| Y6DL-3型动态电阻应变仪小信号的测量研究 |
| |
| 引用本文： | 张春辉,王时英,李向鹏. Y6DL-3型动态电阻应变仪小信号的测量研究[J]. 仪器仪表用户, 2012, 19(1): 64-67 |
| |
| 作者姓名： | 张春辉 王时英 李向鹏 |
| |
| 作者单位： | 太原理工大学机械工程学院,太原,030024 |
| |
| 基金项目： | 山西省工业科技攻关计划项目(20080321048) |
| |
| 摘 要： | Y6DL-3型动态电阻应变仪采用交流供桥、载波放大的型式,但在使用中该应变仪中的LCπ型滤波器没有将载波信号完全滤掉,影响了小信号的测量。针对上述实际情况,利用滤波器设计软件Filterlab2.0设计了一个四阶巴特沃斯有源低通滤波器,将其应用在Y6DL-3型动态电阻应变仪中,实验结果表明：所设计的滤波器可以有效抑制载波信号,提高信噪比,得到了理想的滤波效果。为解决同类仪器中的信号干扰问题提供了一种很好的思路和方法。
|
| 关 键 词： | 动态电阻应变仪 载波信号 Filterlab2.0软件 有源低通滤波器 |
Research on the measurement of small signal in Y6DL-3 dynamic resistance strain gauge |
| |
| ZHANG Chun-hui , WANG Shi-ying , LI Xiang-peng. Research on the measurement of small signal in Y6DL-3 dynamic resistance strain gauge[J]. Electronic Instrumentation Customer, 2012, 19(1): 64-67 |
| |
| Authors: | ZHANG Chun-hui WANG Shi-ying LI Xiang-peng |
| |
| Affiliation: | (College of Mechanical Engineering,Taiyuan University of Technology Taiyuan 030024,China) |
| |
| Abstract: | The type of AC(Alternating Current) bridge and carrier amplification were used in Y6DL-3 dynamic resistance strain gauge.The carrier signal was not filtered out by theπtype filter in the dynamic resistance strain gauge completely.The measurement of small-signal would be affected by the carrier signal.In view of the above practical situation,a Butterworth low-pass active filter was designed based on the Filterlab2.0 software.Then it was made and applied in the dynamic resistance strain gauge.The results show that: The filter can restrain the carrier signal and enhance the signal-to-noise effectively and get the good effect.An effective method was offered for the solution of the signal disturb problems in similar electronic instruments. |
| |
| Keywords: | dynamic resistance strain gauge carrier signal Filterlab2.0 software active low-pass filter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
