| 声表面波陀螺微弱信号接收电路研究 |
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| 引用本文： | 王学德,江城,周敏,高璟. 声表面波陀螺微弱信号接收电路研究[J]. 机械管理开发, 2007, 0(1): 13-14,17 |
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| 作者姓名： | 王学德 江城 周敏 高璟 |
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| 作者单位： | 空军工程大学工程学院航空自动控制工程系,陕西,西安,710038 |
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| 摘 要： | 依据声表面波陀螺基本原理的公式推导,声表面波陀螺的输出信号是频率电压信号.由于声表面波压电效应产生的电压信号非常微弱,一般放大不能分辨出信号电压和噪声电压.因而利用锁相放大的方法将此微弱电压信号从噪声信号中提取放大,解决了声表面波陀螺的信号放大问题.
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| 关 键 词： | 声表面波陀螺 微弱电压信号 接收电路 锁相放大 声表面波陀螺 弱信号接收 电路研究 Gyroscope Circuit Weak Signal 问题 信号放大 提取 噪声信号 方法 锁相放大 利用 噪声电压 信号电压 分辨 常微 压电效应 电压信号 频率 |
| 文章编号： | 1003-773X（2007）01-0013-03 |
| 收稿时间： | 2006-03-28 |
| 修稿时间： | 2006-03-282006-10-20 |
Study on Weak Signal Receiving Circuit of SAW Gyroscope |
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| Wang Xuede,Jiang Cheng,Zhou Min,Gao Jing. Study on Weak Signal Receiving Circuit of SAW Gyroscope[J]. Mechanical Management and Development, 2007, 0(1): 13-14,17 |
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| Authors: | Wang Xuede Jiang Cheng Zhou Min Gao Jing |
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| Affiliation: | Wang Xuede Jiang Cheng Zhou Min Gao Jing |
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| Abstract: | The output signal of SAW gyroscope is a voltage signal,concluded from the principle of SAW gyroscope and the principle formula educed.Generally,because the output voltage signal is very weak,the signal voltage and the noise voltage can't be distinguished.This paper makes use of the method of lock-in amplifying to pick up the weak signal from noise.The problem of the output signal amplification of SAW gyroscope is solved. |
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| Keywords: | SAW gyroscope Weak voltage signal Receiving circuit Lock-in amplification |
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