foerfarande foer a.t.f. utan beroering avsoeka i glasskiva i bearbetningstemperatur dao den transporteras genom i ugnsanlaeggning.

摘要

For the contactless detection of a glass sheet heated to the deformation temperature during its transport through a furnace installation, use is made of a light barrier which operates by reflection and the photoelectric module (10) of which is arranged outside the high-temperature zone next to the furnace (1). The measuring head (9) is located in the immediate vicinity of the transport plane of the glass sheets and is connected to the photoelectric module (10) by means of fibre optics (13) comprising a light guide for the light coming from the module (10) and a light guide for the light reflected by the glass sheet. IMAGE