钻杆声波传输对可调脉宽驱动的敏感性研究  

Study on Sensitivity of Drill Pipe Sound Wave Transmission to the Adjustable Pulse Width Driving

作　　者：高理[1] 程为彬[1] 满荣娟 李杰[1] 

机构地区：[1]西安石油大学电子工程学院,陕西西安710065

出　　处：《西安石油大学学报（自然科学版）》2016年第6期104-107,共4页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金项目(编号:61174191);陕西省工业攻关计划(编号:2013K07-14);西安市科技计划项目"井下短距离无线数据传输技术开发"(编号:CX12601)

摘　　要：设计了一种占空比可调的激振器驱动电路,并对短距离钻杆进行声波传输试验,研究占空比可调的脉冲驱动信号对单钻杆声波传输特性的影响。脉冲信号频率不同时,调节驱动信号的占空比从10%到90%变化,利用压电传感器接收传输信号。测试数据分析表明：所设计的电路可以输出占空比任意调节的驱动信号,且占空比在20%-30%时钻杆声波信号传输效果较好。A vibration exciter driving circuit with variable duty ratio was designed and its acoustic transmission experiment of short drill pipe was finished to study the effect of the pulse drive signal with variable duty ratio on the single drill pipe acoustic transmission char- acteristics. When the frequency of pulse is different,the duty ratio of the pulse signal is changed from 10% to 90% ,and the transmis- sion signal is received by the piezoelectric sensor. The analysis of test data shows that the designed circuit can output the driving signal with the variable duty ratio, and the transmission effect of the drill pipe acoustic signal is better when the duty ratio is in the range of 20% - 30%.

关 键 词：声波传输 钻杆 脉冲波 占空比 

分 类 号：TE921[石油与天然气工程—石油机械设备]