Profile determining and/or controlling system
AssigneeBakelite Xylonite Limited
InventorEdward Browell Atkinson
Life of this patent
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Abstract
A system for determining and/or controlling the profile of a property of an article, in which sensing means simultaneously obtains a multiplicity of electrical gauging signals, each signal being proportional to a property of the article in a particular region, the gauging signals are passed to electrical circuit means which detect any difference in magnitude between the signals from a given region and the average for all such signals and deriving a functional signal for any such difference.
Claims7
A method for controlling the profile of a characteristic of an article, which comprises the steps of measuring said characteristic by means of a plurality of individual sensing means, simultaneously producing an individual electrical gauging signal for each sensing means determining the average of all said individual signals, the magnitude of each individual signal being a substantially linear function at least over a working range of the characteristic at a particular region of the article, the slopes of all the substantially linear functions having the same sign, detecting any difference in magnitude occurring between each individual signal and said average of all said signals, electrically deriving directly from said difference a functional signal for any such difference which is correlated with the region of the article from which it is derived and utilizing each functional signal to control a device for adjusting said characteristic of at least one article subsequently produced in the same run of an article producing apparatus in any region for which a functional signal is produced so as to reduce any difference between the gauging signal from that region and the average of all the gauging signals.
Apparatus for controlling the profile of a characteristic of an article, said apparatus comprising a plurality of individual sensing means for measuring said characteristic, means for simultaneously producing an individual gauging signal for each sensing means, and means for determining the average of all said individual signals, the magnitude of each individual signal being a substantially linear function, at least over a working range, of said characteristic at a particular region of the article with the slopes of all the substantially linear functions having the same sign, means for detecting any difference in magnitude between each individual signal and said average of all said signals, means for electrically deriving directly from said difference a functional signal for any such difference which is correlated with the region of the article from which it is derived, and means for utilizing each functional signal to control a device for adjusting the characteristic of the article or articles subsequently produced in the same run of an article producing apparatus in any region of the article for which a functional signal is produced so as to reduce any difference between the gauging signal from that region and the average of all the gauging signals.
Dependencies are inferred from the claim text.