一种微型声光电导笔的研制

Development of a miniature acousto-optic apparatus of electric conductance

针对大学化学实验,研制了一种微型声光电导笔。该电导笔采用声音和灯光同时指示导体电导的大小,具有直观、现象明显,并有半定量的指示效果;其体积较小,便于携带;不必用交流电源,操作简单、安全,实验成功率高;且造价较低,适合于推广普及。

A miniature acousto-optic apparatus of electric conductance used in the college chemical laboratory is developed. Indicating the conducting power of the conductor by light and sound, the device is fit for the semiquantitative chemical experiment teaching in college. And it is worth popularizing with the characteristics of minitype, portability, simplicity of operation, safety, high success ratio of experiment and low cost.