Test apparatus for thermal testing of unpopulated/populated printed circuit board electrically energized with electrical or electronic components such as integrated circuit, has pyrometric sensor moved for purpose of scanning

The apparatus has a scanning device for pyrometrical scanning of surface temperatures, where the scanning device comprises pyrometric sensor (16) moved for purpose of scanning and adjusted with respect to distance from a printed circuit board (1). The sensor is adjustable in two directions (X, Y) in a plane of the printed circuit board and in a perpendicular direction (Z). The sensor is arranged so as to be pivotably adjustable. The sensor is arranged on a positioning device of a flying probe tester. An independent claim is also included for a method for operating an apparatus for thermal testing of a printed circuit board. Eine Vorrichtung zum thermischen Testen einer unbestückten oder mit elektrischen oder elektronischen Bauelementen (2, 3, 4, 5, 6) bestückten, strombeaufschlagten Platine (1), mit einer Einrichtung (16) zur pyrometrischen Abtastung der Oberflächentemperaturen, ist dadurch gekennzeichnet, dass die Erfassungsreinrichtung einen zur Abtastung verfahrbaren pyrometrischen Sensor (16) aufweist, der in seinem Abstand zur Platine (1) verstellbar ist.