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近几年来微库仑分析技术已被广泛应用。商品微库仑分析仪的型号日益增多,其精度和自动化程度不断提高,仪器的线路也日趋复杂。但是,在缺乏分析仪器维修力量而对分析精度要求又不高的生产单位,为了满足生产需要自装一些简单的微库仑仪也是必要的。一般自装的恒电流微库仑仪,常用微安表指示电解电流,用秒表或电秒表、机械记数器等手动或自动记录电解时间。再根据库仑定律,计算出被分析的物质量来。在分析过程中计时的不准是分析误差的主要来源之一。为了提高分析精度,将“卡西欧牌(Casio)EL-8131型”(日)小型计算器,经过简单的改装制成了
In recent years, microcoulomb analysis has been widely used. Commodity microcoulomb analyzer models are increasing, and its accuracy and automation continue to increase, the instrument lines are also increasingly complex. However, it is also necessary to install some simple microcoulomb instruments in order to meet production needs in production units that lack the analytical instrument maintenance power and do not require high analytical precision. Generally self-installed constant current micro-coulometer, micro-ampere table commonly used electrolysis current, with stopwatch or electric stopwatch, mechanical counter, etc. manually or automatically record the electrolysis time. According to Coulomb’s law, calculate the amount of material to be analyzed. Inaccurate timing in the analysis is one of the main sources of analysis error. In order to improve the analysis accuracy, the “Casio EL-8131” small calculator was made through a simple modification