摘要：拉力采集能通过多种方式实现，通常，最众所周知的拉力测量装置和系统是拉力试验机。拉力试验机是通过拉伸试验达到检测材料、零部件、构件等的各力学性能的基础试验装置。同时具有自动计算各参数，自动统计结果，自动记录最大点、断裂点、指定点的力值或伸长量的功能。它广泛应用于质量检测、计量测试及实验研究，应用领域涉各行各业，成为了工农业生产、生活及国防建设不可或缺的重要基础性试验测试设备。22131
本课题通过拉力试验机原理作为研究依据实现拉力数据的采集，设计一个硬件电路系统，针对不同情况选取合适的传感器及相应的测量电路；同时对搭建的单片机系统进行编程，利用单片机完成数据采集，并通过串行口或USB转串口将数据传送至上位机，由上位机完成对数据的进一步分析与处理。设计同时需考虑本系统的完善改造，提出实用性强、运用面广、成本低、功能基本齐全的方案，并加以实施；使系统更切合本课题的设计理念。
在完善改造工作中，需从使用的实际角度出发，兼顾改造成本，针对拉力试验机的系统改造设计了传感器单元、应变信号调理单元、AD转换单元、单片机数据采集与控制单元。本系统以89C-51系列单片机和计算机技术为基本核心，利用现代控制技术和串行通信技术等完成了拉力采集系统的设计。以电阻应变片传感器、单片机、A／D转换器、CH341A的USB转串接口等硬件构成了整套的控制系统，实现拉力采集。
毕业论文关键词：拉力试验机、单片机、A/D转换器、传感器
Tensile Testing System Design
Abstract: There are many ways to get the Pull to collection. Almost the well-known tension measuring device and the system is a tensile testing machine. Tensile testing machine is a basic test device which is achieved the mechanical properties through tensile test. Also, it has functions on calculation parameters, statistics, recording the tension of max points and breaking point. All of these are automatic. It is widely used in quality inspection, measurement and test research, applications for all walks of life, become the indispensable important industrial and agricultural production, living and national defense construction basic test equipment.
The topic through the tensile testing machine principle as the research on the basis of data collection to Design a hardware circuit system in order to Select the appropriate for each sensor and the corresponding measurement circuit. At the same time to programming of single chip microcomputer system, Using single chip microcomputer to complete data collection And through the serial port to transfer data first place machine, By the upper machine to complete further analysis and processing of data. Tensile testing machine is completed with the upgrading of the modern, practical and applicable to a wide range of effective reform, low-cost and improved functionality，to make it familiar with the design concept of the topic.
Upon completion of the renovation work, need from the view of the actual use Both renovation costs In view of the tensile testing machine system design the Sensor actuator element, Strain signal disposal unit, AD conversion unit, the single-chip microcomputer data acquisition and control unit. These systems use the 89C-51Single chip microcomputer and Computer technology to be the basic core. Using the modern control technology and Serial communication technology to finish the design of acquisition system. With resistance strain gauge sensor, Single chip microcomputer, High precision A/D converter, RS232 converter to build the whole control system. to realize the tensile acquisition.
Key words: Tensile testing machine, Single chip microcomputer, A/D converter,The sensor
目录
摘要    I
Abstract    II 51单片机拉力采集系统设计:http://www.youerw.com/zidonghua/lunwen_14634.html