721型分光光度计电子系统简析

721 a spectrophotometer electronic systems brief analysis

本文对721型分光光度计电子系统原理进行了描述,说明了各级电路的结构组成及元器件的作用,介绍了对稳压电源、微电流放大器的检查、维修方法和要求。

Electronic systems principle 721 style spectrophotometer was described, so as to illustrates the structure and the role of the circuit at all levels of electronic components, Introduced stable voltage power, an amplifier of current inspection and maintenance method and requirements.