【摘要】 阐述过去物理化学实验课中原电池电动势的测量方法，并根据多年的物化实验经验，研制出新型原电池电动势测定仪。新研制出的原电池电动势测定仪，实现了电动势信号的自动采集、输出和数字实时显示。利用此原理，把过去比较复杂的电路线连接，集中在一个箱内，在显示器上直读出来，这样缩短了物化实验课的时间，提高了物化实验的质量，适应了教学改革的需要。更多还原

【Abstract】 On the basis of our teaching experience, a new apparatus for measuring potential of chemical cell was developed. The information coming from the cell may be collected and put out automatically, and nu merals show need not detain long. Using the apparatus, we may shorten the time for the experiment, improve the quality of teaching experiment and meet the needs of teaching refom.更多还原