【摘要】 介绍了高精度程控电流源的工作原理和操作方法。配用双地址只听IEEE-488接口,既可用微机控制,也可面板操作。电流源分6档,输出范围力0.5nA～200mA,精度为±0.05%,最高输出电压为7V,最高输出阻抗为10¹²Ω。更多还原

【Abstract】 The principle and operation of a high-precision programmable current source, which contains a double-address listen-only IEEE-488 interface for remote control purpose, are introduced in this paper. With six output ranges, its output current ranges from 0.5nA to 200mA, and is displayed with a 4 1/2-digit meter. This current source has an output precision of ±0.05% and a maximum output voltage of 7V, and its output resistance can be up to 10¹² Ohm when in the smallest current range.更多还原