| 摘要 |
FIELD: physics.SUBSTANCE: apparatus has a crucible with the analysed sample which is coaxially suspended in the heating zone of a vacuum electric furnace on an elastic thread twisted by an electromagnetic unit, with a mirror tied to said thread. The apparatus also has a light source, a computer and a photodetector which consists of a semitransparent measuring scale and two photosensors whose output bus is connected to one of the ports of the control computer. The apparatus has at least two additional pairs of photosensors, wherein the distance between pairs of photosensors is equal and is 5-20 times greater than the centre distance of photosensors inside a pair.EFFECT: providing accuracy, stability and continuous conduction of experiments, cutting duration of experiments, reduced loss of melt components, eliminating subjective influence on the experiment, lowering qualification requirements for the experimenter.2 cl, 8 dwg |
