电潜泵测试仪的电流信号发生器设计  

Design of current generator of electric submersible pump tester

作　　者：叶欣[1] 李婷兰[1] 徐晶晶[1] 刘军宁[2] 

机构地区：[1]光电油气测井与检测教育部重点实验室西安石油大学,710065 [2]大庆钻探工程公司地质录井一公司,大庆163411

出　　处：《电子测试》2013年第1期75-78,共4页Electronic Test

基　　金：陕西省教育厅资助项目(2010JK781)

摘　　要：根据电潜泵测试仪的需要,提出一种基于TLV5637数模转换器的电流信号发生器电路设计方法。采用AT89C51模拟SPI通信访问TLV5637,将仪器采集到的数字信号转换为模拟电压信号,再通过电流环电路把模拟电压信号转化成电流信号。详细描述了硬件和软件的具体实现方案,其中包括微控制器与D/A转换器的接口连接与通信,电流环电路和软件基本代码。经过多次实验,结果表明该电流信号发生器能够准确产生所需的电流信号,完全满足仪器的要求并具有很高的精度和通用性。Based on the need of electric submersible pump tester, the paper designs one measure of current signal generator circuit based on TLV5637 digital-to-analog converter. Use AT89C51 simulated SPI communication visit TLV5673,acquisition of the instrument converts the digital signals to analog voltage signal, then transforms analog voltage signal into a current signal through the current loop circuit. This paper describe the program of hardware and software,include the port and connection between MCU and DAC, current loop circuit and basic software program. After several experiments show that the current signal generator should be able to accurately produce the desired current signal,and fully meet the requirements and have a high degree of accuracy and versatility.

关 键 词：TLV5637 AT89C51 电流环电路 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] TN792[自动化与计算机技术—计算机科学与技术]