The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Jun. 28, 2004
Yasushi Baba, Tokyo, JP;
Yasushi Baba, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In a method of adjusting a process control device wherein a closed loop system comprising a control subject and external compensator is approximated by a transfer function expressed by the time constant of a first-order delay filter and a dead time, adjustment is effected by displaying the step response of the closed loop system as a first response, displaying the step response of a model transfer function of the closed loop system as a second response in superimposed fashion with the first response, adjusting the respective parameters so that the difference of the first response and the second response is within a prescribed evaluation standard range, and performing prescribed conversion and setting of this model parameter as a control parameter of the controller, so that the response of the process control device is within a prescribed evaluation standard range.