用727分光光度计测试金属材料成分含量的实验

The Experiment of Alloy Composition Analysis by 727 Spectrophotometer

介绍材料成型与控制专业铸造合金及熔炼课程用的727分光光度计测试金属材料成分含量实验的教学案例。从727分光光度计设计原理讲起，较清楚地介绍了该类设备的特点和使用范围。通过讨论比尔（Beel）定律的数学和工程意义，启发同学正确地使用光度计进行器皿选择和仪器操作。

The 727 spectrophotometer is used in the casting alloy lesson to analyze alloy composition. The principle and application of the instrument were introduced. With the discussion of Beel principle and its mathematic and engineering function, the operator can have understand the instrument and operation positively.