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| 基于嵌入式架构的井下高精度模数转换器高温测试系统设计 | |
| 引用本文： | 门百永,鞠晓东,乔文孝,邓林,成向阳,卢俊强.基于嵌入式架构的井下高精度模数转换器高温测试系统设计[J].中国石油大学学报(自然科学版),2011,35(3):67-71. |
| 作者姓名： | 门百永 鞠晓东 乔文孝 邓林 成向阳 卢俊强 |
| 作者单位： | 1. 中国石油大学油气资源与探测国家重点实验室,北京102249;中国石油大学北京市地球探测与信息技术重点实验室,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,062552 3. 中国石油大学石油工程学院,山东,青岛,266555 |
| 基金项目： | 国家自然科学基金面上项目，国家科技重大专项课题 |
| 摘 要： | 采用主从式结构,设计一种井下模数转换器(ADC)高温测试系统.系统主机通过以太网与嵌入式前端机互联.基于ARM7-uClinux架构的前端机主要完成温度控制、供电控制及ADC测试控制等,而后续的数据处理、显示及存储等任务由高性能上位机完成.数字相敏检波算法被成功应用于ADC有效位数的快速实时计算.结果表明,测试系统可以... |
| 关 键 词： | 测井仪器 高温测试 模数转换器 有效位数 嵌入式技术 网络互联 数字相敏检波 |
Design of high temperature test system for high-accurate ADC based on embedded structures |
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| MEN Bai-yong,JU Xiao-dong,QIAO Wen-xiao,DENG Lin,CHENG Xiang-yang,LU Jun-qiang.Design of high temperature test system for high-accurate ADC based on embedded structures[J].Journal of China University of Petroleum,2011,35(3):67-71. | |
| Authors: | MEN Bai-yong JU Xiao-dong QIAO Wen-xiao DENG Lin CHENG Xiang-yang LU Jun-qiang |
| Institution: | 1,2(1.State Key Laboratory of Petroleum Resources and Prospecting in China University of Petroleum,Beijing 102249,China;2.Beijing Earth Explorer and Information Technology Laboratory in China University of Petroleum,Beijing 102249,China;3.Division of Northern China,China Petroleum Logging Company Limited,Renqiu 062552,China;4.College of Petroleum Engineering in China University of Petroleum,Qingdao 266555,China) |
| Abstract: | Based on principal and subordinate structure,high temperature test system for high-accurate analog-to-digital converter(ADC) was designed.The host PC interconnects with embedded front-end via Ethernet.The embedded front-end based on ARM-uClinux structure performs temperature control,power supply control and ADC test control,etc.The subsequent data processing,display and storage tasks are handled by host PC.The results show that digital phase sensitive detection algorithm is successfully applied to real-time calculation of effective number of bits.The system can automatically perform testing of ADCs vertical accuracy,power consumption,loss code and waveform distortion at 175 ℃.It provides important reference for the design,debugging and scale of logging tools. |
| Keywords: | logging tool high temperature test analog-to-digital converter(ADC) effective number of bits embedded technique network connection digital phase sensitive detection |
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