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一种SICM的幅度调制成像模式扫描装置和方法
Alternative TitleSICM amplitude modulation imaging mode scanning device and method
刘连庆; 李鹏; 李广勇; 王越超; 杨洋; 周磊; 王栋
Department机器人学研究室
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
Country中国
Subtype发明
Status实审
Abstract本发明涉及一种SICM的幅度调制成像模式扫描装置,包括信号发生器、膜片钳放大器、有效值转换电路、控制器、探针、XY纳米平台和Z向纳米压电陶瓷;所述信号发生器、膜片钳放大器、有效值转换电路、控制器依次连接;方法包括:信号发生器输出交流信号到膜片钳放大器;调节膜片钳放大器的补偿电容值;有效值转换电路计算出电流幅值的有效值,并将幅值有效值反馈至控制器,控制器根据该幅值有效值实时控制探针高度,实现样品的扫描。本发明使用交流电流幅值作为反馈值,因此能克服直流模式下直流漂移、易受电气噪声影响等缺点;具有比传统交流模式更高的调制频率,可实现加快扫描的目的。
Other AbstractThe invention relates to an SICM (Scanning Ion Conductance Microscope) amplitude modulation imaging mode scanning device, comprising a signal generator, a patch clamp amplifier, an effective value conversion circuit, a controller, a probe, an XY nano platform, and a Z-direction nano piezoelectric ceramic element, wherein the signal generator, the patch clamp amplifier, the effective value conversion circuit and the controller are connected in sequence. A method provided by the invention comprises the following steps: the signal generator outputs an alternating current signal to the patch clamp amplifier; the compensation capacitance of the patch clamp amplifier is adjusted; and the effective value conversion circuit calculates the effective value of current amplitude, and feeds the effective value of amplitude back to the controller, and the controller controls the height of the probe in real time according to the effective value of amplitude to realize sample scanning. According to the invention, the alternating current amplitude is used as a feedback value, so the defects of a direct-current mode such as direct-current drift and vulnerability to electrical noise are overcome. Higher modulation frequency is achieved compared with the traditional alternating-current mode, and scanning is accelerated.
PCT Attributes
Application Date2015-01-15
2016-08-10
Application NumberCN201510023158.5
Open (Notice) NumberCN105842484A
Language中文
Contribution Rank1
Document Type专利
Identifierhttp://ir.sia.cn/handle/173321/19061
Collection机器人学研究室
Affiliation中国科学院沈阳自动化研究所
Recommended Citation
GB/T 7714
刘连庆,李鹏,李广勇,等. 一种SICM的幅度调制成像模式扫描装置和方法[P]. 2016-08-10.
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