frequency modulation method meaning in Chinese

调频法

3 using current injecting frequency modulation method and modulating sine wave around the resonator point , the lock - in phenomena is observed in a comparatively short period of time . this has achieved the basic goal for a closed loop r - fog
3 、采用电流注入法，在谐振点附近进行正弦调制，实现了对谐振点的短时间锁定，达到了闭环光纤陀螺设计的首要基本要求。
In the end , this thesis tests the resonator with three methods in case that it is both open looped and closed looped , and gets the results listed below : 1 taking 1 mhz frequency width ld as the light source , using current injecting frequency modulation method , the output characteristic of the resonator is got , which proves that the laser used in the lab can be used to modulate the frequency using current injecting frequency modulation
本文最后采用三种不同的方法对谐振式光纤陀螺进行了开环和闭环的实验测试，并取得了以下实验结果： 1 、用频宽1mhz的ld作光源，采用电流注入调频的方法，观测到了谐振腔的输出特性曲线。证明了实验采用的激光器可以通过注入电流的方法实现调频。