[1]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),1988,18(3):131-135.[doi:10.3969/j.issn.1001-0505.1988.03.016]
 Xie Jingqiong (Department of Automatic Control) Shi Runchang (Department of Scientific Instrument Engineering,Zhejiang University).Measuring Rotational Speed Instantaneously and Accurately by Digital Method[J].Journal of Southeast University (Natural Science Edition),1988,18(3):131-135.[doi:10.3969/j.issn.1001-0505.1988.03.016]
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转速信号的快速高精度数字测量()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
18
期数:
1988年第3期
页码:
131-135
栏目:
本刊信息
出版日期:
1988-05-20

文章信息/Info

Title:
Measuring Rotational Speed Instantaneously and Accurately by Digital Method
作者:
谢京琼施润昌
南京工学院自动控制系; 浙江大学科仪系
Author(s):
Xie Jingqiong (Department of Automatic Control) Shi Runchang (Department of Scientific Instrument Engineering Zhejiang University)
关键词:
Zhai Yu]ian Meng Zhengda (Department of Automatic Control)
Keywords:
Zhai Yu]ian Meng Zhengda (Department of Automatic Control)
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1988.03.016
摘要:
<正> 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
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.
更新日期/Last Update: 2013-04-30