1984-05-29

Ruggiero, Joseph F.

Boots, shoes, and leggings

364157, 364159, 364162, 364553, G05B 1304, G05B 1702

Patent

active

044518781

ABSTRACT:
A process control apparatus capable of adjusting control constants of a process control operation which controls a controlled process. The process control apparatus includes an identification signal generator for producing a maximum length sequence signal, an adder for adding this maximum length sequence signal and a control signal and supplying it as an operation signal to a process, an operation circuit for identifying the pulse transfer function of a process response from the process signal and the operation signal and processing the transfer function by Laplace-transforming the step response of the pulse transfer function, and a circuit for processing control constants according to the transfer function.

REFERENCES:
patent: 3718813 (1973-02-01), Williams, Jr. et al.
patent: 4067060 (1978-01-01), Poussart et al.
patent: 4214300 (1980-07-01), Barlow et al.
patent: 4232364 (1980-11-01), Bibbero
Automatica, "On Self-Tuning Regulators"; K. J. Astrom and B. Wittenmark, vol. 9, 1973, pp. 185-199.
International Journal of Control, vol. 14, No. 4, 1971, London, B. Pradhan: "On the speed of response of a model-reference . . . ".
IEEE Transactions on Automatic Control, Dec. 1976, N. Y., T. Soderstrom.

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