| 压电加速度传感器输出信号可变增益控制 |
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| 引用本文： | 张建新,张合. 压电加速度传感器输出信号可变增益控制[J]. 测试技术学报, 2011, 25(4): 332-336. DOI: 10.3969/j.issn.1671-7449.2011.04.012 |
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| 作者姓名： | 张建新 张合 |
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| 作者单位： | 南京理工大学智能弹药技术国防重点学科实验室,江苏南京,210094 |
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| 摘 要： | 针对压电加速度传感器信号调理电路中标定过程繁琐、标定效率低下、系统在运行过程中输出信号增益不能改变的问题,提出了在电荷放大器之后由微控制器控制数字电位器组成可调增益的电压放大电路,实现加速度计输出信号的自动标定和增益的可变控制.分析压电式加速度计的信号调理电路,在电压放大电路中选择使用数字电位器的方法实现可变增益控制,...
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| 关 键 词： | 信号调理 加速度传感器 数字电位器 可变增益 传感器标定 |
Variable Gain Control for the Piezoelectric Acceleration Sensor Output Signal |
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| ZHANG Jianxin,ZHANG He. Variable Gain Control for the Piezoelectric Acceleration Sensor Output Signal[J]. Journal of Test and Measurement Techol, 2011, 25(4): 332-336. DOI: 10.3969/j.issn.1671-7449.2011.04.012 |
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| Authors: | ZHANG Jianxin ZHANG He |
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| Affiliation: | ZHANG Jianxin,ZHANG He(ZNDY of Ministerial Key Laboratory(Nanjing University of Science and Technology),Nanjing University of Science and Technology,Nanjing 210094,China) |
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| Abstract: | Aiming at the problems of cumbersome circuit calibration process,low calibration efficiency,invariable gain when the system is running,we proposed a gain-adjustable signal conditioning circuit of the piezoelectric acceleration sensor.The circuit employed a micro controller controlled digital potentiometer after the charge amplifier to achieve the automatic calibration and variable gain control of the accelerometer output signal.This circuit has been applied to the sensor circuit calibration and the overload... |
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| Keywords: | signal processing acceleration sensor digital potentiometer variable gain sensor calibration |
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