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    • 3. 发明授权
    • System and method for high-speed atomic force microscopy with switching between two feedback loops
    • 用于高速原子力显微镜的系统和方法,在两个反馈回路之间切换
    • US09091705B2
    • 2015-07-28
    • US13875122
    • 2013-05-01
    • Boise State University
    • Byung I. Kim
    • G01Q10/06G01Q20/02G01Q30/14G01Q60/38G01Q70/10B82Y35/00
    • G01Q20/02B82Y35/00G01Q30/14G01Q60/32G01Q60/36G01Q60/38G01Q70/10
    • A high-speed atomic force microscope (HSAFM) is disclosed herein. The HSAFM includes a cantilever, a piezotube, an optical detector, a circuit element, and a feedback controller. The cantilever has a probe, and the piezotube is arranged in proximity to the probe. The optical detector is configured to detect deflection of the cantilever, and the circuit element is abutting a first end of the cantilever and is configured to exert a force on the cantilever to resist deflection of the cantilever. The circuit element is communicably connected to the optical detector by a first feedback loop. The feedback controller is communicably connected to the piezotube and configured to modulate the piezotube along the Z-axis towards and away from the probe. And the feedback controller is communicably connected to the optical detector through a second feedback loop.
    • 本文公开了高速原子力显微镜(HSAFM)。 HSAFM包括悬臂,压电管,光学检测器,电路元件和反馈控制器。 悬臂具有探针,并且压电管布置在探头附近。 光学检测器被配置为检测悬臂的偏转,并且电路元件邻接悬臂的第一端并且构造成在悬臂上施加力以阻止悬臂的偏转。 电路元件通过第一反馈回路可通信地连接到光学检测器。 反馈控制器可通信地连接到压电管并被配置成沿Z轴朝向和远离探头调制压电管。 并且反馈控制器通过第二反馈回路可通信地连接到光学检测器。