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在液相模式下AFM成像的问题

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lihao posted on Tue, Jan 22 2013 3:20 AM

孙工好, 我最近在做afm液相模式时, 总是无法成功的下针(我用的biolever, 共振频率为37khz, 长度60微米),更别提成像了.

 液相下时,我调好sum后,设置好共振频率, 可是等了十几分钟, 针尖上也没有发现气泡,可就是无法下针, 请求给予解答.

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Verified by Hao Sun

这个37kHz是空气中的共振频,液相下会变化(掉到10kHz左右),需要自己找(manual tune)。频率不对自然下不了针。

 

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Bruker Employee

您用的是什么型号?无法下针时会出现什么现象?一直下针直到探针压断?根本不下针?下针过程中sum,vert和hori的变化如何?

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Top 10 Contributor
129 Posts
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Verified by Hao Sun

这个37kHz是空气中的共振频,液相下会变化(掉到10kHz左右),需要自己找(manual tune)。频率不对自然下不了针。

 

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