METHOD FOR PYROMETRICALLY MEASURING THE TEMPERATURE OF THE MELT MATERIAL IN MONOCRYSTAL CULTIVATION SYSTEMS

摘要

The invention relates to the field of metrology and relates to a method for pyrometrically measuring the temperature of the melt material in monocrystal cultivation systems. The object of the invention is to specify a method which can be used to determine the temperature of the melt material without being influenced by other heat radiators. The object is achieved by means of a method in which the melting region is heated using radiation sources which contain at least one IR radiation component, and the effect of the radiation sources on the melting region is interrupted for temperature measurements, and the temperature measurements are solely carried out during the interruption period, wherein the interruption is effected at least until the t90 time of the pyrometer. The object is also achieved by means of an apparatus comprising at least one radiation source having at least one IR radiation component, at least one pyrometer and at least one device for interrupting the effects of the radiation source on the melting region.