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韩D小希

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[求助] 求教 low-frequency lock-in techniques 原理

在一篇文献上看到这个,原话如下:
After establishing a safe range of top-gate voltage, the source − drain resistance of each G-GO FET was measured using low-frequency lock-in techniques while sweeping Vtg and back-gate voltage Vbg.
我想问下这个到底是什么原理 称为低频锁相技术?

请高人指教 谢谢
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hustnavy07

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【答案】应助回帖

感谢参与,应助指数 +1
锁相技术是使被控振荡器的相位受标准信号或外来信号控制的一种技术。用来实现与外来信号相位同步,或跟踪外来信号的频率或相位。
2楼2012-03-07 13:14:48
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