| 高性能LVDT位移传感器调理电路设计 |
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| 引用本文： | 胡海涛,高闻. 高性能LVDT位移传感器调理电路设计[J]. 仪表技术, 2012, 0(8): 39-42 |
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| 作者姓名： | 胡海涛 高闻 |
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| 作者单位： | 穆格控制系统(上海)有限公司 |
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| 摘 要： | 通用型LVDT信号调理电路在弹性体试验机中存在信噪比低,带宽不能满足高频闭环位移控制的要求。文章通过预放大和外置四阶低通滤波器设计并实现了一种改进型LVDT位移调理电路,使用结果表明,该改进型设计满足弹性体试验机这类特殊应用对于高性噪比和高带宽的要求。
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| 关 键 词： | LVDT信号调理 低通有源滤波电路 预放大 |
Hi Performance Signal Conditioner Design for LVDT Position Sensor |
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| HU Hai-tao,GAO Wen. Hi Performance Signal Conditioner Design for LVDT Position Sensor[J]. Instrumentation Technology, 2012, 0(8): 39-42 |
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| Authors: | HU Hai-tao GAO Wen |
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| Affiliation: | (Moog Control System(Shanghai) Co.,Ltd,Shanghai 200131,China) |
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| Abstract: | Standard LVDT signal conditioner circuit would produce large signal noise,and its limited bandwidth can’t meet the requirement of high frequency closed loop motion control.An improved LVDT signal conditioner is designed with preamplifier and an external 4th order Butterworth low-passed filter.The result shows that the improved design can fulfill the need of the high signal noise ratio and wide band wide. |
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| Keywords: | LVDT signal conditioner low-passed filter preamplifier |
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