TOLERANCE LIMITATION MEASURING PROCESS AND APPARATUS FOR OPTIMIZATION OF TECHNOLOGICAL PARAMETERS BASED ON VISUAL EVALUATION OF THE DISPLAYED MEASURING RESULTS

摘要

ABSTRACT OF THE DISCLOSUREThe invention provides a process for determinationas to what tolerance range is permissible as independentfactor in the combination of the process and condition char-acteristic parameters to ensure the dependent factorialvalue within the tolerance range specified for one, orseveral qualitative characteristics of the product obtainedas a result of the process, in case of technological pro-cesses characterized with multi-factorial technologicalparameters, in the course of which by setting the indepen-dent factors of the technological process to experimentalvalue, then changing the setting as necessary, the momen-tary values of the independent factors are measured and thedependent factor(s) is/are measured continuously, by sampletaking, and/or as final values, by processing the measur-ing data as necessary with microprocessor the dependentfactorial values corresponding to the various value-combina-tions of the independent factors are determined, the resultis displayed on the video screen, the process characteris-tics are modified as necessary according to the visual eva-luation of the displayed image and this process is repeateduntil the searched final result is obtained, characterizedin that the extent of beam deflection is calibrated on thedisplay unit according to the dimenson of the independentfactor representing at least one technological parameter inone of the directions and according to the dimension of theindependent factor representing at least one furthertechnolgoical parameter in the other - e.g. vertical -direction, the brightness and/or colour in the image spot ofthe video screen determined by the deflection according tothe given momentary value are controlled according to thevalue of the dependent factor appearing at a concretemomentary value of above factors, and level lines identi-cally oriented with the two deflection directions aresuperposed mechanically or electronically on the displayedimage, and by changing the position of the level linesindependently from each other the lower and upper limitvalues in both directions are determined, within which atany possible combination of the independent factors thebrightness and/or colour of the image spot will remainwithin the permissible tolerance range at any point of thelimited area.