Design of Handheld Oscilloscope Based on FPGA and Dual A/D

DOI

10.2991/iceeecs-16.2016.213How to use a DOI?

Keywords

Handheld oscilloscope, Field-Programmable Gate Array, STM32, Double Anolog-to-Digital sampling,Sampling frequency

Abstract

Handheld oscilloscope because of its portability, wide application range and other characteristics, has drawn more and more attention in the engineering practice. Anolog-to-digital conversion circuit plays an important role in the design of digital oscilloscope. It directly determines the maximum frequency of digital oscilloscope can be measured. This paper focuses on the analysis of three methods of improving the sampling rate, eventually adopts double anolog-to-digital converter sampling approach to the design of a handheld oscilloscope, sampling frequency can reach two times the maximum sampling frequency of anolog-to-digital converter, so as to improve the accuracy of frequency measurement range of oscilloscope and the waveform display, and without significant increase in cost and easy to realize. The oscilloscope with embedded processor STM32 as control core, using Field-Programmable Gate Array (FPGA) for data processing. The signal collected by automatic gain control, dual anolog-digital converter sampling,data cache, digital-to-anolog conversion process, displayed on the screen. At the same time ,the oscilloscope realizes the functions of test signal's display, measurement and the corresponding parameter adjustment. Copyright ¸ 2014 IFSA Publishing, S. L.

Copyright

© 2016, 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/).

Download article (PDF)

TY  - CONF
AU  - Hu Yang
AU  - Yuduo Wang
PY  - 2016/12
DA  - 2016/12
TI  - Design of Handheld Oscilloscope Based on FPGA and Dual A/D
BT  - Proceedings of the 2016 4th International Conference on Electrical & Electronics Engineering and Computer Science (ICEEECS 2016)
PB  - Atlantis Press
SP  - 1111
EP  - 1117
SN  - 2352-538X
UR  - https://doi.org/10.2991/iceeecs-16.2016.213
DO  - 10.2991/iceeecs-16.2016.213
ID  - Yang2016/12
ER  -