Research on the Method of Frequency Measurement Based on Pulse Width Measurement

DOI

10.2991/snce-18.2018.61How to use a DOI?

Keywords

Frequency measurement; Positive pulse width; Duty cycle

Abstract

In engineering design and experiment, the frequency of square wave is often measured. At present, the commonly used method is the "time sluice" method, which is to measure the frequency of square wave by measuring the jump times of the rising or descending edge of the square wave in 1s. But if the frequency of the square wave is high enough, the processor is required to be fast enough. The high frequency signal is prone to error, so the precision is not high. In order to improve the accuracy, we can use the "pulse width" method to measure the frequency, that is to measure the width of the positive pulse width, and then calculate the frequency according to duty cycle. This method has high accuracy and short measurement time and high efficiency.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jian Huang
PY  - 2018/05
DA  - 2018/05
TI  - Research on the Method of Frequency Measurement Based on Pulse Width Measurement
BT  - Proceedings of the 8th International Conference on Social Network, Communication and Education (SNCE 2018)
PB  - Atlantis Press
SP  - 309
EP  - 311
SN  - 2352-538X
UR  - https://doi.org/10.2991/snce-18.2018.61
DO  - 10.2991/snce-18.2018.61
ID  - Huang2018/05
ER  -