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Alternative TitlePhase modulation imaging mode scanning device and method of SICM
刘连庆; 李鹏; 李广勇; 王越超; 杨洋; 张常麟
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002
Other AbstractThe invention relates to a phase modulation imaging mode scanning device of an SICM. The scanning device comprises a signal generator, a phase-locked amplifier, a patch clamp amplifier, a controller, a probe, an XY nanometer platform and a Z-direction nanometer piezoelectric ceramic. The signal generator, the patch clamp amplifier, the phase-locked amplifier and the controller are connected in sequence; the signal generator is connected with the phase-locked amplifier; and the patch clamp amplifier is connected with the probe. The method comprises the following steps: the signal generator outputs two paths of AC signals to the phase-locked amplifier and the patch clamp amplifier respectively; the compensation capacitance of the patch clamp amplifier is adjusted; the phase-locked amplifier extracts current component and feeds back the amplitude to the controller; and the controller controls the height of the probe in real time according to the amplitude, and scanning of a sample is realized. According to the phase modulation imaging mode scanning device and method, only the alternating current component under some frequency is extracted to serve as the feedback value, so that the defects of DC drifting and easy electrical noise influence under a DC mode and the like can be overcome; and compared with a conventional AC mode, the method realizes higher modulation frequency, and the purpose of accelerating scanning can be realized.
PCT Attributes
Application Date2014-07-24
Date Available2019-01-22
Application NumberCN201410357300.5
Open (Notice) NumberCN105301290A
Contribution Rank1
Document Type专利
Recommended Citation
GB/T 7714
刘连庆,李鹏,李广勇,等. 一种SICM的相位调制成像模式扫描装置和方法[P]. 2016-02-03.
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File name: CN201410357300.5.pdf
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File name: CN201410357300.5授权.pdf
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