Abstract
The author described about the method of instrumentation for distillationunit on the fundamental theory and comparatively new method of the instrumentation.Further, he has touched upon the pressure control method a little.
He mainly surveyed in theory the problems of the response which have been oftendiscussed recently, and explained that the study of this field will offer a key for thesolution of the difficult control mechanism of equipments for distillation (tower), andalso explained about control mechanism of cascade.
Finally, he gave a few examples about existing equipments for instrumentation asexamples.
