论文部分内容阅读
310 3/ 310 4微侧向测井仪属于进口 370 0系列的聚焦式电阻率测井仪器的一种 ,采用恒压式工作方式 ,利用负反馈实现屏蔽电极的电压恒定。以前的文献资料只对此电路的工作原理进行定性的分析 ,这种定性的分析 ,目前已无法满足实际工作的需要。文中利用反馈理论 ,对微侧向恒压供电电路进行了理论计算和分析 ,并且介绍了在实际工作中的应用
310 3/310 4 Micro-lateral logging instrument belongs to imported 370 0 series focusing resistivity logging instrument. It adopts constant voltage working mode and uses negative feedback to realize the constant voltage of shielding electrode. The previous literature only qualitative analysis of the working principle of this circuit, this qualitative analysis, the current can no longer meet the needs of the actual work. In the paper, feedback theory is used to theoretically calculate and analyze the micro-side constant voltage power supply circuit, and the application in practical work is introduced