| 单片机测频系统频率测量范围的扩展 |
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| 引用本文： | 许军,李根乾.单片机测频系统频率测量范围的扩展[J].西安科技大学学报,1998(4). |
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| 作者姓名： | 许军 李根乾 |
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| 作者单位： | 西安矿业学院自动化系!西安，710054(许军)，西安交通大学激光与红外研究所!西安，710049(李根乾) |
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| 摘 要： | 常规的8031单片机测频系统频率测量范围小子500kHz，本文设计一种扩展电路，将单片机测频系统频率测量范围扩展到100MHz。该扩展电路结构简单，测量范围宽，精度高，具有实用价值。
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| 关 键 词： | 频率测量 单片机 相对误差 |
RANGE EXPANSION OF SINGLE-CHIP MICROPROCESSOR FREQUENCY MEASUREMENT SYSTEM |
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| Xu Jun,Li Genqian.RANGE EXPANSION OF SINGLE-CHIP MICROPROCESSOR FREQUENCY MEASUREMENT SYSTEM[J].JOurnal of XI’an University of Science and Technology,1998(4). |
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| Authors: | Xu Jun Li Genqian |
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| Abstract: | Range of 8031 frequency measurement is usually less than 500 kHz. An expansion method is presented, and the range will be increased up to 100 MHz. The system is practical because of its merits of simple circuit structure, wide measurement range and high accuracy. |
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| Keywords: | frequency measurement microprocessor relative errors |
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