基于LabVIEW的脊柱三维运动试验机控制系统研制

发布时间：2018-05-26 21:47

本文选题：生物力学 + 脊柱　；参考：《华南理工大学》2012年硕士论文

【摘要】：脊柱三维运动的研究对正确了解与评估脊柱的损伤及对脊柱的植入物手术等有重要的临床指导意义。由于脊柱运动是三维空间六个自由度的耦合运动，模拟在体脊柱三维运动存在很大的挑战。目前国内外很多实验室都研制了款式各异的脊柱三维运动试验机，尚没有统一的标准和规范。脊柱三维运动试验机经历了从二维到三维，从手动控制到自动控制的发展过程。近年来，随着脊柱外科学的发展，涌现出越来越多的脊柱运动测量方法与工具。根据脊柱的运动特性、生理特点及研究目的，选择符合脊柱运动规律的的脊柱三维运动试验机是非常必要的。本文旨在南方医科大学南方医院脊柱和脊髓损伤研究实验室现有的脊柱三维运动试验机的控制及检测装置等硬件基础上，基于LabVIEW研制了一套脊柱三维运动试验机控制系统，用来产生脊柱的前屈、后伸、侧弯、侧旋运动，实现脊柱六个自由度的运动特点，达到准确和便利的测量目的。本文介绍了脊柱三维运动试验机装置的工作原理及应用范围;设计了基于阿尔泰采集卡、扭矩传感器及力川伺服电机为基础的脊柱三维运动试验机装置，基于LabVIEW开发平台研制了脊柱三维运动装置控制系统;解决了三维运动试验机的扭矩控制及角速率控制，并设置了控制系统的安全范围，达到脊柱三维运动试验机的使用目的。实验结果表明：基于LabVIEW的脊柱三维运动试验机控制系统具有采样速率快，，扭矩控制准确，使用方便，界面简洁，具有可靠性高和易于维护等优点。
[Abstract]:The study of three-dimensional motion of spine has important clinical significance in understanding and evaluating the injury of spine and in the operation of spinal implant. Because the spine motion is a coupling motion of six degrees of freedom in three dimensional space, there is a great challenge in simulating the three dimensional motion of the spine in vivo. At present, many laboratories at home and abroad have developed different types of spine three-dimensional motion testing machine, there is no unified standards and specifications. The three-dimensional motion testing machine of spine has experienced the development from two-dimensional to three-dimensional, from manual control to automatic control. In recent years, with the development of spinal surgery, more and more spinal motion measurement methods and tools have emerged. According to the motion characteristics, physiological characteristics and research objectives of the spine, it is necessary to select a three dimensional spine motion testing machine which accords with the spine motion law. The purpose of this paper is to develop a control system of spine three-dimensional motion testing machine based on LabVIEW based on the existing control and detection device of spine and spinal cord injury research laboratory in Nanfang Hospital of Southern Medical University. It is used to produce flexion, extension, lateral bending and lateral rotation motion of the spine, so as to achieve the motion characteristics of six degrees of freedom of the spine and to achieve accurate and convenient measurement. This paper introduces the working principle and application scope of the spine three-dimensional motion testing machine, and designs the spine three-dimensional motion testing machine device based on Altay acquisition card, torque sensor and Lichuan servo motor. Based on the LabVIEW development platform, the control system of spine three-dimensional motion device is developed, the torque control and angle rate control of three-dimensional motion testing machine are solved, and the safety range of control system is set up to achieve the purpose of using the three-dimensional spine motion testing machine. The experimental results show that the control system based on LabVIEW has the advantages of high sampling rate, accurate torque control, convenient use, simple interface, high reliability and easy maintenance.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R318.0

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