一、前言由于电刷镀这项新技术具有设备简单、工艺灵活、沉积速度快、镀层与基体结合强度高、适应范围广、环境污染少等一系列优点,因而在我国已得到迅速推广应用。但目前投放市场的电刷镀电源,由于与其相配合使用的安培小时计,一般都由集成度不太高的电子元件,按计数、译码、驱动、显示等几部分功能电路组成。这就使得电路复杂,成本高,售价大多在千元以上。由于价格偏高,对于中、小企业迅速推广应用这项新技术有较大影响。为此,我们研制了一种简便的安培小时计。这种安培小时计从计数到显示,是用一个普通的袖珍电子计算器来代替,其成本仅为百余元。用它与普 I. Preface As a new technology of brush plating, this new technology has a series of advantages such as simple equipment, flexible process, fast deposition, high bonding strength between coating and matrix, wide range of application and less environmental pollution. Therefore, it has been rapidly popularized and applied in our country. But currently on the market of brush plating power supply, due to its use with the Ampere hour meter, usually by the integration of electronic components is not too high, according to count, decode, drive, display and other parts of the functional circuit. This makes the circuit complex, high cost, the price is mostly in the thousand or more. Due to the high price, the rapid promotion and application of this new technology for SMEs have a greater impact. To this end, we developed a simple ampere hour meter. The ampere hour meter from counting to display, is replaced by a common pocket calculator, the cost of only a hundred dollars. Use it with Pu