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Design of New Electronic Single-Yarn Strength Tester Based on ARM
Pages: 66-69
Year: Issue:  1
Journal: Measurement & Control Technology

Keyword:  electronic single-yarn strength testerA/D conversionPetri net;
Abstract: 介绍以ARM芯片AT91 SAM7 S64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.
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