眼动仪在晶体电光调制实验教学中的应用研究

Application of eye tracker in the experimental teaching of crystal electro-optic modulation

根据晶体电光调制实验内容,将教学过程分成了锥光干涉图观察与描绘、极值法测量半波电压和调制法测量半波电压3个阶段.利用眼动仪对学生在这3个阶段的关注兴趣进行追踪,给出了关注兴趣热点分布图及相应的注视时间、注视次数和注视时长占比等参量,由此分析了学生的注意力集中情况,提出了改进实验教学的方法.

According to the experimental content of crystal electro-optic modulation,the teaching process was divided into three stages:cone optical interferogram observation and depiction,extreme value method for measuring half-wave voltage and modulation method for measuring half-wave voltage.The eye tracker was used to track the interests of students in these three stages,and the parameters of the heat map and the corresponding duration of fixation,fixation count and proportion of fixation duration were given.The conditions of the students’attention concentration were analyzed and the method of improving experimental teaching was proposed.