|Table of Contents|

Synchronous acquisition system for thehigh resolution fluxgate sensor(PDF)


Research Field:
Publishing date:


Synchronous acquisition system for thehigh resolution fluxgate sensor
Li QingJia YunfeiHe Chenyu
School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
data acquisition system field programmable gate array parallel sampling digital filtering
Aiming at the synchronization and high precision requirements of the data acquisition system in an unexploded ordnance detection,a multi-channel synchronous data acquisition system which is fit for magnetic detection equipment is designed. The system is built according to the modular idea,its structure is simple,its scalability is strong and its cost is very low. In this system,the parallel operation of field programmable gate array(FPGA)and the structural optimization confirms the instruction’s synchronization. The 32-bits analog to digital converter(ADC)which has the highest resolution at present,digital filter and chopping zero technology make the accuracy requirements satisatory. The prototype test results show that the signal measurement range can reach up to ±5 V and the noise is lower than 5 μV. Compared with the 24-bits capture card which is commonly used,this system accuracy is more than doubled. The design is more suitable for the field of unexploded ordnance detection.


[1] 刘伟. 航空瞬变电磁法探测地下隐蔽洞体的前景浅析[J]. 兵器装备工程学报,2017,38(6):169-175.
Liu Wei. Prospection for airborne TEM systems to prospecting shelter caves in the subsurface[J]. Journal of Weapon Equipment Engineering,2017,38(6):169-175.
[2]Wiegert R F. Magnetic STAR technology for real-time localization and classification of unexploded ordnance and buried mines[J]. Proceedings of SPIE-The International Society for Optical Engineering,2009. DOI:10.1117/12.818288.
[3]胡锐,薛晓中,孙瑞胜,等. 基于DSP+FPGA的高动态GPS信号载波环路设计[J]. 南京理工大学学报,2010,34(1):75-79.
Hu Rui,Xue Xiaozhong,Sun Ruisheng,et al. Carrier loop design for high-dynamic GPS signal based on DSP+FPGA[J]. Journal of Nanjing University of Science and Technology,2010,34(1):75-79.
[4]陈源林,孙尚民,许西宁. 基于FPGA和STM32的多通道超声信号同步采集系统设计[J]. 电子测量技术,2017,40(11):142-147.
Chen Yuanlin,Sun Shangmin,Xu Xining. Design of multi-channel ultrasonic signal synchronous acquisition system based on FPGA and STM32[J]. Electronic Measurement Technology,2017,40(11):142-147.
[5]Abdallah M A S. Reconfigurable stand-alone multi-channel data acquisition,archiving,monitoring and processing system using FPGA-SOPC technology with heterogeneous maximal service scheduling[D]. Cookeville,USA,Tennessee Technological Univer-sity,2010.
[6]严超,陈儒军,申瑞杰,等. 分布式多通道电法电磁法数据同步采集系统[J/OL]. 地球物理学进展:1-10[2019-04-18]. http://kns. cnki. net/kcms/detail/11. 2982. P. 20180725. 1141. 074. html.
Yan Chao,Chen Rujun,Shen Ruijie,et al. Distributed multi-channel data acquisition system for electrical and electromagnetic methods[J/OL]. Progress in Geophysics:1-10[2019-04-18]. http://kns. cnki. net/kcms/detail/11. 2982. P. 20180725. 1141. 074. html.
[7]居水荣,魏天尧,朱樟明. 超低功耗逐次逼近寄存器型模数转换器的设计[J]. 半导体技术,2015,40(3):174-181.
Ju Shuirong,Wei Tianyao,Zhu Zhangming. Design of ultra low power SAR ADC[J]. Semiconductor Technology,2015,40(3):174-181.
[8]Tabassum F,Islam M I,Amin M R. Comparison of filter banks of DWT in recovery of image using one dimensional signal vector[J]. Journal of King Saud University-Computer and Information Sciences,2019. DOI:10.1016/j.jksuci.2019.03.005.
[9]林天衣,李武森,陈文建,等. 基于ADA2200的开关电容微位移传感器信号处理电路研究[J]. 南京理工大学学报,2018,42(6):693-699.
Lin Tianyi,Li Wusen,Chen Wenjian,et al. Signal processing circuit based on ADA2200 in switch-capacitance micro-displacement sensor[J]. Journal of Nanjing University of Science and Technology,2018,42(6):693-699.
[10]宋亮. 基于FPGA的多通道同步数据采集系统设计[D]. 沈阳:辽宁科技大学,2016.
[11]姜海洋,秦丽,李杰,等. 基于FPGA的弹姿测试数字陀螺仪关键技术研究[J]. 兵器装备工程学报,2019,40(6):77-81.
Jiang Haiyang,Qin Li,Li Jie,et al. Research on key technology of digital gyroscope for projectile flight attitude test on FPGA[J]. Journal of Weapon Equipment Engineering,2019,40(6):77-81.


Last Update: 2020-02-29