双发三收声波变密度测井仪地面接口电路设计

根据双发三收声波变密度测井仪工作原理及结构特点 ,结合微型计算机技术和高速采集处理技术 ,运用微型计算机总线控制、单片机、A/D转换等技术 ,设计了处理单芯遥测时序信号的地面接口电路。该电路能对深度信号、磁记号信号、声波信号、伽马信号及CCL信号等进行采集处理 ,在相关的测井实时处理软件的支持下完成测井任务 ,应用方便。文章介绍了双发三收变密度测井仪的结构原理 ,阐述了地面接口电路的设计

Development of the interface circuit for a two-transmitter three-receiver variable density logging tool

This paper discusses development of surface interface circuit for processing time sequential signals from monoconductor telemetry. The design is based on AT two-transmitter three-receiver variable density logging tool and uses some development in PC and high-speed acquisition and processing including PC bus control, single chip computer and A/D conversion etc. This newly designed interface is used for acquisition of signals of depth, magnetic marks, sonic, GR and CCL. The interface makes it convenient to complete logging task with support from real-time processing software.