基于ISA总线的氧活化测井地面系统接口电路设计  

Design of ISA-based interface circuit for the ground system of oxygen activation logging

作　　者：李长星[1] 胡振华[1] 王波[1] 

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《现代电子技术》2014年第1期67-69,74,共4页Modern Electronics Technique

基　　金：西安市科技计划项目:石油测井装备及油田数字化建设共性技术研究(③氧活化测井仪地面采集控制系统开发)(CXY1132(3))

摘　　要：针对实际应用的需要,设计了一种基于工业控制ISA总线的地面接口系统。着重介绍氧活化测井仪工作原理、地面系统的硬件接口电路原理;重点研究中子氧活化水流测井仪的地面系统接口设计,通过单片机实现数据与命令间收发及通信协议的解释;采用软硬结合的方法实现PCM编码。接口采用ISA总线设计,该设计应用于地面系统与不同仪器的快速配接,实验证明该系统具有良好的兼容性及高可靠性。To meet the need of practical applications, a ground interface system based on industrial controlled ISA bus is designed. The working principles of the oxygen activation tool and hardware interface circuit of the ground interface system are elaborated. The design of ground system interface of the neutron oxygen activation water flow logger is focused on. The explanation of communication protocol and transceiving of the dates and commands is realized by MCU, and PCM coding is realized by combination of hardware and software. The interface is designed by ISA bus, The design is applied in fast matching of the ground equipment system and different instruments, and has good compatibility and high reliability.

关 键 词：地面系统 氧活化测井 ISA总线 接口 

分 类 号：TN710-34[电子电信—电路与系统] TP334[自动化与计算机技术—计算机系统结构]