测井仪器常用恒流源的应用分析  

Application analysis of constant current sources commonly used in logging instruments

作　　者：李金来 贾健 雍建兴 董斌 杨智刚 万希成 Li Jinlai;JiaJian;YongJianxing;DongBin;YangZhigang;WanXicheng

机构地区：[1]中油测井物质装备公司

出　　处：《国外测井技术》2024年第5期43-47,M0002,共6页World Well Logging Technology

摘　　要：恒流源是能够向负载提供恒定电流的电源,在测井仪器中,恒流源为测井仪器的各种传感器提供稳定的电源输入,确保了测井仪器测量的质量。通过对典型的晶体管恒流源、场效应管恒流源、集成运放恒流源分析,理解其各自应用特点,能够更好的提升仪器维修效率,提高电路分析设计能力,优化测井仪器恒流源的电路结构,提高仪器测量的稳定性和准确性。Constant current source is a power supply that can provide a constant current to the load.In the logging instrument,the constant current source provides stable power input for various sensors of the logging instrument,ensuring the quality of the logging instrument.Through the analysis of the typical transistor constant current source,field effect tube constant current source and integrated transport and discharge constant flow source,understand their respective application characteristics,which can better improve the maintenance efficiency of the instrument,improve the circuit analysis and design ability,optimize the circuit structure of the logging instrument constant current source,and improve the stability and accuracy of the instrument measurement.

关 键 词：测井仪器 恒流源 电路分析 

分 类 号：TM9[电气工程—电力电子与电力传动]