A MOLTEN STEEL LEVEL MEASURING INSTRUMENT WITH A LONG SCINTILLATOR

摘要

A molten steel level measuring instrument for a continuous casting machine mould consists of a receiver (101) mounted in a receiver mounting box (102) within a mold reservoir (107), an ? radioactive source (103a) with shadow shielding mounted in a source mounting box (104), and a signal processor and so on . A detector (101f) in the receiver (101) is a long scintillator of end-window type or a long scintillator of side-window type. The long scintillator of end-window type is mounted vertically in a long axis and equipped with turning light guides (101h,101I), and MgO is used as a reflective layer. The long scintillator of side-window type is mounted vertically in a long axis and MgO is mainly used as a reflective layer and a glass window is provided on one side wall. Hence the long scintillator is jointed with a photo-multiplier (101l) whose axis is horizontal orientation.