This instrument can clue on baseline shift to decide the frequency of background scanning, which can deduce NIR analysis error and improve NIR veracity.

该仪器具有基线漂移提示功能，从而确定仪器背景采集的频率，可以降低分析误差，提高检测结果的准确度。

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Furtheremore, the analysis indicates that the Doppler frequency shift cannot be Used to explain the wavelength self-scanning initially towards the longer wavelength.

进一步的分析显示，多普勒频移不能解释朝长波方向扫描的波长自扫描现象。

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The electro optic sampling system constructed with the multiple frequency phase shift scanning method was introduced.

分析了倍频移相扫描法的工作原理，介绍了用倍频移相扫描法构成的电光采样测量系统。

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