摘要
由声表面波陀螺的基本原理以及原理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。文中利用锁相放大的方法将此微弱的电压信号从噪声中提取放大,解决了声表面波陀螺的信号放大问题。
The output signal of SAW gyroscope is a voltage signal, concluded from the principle of SAW gyroscope and the principle formula educe, Generally, because the output voltage signal is very weak, the signal voltage and the noise voltage can＇t be differed. This paper make use of the method of lock-in amplifying to pick up the weak signal from noise. The problem of the output signal amplify of SAW gyroscope is solved.
出处
《弹箭与制导学报》
CSCD
北大核心
2007年第3期62-64,共3页
Journal of Projectiles,Rockets,Missiles and Guidance
