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为俄歇电子谱仪专用而研制的单频锁定放大器,工作频率6299Hz,灵敏度为1 μV_(FS),最小可检信噪比S/N为1/50。本文讨论了其中的主要技术问题。
The single-frequency lock-in amplifier developed specifically for Auger electron spectroscopy has a 6299 Hz operating frequency with 1 μV FS sensitivity and a minimum detectable S / N of 1/50. This article discusses one of the major technical issues.