Adopt high stability crystal oscillator to ensure precise measurement and full signal input checking.

采用高稳定性的晶体振荡器，保证测量的精度和全输入信号的检查。

The phase detecting error caused by local oscillator frequency drift and non-synchronization of measurement signal and gate signal is eliminated and the measurement speed is improved at the same time.

该方法可以有效的消除因本振信号频率漂移及闸门信号与被测信号的非同步引起的测相误差，同时提高了测量速度。

The process of attenuation measurement is presented, which utilizes a system consisted of a sweep oscillator, a pair of broad-banded horns, and a scalar network analyzer, etc.

陈述了利用扫频信号源、标量网络分析仪和宽带喇叭天线等构成的系统对微波衰减测量的过程，对该方法的诊断误差进行了讨论。

In the experiment, the material reflected light may return to the oscillator cavity, which may result in laser chaos, and the measurement result will be inaccurate.

在该实验中，由于材料的反射光可能进入谐振腔引发激光器混沌，结果会导致材料反射率测量不准确。