液晶与显示, 2020, 35 (2): 143, 网络出版: 2020-03-26  

一种应用于IEPE传感器数据采集系统的调理电路设计

Design of a conditioning circuit applied to IEPE sensor data acquisition system
作者单位
1 中国民航大学 中欧航空工程师学院, 天津 300300
2 天津航空机电有限公司, 天津 300300
3 陇东学院 电气工程学院, 甘肃 庆阳 745000
摘要
为解决压电集成电路(Integral Electronic Piezoelectric, IEPE) 传感器数据采集系统中采集的输出信号波动较大、不适合直接采集的问题, 设计了一种应用于IEPE传感器数据采集系统的调理电路。在调理电路的设计中运用了微功耗电源电路、低功耗可程控前端信号调理电路以及高精度模数转换电路, 并将FPGA(Field-Programmable Gate Array)运用到整个IEPE传感器数据采集系统设计当中, 增进了其操作的便利性以及工作的稳定性。实验结果显示, IEPE传感器数据采集系统具有更高的数据采集精度以及更低的电功率耗损值, 该数据采集系统具有较强的实践可行性。
Abstract
In order to solve the problem that the output signal collected in the IEPE sensor data acquisition system fluctuates greatly and is not suitable for direct acquisition, a conditioning circuit for IEPE sensor data acquisition system is designed. In the design of conditioning circuit, the micro-power supply circuit, low-power programmable front-end signal conditioning circuit and high-precision analog-to-digital conversion circuit are used, and FPGA is applied to the whole in the design of IEPE sensor data acquisition system, the convenience of operation and the stability of work are enhanced. The test results show that the IEPE sensor data acquisition system has higher data acquisition accuracy and lower electric power loss value. The data acquisition system has strong practical feasibility.
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关静, 全超, 任亚莉. 一种应用于IEPE传感器数据采集系统的调理电路设计[J]. 液晶与显示, 2020, 35(2): 143. GUAN Jing, QUAN Chao, REN Ya-li. Design of a conditioning circuit applied to IEPE sensor data acquisition system[J]. Chinese Journal of Liquid Crystals and Displays, 2020, 35(2): 143.

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