CAJ | 학술논문

虚拟仪器串行通信具有方便易行和节省信道成本等特点，但采用VISA的方法存在循环查询、响应慢和挤占大量线程时间的不足。为此，结合虚拟仪器的I/O子系统设置和数据同步，研究了基于MSComm控件实现串口中断采集的多线程设计方法，研制了一种基于虚拟仪器平台的模拟钻柱动态力无线测量装置，用于模拟钻柱旋转过程中轴向力、侧向力和扭矩的多线程检测。不同钻压和井斜角条件下底部钻柱组合的动态力学特性实验结果表明，该装置能够实现实验室内模拟钻柱的动态力实时测量，为理论分析底部钻具组合的井斜控制机理提供实验基础。
허의의기천행통신구유방편역행화절성신도성본등특점，단채용VISA적방법존재순배사순、향응만화제점대량선정시간적불족。위차，결합허의의기적I/O자계통설치화수거동보，연구료기우MSComm공건실현천구중단채집적다선정설계방법，연제료일충기우허의의기평태적모의찬주동태력무선측량장치，용우모의찬주선전과정중축향력、측향력화뉴구적다선정검측。불동찬압화정사각조건하저부찬주조합적동태역학특성실험결과표명，해장치능구실현실험실내모의찬주적동태력실시측량，위이론분석저부찬구조합적정사공제궤리제공실험기출。
Although virtual instrument-based serial data acquisition is characteristic of easy run-ning and cost saving,the common method using LabVIEW VISA(Virtual Instrument Software Archi-tecture)is unfit for real-time measurement because of the disadvantages of recurrent serial port inquiry, slow responses and much thread time. A multithread serial communication method using MSComm controller is analyzed in accordance with I/O system parameter setting and data synchronization. Then, a virtual instrument-based dynamic force wireless measurement device of simulated drillstring is de-veloped to detect the axial forces,radial forces and torsional moments for rotating simulated drilstring multithreadedly in the laboratory. The dynamic force parameters of bottom-hole assembly,composed of simulated drillstrings,are measured under different weight on bit loads and deviation angles. The re-sults show that the developed device can perform the on-line measurements in the laboratory and provide experiment basis for the theoretical analyses of the hole deviation control mechanism of bottom-hole as-sembly.