UNIT STUDY surface tension and density of the sample metal alloys

摘要

The invention relates to the technical physics, in particular to the determination of physico-chemical parameters of metallic alloys by geometry "large drop", i.e. by measuring parameters lying motionless on the substrate ellipsoidal drop alloy sample by photometric obemometrii.; The object of the utility model is the operative quantification of sample contamination, reducing the subjectivity of evaluating the results of experiments, extending functionality of the method, ensuring lower qualification requirements for the experimenter.; Apparatus characterized in that it introduced first differential amplifier, a second differential amplifier, a summing amplifier, the response threshold of the second differential amplifier controller, the first and second inputs of the first differential amplifier are connected to the computer, the output of the summing amplifier is coupled to one input of the second differential amplifier, the other input of the second differential amplifier connected to the output of the second control threshold of the differential amplifier, and the output vtorog of the differential amplifier is connected to the computer.; Technical solutions provide operational capabilities indicating quantitative contamination of a metal alloy sample at his study and qualification reduce personnel requirements. 1 PF-ly, 4 Fig.