| 转速信号的快速高精度数字测量 |
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| 引用本文： | 谢京琼,施润昌.转速信号的快速高精度数字测量[J].东南大学学报(自然科学版),1988(3). |
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| 作者姓名： | 谢京琼 施润昌 |
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| 作者单位： | 南京工学院自动控制系，浙江大学科仪系 |
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| 摘 要： | 1 引言用数字方法测量转速时一般采用测频法或测周法。所谓测频法,就是用计数器在标准时间(采样时间)内,对转速传感器输出的电脉冲信号进行计数。为了提高测量精度,可以适当增加转速传感器每转输出电脉冲数Z或延长采样时问t。在Z和t一定的条件下,转速愈高,测量精度愈高。所谓测周法,就是用计数器测量
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Measuring Rotational Speed Instantaneously and Accurately by Digital Method |
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| Xie Jingqiong.Measuring Rotational Speed Instantaneously and Accurately by Digital Method[J].Journal of Southeast University(Natural Science Edition),1988(3). |
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| Authors: | Xie Jingqiong |
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| Abstract: | This paper analyses the limitations of frequency-measuring method and period-measuring method when they are used for measuring rotational speed instantaneously in wide range of the speed. A method which is based on time-measuring and applicable to measuring the large range of rotational speed is introduced and analysed. The method with structures of the hardware and software is described with a practical example. |
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| Keywords: | Zhai Yu]ian Meng Zhengda (Department of Automatic Control) |
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