| 压磁应力传感器差动信号检测电路设计 |
| |
| 引用本文： | 刘开绪,;段玉波.压磁应力传感器差动信号检测电路设计[J].传感器世界,2014(7):13-16. |
| |
| 作者姓名： | 刘开绪 ;段玉波 |
| |
| 作者单位： | [1]大庆师范学院电气信息工程学院,黑龙江大庆163712; [2] 东北石油大学电气信息工程学院,黑龙江大庆163318 |
| |
| 基金项目： | 大庆师范学院自然科学基金项目资助（项目编号11ZR14） |
| |
| 摘 要： | 由于压磁应力传感器结构对称性存在着差异,致使传感器输出信号的零点值调节困难,而传统的电路输出交流信号,不便于信号处理。采取对两组检测信号先整流滤波,再进行分压式比较,使得输出信号直接为直流信号。利用所设计的电路进行了实验,通过调节电位器即可实现传感器零点值的准确调节。通过实验验证了电路的性能,也验证了磁测应力传感器的性能。
|
| 关 键 词： | 传感器 无损检测 磁致伸缩效应 应力 |
Design of a differential signal detection circuit for piezomagnectic stress sensors |
| |
| Affiliation: | LIU Kai-xu , DUAN Yu-bo(1.Department of Electricity ＆ Information Engineering, Daqing Normal University, Daqing 163712, China;2.Faculty of Electricity and Information Engineering, Northeast Petroleum University, Daqing 163318,China) |
| |
| Abstract: | Due to the structure symmetry differences of piezomagnetic stress sensors, it is difficult to complete zero setting of sensor output signals. Traditional circuits output AC signals, so it is not convenient for signal processing. Two groups of testing signals are rectified and filtered first, then compared, so as the output signals are DC directly. The tests show that the zero setting of sensors can be received accurately by adjusting the potentiometers and the pertbrmance of the circuit and magnetic stress sensor are good. |
| |
| Keywords: | sensor nondestructive testing counter- magnetostrictive effect stress |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
