稳流源与地电阻率观测系统可靠性的关联  

Effect of Regulated Current Supply on the Reliability of Apparent Resistivity Measuring System

作　　者：谭大诚[1] 杜学彬[1] 马占虎[1] 陈军营[1] 

机构地区：[1]中国地震局分析预报中心兰州科技创新基地,兰州730000

出　　处：《地震研究》2005年第2期202-206,共5页Journal of Seismological Research

基　　金：国家自然科学基金项目(40474027)资助.

摘　　要：研究了稳流源对地电阻率观测系统可靠性的影响,从理论上分析了稳流源输出电流的稳定性与系统测量数据可靠性之间的联系;从技术上分析了用于稳流源的高频开关技术和多种可靠性技术对观测系统长期可靠的重要性。理论分析阐述了稳流源输出电流稳定的意义,新技术的采用促进了地电观测系统设计技术的提高。In this paper we studied the reliability of apparent resistivity measuring system associated with the current supply, theoretically analyzed the effect of varying output of current supply on the system data reality, and suggested the design plans of regulated current instrument of apparent resistivity using high frequency switching technology and some reliable technology. The theoretic analysis shows the importance of constant output of regulated current supply. And the application of new technology can improve the reliability of the system.

关 键 词：稳流源 地电阻率 观测系统 可靠性 高频开关技术 

分 类 号：P315.7[天文地球—地震学]