The disciplines of servomechanisms and process-control have been developed for many years. An inherent feature of their practical application was the use of analog components. In an attempt to integrate process-control instrumentation with digital computers and data-processing equipment, it has been necessary to develop new techniques. The underlying mathematical foundation for this treatment is the concept of a sampled-data control system utilizing z transforms.
Published in:
Industrial Electronics and Control Instrumentation, IEEE Transactions on
(Volume:IECI-12
,
Issue:
2
)
Date of Publication: Nov. 1965