Temperature control method using empirically determined characte

Details Temperature control method using empirically determined characte Temperature control method using empirically determined characte

1996-10-21

1997-12-30

Paschall, Mark H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219492, 374 1, 374103, 364166, H05B 102

Patent

active

057033420

ABSTRACT:
The present invention relates to a method for controlling the temperature of a system in accordance with a desired temperature curve which is divided into predetermined time intervals. It is the object of the present invention to control the temperature of the system in such a manner that the predetermined and desired temperature curve is observed as exactly as possible. The temperature control method is characterized in that the heating power to be applied to the heating device during one time interval is determined in response to the desired temperature and the heating-up rate of the respective time interval by using empirically determined dynamic heating-up and cooling characteristics typical of the system, that the heating power determined for each time interval is converted according to a calibration curve into a set value for a voltage control device, that the heating power actually applied to the heating device is determined within each time interval, said heating power having assigned thereto a set comparative value by means of the calibration curve, and that, when the set value deviates from the set comparative value by more than a predetermined and set tolerance value within the respective time interval, the set value of the respectively successive time interval is changed in response to said deviation.

REFERENCES:
patent: 3346341 (1967-10-01), Sternberg
patent: 4194826 (1980-03-01), Lewis
patent: 4913038 (1990-04-01), Burkett et al.
patent: 5026971 (1991-06-01), Payne et al.
patent: 5422806 (1995-06-01), Chen et al.
patent: 5427720 (1995-06-01), Kotzab
Sandweg-Kohmann, Astrid: Regelung eines ereignisdiskreten Stuckprozesses. In: at.--Automatisierungstechnik, 40, 1992, S. 357-361, Kap. 2,3,5.
Montaser, Akbar; Crouch, S.R.; New Methods for Programmed Heating of Electrically Heated Nonflame Atomic Vapor Cells. In: Analytical Chemistry, vol. 47, No. 1, Jan. 1975, S.38-45.

Affiliated with

Also associated with

Rating

Temperature control method using empirically determined characte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature control method using empirically determined characte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature control method using empirically determined characte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-204610