基于CPLD的多通道高速高精度数据采集控制器设计及应用  

Design and Application of High Speed and High Accuracy Multi-channel Data Acquisition Controller Based on Complex Programmable Logic Device

作　　者：卢俊强[1] 鞠晓东[1] 成向阳[1] 秦玉坤 

机构地区：[1]中国石油大学资源与信息学院,北京102249 [2]中国石油集团测井有限公司华北事业部,河北任丘065007

出　　处：《测井技术》2006年第5期465-466,共2页Well Logging Technology

基　　金：国家自然科学基金项目(40374049;40574049);国家自然科学基金重点项目(10534040);中国石油天然气集团公司科学研究与技术开发重点项目(03B30107)

摘　　要：设计了一种基于CPLD的数据采集控制器,并将其应用于井下高性能声波测井仪数据采集系统的设计。采集深度、速率等参数可由地面或井下控制单元动态设置,采集控制器与系统控制单元之间的通信通过串行命令总线和高速串行数据总线实现,节省仪器主控制器模块的资源,简化仪器模块之间的连线,减小干扰,提高了仪器的可靠性。A data acquisition controller based on Complex Programmable Logic Device is designed and implemented in a data acquisition system of high performance downhole acoustic logging tools. Parameters such as acquisition depths, acquisition rates, etc, are set dynamically by surface or downhole control unit. Communication between acquisition controller and system control unit is realized through serial command bus and high speed serial data bus. This design saves resources for the main controller, simplifies the interconnections among modules, reduces interference, and improves system reliability.

关 键 词：声波测井 数据采集 采集控制器 CPLD 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]