This paper describes some methods, steps and attentions using a spectrum analyzer in phase noise measurement.
本文叙述了用频谱分析仪测量相位噪声的方法，步骤和应注意的问题。
Nuclear spectrum measurement is one of the important methods for material composition analysis and radioactivity measurements.
核能谱测量是进行物质成分分析与放射性测量的重要方法之一。
Fingerprints mean that the diagrams got by methods such as spectrum or chromatogram etc. measurement divides the characteristic diagrams or pictures of the components.
指纹图谱是指经光谱或色谱等方法测定得到的组分群体的特征图谱或者图像。
The Lambert Beer Law is introduced and the factors affecting the infrared spectrum are analyzed. It is important to comprehend this theory for selecting measurement methods and explaining the spectra.
通过介绍郎勃特-比尔定律，分析了采用直接透射技术测试宝石红外光谱的影响因素，对测试方法的选择、光谱的分析有指导意义。
Because of the complex operation and lots of the measuring items, traditional methods of measurement and calibration of spectrum analyzer are time-consuming and effort-consuming.
在对其进行计量和检定的过程中，由于操作复杂，需要测试的参数多，手动测试相当耗时耗力。
Because of the complex operation and lots of the measuring items, traditional methods of measurement and calibration of spectrum analyzer are time-consuming and effort-consuming.
在对其进行计量和检定的过程中，由于操作复杂，需要测试的参数多，手动测试相当耗时耗力。
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