同轴相位法找水仪混频器的耐温电路设计研究  

Frequency mixer heat-resistant circuit of the coaxial phase method for water detection instrument design and research

作　　者：刘翠玲[1] 姜旭[1] 王进旗[2] 秦彬彬 

机构地区：[1]北京工商大学计算机与信息工程学院,北京100048 [2]东北石油大学地球科学学院,大庆163318

出　　处：《电子测量技术》2015年第5期11-13,共3页Electronic Measurement Technology

摘　　要：井下环境复杂多变,高温高压环境对于各种仪器的性能指标有着非常重要的影响。同轴相位法找水仪高温电路的研究对于提高仪器耐温性能指标的有着十分重要的意义,根据同轴相位法找水仪的测量原理和井下环境的温度要求和测量电路的总体方案,分析了该仪器的混频器电路,设计并优化了适合同轴相位法找水仪的混频器电路,并且通过温度实验,得到了测量数据,达到了140℃的耐温条件,降低了功耗,消除了温度变化对混频器测量相位产生的影响。As the downhole has complex and changeful environment, high temperature and high pressure environment has a very important influence on various kinds of instrument performance. The research of the coaxial phase method for water detection instrument high temperature circuit to improve the instrument performance has very important significance. According to the measuring principle ,requirement of the environment and the whole project, designed and optimized the frequency mix circuit. Through the temperature experiment has reached the requirement of heat-resistant at 140℃ and reduced the power consumption , eliminated the influence of temperature variation on the mixer measuring phase.

关 键 词：同轴相位法 找水仪 混频器 耐温 含水率 

分 类 号：TN709[电子电信—电路与系统]