| 高频动态校准系统的自校准模板设计方法研究 |
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| 引用本文： | 刘博洋,张训文.高频动态校准系统的自校准模板设计方法研究[J].测试技术学报,2010,24(6). |
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| 作者姓名： | 刘博洋 张训文 |
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| 作者单位： | 1. 国家知识产权局专利审查协作中心,北京,100190
2. 北京理工大学,宇航学院,北京,100081 |
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| 摘 要： | 本文对数据采集系统的内装式自校准模板的设计、开发进行了研究.自校准模板采用ARM9和高速、高准确度DAC发生动态校准信号,高稳定度电压基准发生静态校准信号.模板上的高精密12档衰减器实现了对信号幅值的设置,可程控8档截频滤波器根据动态校准信号的频率对DAC产生的动态模拟信号进行滤波.论述了自校准模板静态电压基准电路、衰减器及数模转换电路的设计.采用ARM9和C语言开发了完善的通信模块、参数设置模块、功能实现模块及上位机与模板的通信协议模块等.通过设计、制作和调试,实现了幅值满度为+10V及频率为100 kHz动态校准信号的发生.
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| 关 键 词： | 自校准 数模转换器(DAC) 动态校准 电压基准 滤波器 |
Research on Design Method for Self-Calibration Template of High-Frequency Dynamic Calibration System |
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| LIU Boyang,ZHANG Xunwen.Research on Design Method for Self-Calibration Template of High-Frequency Dynamic Calibration System[J].Journal of Test and Measurement Techol,2010,24(6). |
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| Authors: | LIU Boyang ZHANG Xunwen |
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| Affiliation: | LIU Boyang1,ZHANG Xunwen2(1.Patent Examination Cooperation Center of SIPO,Beijing 100190,China2.School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | The study focuses on the design and development of built-in self-detection and self-calibration template for data acquisition system.ARM9 and high-speed high-precision DAC are adopted to generate a dynamic calibration signal.High-stabilization voltage reference is used to generate a static calibration signal.Twelve-level high-precision attenuator is used to control the signal range.A programmable 8-level cut-off frequency filter can be controlled to filter dynamic analog signal generated by DAC based on the... |
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| Keywords: | self-calibration DAC dynamic calibration voltage reference filter |
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