| MC9S12DG128单片机在频率测量系统中的应用 |
| |
| 引用本文： | 杜慧勇,谢春华,王站成.MC9S12DG128单片机在频率测量系统中的应用[J].河南科技大学学报(自然科学版),2009,30(3). |
| |
| 作者姓名： | 杜慧勇 谢春华 王站成 |
| |
| 作者单位： | 河南科技大学,车辆与动力工程学院,河南,洛阳,471003 |
| |
| 基金项目： | 河南省教育厅自然科学基础研究基金 |
| |
| 摘 要： | 分析了几种常用频率测量方法(测频法、测周法和多周期同步法)的测量原理和测量误差,对其优缺点进行了比较,提出了一种实用的测频+测周求平均的方法,并分析了该方法在MC9S12DG128单片机频率测量系统中测量转换的临界点和相对误差,给出了具体的测量方法和实现流程,并利用MC9S12DG128单片机运算速度快,机器周期小等优点,从而实现了该系统的测量精度高、自适应性强、测量量程宽、电路结构简单的特点.
|
| 关 键 词： | 单片机 频率 测量 |
Application of MC9S12DG128 Microcontroller to Frequency Measuring System |
| |
| DU Hui-Yong,XIE Chun-Hua,WANG Zhan-Cheng.Application of MC9S12DG128 Microcontroller to Frequency Measuring System[J].Journal of Henan University of Science & Technology:Natural Science,2009,30(3). |
| |
| Authors: | DU Hui-Yong XIE Chun-Hua WANG Zhan-Cheng |
| |
| Institution: | Vehicle & Motive Power Engineering College;Henan University of Science & Technology;Luoyang 471003;China |
| |
| Abstract: | The measuring principles and measuring error of three frequency measuring methods (frequency measuring method,period measuring method,and multi-period synchronize method) were analyzed in this paper.An integration method of frequency and period was presented,the switch point of measuring method and relative error of this frequency measuring system were analyzed.This method makes use of the high calculation speed of MC9S12DG128 microcontroller to realize high measuring precision, strong adapting ability,wide... |
| |
| Keywords: | Microcontroller Frequency Measurement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
