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请教一个关于afm setpoint的问题

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rondo posted on Fri, Nov 23 2012 7:42 PM

文献中有一句话说The set point of amplitude ratios of the amplitude set point to the free oscillation amplitude were set as ~0.6 (moderate tapping) to properly reflect local stiffness variations on the film.

我想请教一下,这个具体应该如何操作?只是简单的将amplitude setpoint 设置为0.6

 

非常感谢

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文献的意思是Amplitue setpoint的值与自由振幅的值的比值是0.6,即如果您使用III型或IV型控制器,tune针时使用的target amplitude一般为2V,比率为0.6的意思就是把amplitude setpoint设为1.2V。如果用V型控制器,默认的target amplitude是500mV,比率是0.6就是说把Amplitude setpoint设为300mV。

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