综合性传感器模块实验电路设计

Comprehensive experimental sensor module circuit design

传统的传感器实验通常使用台式或箱式实验箱,学生看不见实验箱里的器件及内部电路,只是通过实验箱外部的插孔插接连线完成实验,学生对实验原理理解不深,实验兴趣不高。在实验教学改革过程中,设计了综合性传感器模块实验电路,把多种传感器模块输出的数字信号经过多路拨码开关后作为计数器的时钟信号,通过计数器显示传感器模块的输出结果,实验发现只有轻触开关传感器模块的输出作为时钟时,计数器才能正常计数,其他传感器模块的输出作为时钟时,计数器会发生抖动现象,因此需添加传感器模块硬件消抖电路。经过多轮学生实验,取得了较好的教学效果。

The traditional sensor experimental usually use desktop or box experiment box, students can＇t see the device in the experiment box and internal circuit, only by experiment box outside the jack through successive line to complete the experiment, so the students understanding of experimental prin- ciple is not deep, the experiment interest is not high. In the process of experimental teaching reform, we design the comprehensive experimental sensor module circuit, take the muhiple sensor module out- put digital signal after multiplex dial the code switch as counter clock signal, through the counter dis- plays the output of sensor module. We find that only light touch switch when the output of the sensor module for the clock counter to count properly. The output of the other sensor module as a clock, counter dithering phenomenon will happen, so need to add sensor module hardware disappears shake circuit. After several rounds of student experiment, achieved good teaching effect.