【作者】 潘良明；

【导师】 贾叔仕； 何闻；

【作者基本信息】 浙江大学 ， 机械制造及其自动化， 2006， 硕士

【摘要】 本文在分析了振动校准的重要性和国内外振动校准研究、发展现状基础上，结合实际的工程项目，对振动校准装置测控系统进行了开发与研究。 第一章阐述了振动传感器校准的意义，介绍了校准内容和校准方法、国内外振动校准的发展概况和发展方向。最后明确了论文研究的内容和所要达到的目标。 第二章分析了电磁振动台的动态特性。首先分析了电磁振动台的工作原理和结构，在此基础上，对振动台在低频和高频激振下的恒压激励和恒流激励频率特性进行了分析与研究。 第三章研究了振动校准控制系统的技术问题。首先对振动校准装置测控系统的组成进行说明；分析与研究了控制算法，最终设计采用逐次逼近控制算法；对基于IEEE-488接口的程控仪器的通信、数据采集和传输的研究；振动校准中定频、多频、线性和扫频控制的分析与研究。 第四章分析了系统不确定度和数据处理技术。对校准系统不确定度进行了分析计算，根据合成标准不确定度和扩展不确定度理论计算出系统的扩展不确定度；在数据处理技术方面进行了研究，分析研究了适合本系统的数据处理方法，对于过失误差的判断采取肖维勒准则，在减小随机误差方面采取多周期平均法等。 第五章对开发的振动校准系统进行了测试分析。首先对系统中所使用的仪器和振动台系统进行了测试，然后对传感器校准进行了试验。通过测试分析，提出了一些改进措施。整个校准系统达到了预期的目标。 第六章对课题的研究作了评价也指出系统存在的不足，同时提出展望。更多还原

【Abstract】 In this dissertation, the significance of vibration calibration and the present research status at home and abroad were introduced. The research on measurement and control system for vibration calibration devices has been done, supported by a project. This dissertation was arranged as follow.In chapter 1, first, the significance of vibration transducer calibration was depicted, and the calibration items and methods were described as well. Second, the present research status of vibration transducer calibration at home and abroad was introduced. Finally, the aims of dissertation and the research content were presented.In chapter 2, based on the analysis of electromagnetic vibration table’s principle of work and structure, two kinds of vibration table’s frequency respond curves were worked out based on voltage feedback and current feedback respectively.In chapter 3, the control system for vibration transducer calibration was analyzed and researched. First, the configuration of the measurement and control system was depicted. Second, the cut and try control algorithm about the table’s vibration level was researched, and the programmable apparatuses, which were installed IEEE-488 interface communication, data acquisition and transfer, were also researched. Finally, the control algorithm of the vibration transducer calibration’s items is analyzed and researched, including fixed-frequency,multi-frequency, linearity and sweep-frequency.In chapter 4, the calibration uncertainty of the vibration transducer and the methods of data processing were studied. The system uncertainty caused by the environment impact and the test apparatuses in the calibration system were deeply researched. And the feasible methods for data processing were applied in the program.In chapter 5, the whole vibration calibration system was tested. First, the apparatuses in the system and the vibration table were tested. Then, a transducer was tested on the system. The system was proved to reach an anticipated goal. Based on the experiment results and the analysis results, some feasible measures were presented.In chapter 6, the conclusion was drawn and the further research work which would be done in the near future was put forward.更多还原