Design of Infrared Spectrum Signal Acquisition System Based on FPGA

Journal of Atmospheric and Environmental Optics ›› 2016, Vol. 11 ›› Issue (4): 313-320.

• 论文 • Previous Articles

Design of Infrared Spectrum Signal Acquisition System Based on FPGA

LI Liang, FANG Yonghua, ZHAO Yandong, YANG Min

(Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 23003, China)

Received:2015-04-01 Revised:2015-04-15 Online:2016-07-28 Published:2016-07-15

Abstract

Abstract:

An acquisition system of infrared spectrum signal based on field-programmable aate array (FPGA) is introduced. It is designed to implement data acquisition of 64-channel infrared spectrum signal. Altera’s EP2C35 family chip is used as the control unit to realize the analog multiplexers switching, A/D conversion, data access. For weak DC signal of infrared spectrometer, a signal conditioning circuit is designed to restrain noise. Finally, the data is transmitted to upper computer by serial port. A brief introduction is given about every sub modules. By testing, the system has been validated to be reliability, which can detect minimal 0.23 μV weak DC signal and the actual signal to noise ratio can reach 45 dB.

Key words: field-programmable gate array, infrared spectrum, signal acquisition, analog multiplexers

CLC Number:

TN919

LI Liang, FANG Yong-Hua, ZHAO Yan-Dong, YANG Min. Design of Infrared Spectrum Signal Acquisition System Based on FPGA[J]. Journal of Atmospheric and Environmental Optics, 2016, 11(4): 313-320.

References

[1] Zhuo Haoze, Gong Renxi, Xie Lingling. Design of multi-channels high-speed data acquisition system based on FPGA [J]. Electrical Measurement & Instrumentation, 2011, 48(9): 65-68(in Chinese).
卓浩泽, 龚仁喜, 谢玲玲. 基于FPGA 的多路高速数据采集系统的设计 [J]. 电测与仪表, 2011, 48(9): 65-68.
[2] Liu Zhuofu, Peng Xiafu, Li Fuyi. Application of FPGA in the high-speed multi-channel data sampling system [J]. Electrical Measurement & Instrumentation, 2002, 39(10): 42-44(in Chinese).
刘卓夫, 彭侠夫, 李福义. FPGA在高速多通道数据采集中的应用 [J]. 电测与仪表, 2002, 39(10): 42-44.
[3] Zhang Jianqi, Fang Xiaoping. Infrared Physics [M]. Xi’an: Xidian University Press, 2004: 25-34(in Chinese).
张建奇, 方小平. 红外物理 [M]. 西安: 西安电子科技大学出版社, 2004: 25-34.
[4] Ensaka Junaki. Measurement of Electronic Circuit [M]. Translated by Peng Jun. Bejing: Science Press, 2006: 2-3, 61-65(in Chinese).
远坂俊昭. 测量电子电路设计—模拟篇 [M]. 彭军, 译. 北京: 科学出版社, 2006: 2-3, 61-65.
[5] Gao Jinzhan. Weak Signal Detection [M]. Beijing: Tsinghua University Press, 2008: 40-98(in Chinese).
高晋占. 微弱信号检测 [M]. 北京: 清华大学出版社, 2008: 40-98.
[6] Zhang Jin. The Conditioning Technology of Analog Signal [M]. Bejing: Electronics Industry Press, 2012: 241-251(in Chinese).
张金. 模拟信号调理技术 [M]. 北京: 电子工业出版社, 2012: 241-251.
[7] AD7685DataSheet [DB/OL]. http://www.analog .com/static/imported-files/data_sheets/AD7685.pdf.
[8] Yang Yu. The design of high speed DAQ [J]. Microcomputer Information, 2005, 21(10-1): 108-120(in Chinese).
杨钰. 一种高速同步数据采集系统的设计与实现 [J]. 微计算机信息, 2005, 21(10-1): 108-120.

Design of Infrared Spectrum Signal Acquisition System Based on FPGA

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	WANG Yanbing, LIU Yirong∗. Theoretical Study on Mechanism of Nucleation of Phthalic Acid and Sulfuric Acid [J]. Journal of Atmospheric and Environmental Optics, 2020, 15(5): 372-379.
[2]	MA Hong-Liang, SUN Ming-Guo, WU Xi-Heng, WANG Zhen-Dong, CAO Zhen-Song. Research Progress of Water Vapour Continuum in the Infrared Spectral Regions [J]. Journal of Atmospheric and Environmental Optics, 2018, 13(5): 342-354.