基于ARM的新型电子单纱强力机设计  

Design of New Electronic Single-Yarn Strength Tester Based on ARM

作　　者：万军[1,2] 赵不贿[1] 蒋燕蓉[2] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013 [2]常州大学信息科学与工程学院,江苏常州213164

出　　处：《测控技术》2014年第1期66-69,共4页Measurement & Control Technology

基　　金：国家自然科学基金资助项目(61070058);江苏高校优势学科建设工程资助项目(苏政办发[2011]6号)

摘　　要：介绍以ARM芯片AT91SAM7S64为核心构成的新型电子单纱强力机的设计方法。使用AT91SAM7S64内置PWM单元控制步进电机驱动器驱动步进电机实现试样拉伸。选用高精度ADC采集试样的强力数据,内置的定时计数器通道实时记录试样的拉伸长度和断裂时间。为提高强力机测试的性能和可靠性,使用了Petri网对试验流程进行形式化的描述与分析。应用表明,所设计的电子单纱强力机符合GB/T 14344-2008,且具有性能稳定、成本低等优点。The design of new electronic single-yarn strength tester is introduced by using AT91SAMTS64. The PWM unit of AT91 SAM7S64 is used to control the stepper motor driver to realize the stretch of sample. A high precision ADC is adopted to gather the strength data. The inner timer channels record elongation and separation time simultaneously. In order to improve the performance and reliability of the strength tester, Petri net is used for the formal description and analysis of the test process. Applications prove that the tester complies with the GB/T 14344 -2008 and has the characteristics of reliable performance and low cost.

关 键 词：电子单纱强力机 AT91SAM7$64 A D转换 PWM PETRI网 

分 类 号：TP216.1[自动化与计算机技术—检测技术与自动化装置]