A method for generating a tolerance value data bank and system for testing of circuit boards with the use of the tolerance value data bank

摘要

a method and a device for use with a system (23) to fehlererfassung in circuit generates a referenzdatenbankbild of pcb (printed circuit board) (86) with tolerances for each individual schaltungsmerkmal.the invention provides a toleranzdatenbank (50) with at least three conditions, in which each color is weighted and neighboring pixels in instructions or quantities are grouped together. a fehlersignal is generated when the sum of the pixelgewichtungen in a quantity of a predetermined threshold value.